宁南山区发展窑窖节水农业的依据与潜力  

The Bases and Potentialities of Developing Cellor Water Harvest and Water Saving Agriculture in Southern Ningxia Hilly Area

作　　者：陈国良[1] 徐学选[1] 程积民[1] 郭玉孝[1] 赵世伟[1] 

机构地区：[1]中国科学院水土保持研究所,水利部水土保持研究所

出　　处：《水土保持研究》1996年第1期2-7,共6页Research of Soil and Water Conservation

摘　　要：在经济不断发展与人口日益剧增的形势下，缺水已成全球性严峻问题，西北黄土丘陵地区更是如此（地均水量２０４ｍ３／ｈｍ２．ａ，为全国平均数７．８％），其中宁南山区更为贫乏，地均水量为６３０ｍ３／ｈｍ２．ａ，仅占黄土丘陵区与全国平均数的３０．７６％和２．４％，属极贫水地区。相对而言，雨水资源量却较丰富，地均达４０００ｍ３／ｈｍ２．ａ，是地表水与地下水资源量的６．７倍，且有天然集流条件，能就近拦蓄利用，无须高程远距提引，若用于农业节水微灌，其增产效益可达３０％～６０％，单位水效率可达１．５～２．８ｋｇ／ｍ３，故潜力巨大、前景广阔。With economics developing and population increasing, water shortage is becoming more and more serious around the world, especially in northwestern hilly area(including table land). The region water resources is 204m3/hm2. a which accounts for 7. 8% of that in the country. Further the water resources is 630m3/hm2. a in southern Ningxia that aceounts for 30. 8% and 2. 4% of the regions and countys. So it is classed as very extremly water lack area. On the other hand, rainwater is rich, ranges 3 000 ￣ 6 000m3/hm2. a. The mean rainwater is 4 000m3/hm2. a,which is 6. 7 times of on and under ground water resources. Additionally in the reao, the rainwater is easy to be harvest and piped. If the water of cellor or cirsten could be used in economic irrigation, it could increase corp yield by 30%￣60%, the water use officiency could be 1. 5￣2. 8kg/m3. So we say that the rairlwater harvesting and saving agriculture great potentialities and aboard perspects.

关 键 词：宁南山区 蓄水窑窖 节水农业 灌溉 

分 类 号：S274.1[农业科学—农业水土工程]