Using positive interaction ecology to explain grassland degradation induced by overgrazing

Overgrazing of grassland ecosystems in the temperate steppe region of China has resulted in serious degradation and a distinct vegetation pattern. Grassland degradation is a major concern to ecologists and has been the focus of much recent research. A lot of work has been done on grassland degradation in grassland communities but few studies have explored the mechanisms of degradation from an ecological theory perspective. Positive interaction ecology theory has become one of the major themes in ecology, particularly the Stress Gradient Hypothesis. In the following study we attempt to explain the mechanisms of grassland degradation using positive interaction ecology and provide a new perspective for recognizing grassland degradation.