资源类型

期刊论文 322

会议视频 12

年份

2023 22

2022 35

2021 31

2020 31

2019 28

2018 15

2017 20

2016 17

2015 27

2014 12

2013 7

2012 7

2011 12

2010 14

2009 3

2008 9

2007 5

2006 4

2005 5

2004 2

展开 ︾

关键词

生态文明 14

可持续发展 9

生态环境 7

发展趋势 5

秦巴山脉区域 5

农业科学 4

环境 4

生态保护 4

生态文明建设 4

农业生态工程 3

中国 2

人工智能 2

低碳经济 2

创新设计 2

对策 2

指标体系 2

政策建议 2

氢能 2

生态工程 2

展开 ︾

检索范围：

排序： 展示方式：

Evaluation of the ecological status with benthic indices in the coastal system: the case of Bohai Bay

Wenqian CAI,Wei MENG,Lusan LIU,Kuixuan LIN

《环境科学与工程前沿（英文）》 2014年 第8卷 第5期   页码 737-746 doi: 10.1007/s11783-013-0617-x

摘要： Based on biologic and environmental materials collected from coastal areas of Bohai Bay (China) in April, 2008, three biotic indices (AZTI’s Marine Biotic Index (AMBI), Shannon–Wiener Index and -statistic) were applied together to evaluate the ecological status of the sampling area. The results showed a clear spatial gradient from a worse ecological status in the near-shore areas (especially around Haihe and Jiyun River Estuaries) to a better status in the offshore areas. While all the three indices could assist decision makers in visualizing spatial changes of organic pollutants in Bohai Bay, two indices, i.e., AMBI and Shannon-Wiener index, were effective in distinguishing sites from Haihe River Estuary, Jiyun River Estuary and other area. However, -statistic can’t tell the differences between estuaries and other area. It would be explained that organic pollutants and/or other environmental stresses in Bohai Bay were not strong enough to reduce the size of macrozoobenthos, which may cause both of the abundance and biomass curves crossed. To our knowledge, this is the first time that several benthic indices were used to assess the benthic ecological status in Bohai Bay, which gave the similar results. Furthermore, there is indication that the ecological status is related to excess input of wastewater along main rivers and outlets. In a word, AMBI, Shannon–Wiener Index and -statistic could be able to assess the benthic ecological status of Bohai Bay under the organic pollutants pressure.

关键词： AZTI’s Marine Biotic Index     Shannon-Wiener Index     W-statistic     ecological status     coastal system     Bohai Bay (China)    

HTML PDF 收藏

Spatial distribution of ecological security status assessment of West-Liaohe River based on geographic

WANG Geng, WU Wei

《环境科学与工程前沿（英文）》 2007年 第1卷 第4期   页码 471-476 doi: 10.1007/s11783-007-0075-4

摘要： Eco-security assessment is a hot research area in resource and environmental science, which involves data with much spatial, non-linear, and random features. Geographic information system (GIS), as a useful tool to analyze and mana

关键词： environmental     Eco-security assessment     resource     Geographic information     non-linear    

HTML PDF 收藏

Nutrient status and pollution levels in five areas around a manganese mine in southern China

Kehui Liu, Xiaolu Liang, Chunming Li, Fangming Yu, Yi Li

《环境科学与工程前沿（英文）》 2020年 第14卷 第6期 doi: 10.1007/s11783-020-1279-0

摘要： Abstract • The soil TP level was high or extremely high in all areas. • TN, OM and available Cu were insufficient in EA, TA and RA. • All areas reached the heavily polluted level and had high ecological risk levels. • Mn and Cd were the dominant pollutants. Nutrient status and pollution levels are the main factors affecting soil restoration. The nutrient status and pollution levels in five areas, an unexplored mine area (UA), an explored mine area (EA), a tailings area (TA), a reclamation area (RA) and an agricultural area (AA), around the Pingle manganese mine in Guangxi, China, were assessed in this study. The results showed that the average total phosphorus in these five areas ranged from 1.05 to 1.57 mg/kg, corresponding to grades of extremely high and high. The average total nitrogen values were 0.19, 0.69, 0.93, 1.24 and 1.67 mg/kg in EA, TA, RA, UA and AA, corresponding to grades of very low, low, medium-low, medium-high and medium-high, respectively. The average organic matter values were 12.78, 8.92, 22.77, 21.29 and 29.11 mg/kg in EA, TA, RA, UA and AA, which corresponded to grades of medium-low, low, medium-high, medium-high and medium-high, respectively. All these results indicated that the total phosphorus was sufficient in these areas, while the total nitrogen and organic matter were insufficient in EA, TA and RA. The available concentrations of Mn and Zn corresponded to the intermediate grade, while the values for Cu corresponded to the very low grade; these might be another factor restricting ecological reclamation. Contamination and ecological risk assessments based on the single contamination index, Nemerow multi-factor index and potential ecological risk index showed that the five tested areas around the Mn mine were considered heavily polluted and presented high ecological risk. Mn and Cd were the dominant pollutants.

