文献类型：期刊文献

英文题名：The influence of disturbance and conservation management on the greenhouse gas budgets of China's forests

作者：Liu, Weiwei[1,2,3] Guo, Ziliang[1,2] Lu, Fei[3,4] Wang, Xiaoke[3,4] Zhang, Manyin[1,2] Liu, Bojie[5] Wei, Yuanyun[1,2] Cui, Lijuan[1] Luo, Yunjian[6] Zhang, Lu[3] Ouyang, Zhiyun[3] Yuan, Yafei[7]

第一作者：Liu, Weiwei;刘魏魏

通信作者：Lu, F[1]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Ecol Funct & Restorat, Beijing 100091, Peoples R China;[2]Natl Ecosyst Res Stn Hengshui Wetland, Hengshui 053000, Peoples R China;[3]Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China;[4]China Joint Ctr Global Change Studies, Beijing 100875, Peoples R China;[5]China Nucl Power Engn Co Ltd, Beijing 100840, Peoples R China;[6]Yangzhou Univ, Sch Hort & Plant Protect, Yangzhou 225000, Jiangsu, Peoples R China;[7]North China Power Engn Co Ltd, China Power Engn Consulting Grp, Beijing 100011, Peoples R China

年份：2020

卷号：261

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20201208332721);Scopus(收录号：2-s2.0-85081974841);WOS:【SCI-EXPANDED(收录号:WOS:000543511300004)】；

基金：This work was supported by the National Natural Science Foundation of China (71874182 and 71603251), National Major Research Program of China (2017YFA0604702 and 2016YFC0503403), and the Youth Innovation Promotion Association, Chinese Academy of Sciences.

语种：英文

外文关键词：Forest ecosystem; Fire; Diseases pests and rats; Harvesting; Biomass carbon sink; Conservation management

摘要：Diseases, pests, and rats (DPR), forest fires and harvesting have been identified as critical disturbance factors that influence the carbon (C) cycle of forest ecosystems. In addition, forest conservation management, i.e., fire and DPR control, and reductions in wood production could increase C sequestration and reduce emissions. However, the offsets or promotion effects of greenhouse gas (GHG) budgets resulting from these factors on forest biomass C sinks remain unknown in China. Using the carbon accounting and net mitigation of forest (CANM-Forest) methodology, we assessed the GHG budgets of disturbances and conservation management in China from 2000 to 2014. The objective of our study was to determine the main emissions factors, analyze the effective mitigation strategies, and clarify the offsets or promotion of these activities in relation to the Chinese forest biomass C sink. The results indicated that disturbances released 64.9 Tg Ce yr(-1) and offset 32.1% of the forest biomass C sink, which was estimated based on national forest resource inventories. Harvesting was a major contributor to national GHG emissions, while the main driving factor of regional GHG emissions varied. Furthermore, conservation management significantly mitigated 27.3 Tg Ce yr(-1) emissions and enhanced the net biomass C sink by 24.3%, indicated that 24.3% of the Chinese forest's biomass C sink was attributed to conservation management. Fire control dominated promotion effects in the national forests, and the main enhanced factor of the regional forest's biomass C sink varied. Proper forest conservation management should be implemented in accordance with the specific conditions of regional forests to increase contributions to GHG mitigation. Our study provided a forest C accounting for China and indicated that simulations of natural and human disturbances, together with forest management, could provide insights into mitigation options and sustainable forest management for policymakers. (C) 2020 Published by Elsevier Ltd.