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Unintended nutrient imbalance induced by wastewater effluent inputs to receiving water and its ecological consequences

《环境科学与工程前沿(英文)》 2022年 第16卷 第11期 doi: 10.1007/s11783-022-1584-x

摘要: Eutrophication is the most widespread water quality issue globally. To date, most efforts to control eutrophication have focused on reductions of external nutrient inputs, yet importance of nutrient stoichiometry and subsequent shift in plankton composition in aquatic ecosystem has been largely neglected. To address eutrophication, improved sanitation is one of the United Nations Sustainable Development Goals, spurring the constructions of wastewater treatment facilities that have improved water quality in many lakes and rivers. However, control measures are often targeted at and effective in removing a single nutrient from sewage and thus are less effective in removing the others, resulting in the changes of nutrient stoichiometry. In general, more effective phosphorus removal relative to nitrogen has occurred in wastewater treatment leading to substantial increases in N/P ratios in effluent relative to the influent. Unfortunately, high N/P ratios in receiving waters can impose negative influences on ecosystems. Thus, long-term strategies for domestic wastewater management should not merely focus on the total reduction of nutrient discharge but also consider their stoichiometric balances in receiving waters.

关键词: Nutrient stoichiometry     Wastewater treatment     Ecosystem functioning     Water quality management    

Development and applications of functional gene microarrays in the analysis of the functional diversity, composition, and structure of microbial communities

Zhili HE, Joy D. VAN NOSTRAND, Ye DENG, Jizhong ZHOU

《环境科学与工程前沿(英文)》 2011年 第5卷 第1期   页码 1-20 doi: 10.1007/s11783-011-0301-y

摘要: Functional gene arrays (FGAs) are a special type of microarrays containing probes for key genes involved in microbial functional processes, such as biogeochemical cycling of carbon, nitrogen, sulfur, phosphorus, and metals, biodegradation of environmental contaminants, energy processing, and stress responses. GeoChips are considered as the most comprehensive FGAs. Experimentally established probe design criteria and a computational pipeline integrating sequence retrieval, probe design and verification, array construction, data analysis, and automatic update are used to develop the GeoChip technology. GeoChip has been systematically evaluated and demonstrated to be a powerful tool for rapid, specific, sensitive, and quantitative analysis of microbial communities in a high-throughput manner. Several generations of GeoChip have been developed and applied to investigate the functional diversity, composition, structure, function, and dynamics of a variety of microbial communities from different habitats, such as water, soil, marine, bioreactor, human microbiome, and extreme ecosystems. GeoChip is able to address fundamental questions related to global change, bioenergy, bioremediation, agricultural operation, land use, human health, environmental restoration, and ecological theories and to link the microbial community structure to environmental factors and ecosystem functioning.

关键词: functional gene arrays (FGAs)     GeoChip     microbial communities     functional diversity/composition/structure     environmental factor     ecosystem functioning    

CHALLENGES PROVIDING MULTIPLE ECOSYSTEM BENEFITS FOR SUSTAINABLE MANAGED SYSTEMS

《农业科学与工程前沿(英文)》 2022年 第9卷 第2期   页码 170-176 doi: 10.15302/J-FASE-2022444

摘要:

Since humans started practicing agriculture at the expense of natural forests, 8000 years ago, they have affected atmospheric CO2concentrations. Their impact on atmospheric CH4 started about 5000 years ago, as result of the cultivation of paddy rice. A challenge of modern agricultural practices is to reverse the impact cropping has had on greenhouse gas emissions and the global climate. There is an increasing demand for agriculture to provide food security as well as a range of other ecosystem services. Depending on ecosystem management, different practices may involve trade-offs and synergies, and these must be considered to work toward desirable management systems. Solution toward food security should not only focus on agricultural management practices, but also on strategies to reduce food waste, more socially-just distribution of resources, changes in lifestyle including decarbonization of the economy, as well as reducing human population growth.