关键词： Ecological reclamation     Ecological risk assessment     Heavy metal     Mn mine     Soil nutrients    

HTML PDF 收藏

Eutrophication status and control strategy of Taihu Lake

ZHANG Limin, XIA Minfang, ZHANG Lei, WANG Chun, LU Jilai

《环境科学与工程前沿（英文）》 2008年 第2卷 第3期   页码 280-290 doi: 10.1007/s11783-008-0062-4

摘要： The water quality and eutrophication status of Taihu Lake in recent years are presented and the pollution trends are analyzed. It is shown that because of unreasonable industrial structures, pollution discharge per GDP is high within the Taihu basin, and the pollution discharge from point and non-point sources exceed the basin’s environmental carrying capacity. Especially, excessive pollutants containing nitrogen and phosphorus are being discharged. Moreover, eutrophication may also result from internal pollution sources such as the release of nutrient elements from sediment. All these factors have resulted in the water quality deterioration of Taihu Lake. To solve this environmental problem, possible control strategies are summarized, including the control of internal pollution sources and inflow-river pollution, ecological restoration and reconstruction of the degraded lakeside zone ecosystem, clean water diversion, dredging, and manual algae removal.

关键词： eutrophication     GDP     capacity     reconstruction     ecological restoration    

HTML PDF 收藏

我国生态保护和建设概念地位辨析与基本形势判断

沈国舫,李世东

《中国工程科学》 2015年 第17卷 第8期   页码 103-109

摘要：

为明确生态保护和建设的概念及其在生态文明建设中的地位，理清我国生态保护和建设的现状，为新时期生态保护和建设发展战略的确定奠定基础，本文采用文献分析、实地专题调研、专家座谈咨询相结合的方法，对生态保护和建设的基本概念、战略地位、基本形势等进行了深入研究。研究结果表明，生态保护和建设是生态文明建设的三大主题之一，在生态文明建设中乃至对于人类的生存与发展都具有基础性和根本性地位，我国生态保护和建设的基本形势可以概括为“成就明显，局部改善；基础薄弱，形势严峻”。

关键词： 生态保护和建设；基本概念；战略地位；形势判断    

HTML PDF 收藏

我国生态环境大数据发展现状与展望

王运涛,王国强,王桥,张庆竹

《中国工程科学》 2022年 第24卷 第5期   页码 56-62 doi: 10.15302/J-SSCAE-2022.05.021

摘要：

生态环境大数据可以通过提升生态环境治理体系和治理能力现代化来进一步支撑生态文明和美丽中国建设，然而我国生态环境大数据应用还存在思路与技术瓶颈，导致实施、落地困难。面向“十四五”生态环境保护对生态环境大数据的迫切需求，本文总结了我国生态环境大数据的发展现状，分别从机制建设、技术研发及业务支撑三方面分析我国生态环境大数据发展存在的问题，从生态环境状况智能感知与问题识别、演变规律及驱动机制挖掘、环境污染与生态系统受损溯源分析、情景模拟与预测评估、风险预警与应急决策、工作监督与绩效评价等六个方面指出生态环境大数据发展的重点方向，围绕管理机制体制、数据资源意识、技术研发与示范、资金投入与人才培养分别提出我国生态环境大数据发展对策建议，为“十四五”生态环境大数据高质量发展提供支撑。

