Zhang, Yahai

Member Profile

EDUCATION

09/2018-01/2024 Beijing Normal University, Beijing, China

Ph.D. in Physical Geography


07/2022-06/2023 Max Planck Institute for Biogeochemistry, Jena, Germany

Visiting Ph.D. student in Model-Data Integration Group (Dr. Nuno Carvalhais)


08/2014-06/2018 Sun Yat-sen University, Guangzhou, China

Bachelor in Hydrology and Water Resources Engineering



RESEARCH INTERESTS

I am interested in exploring carbon flues dynamics under global changes by model-data fusion approaches and machine learning. Currently, I am working on the response of carbon use efficiency to vegetation states and climate across terrestrial ecosystems.



PROJECT EXPERIENCE

03/2022-12/2022 Ensemble post-processing of Big Earth Data for Three Poles

Mainly responsible for the post-processing of vegetation data from the three poles.

08/2020-05/2022 The second comprehensive scientific investigation of Qinghai-Tibet Plateau

Measure the soil moisture and observe the vegetation distribution in the Three river source region.

12/2019 Eco-hydrological process simulation of soil and water conservation in the upper of Ganjiang River

Used eco-hydrological model (DTVGM) to simulate vegetation growth in the upper reaches of Ganjiang River and calculated the changes of GPP.



CONFERENCES

04/2023 EGU 2023, Poster, Vienna, Austria

Zhang, Y., Koirala, S., Ye, A., Yang, H., & Carvalhais, N. (2023). Diagnosing spatial and temporal variations in the response of carbon use efficiency to vegetation states and climate across terrestrial ecosystems (No. EGU23-6679). Copernicus Meetings.

EGU 2020, Oral, Online 05/2020

Zhang, Y., & Ye, A. (2020). Quantitatively distinguish the impact of climate change and human activities on the vegetation changes in Mainland China based on the improved residual method. In EGU General Assembly Conference Abstracts (p. 2283).

AGU Fall Meeting, Poster, San Francisco, CA 12/2019

Zhang, Y., & Ye, A. (2019). Spatial and Temporal Variations in Vegetation Coverage Using AVHRR GIMMS and Terra MODIS Data in The Mainland of China. In AGU Fall Meeting Abstracts (Vol. 2019, pp. H11I-1609).

ACADEMIC TRAINING

The 4th Training Course (Virtual) on New Advances in Land Carbon Cycle Modeling, Online 05/2021

Learn new theory on land carbon storage dynamics and matrix approach to land carbon, nitrogen, and phosphorus modeling.

Teaching Assistant of Global Hydrology Course 02/2019-07/2019

Assist teachers in grading course assessments to ensure students understood material and stayed on track.



PUBLICATIONS

Zhang, Y., Koirala, S., Ye, A., Yang, H., & Carvalhais, N. (2023). Diagnosing spatial and temporal variations in the response of carbon use efficiency to vegetation states and climate across terrestrial ecosystems (No. EGU23-6679). Copernicus Meetings.

Zhang, Y., & Ye, A. (2022). Uncertainty analysis of multiple terrestrial gross primary productivity products. Global Ecology and Biogeography, 31, 2204– 2218.

Zhang, Y., & Ye, A. (2022). Improving global gross primary productivity estimation by fusing multi-source data products. Heliyon, 8(3), e09153.

Zhang, Y., & Ye, A. (2021). Would the obtainable Gross Primary Productivity (GPP) products stand up? A critical assessment of 45 global GPP products. Science of the total environment, 783: 146965.

Zhang, Y., & Ye, A. (2021). Quantitatively distinguishing the impact of climate change and human activities on vegetation in mainland China with the improved residual method. GIScience & Remote Sensing, 1-26.

Zhang, Y., & Ye, A. (2020). Spatial and temporal variations in vegetation coverage observed using AVHRR GIMMS and Terra MODIS data in the mainland of China. International Journal of Remote Sensing, 41(11), 4238-4268.

Zhang, Y., & Ye, A. (2024). The response of terrestrial vegetation carbon use efficiency to global environmental changes. Global and Planetary Change. (Under Review)

Yang, H., Wang, S., Son, R., Lee, H., Benson, V., Zhang, W., Zhang, Y., ... & Carvalhais, N. (2024). Global patterns of tree wood density. Global Change Biology, 30(3), e17224.

Wang, S., Sierra, C., Luo, Y., Wang, J., Chen, W., Zhang, Y., ... & Niu, S. (2023). Nitrogen limitation information retrieved from data assimilation. Biogeosciences Discussions, 1-20.

Huang, L., Ye, A., Tang, C., Duan, Q., & Zhang, Y. (2020). Impact of rural depopulation and climate change on vegetation, runoff and sediment load in the Gan River basin, China. Hydrology Research, 51(4), 768-780.

Huang, L., Ye, A., Zhang, Y., & Tang, C. (2019). Changes and attribution of water surface area in typical regions of China in the past 30 years (in Chinese). South-to-North Water Transfers and Water Science & Technology, 17(06):138-147+186.



AWARDS

2022/2023 Graduate Student Academic Innovation Award, 2nd prize, Beijing Normal University

11/2022,2021,2020 BNU School Scholarship, 1st prize

12/2021 BNU Alumni Scholarship

12/2019 Excellent poster, 2019 Annual meeting of Faculty of Geographical Science



SKILLS

Computer Skills: Proficient in using MS Office (Word, PPT, Excel etc.), MATLAB and ArcGIS, basic knowledge on Python/R.

Language Skills: Chinese, English (CET-4, CET-6, iTEP: Level 3.5, Upper Intermediate).