土壤2012，Vol.44Issue(1)：90-94,5.
土地开发对农田土壤养分和盐分变异特征的影响
Effects of Land Development on Spatial Variation of Farmland Nutrients and Salinity
摘要
Abstract
The spatial variability of soil properties after land development was studied with geostatistics method. The results showed that the contents of soil organic matter and soil salinity of topsoil decreased, the available P content increased while the available N content changed little due to land development. Especially, once the land was abandoned, the organic matter content of topsoil reduced significantly. The relationships between soil salinity content and the contents of the organic matter, available N and available K were significantly positive correlation, but there was negative correlation between soil salinity content and the available P content in the topsoil of farmland. Therefore, it is necessary for farmland to increase organic manure and supply potassium fertilizer, and could not to be abandoned after land development.关键词
土地开发/养分/盐分/变异特征Key words
Land development/ Nutrients/ Soil salinity/ Spatial variation分类
农业科技引用本文复制引用
武红旗,谷海斌,陈冰,盛建东..土地开发对农田土壤养分和盐分变异特征的影响[J].土壤,2012,44(1):90-94,5.基金项目
国家自然科学基金项目(40161006)和土壤学自治区重点学科基金项目资助. （40161006）
