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Position: Home > Articles > The Present Research Hotspots of Grassland Ecosystem under the Background of Climate Change Chinese Journal of Grassland 2013,35 (5) 124-132

气候变化背景下草原生态系统研究热点探讨

作  者:
丁勇;侯向阳;吴新宏;Leonid Ubugunov;任卫波;萨茹拉;孙小龙;刘朋涛
单  位:
中国农业科学院草原研究所/中国农业科学院欧亚温带草原研究中心;俄罗斯科学院西伯利亚分院普通与实验生物学研究所;内蒙古自治区生态与农业气象中心
关键词:
气候变化;人类活动;草原生态系统;响应和适应;研究热点
摘  要:
回顾了近年来关于气候变化与人类活动对草原生态系统的影响与系统响应及适应的研究前沿,并从自然系统维度指出,应该重视气候变化下草原生态系统,尤其是水分胁迫对生态系统的影响及植物生产层适应机制的研究,这将有助于破解草原退化的本质与趋势,以挖掘其适应气候变化的潜能;从人类干扰与管理的维度指出,研究人类活动与气候变化两大主要因素共同作用对生态系统的影响,是最符合现实状态的研究,在一个较短的时期内,人类无法阻止和控制气候变化,放牧利用作为主要人类活动是一高度人为可控的管理手段,通过建立放牧制度、放牧强度和放牧时间的多维调控网络,将承担起草原应对气候变化、促进退化草原恢复的重要责任。最后,将以上主要观点进行归纳,提出气候变化背景下草原生态系统研究的5个热点方向及需要突破的相关问题。
译  名:
The Present Research Hotspots of Grassland Ecosystem under the Background of Climate Change
作  者:
DING Yong;HOU Xiang-yang;WU Xin-hong;Leonid Ubugunov;REN Wei-bo;Sarula;SUN Xiao-long;LIU Peng-tao;Grassland Research Institute,Chinese Academy of Agricultural Sciences/Eurasian Temperate Grassland Research Center of Chinese Academy of Agriculture Sciences;Institute of General and Experimental Biology;Ecology and Agrometeorology Center of Inner Mongolia Autonomous Region;
关键词:
Climate change;;Human activity;;Grassland ecosystem;;Response and adaptation;;Research hotspot
摘  要:
Grassland is the typical ecological system which is the most vulnerable to climate change and has irreplaceable ecological productive functions and status.The research hotspots in recent years about the effect of climate change and human activities on the grassland ecosystem and the system's response and adaptation were reviewed.From the dimensions of natural system,the importance should be attached to the grassland ecosystem under climate change,especially,the effects of water stress on ecological system and the adaptive mechanism of plant's production layer,this will be beneficial to crack the essence and trends of grassland degradation,and to explore the potential to adapt climate change.From the dimensions of human interference and management,the research on the effects of human activities and climate change which are the two major factors influenced the ecosystem is the most conform research to the present situation.Human can not prevent and control the climate change in a short period of time,grazing as a main human activity is manageable.Finally,5hot fields and some issues of the grassland ecosystem in the context of the climate change based on the above main viewpoints were proposed.

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