|
|||||
|
|
| 喀斯特白云岩坡地土壤异质性特征与土壤保育模式研究 | |
| 引用本文： | 何永彬,张信宝,李豪.喀斯特白云岩坡地土壤异质性特征与土壤保育模式研究[J].地球与环境,2013,41(1):77-81. |
| 作者姓名： | 何永彬 张信宝 李豪 |
| 作者单位： | 1. 云南大学资源环境与地球科学学院云南省地理研究所,昆明,650223 2. 中国科学院水利部成都山地灾害与环境研究所,成都610041;中国科学院地球化学研究所环境地球化学国家重点实验室,贵阳550002 3. 四川农业大学资源环境学院,成都,611130 |
| 基金项目： | 国家重点基础研究发展计划项目(2006CB403203);国家自然科学基金项目(40861016);云南省应用基础研究重点项目(2009CC003)资助 |
| 摘 要： | 在"石漠化"相对较低的白云岩典型坡地上,对石质地块、石土质地块、土石地块和土质地块的土石结构、土壤厚度、土壤颗粒结构等土壤空间异质性特征进行测量分析。随着坡长与坡位的变化,样方内出现受侵蚀后搬移堆积的土壤数量增加,同时土壤厚度的变异系数由1.7降低到0.63,但是>2mm的土壤颗粒比例从13.66%增加到23.48%,土壤侵蚀致使土壤颗粒结构出现"粗粒化"趋势。结合与侵蚀环境因素的相关分析,提出不同土壤异质性特征坡地地段的土壤保育模式。 |
| 关 键 词： | 土壤异质性 土壤保育模式 喀斯特白云岩坡地 研究 |
| 收稿时间： | 2012/2/1 0:00:00 |
| 修稿时间： | 2012/9/4 0:00:00 |
Research on Soil Heterogeneous Characteristics and Soil Conservative Model for Karst Dolomite Slope Land |
|
| HE Yong-bin,ZHANG Xin-bao,LI Hao.Research on Soil Heterogeneous Characteristics and Soil Conservative Model for Karst Dolomite Slope Land[J].Earth and Environment,2013,41(1):77-81. | |
| Authors: | HE Yong-bin ZHANG Xin-bao LI Hao |
| Institution: | 1.School of Resource Environment and Earth Science,Yunnan Institute of Geography,Yunnan University, Kunming 650223,China;2.Institute of Mountain Hazards and Environment,Chinese Academy of Sciences, Chengdu 610041,China;3.State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry, Chinese Academy of Sciences,Guiyang 550002,China;4.Resources and Environment College, Sichuan Agricultural University Chengdu 611130,China) |
| Abstract: | On the karst dolomite slope with relatively low rock desertification,research was carried out with attempts to measure and analyze soil space heterogeneous characteristics such as soil -rock distribution and soil depth and soil particle structure in each slope sampling section including rock section,rock-soil section,soil-rock section and soil section.And consequently along with changes in slope length and slope position,the soil quantities in the sampling section tended to accumulate and increase as a result of slope soil erosion and sediment delivery.The variation index was reduced from 1.7 to 0.63.But the structure of soil particles bigger than 2mm increased from 13.66% to 23.48%,showing soil particles changed from coarser to coarser.In combination with the analysis of erosion environment and its elements,different soil conservative models have been proposed for karst dolomite slope land according to these slope land sections with different soil heterogeneous features. |
| Keywords: | soil heterogeneous characteristic soil conservative model karst dolomite slope land research |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《地球与环境》浏览原始摘要信息 | |
| 点击此处可从《地球与环境》下载免费的PDF全文 | |