Grassland ecosystem responses to climate change and human activities within the Three-River Headwaters region of China.

ABSTRACT: The Three-River Headwaters region (TRHR) of China is an important part of the Qinghai-Tibetan Plateau. Although the TRHR is rich in grassland resources, the ecosystem of this area is extremely fragile. Natural and artificial interference have been key to the development of grassland ecosystem spatiotemporal heterogeneity, although the intensity and mode of their influence on ecological processes varies depending on scale; analyses in this area are therefore also scale-dependent. We use multi-scale nested data to analyze the mechanisms underlying the influence of climate change and human activities on grassland net primary productivity (NPP) by applying a multi-level modeling approach. The results of this study show that: (1) The annual grassland NPP of the TRHR has risen in a wavelike patt

SUBMITTER: Han Z 

PROVIDER: S-EPMC5998084 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature