气候变化领域集成服务门户(CCPortal): Afforestation promotes the enhancement of forest LAI and NPP in China

CCPortal

DOI	10.1016/j.foreco.2020.117990
	Afforestation promotes the enhancement of forest LAI and NPP in China
	Chen Y.; Chen L.; Cheng Y.; Ju W.; Chen H.Y.H.; Ruan H.
发表日期	2020
ISSN	0378-1127
卷号	462
英文摘要	Recent national wide afforestation in China are playing an increasingly significant role in the global greening trend and CO2 mitigation. However, the long term knowledge of spatiotemporal pattern of plantation forests (PF) is essential to understand the continuability and sustainability of the PF contribution and its spatiotemporal pattern comparing to nature forests (NF). Here we combined an inventory based map of PF, three up-to-date remote sensing leaf area index (LAI) datasets, and a process-based terrestrial biogeochemical model to investigate the interannual variabilities (IAVs) and trends of LAI and net primary productivity (NPP) of natural and plantation forests in China, from 1982 to 2014. We found that PF possessed similar spatiotemporal patterns as those of NF, while they exhibited a greater enhancement of both LAI and NPP since 2000. The total proportions of LAI and NPP in the plantation areas increased from 22% to 23.4%, and 22% to 22.8% from 1982 to 2014, respectively. Although different datasets provided diverse rates, an increasing trend was in agreement. The spatially-explicit analysis also illustrated that the increasing proportions were primarily contributed by the Southern sub-regions, particularly the Southwest and South sub-regions, while the PF in Northern sub-regions (e.g., Inner Mongolia and Northeast) even showed a decreasing contribution trend. The quantitative outputs from this study supported that PF promoted the greening trend in China since the 21st century. However, we also argued that the swift increase in LAI and NPP by PF should mainly result from the growing number of tree plantations and the rapid growth of newly planted forests. The proper management of PF is, therefore, an essential task for the maintenance and long-term improvement of their ecosystem services. © 2020 Elsevier B.V.
语种	英语
scopus关键词	Ecosystems; Remote sensing; Biogeochemical modeling; Ecosystem services; Interannual variability; Leaf Area Index; Net primary productivity; Plantation forests; Spatially explicit; Spatiotemporal patterns; Reforestation; afforestation; annual variation; data set; ecosystem service; leaf area index; net primary production; remote sensing; spatiotemporal analysis; sustainability; trend analysis; twenty first century; China; Ecosystems; Forests; Mongolia; Patterns; Ratios; Reforestation; Remote Sensing; China; Nei Monggol
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155367
作者单位	Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, Jiangsu, China; Ministry of Education Key Laboratory for Earth System Modeling, Department for Earth System Science, Tsinghua University, Beijing, China; College of Forestry, Nanjing Forestry University, Nanjing, China; International Institute of Earth System Science, Nanjing University, Nanjing, China; Faculty of Natural Resources Management, Lakehead University, Thunder Bay, Canada
推荐引用方式 GB/T 7714	Chen Y.,Chen L.,Cheng Y.,et al. Afforestation promotes the enhancement of forest LAI and NPP in China[J],2020,462.
APA	Chen Y.,Chen L.,Cheng Y.,Ju W.,Chen H.Y.H.,&Ruan H..(2020).Afforestation promotes the enhancement of forest LAI and NPP in China.Forest Ecology and Management,462.
MLA	Chen Y.,et al."Afforestation promotes the enhancement of forest LAI and NPP in China".Forest Ecology and Management 462(2020).