Relationship between multi-scale climate factors and performance of ecological engineering on the Loess Plateau, China

作     者：Panxing He Jun Ma Zhiming Han Mingjie Shi Dongxiang Xu Zongjiu Sun Panxing He;Jun Ma;Zhiming Han;Mingjie Shi;Dongxiang Xu;Zongjiu Sun

作者机构：Ministry of Education Key Laboratory for BiodiversityScience and Ecological EngineeringNational Observations and Research Station for Wetland Ecosystems of the Yangtze EstuarySchool of Life SciencesFudan UniversityShanghai200438People’s Republic of China Ministry of Education Key Laboratory for Western Arid Region Grassland Resources and EcologyCollege of Grassland and Environment SciencesXinjiang Agricultural UniversityUrumqi830052People’s Republic of China State Key Laboratory Base of Eco-Hydraulic Engineering in Arid AreasXi’an University of TechnologyXi’an710077People’s Republic of China School of Earth and Environmental SciencesUniversity of QueenslandSt Lucia4072Australia 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2022年第33卷第3期

页      面：789-800页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0907[农学-林学] 07[理学] 08[工学] 083305[工学-城乡生态环境与基础设施规划] 0829[工学-林业工程] 0706[理学-大气科学] 0901[农学-作物学] 0833[工学-城乡规划学] 

基　　金：The work was supported by the Natural Science Foundation of China(41601181) the Scientifi c Research Program of Shanghai Science and Technology Commission(20DZ1204702). 

主　　题：Vegetation restoration Ecological engineering Water-related climatic factors Atmospheric circulation and sunspot Loess Plateau 

摘      要：The long-term “Grain-to-Green Program (GGP) on China’s Loess Plateau is a major global ecological engineering project which has significantly boosted vegetation renewal. Some studies have found that the rate of restoration is quite rapid during the implementation of ecological engineering, however, the influence of multi-scale climatic conditions on the performance of ecological engineering is unclear. In this study, multiple sources of remote sensing data were used to estimate the dynamics of vegetation structural and functional indicators, water-related local climatic factors, and atmospheric circulation factors. These datasets were also used to detect possible causes for vegetation restoration on the Loess Plateau over the past 20 years. The results show that widespread increases in rates of normalized difference vegetation indexes (NDVI), leaf area indexes (LAI), gross primary production (GPP), and aboveground biomass carbon (ABC) during 2000–2016 were significantly higher than before 2000. GPP was significantly correlated with rainfall and surface runoff on a monthly scale, and there were significant positive correlations between GPP and atmospheric circulation. Our results demonstrate that both vegetation structural and functional indicators rapidly increase, and ecological engineering greatly accelerated vegetation restoration after 2000. Local climatic conditions and atmospheric circulation patterns enhance vegetation growth and impact of ecological engineering.