May 18, 2024

Soil moisture analyzer to analyze the spatial variation of vegetation cover

Soil moisture has a strong spatial autocorrelation and the scale of vegetation coverage has a moderate spatial autocorrelation. Soil Moisture Meter Study Findings Generally speaking, surface soil moisture and vegetation coverage in the alpine grassland of the Qinghai-Tibetan Plateau have a good structural space in the permafrost region. The spatial variability of the proportion of the spatial variability of soil moisture in each layer is small, indicating that soil water does not exist in a smaller spatial pattern and small-scale soil processes can be ignored.

The spatial variation was randomly sampled at 34.2% in vegetation cover, and the total proportion of space was mainly less than 10 meters. In this study, it is recommended to increase the sampling density while taking into account the differences in soil properties and further improve the spatial pattern of vegetation cover integrity results. The soil moisture meter can be used to determine the spatial distances of soil moisture and vegetation characteristics variables, the largest in the changes, spatial autocorrelation, and changes in correlation.

The size of the range represents the measure of spatial heterogeneity. In the research of soil moisture meter, the soil moisture heterogeneity scale is different in different soil layers, and the range is about 90~190m, which indicates that the ecological process that affects soil moisture plays a role in different scales. The maximum soil moisture variation range is 0. 190.5m for 0~5cm, followed by the soil moisture content of 40~50cm, 131.8m, and the variation of vegetation coverage is 60.3m.

In addition, the variable range can reflect the spatial range of soil moisture. Therefore, it is instructive to change the validity of the soil moisture meter sampling process. For example, spatial independent statistical data is used to establish independent data or spatial distribution of soil moisture distribution. In general, changing the sampling distance will have no effect on the delamination of soil moisture meters.

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