The interaction between the spatial structure of soil moisture and ecological processes is the basic reason for the development of the community. During the process of grassland degradation, the foul-smelling community of Gansu changes the spatial structure of soil moisture through its biological characteristics, and also through its special biological characteristics. Adapt to this long-term lack of soil moisture habitat. According to the study of soil moisture measuring instrument, the spatial heterogeneity of the distribution of lower rhizomes in the foul grassland of Gansu Province was found, which resulted in the spatial heterogeneity of soil water spatial distribution under different rhizome density.
Under conditions of water stress, the greater the density of rhizomes in Gansu, the more soil moisture absorption and utilization, and in the area where the density of rhizomes is relatively small, although there is a physiological integration of Gansu foul grass on water, Due to its small density, the use of soil moisture is still relatively small. It is not uncommon for research methods to study the influence factors of spatial distribution pattern of soil moisture mainly through classical linear regression models.
The spatial concentration characteristics of soil moisture measured by the soil moisture measuring instrument in the 10-20cm layer were more obvious than those in the 0-10cm and 20-30cm soil layers, indicating that the soil moisture in the 10-20cm soil layer has a more spatially dependent feature, and its space Diffusion capacity is also stronger. The spatial structure of soil moisture is not only affected by the biological characteristics of the foul grass in Gansu, but also the community characteristics and soil moisture affect each other.
The formation of a certain shadowing effect on the surface of the soil, locally lowering the surface temperature, and thus reducing the evaporation of surface soil moisture, so the soil moisture analyzer analysis in the 0 ~ 10cm soil layer, vegetation height has a positive and significant effect on soil moisture. In the 10-20 cm soil layer, the degree of absorption and utilization of soil moisture is stronger, which results in a highly significant negative correlation between soil moisture in the 10-20 cm soil layer and the foul grass cover in Gansu.
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