佳县郑家沟流域土地资源评价  

The Evaluation of Land Resources in Zhengjiagou Catchment in Jiaxian County

作　　者：黄义端[1] 贾恒义[1] 张竹梅 王淑芝[1] 赵爱秋 

机构地区：[1]中国科学院水利部西北水土保持研究所

出　　处：《水土保持通报》1991年第2期19-25,共7页Bulletin of Soil and Water Conservation

基　　金：黄河水土保持基金

摘　　要：本文主要论述佳县郑家沟流域土地类型、土地生产力分级和土地利用评价等问题。根据土地的性质、土地的适宜性和限制性,建立了土地利用评价系统。研究结果指出,由于流域土地利用不合理,管理措施不当,土壤侵蚀和土地沙化严重,土壤瘠薄,农业生产水平很低。调整土地利用结构,培肥地力,造林种草,是开发该区土地资源,提高土地生产能力,改善生态环境的主要途径。The land types, land productivity classification and land use evaluation in Zhengjiagou catchment located in the north of loess plateau were discussed in this paper. Based on the land properties, the suitability and limitations of land, the land use evaluation system is developed. The results show that there are serious soil erosion and desertification and extensive land degradation in this catchment because of irrational land use and improper managements. We believe that adjusting land-use construction, increasing soil fertility and planting trees and grasses are main measures to exploite efficiently the land resources, to raise land productivity and to improve ecological environment in this catchment.

关 键 词：土地资源 土壤退化 流域管理 

分 类 号：F323.211[经济管理—产业经济]