论文部分内容阅读
一、中、低产田土壤特性阿克苏地区中、低产田主要分布在各流域冲积扇上下部和河漫滩低阶地，土壤类型以灌耕棕漠土、灌耕风砂土，灌耕草甸土为多，也有部分潮土和灌淤土。除灌耕棕漠土外，其它类型的中、低产田土壤地下水位均较高，一般在1～3米。这类中、低产田土体潮湿，微
Soil Characteristics of Medium and Low Yield Fields Middle and low yield fields of Aksu are mainly distributed in the upper and lower alluvial fan and lowland of floodplain in each basin. The soil types are mostly irrigated brown soil, irrigated sandy soil, and irrigated meadow soil , But also some Chao soil and irrigation silt. In addition to irrigated brown desert soil, the other types of middle and low yield fields have higher groundwater levels, generally 1 to 3 meters. Such medium and low yield fields soil moisture, micro