摘要
以四川盆地西缘中低山坡地为研究样地,根据实际地貌特征分别选取3个典型山体、2个典型土壤类型。山体坡面不同坡位下土壤质量综合指数(P I)研究表明土壤质量指数随山体坡面位置相对海拔高度的降低而增高。不同利用方式下土壤质量综合指数(Q I)研究表明,人工林的土壤质量指数值显著偏高,坡耕地的指数值最低。中低山坡地土壤质量的变化特征主要依赖于土地利用与覆盖之间的差异。故必须加强坡耕地规范治理,实施植被保护与重建等一系列土壤资源持续利用措施,实现土壤质量的持续健康发展。
This essay takes middle-low mountains in the western edge of Sichuan basin as the research area,and selects three typical mountains and two soil types according to the practical geomorphic features.The research of the composite index number(PI)of soil quality in different soil locations suggests that,the soil quality index increases as the altitude of mountain slope location decreases.The research of the composite index number(QI)of soil quality in different utilizing ways suggests that,of forest plantation is obviously higher,whereasof sloping cultivated land is the lowest.The distribution configuration of middle-low mountain soil quality mainly depends on the variations between land use and cover,and human activities is the main factor that enhances the variations.So if the stable positive circle of mountain ecosystem and the sustainable development of soil quality are to be realized,a series of measures to improve soil quality and recover ecotope,such as reinforcing the treatment of farm land on the slope,enhancing constructions of the projects of vegetation conservation and protection.
作者
高雪松
邓良基
张世熔
曾敏
GAO Xue-song;DENG iang-ji;ZHANG Shi-rong;ZENG Min(Sichuan Agricultural University Resources and Environment Instiute,Key Laboratory of Land Information in Sichuan Province,Yahn,Sichuan 625014)
出处
《水土保持学报》
CSCD
北大核心
2006年第5期60-64,共5页
Journal of Soil and Water Conservation
基金
四川省教育厅自然科学重点项目资助(2003A009)
关键词
土壤质量
土地利用方式
坡位
利用措施
中低山
soil quality
land use styles
slope position
utilization measure
middle-low mountain
