荒漠草原土壤细菌群落对放牧强度变化的响应
Responses of soil bacterial communities to grazing regulation in desert steppe
[目的]由于经济发展模式和历史沿革造成的的粗犷式放牧导致我国北方地区草原生态问题突出,且尚未得到彻底解决。土壤微生物是地下生态系统最重要的结构和功能组份,其群落结构和多样性可以反映区域生态系统稳定性和土壤质量情况。为了明确不同放牧强度对土壤理化性质与细菌群落的影响。[方法]在内蒙古自治区荒漠草原开展放牧强度调控试验,设置了封育对照组、轻度放牧、中度放牧和重度放牧 4 个放牧强度。采用野外调查和 16S rRNA测序的研究方法比较分析不同放牧强度下…查看全部>>
[Objective]Due to the characteristic social economy and historical culture,the rough grazing has led to prominent grassland ecological problems in northern China,which have not been completely solved.Soil microorganisms are the most important structural and functional components of underground ecosystems,its community structure and diversity could reflect regional ecosystem stability and soil quality.In order to clarify the effects of different grazing inten…查看全部>>
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