研究旨在对和田绿洲的水分转化与消耗进行模拟分析,为绿洲今后的水土资源合理开发配置与管理提供科学依据,以期改善绿洲脆弱的生态环境,使绿洲社会经济可持续发展。在系统研究干旱沙漠区"四水"转化规律与和田绿洲水土资源状...研究旨在对和田绿洲的水分转化与消耗进行模拟分析,为绿洲今后的水土资源合理开发配置与管理提供科学依据,以期改善绿洲脆弱的生态环境,使绿洲社会经济可持续发展。在系统研究干旱沙漠区"四水"转化规律与和田绿洲水土资源状况的基础上,开发构建了和田绿洲散耗型水文模型(the Dissipative Hydro-logical Model for Hotan Oasis,DHMHO)。经参数率定与合理性检验,表明该模型具有较高的模拟精度,可以为今后和田绿洲可持续发展政策的制定提供科学性的指导。展开更多
In the arid inland river basins of northwestern China,human activities control almost all the surface hydrologic processes.The potential effects of these altered hydrologic processes are gradually becoming clear,espec...In the arid inland river basins of northwestern China,human activities control almost all the surface hydrologic processes.The potential effects of these altered hydrologic processes are gradually becoming clear,especially since the 2000 implementation of the integrated water resources management projects in the Shiyang River,the Heihe River,the Tarim River,and the Shuler River.While the appearance of these eco-hydrology changes and consequent environmental effects in the oasis has attracted broad attention,related research is still lacking.Eco-hydrological process changes in the desert-oasis ecotone were investigated in the Pingchuan irrigation district in the middle reaches of the Heihe River.The results showed that the annual average amount of surface water irrigation during the past 20 years has decreased by 1.498×107 m3,while the annual average amount of well irrigation has increased by 1.457×107 m3,since 2000,when the State Council of China approved the water diversion scheme for the Heihe River Basin.The groundwater depth before the water diversion scheme generally varied between2.44–3.19 m(average 2.73±0.24 m),while that after the water diversion scheme has varied between 3.08–4.01 m(average3.79±0.62 m).The distribution area of<3 m groundwater depth decreased from 3612 to 394 hm2;while the distribution area of>3 m groundwater depth increased from 853 to 3843 hm2.However,although the hydrologic processes changed dramatically,no significant effects on vegetation productivity in the desert-oasis ecotone were detected during the study period.展开更多
文摘研究旨在对和田绿洲的水分转化与消耗进行模拟分析,为绿洲今后的水土资源合理开发配置与管理提供科学依据,以期改善绿洲脆弱的生态环境,使绿洲社会经济可持续发展。在系统研究干旱沙漠区"四水"转化规律与和田绿洲水土资源状况的基础上,开发构建了和田绿洲散耗型水文模型(the Dissipative Hydro-logical Model for Hotan Oasis,DHMHO)。经参数率定与合理性检验,表明该模型具有较高的模拟精度,可以为今后和田绿洲可持续发展政策的制定提供科学性的指导。
基金supported by the National Natural Science Foundation of China(Grant No.41125002)
文摘In the arid inland river basins of northwestern China,human activities control almost all the surface hydrologic processes.The potential effects of these altered hydrologic processes are gradually becoming clear,especially since the 2000 implementation of the integrated water resources management projects in the Shiyang River,the Heihe River,the Tarim River,and the Shuler River.While the appearance of these eco-hydrology changes and consequent environmental effects in the oasis has attracted broad attention,related research is still lacking.Eco-hydrological process changes in the desert-oasis ecotone were investigated in the Pingchuan irrigation district in the middle reaches of the Heihe River.The results showed that the annual average amount of surface water irrigation during the past 20 years has decreased by 1.498×107 m3,while the annual average amount of well irrigation has increased by 1.457×107 m3,since 2000,when the State Council of China approved the water diversion scheme for the Heihe River Basin.The groundwater depth before the water diversion scheme generally varied between2.44–3.19 m(average 2.73±0.24 m),while that after the water diversion scheme has varied between 3.08–4.01 m(average3.79±0.62 m).The distribution area of<3 m groundwater depth decreased from 3612 to 394 hm2;while the distribution area of>3 m groundwater depth increased from 853 to 3843 hm2.However,although the hydrologic processes changed dramatically,no significant effects on vegetation productivity in the desert-oasis ecotone were detected during the study period.
