2005, 3(4):38-41.
Abstract:
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 blind ly, serious salification was arosed in part of the irrigation area. Synthesize analysis of the geology hydrogeology condition and the cause of soil sal ification 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 f 17. 94 km2, suitable area for Yellow River water irrigation is 322. 36 km2, the less suitable area is 21. 82 km2, and the inaptitude area for irrigation counts for 106. 44 km2.
