GUO Jingjing, Female, born in August 1994. Ph.D. in Ecology, Associate Research Fellow. Her research focuses on Tree Physiological Ecology, with particular emphasis on key scientific challenges related to the construction of the "Three-North" Shelterbelt and the quality enhancement of plantation forests in northern China. She aims to elucidate the eco-physiological mechanisms behind tree decline, mortality, and productivity reduction driven by environmental stressors, such as water scarcity and extreme climatic events. In recent years, she has systematically investigated the adaptation mechanisms of sand-fixing plants under combined drought and heat stress, and further explored the physiological basis for the coordinated enhancement of productivity and stress resistance in poplar plantations. Her work provides important theoretical foundations and technical support for the stability maintenance, tending management, and breeding of shelterbelts in the Horqin Sandy Land. Over the past five years, she has published 13 peer-reviewed articles in leading journals in Ecology and Forestry, including Plant, Cell & Environment, Forest Ecology and Management, and Agricultural and Forest Meteorology. She has led five competitive research projects, such as the Young Scientists Fund of the National Natural Science Foundation of China, and the General Program of the China Postdoctoral Science Foundation.

2016.09 – 2022.06 Ph.D. in Ecology, Institute of Applied Ecology, Chinese Academy of Sciences 2021.11 – 2022.05 Visiting Ph.D. Student, Wageningen University & Research 2012.09 – 2016.06 B.S. in Soil and Water Conservation and Desertification Control, Liaoning Technical University

2025.12—Present Associate Research Fellow, Institute of Applied Ecology, Chinese Academy of Sciences 2025.07—2025.11 Assistant Research Fellow, Institute of Applied Ecology, Chinese Academy of Sciences 2022.07—2025.06 Special Research Assistant / Postdoctoral Fellow, Institute of Applied Ecology, Chinese Academy of Sciences

Tree Stress Physiology; Wind-breaking and Sand-fixing Plants; Multi-factor Compound Stress; Hydraulic-Carbon Coupling Mechanism

1. 2021 Merit Student, University of Chinese Academy of Sciences 2. 2018: Merit Student, University of Chinese Academy of Sciences 3. 2026: Lüye Outstanding Young Scientist, Institute of Applied Ecology, Chinese Academy of Sciences

2026–2028: Project Leader, The hydraulic-thermal coupling mechanism in response and adaptation to combined drought and high-temperature stresses of native tree species in Horqin Sandy Land, Young Scientists Fund (Category C), National Natural Science Foundation of China (NSFC). 2024–2025: Project Leader, Effects of drought and freeze–thaw stress on growth and stress resistance of different poplar species in northern China, General Program of the China Postdoctoral Science Foundation. 2023–2025: Project Leader, Physiological mechanisms of stress resistance in major afforestation tree species for windbreak and sand fixation in northwest Liaoning, Doctoral Research Initiation Fund, Liaoning Provincial Department of Science and Technology. 2023–2024: Project Leader, Adaptive mechanisms of windbreak and sand-fixing tree species to combined drought and heat stress in northwest Liaoning, Youth Start-up Fund, Institute of Applied Ecology, Chinese Academy of Sciences. 2026–2030: Key Participant, Formation and restoration mechanisms of low-efficiency forests under constraints of total water resources, Strategic Priority Research Program (Category B), Chinese Academy of Sciences. 2025–2028: Key Participant, Tree hydraulic mechanisms underlying the functional stability of remnant natural forests in the Horqin Sandy Land, General Program, National Natural Science Foundation of China (NSFC). 2023–2027: Key Participant, Mechanisms of degradation and restoration in desert oasis ecosystems under water resource constraints, National Key Research and Development Program of China .

