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首页> 外文期刊>Agricultural sciences in China >Analysis of Water Resources Supply and Demand and Security of Water Resources Development in Irrigation Regions of the Middle Reaches of the Heine River Basin, Northwest China
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Analysis of Water Resources Supply and Demand and Security of Water Resources Development in Irrigation Regions of the Middle Reaches of the Heine River Basin, Northwest China

机译：西北海河中游灌区水资源供需与水资源开发安全分析

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摘要

Based on the data for meteorology, hydrology, soil, planting, vegetation, and socio-economic development of the irrigation region in the middle reaches of the Heihe River basin, Northwest China, the model of balance of water supply and demand in the region was established, and the security of water resource was assessed, from which the results that the effects of unified management of water resources in the Heihe River basin between Gansu Province and Inner Mongolia on regional hydrology are significant with a decrease in water supply diverted from Heihe River and an increase in groundwater extracted. In addition, it was found that the groundwater level has been steadily decreasing due to over pumping and decrease in recharges. In present year (2003), the volume of potential groundwater in the irrigation districts is far small because of the groundwater overdraft; even in the particular regions, there is no availability of groundwater resources for use. By 2003, water supply is not sufficient to meet the water demand in the different irrigation districts, the sustainable development and utilization of water resources are not secured, and the water supply crisis occurs in Pingchuan irrigation district. Achieving water security for the sustainable development of society, agriculture, economy, industry, and livelihoods while maintaining or improving the abilities of the management and planning of water resources, determining of the reasonable percentage between water supply and groundwater utilization and water saving in agricultural irrigation are taken into account. If this does not occur, it is feared that the present performance of water development and planning may further aggravate the problem of scarcities of water resources and further damage the fragile ecological system.
机译：基于西北黑河流域中游灌区的气象，水文，土壤，种植，植被和社会经济发展数据，得出该地区水供需平衡模型为建立并评估了水资源的安全性，结果表明，甘肃和内蒙古之间的黑河流域水资源的统一管理对区域水文学的影响显着，而从黑河改道的供水量减少了。并且提取的地下水增加。此外，还发现由于过度抽水和补给量减少，地下水位一直在稳步下降。在当年（2003年），由于地下水超采，灌溉区的潜在地下水量很小。即使在特定地区，也没有可用的地下水资源。到2003年，供水量不足以满足不同灌区的用水需求，无法保证水资源的可持续开发利用，平川灌区发生了供水危机。实现水安全，促进社会，农业，经济，工业和民生的可持续发展，同时保持或提高水资源的管理和规划能力，确定供水和地下水利用之间合理的比例以及农业灌溉节水被考虑在内。如果这种情况不发生，人们担心目前的水开发和规划工作可能会进一步加剧水资源短缺的问题，并进一步破坏脆弱的生态系统。

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