| 摘要: |
| 【目的】由于所在环境和气候变化背景的差异，所以导致了水盐空间变异存在很大差异，在此背景下分析艾比湖地区水盐空间变异，有助于更加合理的了解土壤水盐一体化规律。【方法】本文以艾比湖为中心把艾比湖区域分为3个靶区：绿洲、荒漠、湖区，运用统计学和地统计学方法，分析3个区域的土壤水盐空间变异特征。【结果】研究表明：绿洲、荒漠、湖区这3个区域的土壤表层含盐量大小依次为：荒漠、绿洲、湖区，而含水量却相反；绿洲、荒漠、湖区的土壤含盐量在10-20cm及20-40cm均显示高度相关，相关系数分别为0.913，0.966，0.941。绿洲区域的不同土壤层的土壤含盐量与含水量伴随空间距离的增加表现出相似的Moran′s I系数变化趋势。【结论】本文初步了解了艾比湖地区不同环境背景下秋季的土壤水盐空间分布特征，为艾比湖地区农作物灌溉管理及土壤盐渍化治理提供了科学依据。 |
| 关键词: 艾比湖地区;水盐特征;空间变异;主控因子 |
| DOI： |
| 分类号:K903 |
| 基金项目: |
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| Analysis of spatial variability and main control factors of soil water and salt in arid areas |
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zhang liang
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Shaanxi Ｒadio ＆ TV University
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| Abstract: |
| Abstract:【Background】The spatial variation of water salinity is very different because of the differences in the environment and climate change background. 【Objective】In this context, analyzing the spatial variation of water salinity in the Ebinur Lake region can help to understand the soil water salinity integration pattern more reasonably. 【Method】In this paper, we divide the Ebinur Lake region into three target areas: oasis, desert and lake area, and analyze the spatial variability of soil water and salt in the three areas by using statistical and geostatistical methods. 【Result】The study showed that the soil salinity in the surface layer of the oasis, desert and lake areas was in the order of desert, oasis, lake area, while the water content was the opposite; the soil salinity in the oasis, desert and lake areas showed high correlation in 10-20 cm and 20-40 cm, with correlation coefficients of 0.913, 0.966 and 0.941, respectively. The soil salinity and water content of different soil layers in the oasis region showed similar trends of Moran's I coefficient with increasing spatial distance. 【Conclusion】This paper provides a preliminary understanding of the spatial distribution characteristics of soil water and salinity in autumn under different environmental backgrounds in the Ebinur Lake area, which provides a scientific basis for crop irrigation management and soil salinity management in the Ebinur Lake area.
Keywords: Ebinur Lake region; water and salt characteristics; spatial variability; main control factors |
| Key words: Under different environmental background; water and salt characteristics; spatial variation |
