干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠腹地土壤水分动态

Arid

	古尔班通古特沙漠腹地土壤水分动态
其他题名	Soil moisture variation in south Gurbantunggut Desert
	陈钧杰 1; 蒋进 1; 付恒飞 2; 宋春武 1; 全永威 2
ISSN	1000-6060
出版年	2009
卷号	32 期号:4 页码:537-543
中文摘要	采用土钻法对古尔班通古特沙漠腹地典型自然沙垄剖面土壤含水量进行长期监测.采取多重比较(LSD)、典型相关分析(MANOVA)、并在国内第一次采用季节交乘趋势等统计方法,对土壤水分与环境因子的关系进行分析,研究结果表明:土壤含水量时间变化规律分为补给期、失水期和冻结滞水期.土壤含水量均值为补给期>冻结滞水期>失水期,变异系数为补给期>冻结滞水期>失水期;土壤含水量空间变化规律表现为:阴阳坡间具有极显著差异(P<0.01,F=0.002 9).垄间分别与坡中、垄顶具有显著性差异(P<0.05).垂直变化分为活跃层、过渡层和稳定层,活跃层与其他土层间均有显著性差异(P<0.05),土壤含水量均值为阴坡>阳坡,垄顶>垄间>坡中.活跃层>过渡层和稳定层;变异系数为阴坡>阳坡,垄间>坡中>垄顶,活跃层>过渡层>稳定层;降雨量和温度是影响研究区土壤水分时间分布变化的重要影响因子,同时也是土壤含水量变化的决定性影响因子,与土壤含水量具有显著相关性(P<0.05,F=0.02).
英文摘要	With soil moisture distribution profiles selected in the Curbantunggut Desert, the soil moisture and envi-ronmental factors of the typical sandy dunes were analyzed with multiple comparison methods. Temporal variation characteristics of soil moisture were analyzed according to water-supplying period, desiccation period, frozen stag-nant water period. The measurements of soil moisture were arranged in the following order; water-supplying period’ s > desiccation period’ s > frozen stagnant water period’ s. The coefficient of variation of soil moisture was put in following order: water-supplying period’ s > frozen stagnant water period’ s and desiccation period’ s. The results of the study show as follows; there are significant differences ( P < 0.05 ) in different aspect areas’ soil moistures, the average soil moisture of north slope is larger than that of sunny slope’ s, and there are significant soil moisture differences (P <0.05) among dune’s different areas; the lower area between dunes is characterized by high soil moisture, large amplitude and deep variation depth; the dune top is characterized by low soil moisture, small am-plitude and shallow variation depth; and both slopes of dunes are placed between lower area and dune top men-tioned above relating to soil moisture. According to vertical variation of soil moisture, soil layers can be divided into three ones; active layer,transitional layer and stable layer. There are significant differences (P <0. 05) between the active layer and transitional layer ( and stable layer). Rainfall and temperature are the important factors affect-ing the temporal distribution of soil moisture, to which the soil moisture is closely related (P<0. 05, F =0. 02).
中文关键词	土壤含水量 ; 时空分异 ; 季节交乘趋势模型分析 ; 古尔班通古特沙漠
英文关键词	soil moisture temporal and spatial varition season cross-mulitiplication trend mode Gurbantunggut Desert
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:3583261
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223559
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.新疆额尔齐斯河流域工程开发建设管理局, 乌鲁木齐, 新疆 830000, 中国
推荐引用方式 GB/T 7714	陈钧杰,蒋进,付恒飞,等. 古尔班通古特沙漠腹地土壤水分动态[J]. 中国科学院新疆生态与地理研究所,2009,32(4):537-543.
APA	陈钧杰,蒋进,付恒飞,宋春武,&全永威.(2009).古尔班通古特沙漠腹地土壤水分动态.,32(4),537-543.
MLA	陈钧杰,et al."古尔班通古特沙漠腹地土壤水分动态".32.4(2009):537-543.