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| Agricultural non-point source pollution and countermeasures of dry-hot valley: A review |
| Received:March 12, 2016 |
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| KeyWord:dry-hot valley;agricultural non-point source pollution;endemic |
| Author Name | Affiliation | E-mail | | YANG Chen | Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Institute of Environmental Ecology, Beijing 100012, China | | | SU Ben-ying | Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Institute of Environmental Ecology, Beijing 100012, China | | | FANG Guang-ling | Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Institute of Environmental Ecology, Beijing 100012, China | | | XIANG Bao | Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Institute of Environmental Ecology, Beijing 100012, China | xiangbao@craes.org.cn |
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| Abstract: |
| Dry-hot valley regions, mainly located in Southwest China, are featured of a special climate with rich light and heat resources and trenchant dry wet season. These climatic advantages offer a special agricultural development, such as cultivation of tropical plants, out-of-season crops as well as stereoscopic agriculture. However, such intense agriculture development is and will result in serious non-point source pollution in dry-hot valley regions, which should be highly paid attention to due to their ecological vulnerability. Meanwhile, counter-measures are urgently needed to be raised to solve the non-point source pollution in dry-hot valley regions. In this review, we firstly showed a brief introduction of the agricultural development in the dry-hot valley regions. Then, we discussed the current situation of agricultural non-point source pollution in the dry-hot valley area, and correspondingly analyzed the general and special reasons for the agricultural non-point source pollution in these areas from the two respects of cropping and livestock faming together with local social-culture aspects. Finally, we reviewed both the traditional and newly-developed technologies and methods of controlling agricultural non-point source pollution with analyses of their feasibility and prospect in dry-hot valley. This review will be helpful to prevent and control agricultural non-point source pollution in dry-hot valley regions. |
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