摘要
在我国黄土高原丘陵沟壑区,分布着黄绵土、红胶泥土以及土壤与岩石过渡类型——风化岩沫土等土壤类型,由于不同土壤理化性状的巨大差异性,因此对树种的适应性产生较大影响。研究结果表明,红胶泥和风化岩沫土土壤地类主要位于沟谷两岸,地下水供给较为充裕,是浅根性树木生长发育的良好土壤类型;而黄绵土土层深厚,更适宜直根性树木生长发育。
In loess hilly-gully region,there distribute many types of soil,such as loess soil,red clay, mantle rock soil-intergradations between soil and rock,and so on.The different soil physical and chemical characteristics of types of soil affect the sapling adjustability.The research indicates that red clay and mantle rock soil,which distribute both sides of gully and with rich groundwater,are better for shallow-root tree to grow.By contraries,loess soil possessing of deep soil layer,suits for taproot tree.
出处
《水土保持研究》
CSCD
2004年第2期8-11,共4页
Research of Soil and Water Conservation
基金
国家重点基础研究发展规划项目(G2000018606)
"十五"国家科技攻关课题"区域农业协调持续发展战略研究"项目
延河流域世行贷款项目
关键词
适土适树
因土制宜
黄绵土
红胶泥
风化岩沫土
selected tree species suit for soil
adjusting measures to soil
loess soil
red clay
mantle rock soil
