大兴安岭多年冻土区森林土壤温室气体通量
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吴祥文, 臧淑英, 马大龙, 任建华, 李昊, 赵光影
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Greenhouse gas fluxes from forest soil in permafrost regions of Greater Hinggan Mountains, Northeast China
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WU Xiangwen, ZANG Shuying, MA Dalong, REN Jianhua, LI Hao, ZHAO Guangying
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表4 大兴安岭多年冻土区3种林型土壤温室气体通量与环境因子相关分析
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Tab. 4 Relationship between greenhouse gas fluxes and environmental factors in different forest types
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林型 | 年份 | 温室气体 | 土壤含水量 | 气温 | 土壤温度 | 5 cm | 10 cm | 15 cm | 兴安落叶松林 | 2016 | CO2 | -0.409 | 0.425 | 0.849** | 0.874** | 0.815** | CH4 | 0.254 | -0.199 | -0.311 | -0.358 | -0.243 | N2O | -0.015 | 0.551** | 0.275 | 0.116 | -0.230 | 2017 | CO2 | -0.057 | 0.527* | 0.862** | 0.877** | 0.855** | CH4 | 0.364 | -0.577** | -0.581* | -0.569** | -0.470* | N2O | -0.142 | 0.570** | 0.332 | 0.267 | 0.139 | 樟子松林 | 2016 | CO2 | -0.017 | 0.251 | 0.813** | 0.827** | 0.800** | CH4 | 0.194 | -0.324 | -0.402 | -0.398 | -0.385 | N2O | -0.131 | 0.403 | 0.021 | -0.066 | -0.175 | 2017 | CO2 | -0.099 | 0.418 | 0.891** | 0.890** | 0.787** | CH4 | 0.599* | -0.446* | -0.287 | -0.261 | -0.317 | N2O | 0.020 | 0.531* | 0.223 | 0.148 | -0.009 | 白桦林 | 2016 | CO2 | -0.413 | 0.163 | 0.856** | 0.855** | 0.827** | CH4 | 0.425 | -0.297 | -0.658* | -0.592** | -0.477* | N2O | 0.068 | 0.423 | -0.281 | -0.352 | -0.411 | 2017 | CO2 | -0.382 | 0.365 | 0.828** | 0.839** | 0.780** | CH4 | 0.556* | -0.550* | -0.644** | -0.617** | -0.540* | N2O | 0.259 | 0.207 | -0.294 | -0.348 | -0.511* |
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