关键词： 生态环境；大数据；协同机制；资源意识    

HTML PDF 收藏

CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

《农业科学与工程前沿（英文）》 2021年 第8卷 第4期   页码 559-567 doi: 10.15302/J-FASE -2020344

摘要：

Intensifying human activity in the Yangtze River basin has substantially increased nutrient concentrations in the Yangtze River Estuary, leading to degradation of the coastal environment. Analysis of nutrient determinations published over the past 50 years reveals a gradual decreasing trend in the concentrations and fluxes of dissolved silicate (DSi). However, both dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphate (DIP) concentrations have increased significantly since the 1970s. The frequency of and area covered by red tide outbreaks have increased greatly during this period, mainly due to changes in nutrient supply ratios [i.e., N/P (DIN/DIP), N/Si (DIN/DSi), P/Si (DIP/DSi)]. A strong correlation was found between the riverine DIN fluxes and the estimated DIN inputs from the major N sources, particularly fertilizers and atmospheric deposition. The data provide a comprehensive assessment of nutrients in the Yangtze River basin and their ecological impacts and indicate a potentially significant influence of atmospheric deposition on DIN loadings and fluxes.

 

关键词： atmospheric deposition / ecological impacts / nitrogen sources / nutrients / Yangtze delta    

HTML PDF 收藏

Ecological conservation, remediation and construction for building an ecological civilization in China: concepts for ecological activity

Guofang SHEN

《农业科学与工程前沿（英文）》 2017年 第4卷 第4期   页码 376-379 doi: 10.15302/J-FASE-2017186

摘要： This paper explains and discusses the concepts of ecological conservation and construction in China in three parts. The first part provides a brief description of the historical background of ecological activities in China and their major achievements in the past. The second part is a comprehensive review of various types of ecological control activity aimed at the improvement of natural and artificially established ecosystems at the landscape, regional (watershed) and higher levels. The scope of and differences between some ecological terms used in China such as ecological protection, conservation, remediation (rehabilitation), restoration as well as the reestablishment of new ecosystems are elaborated. The review suggests that the term “ecological conservation and construction” should be used to embrace all types of ecological control activity in China. Finally, five guidelines are proposed for promoting the implementation of ecological conservation and construction in China based on the two important governmental documents related to the development of ecological civilization in China.

关键词： ecological conservation     development     construction ”     description     important governmental    

HTML PDF 收藏

Research on port ecological suitability evaluation index system and evaluation model

Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU

《结构与土木工程前沿（英文）》 2015年 第9卷 第1期   页码 65-70 doi: 10.1007/s11709-014-0258-6

摘要： Along with the rapid development of port building, the negative impacts of port’s construction and operation on the coastline ecosystem are also increasingly strong. Therefore, it’s urgent to establish a scientific and complete system of port ecological suitability evaluation. This paper pointed out the characteristics of port ecological effects and the principles of selecting evaluation index, and used the “pressure-state-response (PSR)” model to analysis the various pressures on the environment caused by port construction and operation, and the system’s response. On this basis, we constructed the port ecological suitability evaluation index. This model used the combination of qualitative and quantitative analytic hierarchy process, to meet the multi-level, multi-objective characteristics of evaluation index system. The evaluation index system and evaluation model can be used to analysis the ecological suitability of port projects comprehensively and have some guiding significance to the port ecological suitability evaluation.

关键词： port     ecological suitability     press-state-response (PSR) model     evaluation index system    

HTML PDF 收藏

HIGH QUALITY DEVELOPMENTAL APPROACH FOR SOIL AND WATER CONSERVATION AND ECOLOGICAL PROTECTION ON THE

《农业科学与工程前沿（英文）》 2021年 第8卷 第4期   页码 501-511 doi: 10.15302/J-FASE-2021425

摘要：

The Loess Plateau is the core area in the Yellow River basin for implementing environmental protection and high-quality development strategies. A series of ecological projects has implemented aimed at soil and water conservation and ecological management on the Loess Plateau over the past 70 years. The effects of the ecological projects are apparent mainly through a marked increase in vegetation cover, controlled soil erosion and reduced flow of sediment into the Yellow River, continual optimization of the industrial structure and increased production from arable land, poverty alleviation and greater prosperity, and optimal allocation of space for biological organisms. Major problems have also been analyzed in ecological management including the fragile ecosystem of the region, maintaining the stability of vegetation, lower agricultural productivity and continued risk from natural disasters. Some suitable schemes and models have been developed for the coordinated development of the region through research and demonstration, striking the optimum balance between rural industry and ecology, and increased regional capacity to supply high-quality ecological products. Countermeasures to address the problems are suggested to guide ecological management and high-quality development in the future.

