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DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND AREA IN THE JINGLINXI CATCHMENT, CHINA

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 607-626 doi: 10.15302/J-FASE-2023517

Abstract: However, most ditch-pond studies have been conducted in lowland areas.To test this source-sink assumption in upland areas, this study made observations on the ecological functionbecome sources of pollutants, with the rapid drainage of ditches and the overflow of ponds in upland areas

Keywords： ditches     ponds     non-point source pollution     mountainous areas     nitrogen     phosphorus    

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Development Path of Digital Agriculture in Southwest Mountainous Areas of China in the Context of Chinese

Ma Hongmei, Jin Bijun, Luo Tao, Ding Long, Song Baoan

Strategic Study of CAE 2023, Volume 25, Issue 4,   Pages 50-58 doi: 10.15302/J-SSCAE-2023.07.011

Abstract: Developing modern agriculture in China's southwest mountainous areas using digital technologies isstudy expounds the concept connotation and operation logic of digital agriculture in southwest mountainousareas.field survey data, it analyzes the current status of digital agriculture development in southwest mountainous, thus to deepen the development of digital agriculture in the southwest mountainous areas.

Keywords： southwest mountainous area     digital agriculture     digital technology     infrastructure     Chinese path to    

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Promoting High-Quality Development in Qinba Mountainous Area with Regional Synergy

Sun Zhiyan, Shi Shujie

Strategic Study of CAE 2020, Volume 22, Issue 1,   Pages 25-31 doi: 10.15302/J-SSCAE-2020.01.004

Abstract:

The Qinba mountainous area is one of the 11 contiguous poverty-strickenareas in China and has remarkable ecological values.industrial structure similarity among cities with different levels of development surrounding the Qinba mountainouscore cities in this region play a relatively weak role in stimulating the development of surrounding areasand have almost no interaction with the underdeveloped areas; the high industry homogeneity has become

Keywords： Qinba mountainous area     regional synergy     high-quality development     ecological assets    

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Highlights of special issue on ‘Agriculture in Water-Limited Areas’

Pute WU

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 123-125 doi: 10.15302/J-FASE-2017147

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A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China

Yubao WANG, Lijie SHI, Haojie ZHANG, Shikun SUN

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 195-207 doi: 10.15302/J-FASE-2017153

Abstract: Severe resource shortage and waste of resource in agricultural production make it necessary to assess efficiency to increase productivity with high efficiency and ensure sustainable agricultural development. This paper adopted an input-oriented data envelopment analysis (DEA) method with the assumption of variable returns to scale to evaluate agricultural production efficiency of 100 major irrigation districts in Northwest China in 2010. Major findings of this paper were as follows: firstly, the average value of total technical efficiency, pure technical efficiency and scale efficiency of those irrigation districts in Northwest China were 0.770, 0.825 and 0.931, respectively; secondly, 30% of irrigation districts were technically efficient, while 42% and 32% of them showed pure technical and scale efficiency respectively. Among inefficient decision-making units, total technical efficiency score varied from 0.313 to 0.966, showing significant geographical differences, but geographical differences of pure technical efficiency was more consistent with that of total technical efficiency; thirdly, input redundancy was evident. Inputs of agricultural population, irrigation area, green water, blue water, consumption of fertilizer and agricultural machinery could be reduced by 34.88%, 40.19%, 43.85%, 47.10%, 41.53% and 42.21% respectively without reducing agricultural outputs. Furthermore, irrigation area, green water and blue water had relatively high slack movement though Northwest China which is short of water resources. Based on these results, this paper drew the following conclusions: First, there is huge potential for Northwest China to improve its agricultural production efficiency, and agro-technology not input scale had greater influence on improvement. Second, farmers needed proper guidance in order to reduce agricultural inputs and it is time to centralize agricultural management for overall agricultural inputs regulation and control.

Keywords： agricultural production efficiency     DEA model     input redundancy     irrigation districts     Northwest Arid Areas    

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Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1434-2

Abstract:

• Regional transportation contributed more than local emissions during haze episodes.

Keywords： 2022 Winter Olympics     PM2.5     Source apportionment    

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Development and Challenges of Antarctic Marine Protected Areas

Fu Yu

Strategic Study of CAE 2019, Volume 21, Issue 6,   Pages 9-17 doi: 10.15302/J-SSCAE-2019.06.002

Abstract:

The Antarctic marine protected areas (MPAs) have developed rapidly in

Keywords： Antarctic marine protected areas     Antarctic ocean governance and conservation     scientific data    

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Assessment of metals in dry-toilet collected matters from suburban areas of Ulaanbaatar, Mongolia, using

Xuan LIU,Zifu LI,Eric BOSC,Heinz-Peter MANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 710-718 doi: 10.1007/s11783-013-0592-2

Abstract: matter (DCM) from traditional dry-toilet pits are a potential health and ecological risk in suburban areasIn this study, the characteristics of metals in DCMs from suburban areas of Ulaanbaatar were surveyed

Keywords： heavy metals     suburban areas     dry-toilet     risk assessment    

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Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China

Lei LIU, Xiaoming MA

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 243-254 doi: 10.1007/s11783-010-0276-0

Abstract: The rapid urbanization of China is causing a burden on their water resources and hindering their sustainable development. This paper analyzes effective methods to integrated river basin management (IRBM) using Longgang River basin of Shenzhen as an example, which is the city with the fastest rate of urbanization in China and even the whole world. Over the past 20 years, China has undergone a population boom due to the increase of immigrant workers and rapid development of labor-intensive industries, which led to the sharp increase of water consumption and sewage discharge. However, the construction of the water infrastructure is still lagging far behind the environmental and social development, with only 32.7% of sewage in the district being treated. Currently, every water quality indicator of the Longgang River basin was unable to meet the required corresponding environmental standards, which further aggravated the water shortages of the region. Thus, an analytical framework is proposed to address the IRBM of the study area. The problems with the current management system include the lack of decentralization in decision-making, lack of enforcement with redundant plans, weak management capacity, financial inadequacy, and a poor system of stakeholder participation. In light of the principles of IRBM and the situation of the region, corresponding measures are put forward, including an increase of power given to sub-district offices, fewer but more feasible plans, capacity building among stakeholders, a combination of planning and marketing for overcoming financial inadequacy, and profound reform in the public participation system. The framework and institutional suggestions could inform similar processes in other representative river basins.