关键词: crop diversification / ecosystem services / food security / sustainable cropping systems    

EMERGY analysis for sustainability evaluation of the Baiyangdian wetland ecosystem in China

Weiqing MENG, Cui HAO, Hongyuan LI, Meiting JU,

《环境科学与工程前沿(英文)》 2010年 第4卷 第2期   页码 203-212 doi: 10.1007/s11783-010-0015-6

摘要: This study presents a quantitative and ecological benefit evaluation of the Baiyangdian wetland in China between the years 2000 and 2006. Methods of EMERGY analysis were applied to illustrate the wetland ecosystem, to evaluate the economic and environmental inputs and consequent yields, and to assess the sustainability of the Baiyangdian wetland. The indicators for the integrated ecological and economic system, such as EMERGY yield ratio (EYR) (7.51), EMERGY investment ratio (EIR) (4.52), environmental loading ratio (ELR) (2.92), EMERGY exchange ratio (0.41), and EMERGY sustainable indicator (ESI) (2.57) were calculated, compared, analyzed, and discussed. The non-renewable investment in Baiyangdian was greater than renewable investment, leading to the unsustainable development of the system. High EYR indicated that the Baiyangdian integrated system had created huge profits for its people, while ELR and ESI revealed that human behavior has been a heavy burden on the environment, and countermeasures should be taken by the Chinese government to relieve and resolve these problems. Potential management methods were also proposed in this paper.

关键词: EMERGY analysis     sustainability     wetland ecosystem     indicators    

Innovation Ecosystem for Green Smart City Building in China

Jin Chen

《工程管理前沿(英文)》 2015年 第2卷 第4期   页码 325-330 doi: 10.15302/J-FEM-2015058

摘要: Green Smart City (GSC), is one of the new types of cities which integrates eco-concepts and information technologies. As GSC construction is a resource intensive process, it requires a large amount of knowledge, information, talent and capital. Thus, setting up an innovation ecosystem is an astute way to promote the construction of a GSC. This paper, based on the case study by the Insigma Group, tries to explore the rules of innovation ecosystem building for the construction of GSCs in China.

关键词: green smart city     resource     innovation ecosystem building    

Urban constructed wetlands: Assessing ecosystem services and disservices for safe, resilient, and sustainable

《工程管理前沿(英文)》 2023年 第10卷 第4期   页码 582-596 doi: 10.1007/s42524-023-0268-y

摘要: Climate change and rapid urbanization are pressing environmental and social concerns, with approximately 56% of the global population living in urban areas. This number is expected to rise to 68% by 2050, leading to the expansion of cities and encroachment upon natural areas, including wetlands, causing their degradation and fragmentation. To mitigate these challenges, green and blue infrastructures (GBIs), such as constructed wetlands, have been proposed to emulate and replace the functions of natural wetlands. This study evaluates the potential of eight constructed wetlands near Beijing, China, focusing on their ecosystem services (ESs), cost savings related to human health, growing/maintenance expenses, and disservices using an emergy-based assessment procedure. The results indicate that all constructed wetlands effectively purify wastewater, reducing nutrient concentrations (e.g., total nitrogen, total phosphorus, and total suspended solids). Among the studied wetlands, the integrated vertical subsurface flow constructed wetland (CW-4) demonstrates the highest wastewater purification capability (1.63E+14 sej/m2/yr) compared to other types (6.78E+13 and 2.08E+13 sej/m2/yr). Additionally, constructed wetlands contribute to flood mitigation, groundwater recharge, wildlife habitat protection, and carbon sequestration, resembling the functions of natural wetlands. However, the implementation of constructed wetlands in cities is not without challenges, including greenhouse gas emissions, green waste management, mosquito issues, and disturbances in the surrounding urban areas, negatively impacting residents. The ternary phase diagram reveals that all constructed wetlands provide more benefits than costs and impacts. CW-4 shows the highest benefit‒cost ratio, reaching 50%, while free water surface constructed wetland (CW-3) exhibits the lowest benefits (approximately 38%), higher impacts (approximately 25%), and lower costs (approximately 37%) compared to other wetlands. The study advocates the use of an emergy approach as a reliable method to assess the quality of constructed wetlands, providing valuable insights for policymakers in selecting suitable constructed wetlands for effective urban ecological management.

