Conclusion
The main findings were as follows: grazing had an effect on seasonal
differences of vegetation diversity in arid areas; under higher grazing
pressure, vegetation was more sensitive to the difference of
precipitation in rainy season. Under low grazing pressure, the
vegetation was more stable in response to precipitation changes in the
rainy season. Precipitation in rainy season is a more important climatic
factor affecting vegetation diversity in arid and semi-arid regions.
Vegetation is more sensitive and vulnerable to grazing disturbance under
warm-dry climate model. The stability (or resilience) of vegetation in
response to grazing disturbances is higher in cold and wet climate
patterns. This study explored the mechanism of the dual effects of
grazing and climate factors on vegetation diversity from the perspective
of plant community stability, which provided some new insights for the
study of vegetation change in arid and semi-arid areas, and also
provided valuable evidence for the study of plant community stability.
It is important to note that these differences can also be caused by
other geographical factors, such as topography, seed banks, and chance
events. Therefore, more field investigation and research are needed for
verification.