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从第三极到北极: 多年冻土碳循环研究进展
张凤1(), 母梅1(), 范成彦1, 贾麟1, 牟翠翠1,2,3(), 赵倩1, 李丽丽4, 彭小清1, 张廷军1,3
Studies of permafrost carbon cycle in the Third Polar and Arctic regions
Feng ZHANG1(), Mei MU1(), Chengyan FAN1, Lin JIA1, Cuicui MU1,2,3(), Qian ZHAO1, Lili LI4, Xiaoqing PENG1, Tingjun ZHANG1,3

图1. 第三极多年冻土对生态系统呼吸作用影响示意17
蓝色和绿色箭头表示多年冻土对土壤温度和土壤含水量的影响, 而渐变的绿色箭头表示活动层厚度加深对多年冻土退化的影响。黄色箭头表示土壤温度对生态系统呼吸的正面影响, 暗绿色箭头表示土壤含水量对生态系统呼吸的负面影响, 其中箭头的粗细表示影响的大小

Fig.1. A schematic diagram of effects of permafrost on ecosystem respirations on the Third Pole regions17
The blue and green arrows showed the effects of permafrost on soil temperature and moisture, and the faded arrows showed the effects of permafrost decreased along with deepening of active layer. The yellow and dark green arrows showed the positive effects of soil temperature and negative effects of moisture on ecosystem respirations, and the larger arrows indicated stronger effects