土壤水空间分布结构的时间稳定性

被引：37

作者：

周启友

岛田纯

机构：

[1] 筑波大学地球科学系

来源：

土壤学报 | 2003年 / 05期

关键词：

空间分布结构; 时间稳定性; 电阻率成像法; 土壤水分成像法;

D O I：

暂无

中图分类号：

S152.7 [土壤水分];

学科分类号：

摘要：

通过在野外 3 5m× 3 5m的正方形试验区域高密度布置多个电极和定时扫描测定土壤电阻的方法 ,利用反演计算和土壤电阻率与含水量之间的关系 ,计算出了不同时间的土壤含水量在三维空间上的分布。通过对由此获得的含水量资料的分析 ,探讨了土壤水在三维空间上的分布特征及其在时间上的稳定性。结果表明 ,试验区的土壤含水量在三维空间上的分布是非均质的和各向异性的 ,这种非均质性不是随机的而是具有一定的结构或模式 ,这一结构或模式在时间上是相对稳定的。

引用

页码：683 / 690

页数：8

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