Trends of water resource development and utilization in arid north-west China
Trends of water resource development and utilization in arid north-west China
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DOI：
10.1007/s002549900062
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发表时间：
2000-06
期刊：
影响因子：
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通讯作者：
Q. Feng;G. Cheng;M. Masao
中科院分区：
文献类型：
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作者：
Q. Feng;G. Cheng;M. Masao
通过对西北干旱区水资源现状及其开发利用的分析，认为西北干旱区地表水可开发利用量中，渠道水仅占56.0%。渠系利用率为42%，耕地利用率为0.8。当该地区流域的地下水和地表沃茨得到综合开发后，沟道水将达到最大值，占地表水可开发资源总量的80%，比目前地表水资源开发水平提高91%。今后，依靠科技进步，渠系利用率和农田水利用率将达到0.9。引调水与综合开发利用阶段相同，但总用水量将增加247× 108 m3，达到756.8× 108 m3，占西北干旱区地表水可开发资源总量的88.2%。提出了提高水资源利用率的科技措施：加强管理，加强水资源和环境保护，加强节水技术研究。
From an analysis of the current water resources and their development and utilization in arid north-west China, the authors conclude the extent of channelled water accounts for only 56.0% of the total, exploitable surface-water resources of arid north-west China. The utilization ratio of canal systems is 42%, and farmland use is 0.8. When the ground and surface waters of river basins in the region are comprehensively developed, the channelled water will reach its climax, accounting for 80% of the total, exploitable surface-water resources, which would constitute a 91% increase over current levels in surface-water resource development. In the future, the utilization ratio of canal system as well as the utilization ratio of farmland water will reach 0.9 with the help of scientific and technological advancements. The channelled water is the same as the comprehensive development and utilization stages, but the total water use will be increased by 247×108m3, and will reach 756.8×108m3, accounting for 88.2% of the total, exploitable surface-water resources in arid north-west China. Also, the authors suggest that the scientific and technological measures to increase the water-use ratio include improving management, strengthening protection of water resources and the environment, and increasing studies of water saving techniques.