期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2012

38

1

96-101

10.3724/SP.J.1238.2012.00096

国家“十一·五”科技支撑计划重点项目（2009BADC6B005）； 国家“863计划”项目（2006AA10Z419）；

本校为第一机构

采用地理信息系统(GIS)和地统计学方法研究了湘南丘岗红壤地区土壤表层(0-20 cm)pH值、有机质、碱解氮、有效磷、速效钾、全氮、全磷、全钾8项土壤肥力指标的空间变异特征。结果表明:土壤pH、有效磷、全氮和全钾的理论模型为球状模型,有机质、碱解氮和速效钾的理论模型为指数模型,全磷的理论模型为高斯模型;碱解氮和全磷的基底效应分别为13.6%、19.0%,表现出强烈的空间相关性,土壤pH、有机质、有效磷、速效钾、全氮和全钾的基底效应分别为28.7%、29.9%、54.7%、53.1%、55.6%、73.0%,具有中等的空间相关性;研究区域的书林寺村南部和官山坪村北部以石灰岩风化物母质为主,土壤肥力较高,属Ⅰ~Ⅲ级,幸...

Geographical information system（GIS）combined with geostatistics was applied to reveal the spatial variability of soil fertility quality indices including soil pH,organicmatter,available N,available P,available K,Total N,Total P and Total K in the topsoil（0-20 cm）of southeastern Hunan province.The results showed that theoretical semivariogram models of soil pH,available P,Total N and Total K were best described with an spherical model,whereas the organic matter,available N and available K were best fitted with a exponential model,Total P was...