Responses of two dominated desert shrubs to soil drought under doubled CO_2 condition
CO_2浓度倍增条件下土壤干旱对两种沙生灌木碳氮含量及其适应性的影响

CO_2 concentration in the atmosphere is expected to increase continuously in the future and would be doubled around the middle part of the 21~(th) century. CO_2 enrichment may take advantage of pant growth, but water stress is a common stress for plant growth and productivity. At present, only a few studies on the combined effects of CO_2 enrichment and drought on plant eco-physiology have been done. This experiment was conducted to investigate that the responses of two dominant desert shrubs (Caragana inte...