关键词: constructed wetland     emergy     ecosystem services     disservices     ternary diagram    

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG

《环境科学与工程前沿(英文)》 2014年 第8卷 第1期   页码 106-116 doi: 10.1007/s11783-012-0474-z

摘要: Nitrogen contamination of surface water is a worldwide environmental problem with intensive agriculture and high population densities. We assessed the spatial and seasonal variation in concentrations of total nitrogen and different nitrogen species present in surface-water in Beijing, China. Also, chemical ( ) and isotopic ( ) indicators were used to identify nitrate sources. The results showed that, during 2009 and 2010, nitrate nitrogen concentrations ranged from 0.7 to 7.6 mg·L , ammonium nitrogen from 0.1 to 3.4 mg·L , and total nitrogen from 2.4 to 17.0 mg·L . Inorganic nitrogen accounted for between 60 and 100% of total nitrogen at the ten monitoring sites. Nitrate nitrogen, ammonium nitrogen, and total nitrogen concentrations at the 2 downstream monitoring sites in south-eastern Beijing were significantly higher than those at the other eight upstream monitoring sites ( <0.01). Examination of seasonal variation showed that there was a significant inverse relationship between nitrate nitrogen concentrations and precipitation, and that nitrate nitrogen concentrations peaked in the dry seasons. The information given by the values and nitrate nitrogen concentrations, combined with the ratio distribution, showed that domestic sewage was the major source of nitrate in Beijing. Methods to control and reduce sewage pollution are urgently needed to help manage surface water quality in Beijing.

关键词: nitrogen concentration     spatial and seasonal variation     stable nitrogen isotope     urban ecosystem     source    

Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

《工程管理前沿(英文)》 2014年 第1卷 第1期   页码 37-41 doi: 10.15302/J-FEM-2014007

摘要: Developing a "near-zero emission" coal-based clean energy ecosystem bears great significance for the sustainable development of clean energy in China and the world at large. This article delves into the development strategy, implementation pathways and key priorities of China's "near-zero emission" coal-based clean energy ecosystem, and in turn proposes specific measures to underpin the development and implementation of such system.

关键词: near-zero emission     clean energy ecosystem     study on the path    

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 311-317 doi: 10.1007/s11783-008-0047-3

摘要: Ecosystem health assessment is one of the most important issues in regional ecological quality and safety studies. It also has a great significance to ecological conservation and regional development. This study focused on assessing the health status of forest, agriculture and urban ecosystems in the southwestern Beijing, China, including the Fangshan and Fengtai Districts. Based on field surveys and data collection, an assessment index system containing the vigor, organization and resilience factors was developed to measure the ecosystem health. Each index was scored from 1 to 5, representing five levels that contribute to the whole ecosystem health. The analytic hierarchy process (AHP) method was used to measure the weights of each index and three factors, and thus an overall score for a certain ecosystem was calculated. The results show that the forest ecosystem in the Fangshan District had higher health value than the Fengtai District, while the urban ecosystem had a slightly lower value in the Fangshan District than the Fengtai District. Both districts show lower resilience values in forest and urban ecosystems. Maintaining the ecosystem health will definitely benefit the long-term development of two districts. This study suggested that an approach for assessing the regional ecosystem health could be further developed to address spatial and synergy relationships between ecosystems and the three health factors.

