退化高寒草地生态恢复的研究进展

Research Progress on Ecological Restoration of Degraded Alpine Grassland

人类活动和全球气候变化的影响将导致青藏高原高寒草地部分地区的退化。本文对高寒草地退化影响的生物量、生物多样性、土壤肥力、草地固碳能力、草地面积及经济社会持续性发展等进行了阐述,分析了气候、超载过牧、植食性哺乳动物的危害及人类活动等对高寒草地退化的原因,确立了实施可持续发展模式。根据退化程度的不同采取补播、人工草地建植、施肥、围栏封育等草地生态恢复的措施,为高寒草地退化的恢复提供重要的参考依据。

As the results of global climate change and human activities, the alpine meadow degradation phenomenon is becoming more and more serious. In this paper, the biomass, biodiversity, soil fertility, carbon sequestration capacity of grassland, grassland area and sustainable economic and social development affected by the degradation of alpine grassland are described, and the reasons of climate, overgrazing, damage of herbivore mammals and human activities on the degradation of alpine grassland are analyzed, and the sustainable development model is established.Based on the degree of degradation, measures such as reseeding, artificial meadow planting, fertilization, enclosure and other meadow ecological restoration measures are taken to provide references for the restoration of degraded alpine meadow.