Effects of elevated atmospheric CO concentration and increased temperature on Betula albo-sinensis rhizospheric microbe Effects of elevated temperature and drought stress on photosynthesis of Lycium barbarum The effect of CO2 concentration and temperature on chlorophyll content of Quercus mongolica Fisch. under different nitrogen levels Effects of combined elevated temperature and drought stress on anti-oxidative enzyme activities and reactive oxygen species metabolism of Broussonetia papyrifera seedlings Effects of elevated temperature and CO2 concentration doubling on soil total soluble nitrogen in subalpine coniferous forest of western Sichuan, China Interactive effects of changing precipitation and elevated temperatures on plant biomass and its allocation of Stipa breviflora Responses of soil microbes and enzyme of compound community to elevated atmospheric CO2 concentration and temperature