Assessment of grassland habitats on potential occurrence of grasshoppers in the region around qinghai lake 環青海湖地區草地生境的蝗蟲潛在發生可能性評價
To a certain extent , alpine grassland habitat of eastern qilian mountains was fragmented by frequent disturbance ( including grazing , reclamation , etc ) , which resulted in an increase of the diversity and species replacement rate was rapid in the condition of moderate soil moist and sunlight time 放牧干擾(放牧、人為不合理開發)引起生境的逐漸破碎化,使樣方內微生境或資源異質性減小,樣方間異質性增大,土壤濕度和日照時間適中時物種替代速率較快,從而導致多樣性增加。