关键词: hierarchy process     regional ecosystem     synergy     agriculture     resilience    

Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

《环境科学与工程前沿(英文)》 2013年 第7卷 第6期   页码 875-885 doi: 10.1007/s11783-013-0568-2

摘要: Maintenance of the ecosystem health of a river is of great importance for local sustainable development. On the basis of both qualitative and quantitative analysis of the influence of natural variations and human activities on the ecosystem function of the Weihe River, the changes in major factors affecting its ecosystem health are determined, which include: 1) Deficiency of environment flow: since the 1960s, the incoming stream flow shows an obvious decreasing tendency. Even in the low flow period, 80% of the water in the stream is impounded by dams for agriculture irrigation in the Baoji district. As a result, the water flow maintained in the stream for environmental use is very limited. 2) Deterioration of water quality: the concentrations of typical pollutants like Chemical Oxygen Demand (COD) and NH -N are higher than their maximum values of the Chinese environmental quality standard. Very few fish species can survive in the River. 3) Deformation of water channels: the continuous channel sedimentation has resulted in the decrease in stream gradient, shrinkage of riverbed and the decline in the capability for flood discharge. 4) Loss of riparian vegetation: most riparian land has been occupied by urban construction activities, which have caused the loss of riparian vegetation and biodiversity and further weakened flood control and water purification functions.

关键词: influencing factors     ecosystem health     ecological and environmental functions     the Weihe River     Shaanxi Province    

SUSTAINABLE CROP AND PASTURE SYSTEMS: FROM ABOVE- AND BELOWGROUND INTERACTIONS TO ECOSYSTEM MULTIFUNCTIONALITY

《农业科学与工程前沿(英文)》 2022年 第9卷 第2期   页码 167-169 doi: 10.15302/J-FASE-2022446

摘要:

Intensive agriculture, characterized by strong reliance on excessive amount of external agrochemical inputs in simplified cropping systems has contributed successfully to feeding an increasing number of humans, but at the expense of severe resource and environmental costs. Consequently, the Earth is facing multifaceted challenges, including increasing food demand both in quantity and quality, global warming associated with extreme weather events, soil degradation and depletion of natural resources. To address some of these challenges, we have developed this Special Issue on Sustainable Crop and Pasture Systems for Frontiers of Agricultural Sciences and Engineering (FASE). The issue addresses the research frontiers of two main themes: (1) aboveground-belowground ecological and physiological mechanisms, processes and ecosystem functions; and (2) the synergies and trade-offs between multiple ecosystem services in sustainable crop and pasture systems. There are 10 articles in this Special Issue including review and research articles with contributions from Australia, China, France, the Netherlands, and the UK. The contributors are all highly-regarded scientists devoted to studies on mechanisms and applications of sustainable crop and pasture systems.

Sustainable crop and pasture systems have a potential to enhance the synergies in multiple ecosystem services, consisting of higher food production, lower environmental impacts and climate change mitigation. To innovate sustainable cropping systems requires deeper and comprehensive understanding of mechanisms underlying above- and belowground interactions. Hans Lambers and Wen-Feng Cong emphasized the importance of diversifying crop species or genotypes with complementary or facilitative functional traits. This will mediate key ecosystem processes related to water, carbon and nutrients, contributing to higher resource-use efficiency and enhancing synergies in ecosystem services ( https://doi.org/10.15302/J-FASE-2022444). Root functional traits such as root exudates are pivotal in nutrient mobilization, either directly mobilizing plant nutrients in the soil or indirectly so via modifications of the soil microbiome. Cathryn A. O'Sullivan and coworkers reported a novel role of root exudates from canola in inhibiting nitrification in soils. They found that these root exudates (called biological nitrogen (N) inhibitors) can significantly reduce nitrification rates of both Nitrosospira multiformis cultures and native nitrifying communities in soil. This would reduce nitrate losses, but increase plant N uptake and microbial N immobilization, subsequently benefiting the following cereal crops through mineralization of this organic N pool ( https://doi.org/10.15302/J-FASE-2021421). Jonathan Storkey and Andrew J. Macdonald used the longest-lasting grassland biodiversity experiment in the world to examine the relationships between plant functional traits and ecosystem services. They reported a strong trade-off between plots with high productivity, N inputs and soil organic carbon and plots with a large number of plant species with contrasting nutrient-acquisition strategies. An increasing proportion of forbs with greater longevity and lower leaf dry matter content can partly mitigate the trade-offs between plant diversity and productivity ( https://doi.org/10.15302/J-FASE-2021438).

