中国草原生态化学计量学研究进展

中国草原生态系统是世界草原生态系统的极重要组成部分之一,生态化学计量学研究有助于从研究生命物质不同结果层次中的元素循环、平衡等角度阐明中国草原生态系统运行机制,是中国草原生态系统研究的重要内容。为增进对中国草原生态化学计量学的理解,本文综述了近几年来中国草原生态化学计量的最新研究进展,指出中国草原生态化学计量的研究主要集中在内蒙古高原和青藏高原,并按植物生长季节(物候节律)、年际演替、空间变异和对全球变化响应等角度,试图揭示中国草原植物C,N和P化学元素其可能存在的内在机理、传递与调节机制及驱动因子,提出中国草原生态化学计量学研究中存在的问题以及今后拟加强研究的重点。

Research Advances in Stoichiometry of Grassland in China

Grassland ecosystem in China is one of the extremely important parts of the world's grassland ecosystem. Ecological stoichiometry may help to understand different result levels of elements cycling and balance in living matter to expound China's grassland ecosystems running mechanism, which is an important part of the study of grassland ecosystem in China. To enhance the understanding of Chinese grassland ecological stoichiometry, the recent studies on the stoichiometry of grassland was reviewed here. Most studies were conducted in Inner Mongolia and Tibetan Plateau. According to the plant growth season(phenological phase), interannual succession, the variation of space and the response of global change, the internal mechanism of plant C, N and P elements, nutritional diffusion and adjustment, and driving factors were revealed. Finally the existing problems of the grassland ecological stoichiometry in China and the prospect of research contents in the future were put forward.