青藏高原高寒草甸光合特征研究简述

Brief Reviews of Study on the Photosynthetic Properties of Alpine Meadows on the Tibetan Plateau

青藏高原分布面积较广的高寒草甸是全球变化研究的热点地区之一,而植物光合固碳特征一直都是全球变化研究所关注的重要课题。简述了近年来青藏高原高寒草甸光合特征研究的进展和不足,并对将来的研究重点进行了展望。主要包括高寒草甸植物叶片光合对高寒生境的适应,影响因子分析,群落植被光合特征,植物生产力与碳库等。有关这一独特地域单元植物光合固碳特征研究的大量开展,必将进一步促进人们对该地区优质牧草资源的合理开发利用。

The alpine meadows area, the major part of the Tibetan Plateau, has been a hotspot of the world in study the global climate change, and the CO2 fixation of plant photosynthesis is always the key issue in the projects related to global climate change. The progresses and disadvantages in study the photosynthetic properties of alpine meadows on the Tibetan Plateau in recent years were briefly discussed. And the keystones of the future researches were predicted, which mainly included the acclimation of plant leaf photosynthesis to the alpine environments and the analysis of the influencing factors, the photosynthetic properties of plant community, as well as the plant productivity and carbon pool of alpine meadows. More works on CO2 fixation of alpine plants accomplished in this special regional area would have to further promote the rational exploitation and utilization of the local quality forage grass resources.