Continuous field experiment was carried out on alpine meadow along different elevation gradient in Qilian Mountains during the growing season of 2004 using a soil respiration chamber(Li-6400-09) connected to a portable photosynthesis system(Li-6400).

),which is covered with alpine meadow,located in the middle reaches of the upper Heihe River,one of the long inland river in Northwest China.

The results showed that in 0-10 cm soil layer,the biomass,length density,surface area density,and volume density of living fine roots were all decreased in the order of evergreen broadleaf forest<dwarf forest<coniferous forest<alpine meadows,with significant differences(P<0.

CO2 efflux in subalpine meadows under different grazing management in Shangrila,Yunnan;

Spatial patterns and habitat interpretation of the subalpine meadow plant species on Mt. Xiaowutai;

Community pattern analysis of a subalpine meadow community based on DCA in Yunding Mountain,Shanxi;

To discuss the pertinence between the vegetation indexes and the aboveground biomass of sub-alpine meadow of Zoige(Ruoergai) County and serve better for the ecological improvement,the statistical analysis was conducted between seven vegetation indexes(NDVI,RVI,DVI,SAVI,MSAVI,PVI and GVI) of Zoige area in July 2008 and the field survey data.

The mountain tall grass meadow is the cream of Xinjiang natural grassland which is used mostly for mowing in production.

The mountain tall grass meadow is cream of Xinjiang natural grassland which is used mostly mowing in production.

Effects of over-grazing on vegetation degradation of the Kobresia pygmaea meadow and determination of degenerative index in the Naqu Prefecture of Tibet;