压砂田是西北干旱地区在黄土地带的地表铺厚20cm左右的砂石,起到保水保墒、防止水土流失的一种特殊免耕种植方式。2003年以来,宁夏中卫干旱区的农民群众在政府支持主导下,充分利用当地自然条件,压砂田西瓜生产发展迅速,2008年压砂田西瓜面积达到6.67万hm2(图版2),压砂田西瓜主 Sand is a sand pressure in the arid northwestern region of the Loess Plateau about 20cm thick sand, play water and soil moisture, prevent soil erosion a special kind of no-tillage planting. Since 2003, under the support of the government, peasant masses in Ningxia Zhongwei arid region have made full use of the local natural conditions and have made rapid progress in watermelon production in Shatin. In 2008, the area of ​​watermelon in the sand land reached 667,000 hm2 (Plate 2)