双向转换的系统结构调控方法与半干旱地区的农作物布局

一、临猗县农业生产条件特点及存在问题临猗县位于山西西南部,是晋南盆地中的一个大县。全县面积1356km~2,耕地1.0×10~5ha,水浇地5.27×10~4ha,占耕地的52.7%,人均占有耕地0.227ha。地势平坦,土地肥沃,农业生产条件较好。年降水量为500mm 左右,最高年份曾达到849.8mm,其中5—10月份的降雨量为450mm 左右,同期≥10℃的活动积温在

A Two-ways Transformation Method for System Structural Regulating and the Designing of Crops Arranqement in Semi-arid Regions.

Based on practice,a two-ways transformational method is put forward for system structuralregulating and applied to the designing of agro-ecolomic system.This method is a new wayfor the coordination of overall system objective and subsystem objectives,which has boththeoretical significance and important practical values in solving problems coupling with theagroecological construction of arid and semi-arid regions and in regulating and designing ofagro-ecolomic system.