1.Guo Jing-Jing, Gong Xue-Wei, Hao Guang-You*. 2025. Leaf transpirational cooling and thermal tolerance vary along the spectrum of iso-anisohydric stomatal regulation in sand-fixing shrubs. Plant, Cell and Environment, 48:2053-2066. 2.Guo Jing-Jing, Gong Xue-Wei, Li Xue-Hua, Zhang Chi, Duan Chun-Yang, Lohbeck Madelon, Sterck Frank, Hao Guang-You*. 2024. Coupled hydraulics and carbon economy contribute to age-related growth decline and revitalization of sand-fixing shrubs after crown removal. Plant, Cell and Environment, 47(8):2999-3014. 3.Guo#1 Ke-Xin, Guo#1 Jing-Jing, Gong Xue-Wei, Shi Han, Zhou Yong-Jiao, Leng Qian-Nan, Hao Guang-You*. 2024. Coordinated responses of Hemiptelea davidii at the individual tree and stand levels to interannual climatic variation in a water-limited area. Forest Ecology and Management, 561:121900. 4.Guo Jing-Jing, Gong Xue-Wei, Fang Li-Dong, Jiang De-Ming, Ala Musa, Bucci Sandra, Scholz Fabian, Goldstein Guillermo, Hao Guang-You*. 2020. Switching of dominant positions between two sand-fixing shrub species during the dune revegetation process is underlain by their contrasting xylem hydraulics and water use strategies. Land Degradation and Development, 31:1195-1205. 5.Gong Xue-Wei, Leigh Andrea, Guo Jing-Jing, Fang Li-Dong, Hao Guang-You*. 2023. Sand dune shrub species prioritize hydraulic integrity over transpirational cooling during an experimental heatwave. Agricultural and Forest Meteorology, 336: 109483. 6.Wang Ai-Ying, Cui Han-Xiao, Gong Xue-Wei, Guo Jing-Jing, Wu Nan, Hao Guang-You*. 2022. Contrast in vulnerability to freezing-induced xylem embolism contributes to divergence in spring phenology between diffuse- and ring-porous temperate trees. Forest Ecosystems, 9:100070. 7.Gong Xue-Wei, Guo Jing-Jing, Fang Li-Dong, Bucci Sandra, Goldstein Guillermo, Hao Guang-You*. 2021. Hydraulic dysfunction due to root-exposure-initiated water stress is responsible for the mortality of Salix gordejevii shrubs on the windward slopes of active sand dunes. Plant and Soil, 459:185-201. 8.Fang Li-Dong, Ning Qiu-Rui, Guo Jing-Jing, Gong Xue-Wei, Zhu Jiao-Jun, Hao Guang-You*. 2020. Hydraulic limitation underlies the dieback of Populus pseudo-simonii trees in water-limited areas of northern China. Forest Ecology and Management, 483:118764. 9.Gong Xue-Wei , Guo Jing-Jing, Jiang De-Ming, Li Xue-Hua, Scholz Fabian, Bucci Sandra, Goldstein Guillermo, Hao Guang-You*. 2020. Contrasts in xylem hydraulics and water use underlie the specific adaptions of sand-fixing shrub species to different stages of dune stabilization. Forest Ecology and Management, 457:117705. 10.Wang Ai-Ying, Hao Guang-You*, Guo Jing-Jing, Liu Zhi-Hui, Zhang Jiao-Lin, Cao Kun-Fang. 2020. Differentiation in leaf physiological traits related to shade and drought tolerance underlies contrasting adaptations of two Cyclobalanopsis (Fagaceae) species at the seedling stage. Forests, 2020, 11:844. 11.刘晨明#1, 郭晶晶#1, 郝广友*, 崔含笑, 宋申豪. 2025. 科尔沁沙地主要经济树木茎水力功能及木质部组织和纹孔水平解剖结构研究. 南京林业大学学报. 12.郑悦, 王爱英*, 苏立新, 郭晶晶, 段春旸, 殷笑寒, 龚雪伟, 郝广友. 2022. 沈阳市区不同环境下银杏水力特征和非结构性碳水化合物含量. 应用生态学报, 33(3):711-719. 13.王凯*, 郭晶晶, 王冬琦, 刘爽, 倪盼盼. 2015. 樟子松和油松根叶对春季干旱胁迫的响应. 生态学杂志, 34(11):3132-3138.