在土壤解冻期间开始休牧可改善高寒草原植物群落的种间关系和稳定性。
Initiation of rest-grazing during soil thawing improves interspecific relationships and stability of plant communities on alpine grassland.
作者信息
Ma Kaikai, Hou Qingqing, Xu Changlin, Chen Yanzhu, Yang Hang, Xu Jingjing, Yu Xiaojun
机构信息
College of Grassland Science, Key Laboratory of Grassland Ecosystem (Ministry of Education), Gansu Agricultural University, Lanzhou, China.
Department of Forestry Administration of Gansu Province, Gansu Forestry Technology Promotion Station, Lanzhou, China.
出版信息
Front Plant Sci. 2024 Aug 6;15:1426626. doi: 10.3389/fpls.2024.1426626. eCollection 2024.
INTRODUCTION
Grazing management is essential to maintain the stability of grassland ecosystems.
METHODS
To determine the optimal rest-grazing period of alpine meadow, five rest-grazing periods were set based on soil thawing and plant re-greening in this study. The niche, interspecific relationships, and stability of plant communities at different rest-grazing periods were investigated.
RESULTS
Rest-grazing during soil thawing resulted in a small niche width and niche overlap of plants, overall positive interspecific associations, and a high stability of plant communities. Delayed rest-grazing time to plant re-greening resulted in a large niche width and niche overlap of plants, overall negative interspecific associations, and a low stability of plant communities.
DISCUSSION
Rest-grazing in alpine meadows should begin as soon as possible to promote healthy and sustainable utilization of grasslands.
引言
放牧管理对于维持草地生态系统的稳定性至关重要。
方法
为确定高寒草甸的最佳休牧期，本研究基于土壤解冻和植物返青设置了五个休牧期。调查了不同休牧期植物群落的生态位、种间关系和稳定性。
结果
土壤解冻期休牧导致植物生态位宽度和生态位重叠较小，种间关联总体为正，植物群落稳定性高。休牧时间推迟至植物返青期导致植物生态位宽度和生态位重叠较大，种间关联总体为负，植物群落稳定性低。
讨论
高寒草甸应尽早开始休牧，以促进草地的健康可持续利用。
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