关键词 CO2浓度升高；根系；根际；根系分 泌物；土壤呼吸； C、 N 循环 [gap=23723]Key words Elevated CO2, Roots, Rhizosphere, Root exudates, Soil respiration, C and N cycling ..
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大气co2浓度升高 atmospheric co rise ; atmospheric co enrichment ; elevation of atmospheric co concentration
CO2和O3浓度升高 elevated CO2 and O3
co2浓度和温度升高 co concentration and temperature rise ; co concentration and temperature increasing
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