干旱区生态环境知识资源中心(Arid): Water and Energy Conservation of Rainwater Harvesting System in the Loess Plateau of China

Arid

	Water and Energy Conservation of Rainwater Harvesting System in the Loess Plateau of China
	Jiang Zhiyun; Li Xiaoyan; Ma Yujun
来源期刊	Journal of Integrative Agriculture
ISSN	2095-3119
出版年	2013
卷号	12 期号:8 页码:1389-1395
英文摘要	Water is the source of all the creatures on the earth and energy is the main factor driving the world. With the increasing population and global change, water and energy conservation have become worldwide focal issues, particularly in the water-stressed and energy-limited regions. Rainwater harvesting, based on the collection and storage of rainfall runoff, has been widely used for domestic use and agricultural production in arid and semiarid regions. It has advantages of simple operation, high adaption, low cost and less energy consumption. This study reviewed rainwater harvesting systems adopted in the Loess Plateau of China and analyzed water use efficiency (WUE) for various rainwater harvesting techniques. Supplemental irrigation using harvested rainwater could increase crop yield by more than 30%, and WUE ranged from 0.7 to 5.7 kg m~(-3) for spring wheat, corn and flax, and 30-40 kg m~(-3) for vegetables. Moreover, energy consumption for rainwater harvesting based on single family was compared with traditional water supply in the city of the Loess Plateau using the life cycle assessment (LCA) method. Results showed that energy consumption yielded per unit harvested rainwater was 25.96 MJ m~(-3) yr~(-1) which was much less than 62.25 MJ m~(-3) yr~(-1) for main water supply in Baoji City, Shanxi Province, meaning that rainwater harvesting saved energy by 139.8% as compared to the main water supply system. This study highlights the importance and potential of rainwater harvesting for water and energy conservation in the near future.
英文关键词	rainwater harvesting water saving energy conservation life cycle assessment (LCA)
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	CSCD
WOS研究方向	Engineering
CSCD记录号	CSCD:4922175
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335262
作者单位	Jiang Zhiyun, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Li Xiaoyan, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Ma Yujun, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.
推荐引用方式 GB/T 7714	Jiang Zhiyun,Li Xiaoyan,Ma Yujun. Water and Energy Conservation of Rainwater Harvesting System in the Loess Plateau of China[J],2013,12(8):1389-1395.
APA	Jiang Zhiyun,Li Xiaoyan,&Ma Yujun.(2013).Water and Energy Conservation of Rainwater Harvesting System in the Loess Plateau of China.Journal of Integrative Agriculture,12(8),1389-1395.
MLA	Jiang Zhiyun,et al."Water and Energy Conservation of Rainwater Harvesting System in the Loess Plateau of China".Journal of Integrative Agriculture 12.8(2013):1389-1395.