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1灌区基本情况张掖市西干渠灌区从黑河引水，是以自流灌溉为主，井灌为辅的干旱区，现有高标准干渠2条，长16．skin；支渠引条，长92．72km，有各类建筑物1560座，机电井195眼（包括人饮水塔井），塘坝4座，形成固定资产总值3977．5万元。全年引提水量约1．9－2．0亿m‘，灌溉
1 Basic situation of irrigation districts The West Main Canal of Zhangye City is irrigated with water from the Heihe River. It is an arid area dominated by gravity irrigation and supplemented by well irrigation. There are 2 high-standard dry-drainage channels with a length of 16. There are 1560 buildings of all kinds, 195 eyes of mechanical and electrical wells (including drinking water tower wells) and 4 ponds, forming a total fixed assets worth 39.775 million yuan. The introduction of water throughout the year about 190-2000000000 m ’, irrigation