John A. Raven further explored synergies or trade-offs of ecosystem services regulated by above- and belowground interactions, mainly functioning through energy, material and information pathways. Solar energy is the key driver for photosynthesis and transpiration, modulating the flow of water and nutrients in soils moving aboveground and the flow of carbohydrates feeding belowground biota. Information transfer can be through hydraulic, electrical and chemical signaling, regulating plant development, abiotic and biotic damage and resource excess and limitation ( https://doi.org/10.15302/J-FASE-2021433).

Timothy S. George and coauthors highlighted the importance of harnessing biodiversity principles and physiological mechanisms in diversified cropping systems to achieve agricultural sustainability. They demonstrate that crop diversification combined with optimized management such as minimum tillage and reduced fertilizer inputs can improve soil quality, promoting soil biotic activities and associated functions. This will reduce the reliance on agrochemical inputs and environmental impacts, and increase climatic resilience ( https://doi.org/10.15302/J-FASE-2021437). Ruqiang Zhang and coworkers applied the One Health concept to design healthy dairy farms. They employed a wide range of soil and plant diversity measures such as intercropping, crop rotation and flower strips at both field and landscape scales to reduce the inputs of fertilizers, pesticides as well as soil compaction caused by heavy machines. The biodiversity-based solutions can help dairy farmers maintain a healthy eco-environment, while producing high-quality milk ( https://doi.org/10.15302/J-FASE-2022445). Emily C. Cooledge and her colleagues show that introducing multispecies leys with perennial legumes and other forbs into arable rotations will achieve multiple ecosystem benefits. This occurs mainly in three ways—return of livestock manure, permanent soil cover and less disturbance of soil—which promote soil food web interactions and soil aggregate stability, subsequently sequestering more carbon in soils ( https://doi.org/10.15302/J-FASE-2021439). Ting Luo and coauthors used the sugarcane cropping system in China as an example and analyzed the current challenges and problems and proposed a wide range of crop, soil and input management practices such as crop rotation, strategic tillage and optimized nutrient management to achieve sustainable sugarcane cropping systems ( https://doi.org/10.15302/J-FASE-2022442).

Focusing on the multi-objective assessment of different cropping systems, Léa Kervroëdan and coworkers assessed the agronomic and environmental impacts of food, feed and mixed (food, feed and biogas) cropping systems. They found that mixed cropping systems had a greater potential of bioenergy production and agronomic performance, but also higher greenhouse gas emissions. This warrants long-term examination of whether short-term higher greenhouse gas emissions can be offset by long-term soil carbon sequestration in this system ( https://doi.org/10.15302/J-FASE-2021435). Jeroen C. J. Groot and Xiaolin Yang applied a new mathematical approach of evolutionary multi-objective optimization to 30 cropping systems practiced on the North China Plain with the aim of overcoming the trade-offs between revenues, energy and nutrient supply and groundwater depletion at a regional level. This approach allows national or regional policymakers to plan growing area of certain sustainable cropping systems ( https://doi.org/10.15302/J-FASE-2021434).

As the Guest Editors, we thank all authors and reviewers for their valuable contributions to this Special Issue on Sustainable Crop and Pasture Systems. We also thank the FASE editorial team for their professional support.

Dr. Wen-Feng Cong, Associate Professor at College of Resource and Environmental Sciences, China Agricultural University. He obtained his PhD at Wageningen University in the Netherlands and conducted postdoctoral research at Aarhus University in Denmark. His research focuses on understanding the mechanisms underlying the positive effects of crop, genotype and cropping system diversity on soil carbon sequestration and soil phosphorus utilization, and applying the ecological mechanisms to design sustainable diversified cropping systems. He is author of over 30 papers in peer-reviewed scientific journals, including Trends in Plant ScienceTrends in Ecology & Evolution, and Global Change Biology. He is leading or participating in sustainable cropping systems related projects funded by the National Natural Science Foundation of China and the Chinese Academy of Engineering. He is acting as a member of the editorial board of Frontiers in Agronomyand Frontiers in Soil Science.

