放牧强度对内蒙古草原土壤微生物多样性和生态系统多功能性影响的Meta分析

Meta-analysis of effect of grazing intensity on soilmicrobial diversity and ecosystem multifunctionalityof grassland ecosystems in Inner Mongolia

摘要:

【目的】 探究放牧强度对内蒙古草原土壤微生物多样性和单个生态系统功能指标的影响，综合评估生态系统多功能性（EMF）对放牧强度的响应。【方法】 本研究采用Meta 分析的方法，对29 篇内蒙古草原放牧强度对生态系统多功能性影响的文章进行整合分析。【结果】 细菌多样性比真菌多样性对放牧强度的响应更敏感，重度放牧显著降低细菌Shannon-Wiener 指数。中度和重度放牧显著降低内蒙古地区草地生态系统多功能性。真菌多样性在调节内蒙古地区草地生态系统多功能性中具有重要作用。【结论】 建议在内蒙古草原进行轻度放牧，以促进草地生态系统健康持续发展。

Abstract:

【Objective】 To investigate the effects of grazing intensity on soil microbial diversity and individualecosystem function indicators in Inner Mongolia grasslands，and to comprehensively assess the response of ecosystemmultifunctionality （EMF） to grazing intensity.【Method】 This study employed a Meta-analysis approach， integratingdata from 29 articles that examined the effects of grazing intensity on ecosystem multifunctionality in Inner Mongolia.【Result】 The findings indicate that bacterial diversity is more sensitive to grazing intensity compared to fungaldiversity， with severe grazing significantly reducing the Shannon-Wiener index of bacteria. Moderate and heavygrazing significantly decrease the multifunctionality of grassland ecosystems in the Inner Mongolia region. Fungal diversityplays a crucial role in regulating the multifunctionality of grassland ecosystems in Inner Mongolia.【Conclusion】 It is recommended to implement light grazing in Inner Mongolia grasslands to promote the healthy and sustainabledevelopment of grassland ecosystems.