| 基于TPS插值的黄土丘陵区土壤容重空间分布研究 |
| |
| 引用本文： | 朱乐天,王信增,焦峰.基于TPS插值的黄土丘陵区土壤容重空间分布研究[J].土壤通报,2012(5):1043-1048. |
| |
| 作者姓名： | 朱乐天 王信增 焦峰 |
| |
| 作者单位： | 西北农林科技大学资源与环境学院;西北农林科技大学水土保持研究所;中国科学院水利部水土保持研究所 |
| |
| 基金项目： | 中科院知识创新重要方向项目(KZCX2-EW-406);中国科学院西部之光项目(2009y236);西北农林科技大学科技创新重点项目(QN2011073)资助 |
| |
| 摘 要： | 空间插值方法在各个领域已有了广泛的应用,而不同的研究对象则有适应各自的区域特征的空间插值方法。以延河流域为例,对黄土丘陵区(0~10 cm、10~30 cm和30~60 cm等)三个典型土壤剖面的土壤容重进行空间插值方法比较研究。结果表明:(1)在水平方向,延河流域0~30 cm层面的土壤容重从北到南呈现一个递增的趋势,同南北气候湿润程度以及植被覆盖程度密切相关,而对于30~60 cm的土壤容重在南北方向上则保持相对均衡且与河网分布有关;(2)在垂直方向,土壤容重随着土层加深同样呈现递增的趋势;(3)根据误差分析,薄盘样条函数插值更适宜于该区域关于土壤容重的插值。
|
| 关 键 词： | 土壤容重 薄盘样条函数 插值 延河流域 |
Research of Soil Bulk Density Distribution in Loess Hilly Region Based on TPS Interpolation Methods |
| |
| ZHU Le-tian,WANG Xin-zeng,JIAO Feng.Research of Soil Bulk Density Distribution in Loess Hilly Region Based on TPS Interpolation Methods[J].Chinese Journal of Soil Science,2012(5):1043-1048. |
| |
| Authors: | ZHU Le-tian WANG Xin-zeng JIAO Feng |
| |
| Institution: | 2,3(1.College of Resources and Environment,Institute of Soil and Water Conservation,Northwest A&F University,Yang Ling 712100,China;2.College of Resources and Environment,Yang Ling 712100,China;3.Institute of Soil and Water Conservation,CAS,Yang Ling,Shaanxi 712100,China.) |
| |
| Abstract: | Spatial interpolation methods are widely used in various field,however,different research object has its own appropriate interpolation method for the respective regional characteristic.The article was based on Yan River Basin,the spatial interpolation methods in three typical soil profile(0 ~ 10 cm,10 ~ 30 cm and 30 ~ 60 cm) were compared and researched in loess hilly region.Results:(1) The soil bulk density has increased trend from north to south and closely related with the climate and north-south vegetative cover in the 0 ~ 30 cm soil level.In 30 ~ 60 cm soil level,the soil bulk density was closely related with the river network and distribution equilibrium.(2) With the soil depth,the soil bulk density has increasing trend.(3) According to the analysis of error,TPS interpolation method is more suitable for soil bulk density interpolation in this region. |
| |
| Keywords: | Soil bulk density TPS Interpolation Yan River Basin |
| 本文献已被 CNKI 等数据库收录！ |
|
