贵阳市环城林带的形成与岩(土)层关系的研究  

Relation Between Rock(Soil) and Tree Belt Formation in Guiyang

作　　者：李明琴[1] 邓旭升[1] 邓明辉[1,2] 廖义玲[1] 王中美[1] 张竹如[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵州贵阳550025 [2]六盘水市国土资源局,贵州六盘水553000

出　　处：《贵州地质》2013年第2期147-152,159,共7页Guizhou Geology

基　　金：贵州省科学技术基金项目(黔科合J字[2009]2029号)

摘　　要：通过对贵阳市环城林带三个代表性林区(场)的岩-土层剖面、岩(土)层的物质组成特征研究,认为林带的形成与岩(土)层密切相关。环城林带出露岩石主要为粉砂岩、页岩、泥岩和砂岩等碎屑岩石,该类岩石及其风化后形成的土层,主要为难溶而成土的硅酸盐矿物,化学组成主要为SiO2、Al2O3等成土组分,且碎屑岩类抗风化能力极弱,易风化成土。By study the material composition of rock （soil） of 3 forest zones of Guiyang tree belt, it＇ s thought the formation of tree belt has deep relation with rock （soil）. The exposed reck in tree belt mainly are siltstone, shale, mudstone, sandstone and other elastic rocks, these rocks and the soil after weathering mainly is carbonate mineral which is hard to be dissolved, the chemical components mainly are SIO2、Al2O3 and so on, the anti - weathering ability of elastic rock is weak and easy to be soil.

关 键 词：环城林带 岩(土)层物质组成 成因 贵阳市 

分 类 号：S151.21[农业科学—土壤学]