“三北”防护林永寿试区土壤类型及改良利用

SOIL TYPES AND RECLAMATIONAL UTILIZATION IN YONGSHOU EXPERIMENTAL AREA

对永寿试区土壤资源进行了调查和理化性状测定，结果表明：试区土壤包括黑垆土、褐土、黄绵土、潮土、红土5个立类，9个土种，各土壤类型性状差异较大，应根据其特性进行改良和利用。

The soil resources in Yongshou experimental area was surreyed and the characteristics of physics and chemistry were tested. The results indicated that the soil types included five great general-Black Lou soil, He soil, YeIlow cotton soil, Chao soil and Red soil,and nine soil species-The differences of the properties and the shape among the soil types was striking. These soil types should be reclaimed and utilized according to their characteristics.