Greenhouse gas exchange and comprehensive global warming potential under different wheat-maize rotation patterns The possible influence of future climate change on cotton production,and disease and insect pests in Hebei Province The combined effects of elevated CO2 and elevated temperature on proliferation of cyanophage PP A Preliminary Study of the Influence of Simulated Greenhouse Effect on a Kobresia humilis Meadow Some special functions of forest in environment THE FUTURE CLIMATE CHANGE AND ITS INFLUENCES TO FOREST IN HEILONGJIANG PROVINCE Effect of azolla on CH4 and N2O emissions in Fuzhou Plain paddy fields