利用GIS辅助分析草原放牧活动对蝗虫群落的影响

不合理的草原放牧活动会使草原退化，沙化，导致蝗虫灾害，使畜牧业遭受损失。本文在草原放牧活动和蝗虫群落之间的关系理论和与环境科学，生物学，畜牧科学等研究成果上，探讨用地理信息系统动态分析草原放牧活动对蝗虫群落的影响，不仅作到快速，准确地预测蝗虫灾害的发生，还可以为调整放牧强度，方式和放牧草场提供依据，使畜牧活动达到最佳经济，环境效益。

Analyzing the influence of grazing on the grasshopper community in steppe using GIS

Unsuitable grazing may make steppe degenerate,resulting in grasshopper disaster,and the loss of stockbreeding.We discussed the main factors especially the grazing on the grasshopper community in steppe by the numbers,using suitability models for Analyzing the influence of grazing on the grasshopper community in steppe.On the base of these theories,we converted the models into algorithm and built an Application Geographic Information System to analyzing the influence of grazing on the grasshopper community in steppe,and provide information for preestimating grasshopper disaster and guiding the stockbreeding development.