The elevated CO2 could change the global carbon balance, it is essential to study the response of vegetation to the elevated CO2 concentration.
CO2排放量的增加将改变全球生态系统碳平衡。植物对CO2浓度增加的响应是个重要研究课题。
The effects of elevated CO2 concentration on dry matter allocation and nutrient contents of red birch seedlings were studied under two planting densities in controlled environment Chambers.
采用控制环境生长室研究了2个密度水平下CO2浓度升高对红桦幼苗干物质分配与营养的影响，并分析了红桦干物质分配与养分浓度的关系。
The study showed that under the double CO2 concentration, sufficient nitrogen, and no other condition stress, the ratio between root and crown can not be affected by elevated CO2 concentration.
对红皮云杉与白扦研究表明，在CO_2浓度倍增条件下，氮素营养供应充足，其他条件不受到限制时，植物的根冠比不受到大气CO_2浓度升高的影响。
Plants growing in enhanced UV-B radiation or elevated CO2 concentration may change with their physiological, morphological structure and the process of growth and development directly or indirectly.
增强的UV - B辐射和CO_2浓度升高都会直接或间接影响植物的生理、形态结构和生长发育过程。
Elevated atmospheric CO2 concentration significantly increase crops biomass, which will input more carbon into soil to affect soil carbon stability and accumulation.
大气CO2浓度升高显著增加作物生物量，从而使进入土壤的有机碳增加，这势必会影响土壤碳的稳定和积累。
The main impetus for climate change is the elevated concentration of CO2 in the atmosphere.
气候变化的主要动力是在空气里的被提升CO2的集中。
The main impetus for climate change is the elevated concentration of CO2 in the atmosphere.
气候变化的主要动力是在空气里的被提升CO2的集中。
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