XIE Heng-xing,ZHANG Zhen-hua,LIU Ji-long,et al.Research on Soil Water Content Sampling Distance in Orchard[J].Research of Soil and Water Conservation,2006,13(06):311-313,318.
果园土壤含水量适宜取样间距研究
- Title:
- Research on Soil Water Content Sampling Distance in Orchard
- 分类号:
- S152.7;S661.1
- 摘要:
- 在烟台一果园内进行土壤含水量采样后，对土壤水分空间变异特征和土壤水分适宜采样间距进行了研究。结果表明土壤水分实验变异函数符合球状模型，土壤水分空间分布存在几何各向异性，各向异性比为1.01，方向容差为60°，0°方向的滞后距离最大为6.7 m，90°方向的滞后距离最小为4.4 m；对比了东西方向5.7 m、11.4 m、17.1m和南北方向3 m、6m等不同采样间隔的插值精度，结果表明本果园适宜的采样间隔东西方向为5.7 m，南北方向为3 m。
- Abstract:
- After sampling in an orchard of Yantai city,researching on soil water spatial variability and proper soil water sampling distance were conducted.Results showed that soil water experiment variance function display a spherical model,the spatial distribution of soil water content was geometrical heterogeneous,the ratio was 1.01,the tolerance was 60°,the longest lag distance was 6.7 m in 0°direction,and the shortest lag distance was 4.4 m in 90°;The interpolation precision of different sampling distance of 5.7 m,11.4 m,17.1 m in west-east direction and 3 m,6 m in north-south direction were compared,etc.Results showed that the proper sampling distance of this orchard were 5.7 m in west-east direction and 3 m in north-south direction.
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备注/Memo
收稿日期:2006-1-4。
基金项目:烟台师范学院重点基金项目（043201）；人才引进基金（000444）资助；鲁东大学大学生科技创新基金
作者简介:谢恒星（1981- ），男，山东兖州人，在读研研究生，主要从事区域水土资源高效利用研究.
通讯作者:张振华(1971- ) ,男,河北藁城人,博士,教授.