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地处科尔沁沙地、半干旱地带的哲盟,灌溉是农业生产的命脉.哲盟的主要粮食产区大部分集中在西辽河平原上,虽有一定的地表水可资灌溉,但农田用水主要靠机电井作保证.农田耕作层土壤大部分为砂壤土,输水渠道漏水严重,一般亩次灌水定额都超过100m~3.哲盟机电井工程建设发展十分迅速,工农业用水增涨幅度很快,个别地区地下水处于超采状态.仅通辽市每年超采地下水已达2亿m~3,地下水位平均每年下降10cm以上,漏斗中心区降深每年竟达30cm以上.由于气候干旱、地下水资源短缺、灌溉输水损失严重,发展节水灌溉农业势在必行.近年来,电费、油费等农业生产成本不断提高,也迫使广大群众走节水灌溉的道路.近几年我们应用塑膜衬砌土渠开展节水灌溉,深得广大干部和群众的支持,并摸索出一套成功的技术方案,取得了良好的效果.
In the Horqin sandy land and semi-arid zone, irrigation is the lifeblood of agricultural production. Most of the major grain producing areas of the Hsien League are concentrated in the Xiliaohe Plain. Although some of the surface water is irrigated, the main farmland water Rely on mechanical and electrical wells as a guarantee.Agricultural farmland soil mostly sandy loam soil, waterway leakage serious, generally mu times irrigation quotas are more than 100m ~ 3. Zheche mechanical and electrical well construction is developing very rapidly, the growth rate of industrial and agricultural water is very In some areas, groundwater is in an over-exploited state, with Tongliao City alone exceeding 200 million m 3 of groundwater annually, with an average groundwater level drop of more than 10 cm per year, and a decrease of more than 30 cm per year in the center of the funnel. As a result of the arid climate, groundwater resources Shortage, serious loss of irrigation water, the development of water-saving irrigation agriculture is imperative.In recent years, electricity, oil and other agricultural production costs continue to rise, also forced the masses to take the road of water-saving irrigation.In recent years, we use plastic film Lining the canals to carry out water-saving irrigation, won the majority of cadres and the masses of the support, and to explore a set of successful technical solutions, and achieved good results.