 

关键词： ecological management     high quality development     industrial structure     soil erosion     soil and water conservation     Loess Plateau    

HTML PDF 收藏

CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

Yandan FU, Jiahui KANG, Ziyue LI, Xuejun LIU, Wen XU

《农业科学与工程前沿（英文）》 2021年 第8卷 第4期   页码 559-567 doi: 10.15302/J-FASE-2020344

摘要： Intensifying human activity in the Yangtze River Basin (YRB) has substantially increased nutrient concentrations in the Yangtze River Estuary, leading to degradation of the coastal environment. Analysis of nutrient determinations published over the past 50 years reveals a gradual decreasing trend in the concentrations and fluxes of dissolved silicate (DSi). However, both dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphate (DIP) concentrations have increased significantly since the 1970s. The frequency and area covered by red tide outbreaks have increased greatly during this period, mainly due to changes in nutrient supply ratios [i.e., N/P (DIN/DIP), N/Si (DIN/DSi), P/Si (DIP/DSi)]. A strong correlation was found between the riverine DIN fluxes and the estimated DIN inputs from the major N sources, particularly fertilizers and atmospheric deposition. The data provide a comprehensive assessment of nutrients in the YRB and their ecological impacts and indicate a potentially significant influence of atmospheric deposition on DIN loadings and fluxes.

关键词： atmospheric deposition     ecological impacts     nitrogen sources     nutrients     Yangtze River Delta    

HTML PDF 收藏

Relationship between the development of energy and mineral resources and ecological conservation redline

Dawei ZHANG

《工程管理前沿（英文）》 2019年 第6卷 第4期   页码 557-563 doi: 10.1007/s42524-019-0077-5

摘要： From a philosophical point of view, this study discusses the dialectical relationship between the development of energy and mineral resources and the ecological conservation redline. We propose that the ecological conservation redline and the development of energy and mineral resources should be guided by ecological civilization construction, that is, the energy and mineral resources should be rationally developed under the condition that the ecological environment is protected. This study analyzes the influence of the development of energy and mineral resources on the ecological environment. The handling of mining rights within the ecological conservation redline based on the law and the reduction of the influence of the development of energy mineral resources on the ecological environment by science and technology are presented. The environmental assessment system and technical standards for energy and mineral development are suggested to implement policies and measures for the disposal of mining rights within the redline and facilitate technological innovations of ecological conservation for energy and mineral development. Hence, a coordinated development between the ecological conservation redline and the development of energy and mineral resources can be promoted.

关键词： ecological conservation redline     development of energy and mineral resources     coordinated development    

HTML PDF 收藏

Current status and prospects of reliability systems engineering in China

《工程管理前沿（英文）》 2021年 第8卷 第4期   页码 492-502 doi: 10.1007/s42524-021-0172-2

摘要： This study provides a systematic overview of the advent and evolution of reliability systems engineering (RSE) in China, and the latest RSE development, that is, model-based RSE (MBRSE), is emphatically introduced. The establishment of the system architecture and conceptual models of MBRSE is first described. The fundamental theory and methodology of MBRSE are then elaborated, with a V-model as the core of this approach. The development of various MBRSE platforms and the effectiveness of their implementation over the past 30 years are presented. The prospective trends in the development of RSE in China are outlined.

