水土保持研究2013，Vol.20Issue(2)：127-134,8.
新疆克里雅绿洲土壤含水量的空间变异性特征
Spatial Variation of Soil Water Content in Keriya Oasis in Xinjiang
摘要
Abstract
A zonal reeds land located in western part of Karki Village in Keriya Oasis was chosed as a study area, 28 sample points were arranged, the reeds, growth indices such as coverage, height, crown length, crown width and density were collected, three soil layers 0-10, 10-30, 30-50 cm was apareed to take the soil samples. On the bases of soil moisture data, the spatial variability of soil characteristics of reeds land was studied by using the descriptive statistical analysis and geostatistical analysis. And then, the relationship between soil water content in each layer and the growth of reeds was analyzed by using the correlation analysis in order to provide a theoretical base for improving the weak ecosystem of the study area. It could be in-fered that soil moisture on three layers exhibited medium spatial variability based on the descriptive statistical analysis. Soil moisture increased with the increase of soil depth, but the degree of decreased. Characteristics of vertical distribution of soil water content had four distribution types including the bottom assembled type, medio-assembled type, surface assembled type and combination of bottom and surface assembled type. Bottom assembled type was the major soil moisture profile type in this area, followed by the medio-assembled type, then combination of bottom and surface assembled type, the distribution area of surface assembled soil water content profile was the minimum. Correlation analysis between growth of reeds and soil moisture showed that the amount of soil water of each layer and reed growth was positively correlated. The positive effect of soil water content on the growth of reed cover, plant height and density was less obvious compared to its effect on reed crown length and crown width. Soil water content in deep layer played more important role than soil water content of upper layer in promoting the reed growth.关键词
克里雅绿洲/土壤含水量/空间变异性Key words
Keriya oasis/ soil water content/ spatial variability分类
农业科技引用本文复制引用
海米提·依米提,安外尔·艾则孜,赛迪古丽·哈西木,艾则买提·艾赛提..新疆克里雅绿洲土壤含水量的空间变异性特征[J].水土保持研究,2013,20(2):127-134,8.基金项目
国家自然科学基金资助项目(40971020,41201032) （40971020,41201032）
