作物-土壤氮循环对大气CO2浓度和温度升高响应的研究进展

张锦源,李彦生,于镇华,谢志煌,刘俊杰,王光华,刘晓冰,吴俊江,Stephen J Herbert,金剑

Nitrogen Cycling in the Crop-Soil Continuum in Response to Elevated Atmospheric CO2 Concentration and Temperature -A Review

ZHANG JinYuan,LI YanSheng,YU ZhenHua,XIE ZhiHuang,LIU JunJie,WANG GuangHua,LIU XiaoBing,WU JunJiang,Stephen J HERBERT,JIN Jian

图1 大气CO2浓度升高与温度升高对作物-土壤氮循环的交互影响 图中实线箭头表示现有结果较为一致;虚线箭头表示现有研究结果不一致;CO2×T表示CO2浓度和温度互作,问号表示互作影响未知 Arrows with solid and dot line indicate consistent and inconsistent results from published data; CO2×T indicates the interaction between CO2 and temperature, question mark means the interaction is unknown 分别表示单独CO2浓度升高条件下的负效应和正效应 The downward and upward arrows mean negative and positive impacts by elevated CO2, respectively. 分别表示升温对CO2浓度升高效应的抑制和促进作用 The downward and upward box arrows mean inhibitive and promotive feedback of elevated temperature on the effect of elevated CO2. 表示作物氮吸收相关指标对CO2及温度升高的响应 Pink indicates the response of properties relevant to nitrogen uptake under elevated CO2 concentration and temperature. 表示作物氮浓度对CO2及温度升高的响应 Green indicates the response of crop nitrogen concentration to elevated CO2 concentration and temperature. 表示作物产量及氮分配对CO2及温度升高的响应 Purple indicates the response of crop yield and nitrogen allocation to elevated CO2 concentration and temperature. 表示土壤氮转化相关过程对CO2及温度升高的响应 Blue indicates the response of soil nitrogen transformation to elevated CO2 concentration and temperature T: Temperature; Photosyn: Photosynthesis; Bio.: Biomass; Transpi.: Transpiration; [N]: N concentration; Grain N alloca.: Grain N allocation; NG N alloca.: Underground N allocation; Root morpho.: Root morphology; Enzyme acti.: Enzyme activity; Immobili.: Immobilization; Minerali.: Mineralization; Nitri.: Nitrification; Denitri.: Denitrification

Fig. 1 Interaction between atmospheric CO2 concentration and temperature on crop-soil continuum nitrogen cycle