上蔡县地处豫中南的淮北平原,是一个以种植业为主的农业大县,水资源严重短缺,多年人均占有水资源为全省的1/2、全国的1/10且时空分布不均。近年来,随着工农业、乡镇企业的迅猛发展,尤其是以林果、蔬菜为代表的高效农业的发展,对水的需求量日益增加,加加之连年干旱,地下水我明显下降,农用机耕井井深由80年代的15米下降的90年代的 Shangcai County is located in the Huaibei Plain in southern Henan Province. It is a large agricultural county mainly engaged in planting industry. There is a serious shortage of water resources. For many years, per capita water resources occupy one-half of the province’s total population and one-tenth of the national total. all. In recent years, with the rapid development of industry, agriculture and township and village enterprises, especially the development of highly efficient agriculture represented by fruits and vegetables, the demand for water is increasing day by day. As a result, the groundwater I obviously dropped. By the 15s of the 80s the decline of the 90s