节点文献
尉犁县生态园区地下水位年变化规律及其影响因素分析
Analysis on the Change of Groundwater Level beneath the Ecological Garden Area and Its Affected Factors in Yuli County, Xinjiang
【摘要】 为了防止孔雀河中下游地区因土地开发利用灌溉抬高地下水位,造成土壤盐渍化,在尉犁县生态园区进行一年的地下水位观测,根据观测资料分析该区主要土壤类型地下水位年变化规律及其影响因素,得出孔雀河中下游地区河水对地下水的影响范围一般为50~100m内的河滩地,其影响特征为:具有变化幅度大,频率高;100m以外其它土地的地下水位则主要受灌溉渗漏水的影响,其特征与河水相反:变化幅度小,频率低;控制地下水位,防止土壤盐碱化的主要措施为调整农业结构和控制灌溉水量。
【Abstract】 The study area, the ecological garden area, is located in a region west from Yuli County Town, its east-west length is 4.5 km, its south-north width is 1~3.5 km, and its total area is about 9 km~2. In the study area it belongs to the arid continental climate characterized by rich sunshine, long frost-free period, little precipitation, high evaporation, frequent occurrence of sand drift disasters, and windy weather. The spring, summer, autumn and winter are for 88, 100, 70 and 107 days respectively. The annual sunshine duration is 297 5 hours, the annual accumulated air temperature≥10°C is 4184°C, and the annual precipitation and evaporation are 43 mm and 2910 mm respectively. In order to control soil salinization due to shallow groundwater level in the middle and lower reaches of the Kongque River, in this paper a one-year observation of groundwater level beneath the ecological garden area in Yuli County in the middle reaches of the Kongque River in Xinjiang is carried out, the change of groundwater level and its affected factors are analyzed. The results reveal that the affecting extent of stream water of the Kongque River to groundwater level varies in a range of 50~100m in width along the flood lands of both riversides, the change extent of groundwater level is high. The groundwater level beneath other land types 100m away from the river channel is mainly affected by irrigation, and the change extent of groundwater level is low. The main measures for controlling soil salinization are to regulate the farming structure and limit the irrigation volume.
- 【文献出处】 干旱区地理 ,Arid Land Geography , 编辑部邮箱 ,2005年05期
- 【分类号】P641.2
- 【被引频次】8
- 【下载频次】180