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Quantifying the response of forest carbon balance to future climate change in Northeastern China: Model validation and prediction

机译:量化中国东北地区森林碳平衡对未来气候变化的响应:模型验证和预测

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摘要

In this study, we report on the validation of process-based forest growth and carbon and nitrogen model of TRIPLEX against observed data, and the use of the model to investigate the potential impacts and interaction of climate change and increasing atmospheric CO_2 on forest net primary productivity (NPP) and carbon budgets in northeast of China. The model validation results show that the simulated tree total volume, NPP, total biomass and soil carbon are consistent with observed data across the Northeast of China, demonstrating that the improved TRIPLEX model is able to simulate forest growth and carbon dynamics of the boreal and temperate forest ecosystems at regional scale. The climate change would increase forest NPP and biomass carbon but decrease overall soil carbon under all three climate change scenarios. The combined effects of climate change and CO_2 fertilization on the increase of NPP were estimated to be 10-12% for 2030s and 28-37% in 2090s. The simulated effects of CO_2 fertilization significantly offset the soil carbon loss due to climate change alone. Overall, future climate change and increasing atmospheric CO_2 would have a significant impact on the forest ecosystems of Northeastern China.
机译:在本研究中,我们报告了基于观测数据的基于过程的森林生长以及TRIPLEX的碳和氮模型的验证,并使用该模型调查了气候变化和不断增加的大气CO_2对森林净初级生产力的潜在影响和相互作用。中国东北的生产力(NPP)和碳预算。模型验证结果表明,模拟的树木总体积,NPP,总生物量和土壤碳与中国东北地区的观测数据一致,表明改进的TRIPLEX模型能够模拟森林生长以及北方和温带的碳动态。区域规模的森林生态系统。在这三种气候变化情景下,气候变化都会增加森林NPP和生物量碳,但会降低土壤总碳。气候变化和CO_2施肥对NPP增加的综合影响估计在2030年代为10-12%,在2090年代为28-37%。模拟的CO_2施肥效果可显着抵消仅因气候变化而造成的土壤碳损失。总体而言,未来的气候变化和大气中CO_2的增加将对中国东北的森林生态系统产生重大影响。

著录项

  • 来源
    《Global and planetary change》 |2009年第4期|179-194|共16页
  • 作者单位

    Institute of Environmental Sciences, Department of Biology Sciences, University of Quebec at Montreal, Case postale 8888, Succ Centre-Ville Montreal, QC Canada H3C 3P8 Ecology Research Section, Central-South University of Forestry & Technology, Changsha, Hunan 410004, China Institute of Environmental Sciences, University of Quebec at Montreal, Case postale 8888, Succursale Centre-Ville, Montreal, Canada H3C 3P8;

    Institute of Environmental Sciences, Department of Biology Sciences, University of Quebec at Montreal, Case postale 8888, Succ Centre-Ville Montreal, QC Canada H3C 3P8;

    Institute of Environmental Sciences, Department of Biology Sciences, University of Quebec at Montreal, Case postale 8888, Succ Centre-Ville Montreal, QC Canada H3C 3P8 Department of Ecology, College of Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China;

    Department of Ecology, College of Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China;

    Department of Ecology, College of Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China;

    Department of Ecology, College of Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China;

    Department of Ecology, College of Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    process-based model; TRIPLEX1.0; carbon budget; climate change scenarios; forest biomass; soil carbon; forest ecosystem;

    机译:基于过程的模型;TRIPLEX1.0;碳预算;气候变化情景;森林生物量土壤碳森林生态系统;

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