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1 不同林型表层土壤基本理化性质
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Tab. 1 The physicochemical properties of surface soil (0-15 cm) in different forest types
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| 林型 | 年份 | pH | 容重
(g·cm-3) | 硝态氮
(mg·kg-1) | 铵态氮
(mg·kg-1) | 有机碳
(g·kg-1) | 全氮
(g·kg-1) | | 兴安落叶松林 | 2016 | 5.50±0.11Aa | 1.01±0.08Aa | 2.65±1.01Aa | 5.31±0.75Ba | 47.47±1.77Aa | 3.78±0.63Aa | | 2017 | 5.79±0.12Aa | 1.00±0.09Aa | 1.09±0.31Ab | 3.23±0.50Bb | 51.38±1.54Aa | 2.66±0.49Aa | | 樟子松林 | 2016 | 5.58±0.13Aa | 1.04±0.05Aa | 2.10±0.34Aa | 6.10±1.07Ba | 42.77±1.83Aa | 3.60±0.03Aa | | 2017 | 5.52±0.16Aa | 1.05±0.07Aa | 1.10±0.46Aa | 4.27±0.63Bb | 46.69±1.65Aa | 2.27±0.18Aa | | 白桦林 | 2016 | 4.70±0.09Ba | 0.72±0.04Ba | 2.94±0.89Aa | 9.07±1.64Aa | 44.28±2.05Aa | 4.49±0.67Aa | | 2017 | 4.58±0.10Ba | 0.69±0.05Ba | 1.60±0.49Ab | 6.80±1.34Ab | 46.26±1.46Aa | 2.47±0.22Ab |
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