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Study on Spatial Variability of Soil Water and Salinity in Hetao District in Inner Mongolia, China

Author: KouZuo
Tutor: LiuPuXing
School: Northwest Normal University
Course: Physical Geography
Keywords: Hetao Soil Water and Salt Spatial variability Geostatistics
CLC: S153
Type: Master's thesis
Year: 2008
Downloads: 46
Quote: 0
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The oasis the arid area unique ecological landscape, is one of the arid area of ??human production and life space. In arid areas, water is the oasis of the basic conditions for the formation and development, the oasis agricultural production blood. Oasis agriculture must rely on irrigation, irrigation unreasonable can cause wasting water shortages and soil salinization, soil salinization is the main problem of land degradation and threat to the sustainable development of oasis agriculture eventually led to the oasis ecological environment The deterioration. Therefore, the spatial variability on the oasis soil water salt content, provide some scientific significance for the sustainable development of the arid region. Hetao irrigation area is located in the Inland Northwest, dry climate, scarce precipitation, soil parent material salinity, high water table, irrigation development process, resulting in a more serious soil salinization problem of soil salinization a typical area of ??development, agricultural production mainly rely on irrigation, irrigation agriculture. In recent years, due to the development of irrigation, irrigation Soil Water and Salt great changes, Soil Water and Salt Variation of research in the area to provide a scientific basis for the sustainable development of the irrigation district. In this paper, the Hetao four counties soil sampling, through experiments on soil water content, salt content, redox reaction potential, pH, mechanical composition analysis. This article is divided into five parts of the study area soil water and salt distribution and spatial heterogeneity were studied. The first part discusses the research background as well as domestic and foreign research progress on soil salt, and describes the basic theory and geostatistics. The second section describes the the Hetao profile and this sampling method. The third part of the five samples of soil water content, salt content, redox reaction potential, pH value, the mechanical components were analyzed and compared and found its regularity. Part IV geostatistics soil water and salt on spatial patterns of five samples of the study area were analyzed and compared, and the use of Kriging interpolation method Urad Front Banner of Inner Mongolia Hetao Irrigation District in the East and the West and Dengkou oasis The spatial distribution pattern of soil water and salt are discussed. Part V summarizes the main conclusions of the paper, and paper inadequacies summarized, and hope that future work can be further improved.

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CLC: > Agricultural Sciences > Agriculture as the foundation of science > Soil > Soil chemistry, soil physical and chemical
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