关键词： reliability     effectiveness     model-based systems engineering     reliability systems engineering    

HTML PDF 收藏

中国红树林湿地与生态工程的几个问题

林鹏

《中国工程科学》 2003年 第5卷 第6期   页码 33-38

摘要：

简述红树林湿地在滨海湿地中的地位，红树林的种类和分布，红树林类群的界定，湿地保护中的重要性，红树林的生态、社会和经济价值。着重讨论中国红树林生态工程中面临的四个问题：1.红树林生态恢复的关键是宜林地的选择标准；2.红树林区海堤修复工程的生态模式；3.防止引种时带进外来有害物种的生态入侵；4.要以最小的资源环境代价，谋求经济社会最大限度的发展，从而促进红树林湿地的保护与发展。

关键词： 红树林     湿地     生态恢复     生态入侵    

HTML PDF 收藏

HOW MULTISPECIES INTERCROP ADVANTAGE RESPONDS TO WATER STRESS: A YIELD-COMPONENT ECOLOGICAL FRAMEWORK

《农业科学与工程前沿（英文）》 2021年 第8卷 第3期   页码 416-431 doi: 10.15302/J-FASE-2021412

摘要：

Absolute yield and land use efficiency can be higher in multicrops. Though this phenomenon is common, it is not always the case. Also, these two benefits are frequently confused and do not necessarily occur together. Cropping choices become more complex when considering that multicrops are subject to strong spatial and temporal variation in average soil moisture, which will worsen with climate change. Intercropping in agroecosystems is expected to buffer this impact by favoring resistance to reduced humidity, but there are few empirical/experimental studies to validate this claim. It is not clear if relatively higher multicrop yield and land use efficiency will persist in the face of reduced soil moisture, and how the relation between these benefits might change. Here, we present a relatively simple framework for analyzing this situation. We propose a relative multicrop resistance (RMR) index that captures all possible scenarios of absolute and relative multicrop overyield under water stress. We dissect the ecological components of RMR to understand the relation between higher multicrop yield and land use efficiency and the ecological causes of different overyield scenarios. We demonstrate the use of this framework with data from a 128 microplot greenhouse experiment with small annual crops, arranged as seven-species multicrops and their corresponding monocrops, all under two contrasting watering regimes. We applied simple but robust statistical procedures to resulting data (based on bootstrap methods) to compare RMR, and its components, between different plants/plant parts. We also provide simple graphical tools to analyze the data.

 

关键词： agroecosystem sustainability     crop overyielding     intercrop drought resistance     overyield ecological components    

HTML PDF 收藏

标题 作者 时间 类型 操作

Evaluation of the ecological status with benthic indices in the coastal system: the case of Bohai Bay

Wenqian CAI,Wei MENG,Lusan LIU,Kuixuan LIN

期刊论文

Spatial distribution of ecological security status assessment of West-Liaohe River based on geographic

WANG Geng, WU Wei

期刊论文

Nutrient status and pollution levels in five areas around a manganese mine in southern China

Kehui Liu, Xiaolu Liang, Chunming Li, Fangming Yu, Yi Li

期刊论文

Eutrophication status and control strategy of Taihu Lake

ZHANG Limin, XIA Minfang, ZHANG Lei, WANG Chun, LU Jilai

期刊论文

我国生态保护和建设概念地位辨析与基本形势判断

沈国舫,李世东

期刊论文

我国生态环境大数据发展现状与展望

王运涛,王国强,王桥,张庆竹

期刊论文

CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

期刊论文

Ecological conservation, remediation and construction for building an ecological civilization in China: concepts for ecological activity

Guofang SHEN

期刊论文

Research on port ecological suitability evaluation index system and evaluation model

Yaofeng XIE,Xia LV,Ru LIU,Liuyan MAO,Xiaoxi LIU

期刊论文

HIGH QUALITY DEVELOPMENTAL APPROACH FOR SOIL AND WATER CONSERVATION AND ECOLOGICAL PROTECTION ON THE

期刊论文

CONCENTRATIONS AND FLUXES OF DISSOLVED NUTRIENTS IN THE YANGTZE RIVER: LONG-TERM TRENDS AND ECOLOGICAL

Yandan FU, Jiahui KANG, Ziyue LI, Xuejun LIU, Wen XU

期刊论文

Relationship between the development of energy and mineral resources and ecological conservation redline

Dawei ZHANG

期刊论文

Current status and prospects of reliability systems engineering in China

期刊论文

中国红树林湿地与生态工程的几个问题

林鹏

期刊论文

HOW MULTISPECIES INTERCROP ADVANTAGE RESPONDS TO WATER STRESS: A YIELD-COMPONENT ECOLOGICAL FRAMEWORK

期刊论文