The study of the relationship between soil moisture and vegetation in a certain area has important reference significance. The appearance of a soil moisture measuring instrument provides a convenient condition for this research. Today, we use a soil moisture measuring instrument to measure changes in soil moisture in the desert. The fixed-point measurement analysis aims to provide a theoretical basis for the cultivation of desert green vegetation. The study of soil moisture and its spatial heterogeneity not only has important reference value for understanding the relationship between vegetation and soil moisture, such as the renewal process, the effect of water on the root system, and the spatial pattern of plants, but also the vegetation construction and artificial use in arid sand areas. Ecological management of vegetation has important ecological significance. In order to understand and explore the ecological function and process of soil moisture reversal in the desertification process, the dynamic changes and spatial heterogeneity of soil moisture during the desertification reversal process in the southern margin of the Tengger Desert were studied. It provides a theoretical basis for artificially assisted restoration and management of sand-fixing vegetation in arid regions. The vulnerability and instability of desert ecosystems determine the status of soil moisture as an important ecological factor in the system. It has a direct or indirect relationship with most of the nature and processes of the system. Soil moisture determines the occurrence, development, and land productivity of the sand-fixing vegetation and the entire ecosystem. It is a key factor in the stability of the ecosystem, the structure, and function of the desertification area, and plays a decisive role in the water-heat balance of the entire ecosystem. Therefore, soil moisture has always been a research hotspot in arid regions. Due to the limitation of testing methods, it has also become one of the difficulties in arid ecological research. Geostatistical methods were introduced into the study of ecology and applied in the study of soil moisture in arid and semi-arid areas. Zhao Wenzhi's research on semi-arid Horqin sandy land showed that the establishment of artificial vegetation enhanced the heterogeneity of soil moisture in sandy land. . Ma Fengyun's research on the sand-fixing vegetation established in Shapotou in 1956 believed that the soil moisture in each layer of 0-200cm had obvious spatial variability, and the spatial heterogeneity of the autocorrelation part of soil moisture in each layer accounted for the heterogeneity of the total space. Very high level. Li Xinrong studied that the spatial heterogeneity of soil moisture content in 0-40 cm and 40-300 cm soil layers in Shapotou sand-fixing vegetation is also enhanced by the establishment of sand-fixing vegetation, but after nearly 50 years of vegetation evolution, spatial heterogeneity has gradually weakened. trend. In Gulangming Shazu, located on the southern edge of the Tengger Desert, the degree of spatial heterogeneity of soil moisture during desertification reversal is different from that of the above studies, but the research results are similar. Moreover, due to the selection of the desertification reversal process sequence, it was found that artificial vegetation construction first enhanced the spatial heterogeneity of soil moisture, but after the restoration of 25 years, the degree of heterogeneity appeared a decreasing trend. Among them, the heterogeneity caused by spatial autocorrelation, 0~20cm is the highest in the restoration of 5a plot, 20~40cm is the highest in 15a plot restoration, and it may be related to the artificial construction of low-density shrub vegetation (bud, 1650 strains). /hm2) related. In the 5a vegetation restoration area, the growth of the flower buds basically reached the highest level of production, and the shrub/Wau Island 0 effect was obvious; after 10 years, the buds had begun to decline, and the shrub/Wau Island 0 effect continued to decrease, and natural vegetation began to dominate. In addition, compared with the Other study areas mentioned above, the study area is geographically located in the western part of the country, with less precipitation (average 175 mm for many years). As a result, the soil is more arid; the construction of sand-fixing vegetation only used low-density artificial afforestation in the earlier period, and there was no Set up mechanical sand barriers, and vegetation restoration is mainly based on natural restoration. In the study area, relatively uniform shrubs and herbaceous vegetation were formed after the restoration of the enclosed area for 25 years, and the heterogeneity of soil moisture also decreased during the 25 years after the restoration. Shapotou artificial sand-fixing vegetation was originally built on a sand dune, which was relatively uniform and fixed by grass square sand barriers. Vegetation construction uses high-density plant species and the soil moisture heterogeneity weakens for a relatively long period. Extruded net bags are ventilate and attractive. They are not only protecting fruits or vegetables in fresh air circulation to reduce spoilage also can upgrade the value of commodities. 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