%0 Journal Article
%T Water-saving Irrigation Regionalization and Water-saving Measures in the Irrigation Districts of the Huanghe River Basin<br>引黄灌区节水灌溉分区与节水途径初探
%A FU Guo
%A bin
%A <br>傅国斌
%J 地理科学进展
%D 2000
%I 
%X The irrigation districts of the Huanghe River basin is divided into five different water saving irrigation regions according to regional physical and social features, such as, climatic, topographic, physiognomic, soil, vegetation, geologic, hydrologic, water resource and its utilities, agriculture, economic development etc.. The first region, consisting of the irrigation districts from the riverhead to Lanzhou City, is characterized with rich runoff and little cultivated lands. The irrigation in this region should pay an attention to the new irrigation techniques and small water transferring loss. The second region, covering the irrigation districts from Lanzhou City to He Kou Town, has a negative water balance owing to limited rainfall and highly developed irrigation system. Reconstructing the poor quality and long history irrigation engineering and ameliorating the low efficiency drainage system should be the key problems for the water saving irrigation development in this region. The third region, ranging from He Kou Town to Long Men, has a small amount of irrigation lands and a high silt content. The water saving irrigation planning in this region should be mixed together with the conservation of soil and water. The fourth region, including mainly Wenhe River and Feihe River basins, has the smallest irrigation duty and the highest water use efficiency among the irrigation districts of the Huanghe River Basin. The fifth region is one of the largest irrigation district groups in China and has more irrigation lands than any other regions in the Huanghe River Basin. The water saving irrigation in this region has a close relationship to the silt reducing measures and groundwater exploitation.
%K irrigation districts of the Huanghe River Basin
%K water
%K saving irrigation regionalization
%K water
%K saving measures<br>引黄灌区
%K 节水灌溉分区
%K 节水途径
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=1328CFD3AA22A104E94CC0878E405FDC&aid=F3A571B8E63D48FF&yid=9806D0D4EAA9BED3&vid=2A8D03AD8076A2E3&iid=0B39A22176CE99FB&sid=ED01F5AE50BE09C0&eid=9D453329DCCABB94&journal_id=1007-6301&journal_name=地理科学进展&referenced_num=5&reference_num=17