Dr. Hans Lambers, Emeritus Professor at the University of Western Australia and Distinguished Professor at College of Resource and Environmental Sciences, China Agricultural University. He obtained his PhD at the University of Groningen in the Netherlands and conducted postdoctoral research in Australia and the Netherlands, before taking up a position of Professor of Plant Ecophysiology at Utrecht University in the Netherlands and then Professor of Plant Biology and Ecology at the University of Western Australia in Australia. His research focuses on understanding plant–soil interactions and plant nutrition, with an emphasis on Australian plants and crop legumes. He is author of over 550 papers in peer-reviewed scientific journals, including Annual Review of Plant Biology,Trends in Plant ScienceTrends in Ecology & EvolutionNew PhytologistPlant and Soil,Global Change Biology, andNature Plants. He is leading or participating in projects on plant nutrition funded by the Australian Research Council. He is the lead author of an influential textbook, Plant Physiological Ecology (1998, 2008, and 2019), Editor in Chief of Plant and Soil(1992–present), and Associate Editor in Chief ofFrontiers of Agricultural Sciences and Engineering

INTERACTIONS BETWEEN ABOVE AND BELOW GROUND PLANT STRUCTURES: MECHANISMS AND ECOSYSTEM SERVICES

《农业科学与工程前沿(英文)》 2022年 第9卷 第2期   页码 197-213 doi: 10.15302/J-FASE-2021433

摘要:

Interactions between above and below ground parts of plants can be considered under the (overlapping) categories of energy, material and information. Solar energy powers photosynthesis and transpiration by above ground structures, and drives most water uptake through roots and supplies energy as organic matter to below ground parts, including diazotrophic symbionts and mycorrhizas. Material transfer occurs as water and dissolved soil-derived elements transport up the xylem, and a small fraction of water moving up the xylem with dissolved organic carbon and other solutes down the phloem. The cytosolic nature of sieve tubes accounts for at least some of the cycling of K, Mg and P down the phloem. NO3 assimilation of above ground parts requires organic N transport down phloem with, in some cases, organic anions related to shoot acid-base regulation. Long-distance information transfer is related development, biotic and abiotic damage, and above and below ground resource excess and limitation. Information transfer can involve hydraulic, electrical and chemical signaling, with their varying speeds of transmission and information content. Interaction of above and below ground plant parts is an important component of the ecosystem service of storing atmospheric CO2 as organic C in soil, a process that has decreased since the origin of agriculture.

关键词: aerenchyma / carbon accumulation / hormones / phloem / xylem    

Sustainable public-private partnerships: Balancing the multi-actor ecosystem and societal requirements

Pekka Leviäkangas, Yanbing YE, Oluwole Alfred OLATUNJI

《工程管理前沿(英文)》 2018年 第5卷 第3期   页码 347-356 doi: 10.15302/J-FEM-2018020

摘要:

The funding gap of public infrastructure networks (roads, railways, ports, electricity, and energy lines) can be solved partly by introducing private capital for investments, i.e., public-private partnerships (PPP). This paper introduces an integrated model of a PPP project and investigates its implications on PPP policies and strategies regarding appropriate project appraisal and selection. The model has different resolution levels, namely, project level, business ecosystem level, and market and societal levels. The integrated model suggests that investing in merely financially viable projects is insufficient to realize economically and socially sustainable and acceptable projects.

