Fine root growth and contribution to soil carbon in a mixed mature Pinus koraiensis forest
Fine root growth and contribution to soil carbon in a mixed mature Pinus koraiensis forest
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成熟红松混交林细根生长及其对土壤碳的贡献
DOI：
10.1007/s11104-015-2724-x
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发表时间：
2016-03
期刊：
影响因子：
4.9
通讯作者：
Mai-He Li
中科院分区：
文献类型：
--
作者：
Cunguo Wang;Shijie Han;Yumei Zhou;Junhui Zhang;Xingbo Zheng;Guanhua Dai;Mai-He Li
森林细根对碳循环有重要贡献，而古老的森林在全球碳收支中发挥着重要作用。因此，我们研究了细根生产和营业额的时间变化，在老forest.MethodsFineRootdynamics进行了调查，连续6年的土芯，并与降雨量和气温在一个混合的成熟阔叶红松林在中国东北部。月活、死细根量与前一个月气象条件呈显著正相关。细根月产量与当月气温有关。细根生产量的年内格局与净初级生产量相似，与凋落叶量相反。总细根生产占净初级生产力的25%，细根输入土壤碳的1.2倍大于叶litterfall.ConclusionsOur结果表明细根和气象条件之间的紧密联系。细根在森林碳收支中的重要作用表明，森林碳通量的估算需要考虑细根动态。
Background and aimsForest fine roots contribute substantially to carbon cycling, and old growth forests have an important role in the global carbon budget. We, hence, studied temporal variation in fine root production and turnover in an old forest.MethodsFine root dynamics were investigated, using sequential soil cores for 6 years, and related to rainfall and air temperature in a mixed mature broad-leaved Pinus koraiensis forest in northeastern China.ResultsThe mass, production, mortality, and disappearance of fine roots showed intra-annual variation. Monthly live and dead fine root mass were significantly positively correlated with meteorological conditions of the previous month. Monthly fine root production was associated with air temperature of the current month. The intra-annual pattern of fine root production was similar to that of net primary production and opposite to that of leaf litterfall. Total fine root production accounted for 25 % of net primary production, and the fine root input to soil carbon was 1.2 times larger than the leaf litterfall.ConclusionsOur results indicate tight linkages between fine roots and meteorological conditions. The important role of fine roots in forest carbon budget suggests that forest carbon flux estimations need to take fine root dynamics into account.
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影响因子：
--
作者：
Guo Zhong
通讯作者：
Guo Zhong
东北阔叶红松混交林细根和土壤氮素有效性对短期氮肥的响应
影响因子：
3.7
作者：
Wang C;Han S;Zhou Y;Yan C;Cheng X;Zheng X;Li MH
通讯作者：
Li MH
影响因子：
4.9
作者：
Lukac, Martin;Godbold, Douglas L.
通讯作者：
Godbold, Douglas L.
影响因子：
4
作者：
Wiley, Erin;Huepenbecker, Sarah;Helliker, Brent R.
通讯作者：
Helliker, Brent R.
DOI：
10.1111/nph.12847
发表时间：
2014-08
期刊：
The New phytologist
影响因子：
--
作者：
De Kauwe MG;Medlyn BE;Zaehle S;Walker AP;Dietze MC;Wang YP;Luo Y;Jain AK;El-Masri B;Hickler T;Wårlind D;Weng E;Parton WJ;Thornton PE;Wang S;Prentice IC;Asao S;Smith B;McCarthy HR;Iversen CM;Hanson PJ;Warren JM;Oren R;Norby RJ
通讯作者：
Norby RJ