摘要
沙地资源的分级分类直接反映其分布特点、生产适宜性乃至土壤肥力和生产潜力状况等,因此其分级评价的方法和水平至关重要。在当今迫切需要农业持续发展时期,它是开发和利用好该资源过程中亟待解决的新问题。本研究考虑了适应性与定量化相结合的需要,创建了"综合指数和法"的沙化土地资源的分级评价方法,该法由经验法发展为定量法,从单一性变为综合性,使固定评价发展到了可预见性的土地评价。
The classification evaluation in desertification ground resource can direct reflected its distributing characteristic, production diversification and potential and soil fertility, so opinion method and level is very important. It is new and urgently resolve problem for the desertification ground resource exploitation and use in agriculture continuance development. The method classification evaluation in desertification ground resource was set up for a needed combined of practicability and ration by the study, which is called integration exponent sum method. The text detailed discussed the method. It is opinion changes from experience to ration, oneness to integration and fixity into forecast.
出处
《水土保持学报》
CSCD
北大核心
2002年第6期23-25,99,共4页
Journal of Soil and Water Conservation
基金
吉林省科学技术委员会"八五"攻关项目:"吉林省西部沙化土壤综合开发与治理的生态建设工程技术研究
关键词
沙地资源
分级评价
综合指数和
desertification ground resource
classification evaluation
integration index sum method
