干旱区生态环境知识资源中心(Arid): 干旱区绿洲土壤含水量季节性变异分析以于田绿洲为例

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	干旱区绿洲土壤含水量季节性变异分析以于田绿洲为例
其他题名	Spatial variability of soil moisture in typical oasis of different seasons in arid areas : a case of Yutian Oasis
	吴雪梅; 塔西甫拉提·特依拜; 买买提·沙吾提; 孙倩; 姜红涛; 张飞
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2014
卷号	37 期号:2 页码:349-355
中文摘要	土壤水分对水圈、生物圈以及大气圈之间的相互作用有着及其重要的影响,是土壤物理学、水文学研究的重要内容。干旱区生态环境脆弱,土壤水分是干旱区植物生长发育所需水分的唯一来源。以和田地区于田绿洲为例,对研究区春、夏、秋季节土壤含水量水平和垂直空间变异性进行分析,揭示干旱区绿洲土壤水分空间变化规律。结果表明:(1)于田绿洲土壤含水量具有季节性规律,春季含水量均值为0.139%,夏季为0.110%,秋季为0.123%,春季含水量高于秋季高于夏季。垂直分布上随着土壤深度的增加,土壤含水量呈逐渐增大的趋势。(2)各个季节、不同深度的土壤含水量的空间自相关性上表示出相似的变化趋势,在空间单元为1时,具有强空间自相关性。 (3)研究区垂直空间分布相关性较弱,变异主要由随机因子作用而产生;绿洲内部土壤含水量明显高于外围地区。
英文摘要	Spatial variability causes uneven soil moisture distribution in the arid area. Soil moisture has an important influence on the interaction among the hydrosphere,the biosphere and the atmosphere,and the precipitation is less and the soil moisture is one of the important factors to maintain the growth of vegetation. In order to analyze the spatial variability of soil moisture and its distribution trend in different seasons and at different soil depths based on the measured data of moisture in the rub of field test and Yutian Oasis, Xinjiang, China taken as the study zone, the geo-statistics combined with GIS was applied to analyze the spatio-temporal variability of the soil moisture content. Soil moisture content measurements were performed biweekly at six depths in soil profile (0-10, 10-20, 20-40, 40-60,60-80,80-100 cm) from April to October. The results shows that Yutian Oasis soil moisture content has a seasonal pattern, the spring average soil moisture is 0.139%,the summer is 0.110%,and the autumn is 0.123%. In the vertical distribution,the soil moisture shows a gradually increasing trend with soil depth increasing. In all seasons,the spatial autocorrelation of soil moisture content at different depths shows a similar trend,with strong spatial autocorrelation as the spatial unit is 1. Human activities are the dominant affect factors. In the study area,soil moisture has significant spatial variability,while spatial correlation is weak; soil water content inside the oasis is higher than that outside the oasis significantly.
中文关键词	土壤含水量 ; 变异函数分析 ; 地统计分析 ; 克里格插值 ; 于田绿洲
英文关键词	soil moisture variogram analysis geo-statistical analysis Kriging method the Yutian Oasis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5124278
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231113
作者单位	新疆大学资源与环境科学学院, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	吴雪梅,塔西甫拉提·特依拜,买买提·沙吾提,等. 干旱区绿洲土壤含水量季节性变异分析以于田绿洲为例[J]. 新疆大学,2014,37(2):349-355.
APA	吴雪梅,塔西甫拉提·特依拜,买买提·沙吾提,孙倩,姜红涛,&张飞.(2014).干旱区绿洲土壤含水量季节性变异分析以于田绿洲为例.干旱区地理,37(2),349-355.
MLA	吴雪梅,et al."干旱区绿洲土壤含水量季节性变异分析以于田绿洲为例".干旱区地理 37.2(2014):349-355.