畜牧与饲料科学2025，Vol.46Issue(6)：37-44,8.DOI:10.12160/j.issn.1672-5190.2025.06.006
基于meta分析的放牧强度对中国温性草甸草原生态系统的影响
Effects of Grazing Intensity on Temperate Meadow Grassland Ecosystems in China Based on a Meta-analysis
摘要
Abstract
[Objective]To clarify the effects of grazing intensity on temperate meadow grassland ecosystems in China.[Methods]A meta-analysis was conducted by searching CNKI,VIP,Wanfang,and Web of Science databases from January 2000 to June 2025.The Chinese keyword combinations were"soil microorganisms or bacteria or fungi or actinomycetes","grazing intensity",and"temperate meadow grassland";the English keywords included"grazing or livestock or stocking rate","grazing capacity",and"temperate meadow grassland".Literature meeting the inclusion criteria was screened to examine the responses of plant communities,soil nutrients,and soil microorganisms in China's temperate meadow grasslands to grazing intensities.[Results]Compared with ungrazed plots,light grazing significantly decreased microbial biomass nitrogen content by 37.3%and significantly increased the light fraction organic carbon content by 26.2%.Moderate grazing significantly reduced aboveground biomass and microbial biomass nitrogen content by 100.3%and 41.8%,respectively.Under heavy grazing,aboveground biomass,soil organic carbon,and total nitrogen contents were significantly reduced by 122.2%,23.8%,and 26.7%,respectively.[Conclusion]The results indicate that heavy grazing significantly degrades ecosystem functions of temperate meadow grasslands in China and is detrimental to ecosystem sustainability.In contrast,light grazing is an appropriate intensity for maintaining grassland ecological functions.These findings provide a scientific basis for formulating grazing management strategies for temperate meadow grasslands,suggesting that reducing grazing intensity can achieve a balance between ecological conservation and livestock production.关键词
中国温性草甸草原/放牧强度/生态系统/meta分析Key words
temperate meadow grasslands in China/grazing intensity/ecosystems/meta-analysis分类
农业科技引用本文复制引用
郝东恺,金东艳,那亚,姜熔,刘昊,孙楠,崔岩峰,鲍青龙..基于meta分析的放牧强度对中国温性草甸草原生态系统的影响[J].畜牧与饲料科学,2025,46(6):37-44,8.基金项目
国家自然科学基金面上项目(42371127) （42371127）
内蒙古农业大学草学一流学科科研专项(YLXKZX-NND-010) （YLXKZX-NND-010）
中国农业科学院农业信息研究所公益性科研院所基本科研业务费专项资金(JBYW-AII-2024-18 （）
JBYW-AII-2025-09). （）
