干旱区生态环境知识资源中心(Arid): 塔里木河下游灌区春季土壤盐分空间变异特征以新疆第二师三十一团灌区为例

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	塔里木河下游灌区春季土壤盐分空间变异特征以新疆第二师三十一团灌区为例
其他题名	Spatial variation characteristics of soil salinity in the lower reaches of the Tarim River in spring A Case study on 31th regiment of Xinjiang Second Division
	丁邦新 1; 白云岗 2; 刘雪艳 1; 陈星星 2; 刘洪波 2; 肖军 2
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2020
卷号	38 期号:1 页码:209-216
中文摘要	应用地统计学的半方差分析和Kriging空间插值,以新疆第二师三十一团灌区为例,分析了塔里木河下游绿洲灌区不同深度土壤全盐及盐基离子的空间变异特征与分布规律。结果表明:研究区春季土壤总体呈碱性,各土层阴离子均以SO_4~(2-)为主,阳离子均以K~+和Na~+为主,灌区内根域层( 0~ 60 cm)土壤盐分、Ca~(2+)、Cl~-的半方差函数模型符合高斯模型,Mg~(2+)、K~+ +Na~+符合球状模型,深层( 60~ 100 cm)土壤盐分、HCO_3~- 、SO_4~(2-)符合指数模型,各变量空间自相关范围差异较大。盐分分布特征受人类活动和地势、水源的影响较大,根域层( 0 ~ 60 cm)土壤盐分含量呈现由西北部向东南部逐渐升高的趋势,变化范围在2.28~ 3.27 g·kg~(-1)之间,深层( 60 ~ 100 cm)土壤盐分含量呈现由西北部向东南部逐渐降低的趋势,变化范围在2.31~ 4.63 g·kg~(-1)之间。HCO_3~-在整体上与根域层( 0 ~ 60 cm)土壤盐分含量分布特征相同,其它各离子含量无明显变化规律。灌区内土壤盐分垂直分布的总趋势大致相同,根域层( 0 ~ 60 cm)土壤含盐量与深层( 60~ 100 cm)土壤含盐量差异不大,变化范围在2.28~ 4.63 g·kg~(-1)之间。
英文摘要	Soil salinization is one of the main factors restricting the development of agriculture in the lower reaches of the Tarim River. The spatial variability and distribution of total salt and base ions in different depths of the oasis irrigation area in the lower reaches of the Tarim River ( 31th regiment of Xinjiang Second Division) were analyzed by using Semi-Variogram and Kriging spatial interpolation of geostatistics. The results showed that the soil in the study area was alkaline in spring,and the anions in all soil layer were mainly SO_4~(2-),and the cations were mainly K~+ and Na~+. The semi-variance function model of soil salinity,Ca~(2+) and Cl~-,in the root zone ( 0~60 cm) of the soil profile in the region accords with the Gaussian model,The soil salinity in deep layer ( 60 ~ 100 cm) ,HCO_3~-, SO_4~(2-) conformed to the exponential model. Mg~(2+) and K~++Na~+ conformed to the spherical model. The spatial autocorrelation range of each variable was quite different. Salt distribution characteristics are greatly affected by human activities and topography and water sources. The soil salinity content in the root zoon layer soil gradually increased from northwest to southeast,and the range of variation was 2.28~3.27 g·kg~(-1). The salinity of deep soil gradually decreased from northwest to southeast,and the range of variation was 2.31 and 4.63 g·kg~(-1). The HCO_3~- had the same characteristics as that in the root zone layer,no obvious change in the content of other ions. The general trend of vertical distribution of soil salinity was approximately the same. There was no significant difference in soil salinity between root layer and deep layer. Mastering the degree of soil salinization is of great significance for the improvement and utilization of saline soil.
中文关键词	土壤盐分 ; 盐基离子 ; 空间变异 ; 塔里木河
英文关键词	GIS soil salinity base ion spatial variation GIS Tarim River
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6684675
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318450
作者单位	1.新疆农业大学草业与环境科学学院, 乌鲁木齐, 新疆 830052, 中国; 2.新疆水利水电科学研究院, 乌鲁木齐, 新疆 830049, 中国
推荐引用方式 GB/T 7714	丁邦新,白云岗,刘雪艳,等. 塔里木河下游灌区春季土壤盐分空间变异特征以新疆第二师三十一团灌区为例[J]. 新疆农业大学,2020,38(1):209-216.
APA	丁邦新,白云岗,刘雪艳,陈星星,刘洪波,&肖军.(2020).塔里木河下游灌区春季土壤盐分空间变异特征以新疆第二师三十一团灌区为例.干旱地区农业研究,38(1),209-216.
MLA	丁邦新,et al."塔里木河下游灌区春季土壤盐分空间变异特征以新疆第二师三十一团灌区为例".干旱地区农业研究 38.1(2020):209-216.