农业环境科学学报2013，Vol.32Issue(1)：21-28,8.DOI:10.11654/jaes.2013.01.004
不同土地利用方式下崇明岛土壤酶与有机质空间分布特征
Spatial Distribution Characteristic of Soil Enzymes Activity and Organic Matter Under Different Land Use Management Chongming Island
摘要
Abstract
The paper present spatial distribution characteristic of soil enzymes and organic matter under different land use managements using a geostatistics method, which provide the scientific basis for soil utilization and facilitate soil quality. The 0-20 cm, 20-40 cm and 40-60 cm soil layer in Chongming Island were sampled. The results showed that, under different land use management, the organic matter content was highest in industrial soil, and the organic matter content in river way, forestry and farmland decreased significantly with increasing soil depth. Through semivariogram and Moran'sl analysis, we found that soil enzymes spatial variability in Chongming Island were mostly due to random factor, and anisotropic correlogram occur at west-east direction, in which anisotropic spatial variability was smaller from north-south than from west-east direction. Through spatial interpolation analysis, we found that soil enzymes gradually decreased from Chongming midland, living area and industrial districts to eastern wetland and northern farmland. In addition, the soil enzyme activities and high activity area gradually decreased with increasing soil depth.关键词
地统计/空间变异/土壤酶/土地利用Key words
geostatistics/ spatial variability/ soil enzyme/ land use分类
农业科技引用本文复制引用
高扬,汪亚峰,何念鹏,毛亮..不同土地利用方式下崇明岛土壤酶与有机质空间分布特征[J].农业环境科学学报,2013,32(1):21-28,8.基金项目
国家自然科学基金(31200404) （31200404）
中国科学院成都山地所山地表生过程与生态调控重点实验室开放基金(Y2R20050 DD) （Y2R20050 DD）
