| 塔里木河下游表层土壤盐分空间变异和格局分析 |
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| 引用本文： | 杨红梅,徐海量,樊自立,李吉玫,牛俊勇,张青青.塔里木河下游表层土壤盐分空间变异和格局分析[J].中国沙漠,2010,30(3):564-570. |
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| 作者姓名： | 杨红梅 徐海量 樊自立 李吉玫 牛俊勇 张青青 |
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| 作者单位： | 1. 中国科学院,新疆生态与地理研究所,新疆,乌鲁木齐,830011;中国科学院,研究生院,北京,100049
2. 中国科学院,新疆生态与地理研究所,新疆,乌鲁木齐,830011 |
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| 摘 要： | 土壤盐化是造成塔里木河下游天然植被退化的主要因素之一,应用地统计学方法,分析了塔里木河下游表层土壤盐分的空间异质性特征。结果表明,研究区土壤含盐量普遍较高,表层土壤盐分呈现强变异性和具有较强的空间自相关格局,主要受结构性因子影响。空间插值结果表明,表层土壤盐分整体上呈现出条带状的分布格局,局部地区表现出斑块状的空间变异特征。从河流纵向看,表层土壤盐分"两头高,中间低";从河流横向看,离河道越远,盐分越低,地下水埋深逐渐加深,物种数和植被盖度分别表现出与之相应的递减趋势。
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| 关 键 词： | 土壤盐分 空间变异 地统计学 Kriging插值 塔里木河下游 |
| 收稿时间： | 2009-01-25; |
Spatial Variability and Pattern of Surface Soil Salinity in the Lower Reaches of the Tarim River |
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| YANG Hong-mei,XU Hai-liang,FAN Zi-li,LI Ji-mei,NIU Jun-yong,ZHANG Qing-qing.Spatial Variability and Pattern of Surface Soil Salinity in the Lower Reaches of the Tarim River[J].Journal of Desert Research,2010,30(3):564-570. |
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| Authors: | YANG Hong-mei XU Hai-liang FAN Zi-li LI Ji-mei NIU Jun-yong ZHANG Qing-qing |
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| Institution: | YANG Hong-mei1,2,XU Hai-liang1,FAN Zi-li1,LI Ji-mei1,NIU Jun-yong1,ZHANG Qing-qing1,2(1.Xinjiang Institute of Ecology , Geography Research,Chinese Academy of Sciences,Urumqi 830011,China,{2.Graduate} University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Soil salinization was one of the main factors that caused the natural vegetation degradation in the lower reaches of the Tarim River.The study on spatial variability of soil salinity in the lower reaches of the Tarim River was carried out for providing the important information for the restoration and rebuilding of the degraded vegetation.Based on geostatistics method,spatial heterogeneity pattern of salinity in surface soil was studied in this paper.The result showed that the salt content in study area was... |
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| Keywords: | soil salinity spatial variability geostatistics Kriging the lower reaches of the Tarim River |
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