[1]李金荣,杨振放,李金玲..不同深度的土壤中硝态氮的空间变异性研究[J].郑州大学学报(工学版),2008,29(04):54-57.[doi:10.3969/j.issn.1671-6833.2008.04.013]
　Li Jinrong,Yang Zhenfang,Li Jinling.Spatial variability of nitrate nitrogen in soil at different depths[J].Journal of Zhengzhou University (Engineering Science),2008,29(04):54-57.[doi:10.3969/j.issn.1671-6833.2008.04.013]
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不同深度的土壤中硝态氮的空间变异性研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
29卷
期数:
2008年04期
页码:
54-57
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:

Spatial variability of nitrate nitrogen in soil at different depths
作者:
李金荣; 杨振放; 李金玲.
郑州大学环境与水利学院,河南,郑州,450001, 河南省地质调查院,河南,郑州,450007
Author(s):
Li Jinrong; Yang Zhenfang; Li Jinling
nitrate nitrogen; spatial variation; regionalized variables; Semivariance

关键词:
硝态氮;  空间变异;  区域化变量;  半方差分析
Keywords:
The nitrate nitrogen content of 100 soils in an area of 2 m200 was sampled at different depths and analyzed by regionalized variable theory and semivariance function. The results show that the nitrate nitrogen content in soil at different depths has spatial variability within a certain range;  which is moderate variation;  and the coefficient of variation of nitrate nitrogen in deep soil is greater than that of shallow soil. The semivariance of nitrate nitrogen content increases with the increase of sampling distance. To a certain extent;  it tends to be stable;  there is a spatial variation structure;  and finally it is fitted to determine the degree of variation and spatial correlation scale;  which is mainly caused by the spatial structure of the soil itself;  and the spatially related scale of nitrate nitrogen content in soil at different depths is different.
DOI:
10.3969/j.issn.1671-6833.2008.04.013
文献标志码:
A
摘要:
对100 m2面积内的200个土壤不同深度取样并分析其硝态氮含量,用区域化变量理论和半方差函数分析.研究结果表明不同深度土壤中硝态氮含量在一定范围内均具有空间变异性,属于中等程度变异,深层土壤硝态氮舍量的变异系数大于浅层土壤的;硝态氮含量的半方差随着取样间距的增加而增加.到一定程度趋于稳定,存在着空问变异结构,最后对其进行拟合,确定其变异程度及空间相关尺度,其变异程度主要由土壤本身的空间结构引起,不同深度土壤中硝态氮含量的空间相关尺度不同.

相似文献/References:

[1]李金荣,杨振放,吴耀国..硝态氮在河流渗滤系统中的环境效应[J].郑州大学学报(工学版),2006,27(01):117.[doi:10.3969/j.issn.1671-6833.2006.01.029]
　Li Jinrong,Yang Zhenfang,Wu Yaoguo.Environmental effects of nitrate nitrogen in river leaching systems[J].Journal of Zhengzhou University (Engineering Science),2006,27(04):117.[doi:10.3969/j.issn.1671-6833.2006.01.029]

更新日期/Last Update: 1900-01-01