关键词: public-private partnerships (PPP)     project appraisal and selection     integrated model     socially sustainable    

Optimization of Land-use Based on the Theory of Cellular Automata and Value of Ecosystem Services

Lian-fu Jiang,Guo-xian Xu,Hao Jiang

《工程管理前沿(英文)》 2014年 第1卷 第4期   页码 395-401 doi: 10.15302/J-FEM-2014058

摘要: The main objective of the study was to confirm the location and configuration of “Habitat Conservation Area” in Dongguan City. The land utilization condition in the target city was simulated using Arc GIS and Geo SOS software basing on multi-criteria decision model of Cellular Automata (CA). Both the simulation result and accuracy satisfied well the basic requirements. In addition to multi-criteria decision model, space optimization technique was used as well in simulation experiments.

关键词: Ecosystem service function     optimization of land use     Cellular Automata (CA)    

Application of ecosystem health cost-effect analysis in eco-planning in Guangzhou City, China

GUO Xiurui, MAO Xianqiang, YANG Jurong, YANG Zhifeng

《环境科学与工程前沿(英文)》 2007年 第1卷 第3期   页码 299-304 doi: 10.1007/s11783-007-0050-0

摘要: Ecosystem health has been a focal point and research frontier of applied ecology in recent years, increasingly used in urban ecological studies. To quantify the effect of ecological improvement from eco-planning, an ecosystem health assessment method is used in eco-planning evaluation and decision support in the urban eco-planning research of Guangzhou City of China. Based on features of an urban ecosystem, five factors such as vigor, organizational structure, resilience, ability to maintain ecosystem service, and influence on people s health were selected to develop the assessment indicator system. Then, to evaluate the validity of planning measures, a cost-effect analysis of the different scenarios on eco-planning was made, taking investment of the planned projects as the cost and ecosystem health state after implementing the scenarios as the effect. To establish priority of all the proposed planning schemes or countermeasures, variation of the ecosystem health state was evaluated when the investment of eco-environmental construction projects changes by ±10%, ±20% and ±50%, respectively. Thus, the order of importance of eco-environment construction projects to the urban ecosystem health state can be worked out, providing a reference for prioritizing the implementation of such urban eco-environmental projects. The study proved the trial value of an ecosystem health evaluation method in urban eco-planning research.

关键词: ±10 %     decision support     influence     eco-environmental construction     planning    

标题 作者 时间 类型 操作

Unintended nutrient imbalance induced by wastewater effluent inputs to receiving water and its ecological consequences

期刊论文

Development and applications of functional gene microarrays in the analysis of the functional diversity, composition, and structure of microbial communities

Zhili HE, Joy D. VAN NOSTRAND, Ye DENG, Jizhong ZHOU

期刊论文

CHALLENGES PROVIDING MULTIPLE ECOSYSTEM BENEFITS FOR SUSTAINABLE MANAGED SYSTEMS

期刊论文

EMERGY analysis for sustainability evaluation of the Baiyangdian wetland ecosystem in China

Weiqing MENG, Cui HAO, Hongyuan LI, Meiting JU,

期刊论文

Innovation Ecosystem for Green Smart City Building in China

Jin Chen

期刊论文

Urban constructed wetlands: Assessing ecosystem services and disservices for safe, resilient, and sustainable

期刊论文

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG

期刊论文

Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

期刊论文

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

期刊论文

Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

期刊论文

SUSTAINABLE CROP AND PASTURE SYSTEMS: FROM ABOVE- AND BELOWGROUND INTERACTIONS TO ECOSYSTEM MULTIFUNCTIONALITY

期刊论文

INTERACTIONS BETWEEN ABOVE AND BELOW GROUND PLANT STRUCTURES: MECHANISMS AND ECOSYSTEM SERVICES

期刊论文

Sustainable public-private partnerships: Balancing the multi-actor ecosystem and societal requirements

Pekka Leviäkangas, Yanbing YE, Oluwole Alfred OLATUNJI

期刊论文

Optimization of Land-use Based on the Theory of Cellular Automata and Value of Ecosystem Services

Lian-fu Jiang,Guo-xian Xu,Hao Jiang

期刊论文

Application of ecosystem health cost-effect analysis in eco-planning in Guangzhou City, China

GUO Xiurui, MAO Xianqiang, YANG Jurong, YANG Zhifeng

期刊论文