Improving agricultural water use efficiency in and semiarid areas of China
文献类型：期刊论文
| 作者 | Deng XP ; Shan L ; Zhang HP |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 出版日期 | 2006 |
| 卷号 | 80期号:1-3页码:23-40 |
| 关键词 | water-saving plastic mulch terracing limited irrigation north and northwest China |
| 通讯作者 | Deng, XP |
| 英文摘要 | Water shortage in China, particularly in the north and northwest of China, is very serious. The region accounts for half of the total area of China, but has less than 20% of total national available water resources. While the water shortage in this region is severe, irrigation water use efficiency is only about 40%, with a typical agricultural water use efficiency of about 0.46 kg m(-3). Excessive irrigation in Ningxia and Inner Mongolia has had a significant influence on downstream water users along the Yellow River. It is widely believed that an increase in the agricultural water use efficiency is the key to mitigating water shortage and reducing environmental problems. This paper reviews water-saving agricultural systems and approaches to improve agricultural water use efficiency in the and and semiarid areas of China. The paper will cover biological mechanisms of water-saving agriculture and water-saving irrigation technologies, including low pressure irrigation, furrow irrigation, plastic mulches, drip irrigation under plastic, rainfall harvesting and terracing, In addition, the paper addresses the compensatory effect of limited irrigation and fertilizer supplementation on water use efficiency and highlights the need to breed new varieties for high water use efficiency. Considerable potential for further improvement in agricultural water use efficiency in the region depends on effective conservation of moisture and efficient use of the limited water. (c) 2005 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2012-06-15 |
| 源URL | [http://ir.iswc.ac.cn/handle/361005/4909]  |
| 专题 | 水土保持研究所_水保所知识产出(1956-2013) |
| 推荐引用方式 GB/T 7714 | Deng XP,Shan L,Zhang HP. Improving agricultural water use efficiency in and semiarid areas of China[J]. AGRICULTURAL WATER MANAGEMENT,2006,80(1-3):23-40. |
| APA | Deng XP,Shan L,&Zhang HP.(2006).Improving agricultural water use efficiency in and semiarid areas of China.AGRICULTURAL WATER MANAGEMENT,80(1-3),23-40. |
| MLA | Deng XP,et al."Improving agricultural water use efficiency in and semiarid areas of China".AGRICULTURAL WATER MANAGEMENT 80.1-3(2006):23-40. |
入库方式： OAI收割
来源：水土保持研究所
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