Response of the annual biomass production of a typical steppe plant community to precipitation fluctuations

文献类型： 外文期刊

第一作者： Wang, Zhen

作者： Wang, Zhen;Ding, Yong;Hou, Xiangyang;Sarula;Li, Xiliang;Chen, Haijun;Yin, Yanting;Hu, Jing;Zhang, Qing;Liu, Zhongling;Xin, Xiaoping

作者机构：

关键词： ANPP;annuals and biennials;perennial forbs;perennial grass;shrubs and semi-shrubs

期刊名称：RANGELAND JOURNAL （ 影响因子：1.09； 五年影响因子：1.51 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Understanding the relationship between the aboveground net primary production (ANPP) and annual precipitation in arid and semiarid grasslands is crucial for assessing the effects of climate change on grassland ecosystems. The temporal pattern of ANPP, based on long-term data on a semiarid ecosystem in Inner Mongolia, was investigated. The biomass of perennial grasses, perennial forbs and Stipa grandis P. Smirn., showed a positive relationship with annual precipitation. The amount of annual precipitation also changed the annual biomass of 13 other dominant species and consequently the ANPP. The coefficient of variation of the ANPP of the plant community was lower than the coefficient of variation of annual precipitation. Irrespective of the strong inter-annual variation in annual precipitation, the positive relationship found between ANPP and annual precipitation suggests the dependence of ANPP upon hydrological variations in typical steppe. Our findings highlight the importance of dominant perennial species and functional groups in mediating the responses of ANPP to annual precipitation in the typical steppe in northern China.

分类号： S8

  • 相关文献

[1]Responses of Plant Community and Soil Properties to Inter-Annual Precipitation Variability and Grazing Durations in a Desert Steppe in Inner Mongolia. Wang Zhen,Yun Xiang-jun,Wang Yun-feng,Hou Xiang-yang,Wei Zhi-jun,Yang Xia,Schellenberg, Michael P.. 2014

[2]The response of grassland productivity, soil carbon content and soil respiration rates to different grazing regimes in a desert steppe in northern China. Hou, Xiangyang,Wang, Zhen,Ji, Lei,Yun, Xiangjun,Michael, Schellenberg P..

[3]Hydrologic thresholds and changes in ANPP of artificial sand-fixing vegetation in a desert-oasis ecotone in Northwest China. Li, Fang,Li, Fang,Zhao, Wenzhi.

作者其他论文 更多>>

微信小程序