Keywords： integrated river basin management (IRBM) model     Longgang River basin     Shenzhen     decentralization     stakeholder participation    

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The Exploration and Practice of the Development of Green Eco-Urban Areas in Guangzhou International Financial

Jia-meng Chen,Peng Liu

Frontiers of Engineering Management 2016, Volume 3, Issue 1,   Pages 87-96 doi: 10.15302/J-FEM-2016003

Abstract: Active exploration has been carried out to determine a pattern for developing green eco-urban areas inresearch, development of green technologies at home and abroad, and indicator systems of green urban areas

Keywords： Guangzhou International Financial City     green eco-urban area     indicator system     case verification    

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FOR USE IN AGROECOSYSTEM IMPROVEMENT IN SEMI-ARID AREAS WITH A FOCUS ON CENTRAL ANATOLIA, TURKEY

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 568-582 doi: 10.15302/J-FASE -2019270

Abstract: Increasing arboreal vegetation in these areas through agroforestry is an important strategy to conserveCasuarina have been evaluated for their potential use in agroecosystem improvement in semi-arid areas

Keywords： actinorrhizal trees / agroforestry / climate change / ecosystem restoration    

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government investment for air pollution control in city clusters: A case from the Beijing–Tianjin–Hebei areas

Frontiers of Engineering Management   Pages 612-624 doi: 10.1007/s42524-023-0269-x

Abstract: Air pollution poses a significant threat to human health, particularly in urban areas with high levelsSpecifically, we focused on the Beijing–Tianjin–Hebei areas as a case study, as the investment primarilytargeted industrial activities in urban areas with the goal of improving living conditions for urban

Keywords： investment efficiency     government investment     air pollution control     three-stage DEA-Malmquist model    

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Combined reticular blind drainage and vertical hierarchical drainage system for landfills located in areas

Wenjing LU,Zhonge FU,Yan ZHAO

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 177-184 doi: 10.1007/s11783-014-0710-9

Abstract: The technology can thus be popularized and applied for water control in landfills located in areas with

Keywords： landfill     reticular blind drain     vertical hierarchical drain     guidance and drainage     impermeable layer    

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Simulation of soil carbon changes due to land use change in urban areas in China

Cui HAO, Jo SMITH, Jiahua ZHANG, Weiqing MENG, Hongyuan LI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 255-266 doi: 10.1007/s11783-013-0485-4

Abstract: Land use change can have a strong impact on soil carbon dynamics and carbon stocks in urban areas.Due to rapid urbanization, large areas of land have been paved, and other areas have undergone rapid

Keywords： land use change     soil carbon     RothC     urban area    

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Title Author Date Type Operation

DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND AREA IN THE JINGLINXI CATCHMENT, CHINA

Journal Article

Development Path of Digital Agriculture in Southwest Mountainous Areas of China in the Context of Chinese

Ma Hongmei, Jin Bijun, Luo Tao, Ding Long, Song Baoan

Journal Article

Promoting High-Quality Development in Qinba Mountainous Area with Regional Synergy

Sun Zhiyan, Shi Shujie

Journal Article

Highlights of special issue on ‘Agriculture in Water-Limited Areas’

Pute WU

Journal Article

A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China

Yubao WANG, Lijie SHI, Haojie ZHANG, Shikun SUN

Journal Article

Ge Yaojun: Wind Engineering and Wind Resistant Application of Bridges in Mountainous Areas (2019.7.6)

葛耀君(高级职称)

27 Jan 2021

Conference Videos

Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during

Journal Article

Development and Challenges of Antarctic Marine Protected Areas

Fu Yu

Journal Article

Assessment of metals in dry-toilet collected matters from suburban areas of Ulaanbaatar, Mongolia, using

Xuan LIU,Zifu LI,Eric BOSC,Heinz-Peter MANG

Journal Article

Integrated river basin management in rapidly urbanizing areas: a case of Shenzhen, China

Lei LIU, Xiaoming MA

Journal Article

The Exploration and Practice of the Development of Green Eco-Urban Areas in Guangzhou International Financial

Jia-meng Chen,Peng Liu

Journal Article

FOR USE IN AGROECOSYSTEM IMPROVEMENT IN SEMI-ARID AREAS WITH A FOCUS ON CENTRAL ANATOLIA, TURKEY

Journal Article

government investment for air pollution control in city clusters: A case from the Beijing–Tianjin–Hebei areas

Journal Article

Combined reticular blind drainage and vertical hierarchical drainage system for landfills located in areas

Wenjing LU,Zhonge FU,Yan ZHAO

Journal Article

Simulation of soil carbon changes due to land use change in urban areas in China

Cui HAO, Jo SMITH, Jiahua ZHANG, Weiqing MENG, Hongyuan LI

Journal Article