首页> 外文期刊>New Zealand journal of agricultural research >Fractal characteristics of soil under ecological restoration in the agro‐pastoral transition zone of Northern China
【24h】

Fractal characteristics of soil under ecological restoration in the agro‐pastoral transition zone of Northern China

机译:北方农牧交错带生态恢复下土壤的分形特征

获取原文
获取外文期刊封面目录资料

摘要

Abstract Soil particle size distribution (PSD) is an important physical attribute due to its great influence on soil properties related to water movement, productivity, and soil erosion. In this study we use classical and geostatistical methods to identify the changes and characteristics of PSD and selected chemical properties in soil at the 0–20 cm layer from different vegetation covers of ecological restoration along the agro‐pastoral transition zone of northern China. The relationships between the fractal dimension of the PSD (Dm ) and selected soil properties are discussed. The results show that: (1) with the accumulation of vegetation cover, sand content dropped from 867 to 180 g kg‐1, and soil organic matter and nutrients increased significantly; (2) Dm ranged from 2.327 to 2.854. The higher the contents of clay, the higher the fractal dimension and the greater the vegetation; (3) significant linear regressions were found between Dm and soils properties such as sand, silt, clay, organic matter, tota...
机译:摘要土壤粒径分布(PSD)是重要的物理属性,因为它对与水运动,生产力和土壤侵蚀有关的土壤性质影响很大。在这项研究中,我们使用经典和地统计学方法来识别PSD的变化和特征,以及从中国北方农牧交错带不同生态恢复植被覆盖的0-20 cm层土壤中选定的化学性质。讨论了PSD的分形维数(Dm)与所选土壤特性之间的关系。结果表明:(1)随着植被覆盖的积累,含沙量从867gkg-1下降到180gkg-1,土壤有机质和养分显着增加; (2)Dm范围为2.327至2.854。粘土含量越高,分形维数越大,植被越大。 (3)在Dm与土壤特性之间(例如沙,淤泥,粘土,有机质,总有机物)之间发现了显着的线性回归。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号