宁夏扶贫扬黄灌溉工程红寺堡灌区盐渍化发展趋势预测  

Prediction of the Evolving Trend of Salification in the Irrigation-developed Area of Hongsipu, Ningxia

作　　者：余秋生[1] 于艳青[1] 薛忠岐[1] 杨江平 

机构地区：[1]中国地质大学,武汉430074 [2]宁夏地质工程勘察院,银川750021

出　　处：《南水北调与水利科技》2005年第4期38-41,共4页South-to-North Water Transfers and Water Science & Technology

基　　金：宁夏回族自治区财政项目资助

摘　　要：红寺堡灌区是宁夏为使宁南山区人民脱贫致富而建立的移民圩发区。在工程规划过程中,由于未进行水文地质、环境地质调查工作,盲目采取扬黄灌溉方式.使部分灌区产生了较为严重的土壤次生盐渍化。通过对灌区地质、水文地质条件及土壤次生盐渍化形成的背景条件的综合分析,对其发展变化趋势进行了预测。预测结果红寺堡灌区最适宜的农业开发扬黄灌溉区面积有117.94km2;适宜的农业开发扬黄灌溉区面积有322.36 km2;较适宜的农业开发扬黄灌溉区面积有21.82 km2;需谨慎的农业开发扬黄灌溉区面积有106.44 km2。The irrigation-developed area of Hongsipu is a development area for immigration, which is built up by the Ningxia Hui Autonomous Region for the people in the mountains of South Ningxia to castoff poverty and set out on a road to prosperity. For the reason that hydrogeology and environmental geology investigation haven＇t been carried out during planning, and the water of Yellow River was imported for irrigation blindly, serious salification was arosed in part of the irrigation area. Synthesize analysis of the geology-hydrogeology condition and the cause of soil salification was carried out, to predict the developing trends of salification. The prediction results show that, in the irrigation-developed area of Hongsipu, the best farming area suit for irrigation by the water from Yellow River counts for 117.94 km^2 , suitable area for Yellow River water irrigation is 322.36 km^2, the less suitable area is 21.82 km^2, and the inaptitude area for irrigation counts for 106. 44 km^2.

关 键 词：红寺堡灌区 盐渍化 趋势预测 

分 类 号：S274.6[农业科学—农业水土工程]