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There are many researches on the spatial variability of soil nutrients, such as the research on the variation of soil organic matter, total nitrogen, etc., nugget effect and related degree, and the soil nutrient tester on soil nutrient content in a variety of landforms or in a certain area. The study of soil nutrient differentiation and the study of coefficient of variation, etc., and the study of the spatial heterogeneity of soil nutrients in sub-small physical geography units were also involved. Some of them were limited to a certain county level, and some were studies in a certain province or region. , but the data source is 1:500,000 or less.
The soil nutrient fastness tester was used to analyze the correlation of soil nutrient contents within 0~5cm, 5~20cm, and 20~40cm soil layers in different sections of the northern slope of the Tianshan Mountains, and there were certain rules in the changes of the content of soil indicators. Each nutrient index There is a certain degree of independence in the content change. The reason may be related to the soil properties of the section. The soil nutrient fastness tester found that vegetation on different soil types had great differences in coverage and soil use patterns, so the correlation between soil nutrient indicators was relatively small.
There are many gravels in the soil, and there are few vegetation types. The coverage of vegetation is low. The human activities are mainly based on tree breeding and tourism. The soil nutrient content is low through the analysis of soil nutrient fastness meter. Therefore, the future soil conservation and utilization should be Mainly to maintain the original appearance of habitats, to avoid habitat degradation after human disturbance. There are many types of vegetation, high vegetation coverage, high elevation, and fertile soil. Most of the areas are summer pastures. Human activities are mainly grazing. To prevent excessive grazing and random soil disturbance in the region to avoid soil erosion .
Soil nutrients are an important component of soil, an important indicator of soil quality and an important indicator of soil fertility. In arid desert areas, soil nutrient content measured by soil nutrient fastness meter directly affects the level of soil quality, and has a direct impact on the ecological evolution of desertification areas. Therefore, soil nutrient has become one of the research hotspots in soil science, environmental chemistry and geochemistry.