Xu L L, Zhang X Z, Shi P L, et al. Establishment of apparent quantum yield and maximum ecosystem assimilation on Tibetan Plateau alpine meadow ecosystem. Sciences in China Series D, 2005, 48: 141-147.
[2]
Ni J. Carbon storage in grasslands of China. Journal of Arid Environment, 2002, 50: 205-218.
Zhou H K, Zhao X Q, Tang Y H, et al. Alpine grassland degradation and its control in the source region of Yangtze and Yellow Rivers, China. Grassland Science, 2005, 51: 191-203.
Moline M A, Claustre H, Frazer T K, et al. Alteration of the food web along the Antarctic Peninsula in response to a regional warming trend. Global Change Biology, 2004, (10): 1973-1980.
[22]
Marchand F L, Mertens S, Kockelbergh F, et al, Performance of High Arctic tundra plants improved during but deteriorated after exposure to a simulated extreme temperature event. Global Change Biology, 2005, (11): 2078-2089.
Hickman K R, Hartnett D C. Grazing management effects on plant species diversity in tallgrass prairie. Journal of Range Management, 2004, 57(1): 58-65.
[31]
Buckeridge K M, Jefferies R L. Vegetation loss alters soil nitrogen dynamics in an Arctic salt marsh. Journal of Ecology 2007, 95(2): 283-293.