草地群落多样性和生态系统碳氮循环对氮输入的非线性响应及其机制
杨元合1,2,*(
), 张典业1, 魏斌1,2, 刘洋1,3, 冯雪徽1,2, 毛超1,4, 徐玮婕1,2, 贺美1, 王璐1,2, 郑志虎1,2, 王媛媛1, 陈蕾伊1, 彭云峰1
), 张典业1, 魏斌1,2, 刘洋1,3, 冯雪徽1,2, 毛超1,4, 徐玮婕1,2, 贺美1, 王璐1,2, 郑志虎1,2, 王媛媛1, 陈蕾伊1, 彭云峰1
Nonlinear responses of community diversity, carbon and nitrogen cycles of grassland ecosystems to external nitrogen input
YANG Yuan-He1,2,*(), ZHANG Dian-Ye1, WEI Bin1,2, LIU Yang1,3, FENG Xue-Hui1,2, MAO Chao1,4, XU Wei-Jie1,2, HE Mei1, WANG Lu1,2, ZHENG Zhi-Hu1,2, WANG Yuan-Yuan1, CHEN Lei-Yi1, PENG Yun-Feng1
), ZHANG Dian-Ye1, WEI Bin1,2, LIU Yang1,3, FENG Xue-Hui1,2, MAO Chao1,4, XU Wei-Jie1,2, HE Mei1, WANG Lu1,2, ZHENG Zhi-Hu1,2, WANG Yuan-Yuan1, CHEN Lei-Yi1, PENG Yun-Feng1
图5. 不同土壤碳组分对氮输入的响应及其主要机制。向上的箭头或者正号表示氮添加的促进效应, 反之则表示氮添加的抑制效应。
Fig. 5. Responses of various soil carbon fractions to nitrogen input and their primary mechanisms. MAOC, mineral-associated organic carbon; POC, particulate organic carbon; SOC, soil organic carbon. The arrow-up or positive sign means the stimulating effects of nitrogen input, and vice versa.
