聯絡資訊

楊啟見 助理教授

辦公室 : 地理系館503室

Email : cijianyang@ntu.edu.tw

電話 :+886-2-33665830

研究室名稱：Surface Processes and Landforms

個人簡介與研究領域

My research focuses on three related topics: Landscape Evolution, Critical Zone Surface Processes, and Landscape Resilience. I investigate how tectonic activity, climate variability, extreme events, and human activities jointly influence the formation of mountain landscapes, the transport of materials, and landscape recovery after major disturbances.

I. In Landscape Evolution, I have studied the mudstone badlands of southwestern Taiwan, examining how rainfall, runoff, lithology, erosion, and tectonic settings control rapid landscape change. My research also extends to meander evolution, drainage-divide migration, and global drainage-basin geometry, with the aim of understanding whether landscape evolution across different environments is governed by common controls.

II. In Critical Zone Surface Processes, I focus on the relationships among landscape energy, hydrology, weathering, and material transport, and investigate how water, sediment, dissolved materials, large wood, and carbon are produced, stored, and transported within mountain Critical Zones. My current research at the Fushan Experimental Forest uses long-term observations to examine how landscape energy, hydrological connectivity, and solute export are related in a highly humid environment. I am also developing research on enhanced rock weathering and carbon dioxide removal. In addition, I combine deep learning with hydrological monitoring to quantify driftwood transport during typhoon-driven floods.

III. In Landscape Resilience, I investigate how mountain landscapes reorganize and recover after major disturbances. My research includes earthquake–typhoon interactions, bedload transport, landslides, and river-channel adjustment, as well as the use of environmental seismology to monitor changes in rivers and subsurface environments during and after extreme events. My goal is to better understand how extreme events alter sediment supply, river conditions, and recovery times, and to develop a framework for evaluating long-term landscape change and resilience in mountain environments.

學術經歷

EDUCATION
2020 Ph.D., Tectonic and climatic processes on mudstone badland evolution in southwestern Taiwan, Geography, National Taiwan University.

EMPLOYMENT
2021-2023 Postdoctoral fellow, German Research Centre for Geosciences, Potsdam.
2020-2021 Postdoctoral fellow, National Taiwan University.
2020-2021 Adjunct assistant professor, National Taiwan Normal University.

任教科目

Introduction to Physical Geography 自然地理學通論

Geomorphology and Lab 地形學及實習

Drainage Basin Geomorphology 集水區地形學

Field Geomorphology 野外地形學

Terrain analysis and hydrologic modeling 數值地形分析與水文分析

Special Topics in Geography (I) 地理議題專論一

Computer Programming 程式設計 (英文授課)

Surface Processes and Landscape Evolution 地表作用與演育

研究著作

*corresponding author; ** co first author; ⁺advisee

1. Qian-Yun Kong⁺, Ci-Jian Yang*, Cheng-Hua Tsai, Meng-Yu Lee (2026) Integrating deep-learning detection and hydrological monitoring for driftwood flux estimation in a steep tropical watershed during a typhoon-driven flood, 679. (IF:7.3; 17/259, Geosciences, Multidisciplinary).
2. Chung-Te Chang, Ci-Jian Yang, Chiu-Hsien Wang, Jr-Chuan Huang, Neng-Huei Lin, Teng-Chiu Lin (2026) Divergent contributions of acidic and neutralization potential to precipitation acidity across Islet, Urban and Forest sites, northern Taiwan, Environmental Pollution, 406. (IF:7.2; 52/395, Environmental Sciences).
3. Ci-Jian Yang*, Cheng-Hua Tsai, Ying-Tong Lin (2025). Anthropogenic disruption of sediment connectivity by embankment dams in the fast-eroding badland basin. Geomorphology, 488. (IF:3.3; 19/67 Geography, Physical).
4. Ci-Jian Yang*, Jens M. Turowski, Boris Gailleton. et al. (2025). Badland distribution as a marker of rapid tectonic activity. Scientific reports, 15, 15912. (IF:3.8; 25/134, Multidisciplinary)
5. Ron Nativ, Jens M. Turowski, Jui-Ming Chang, Niels Hovius, Ci-Jian Yang et al. (2025). Stationary boulders increase river seismic frequency via turbulence. Geophysical Research Letters, 52, e2024GL113784. (IF:4.6; 30/254, Geosciences, Multidisciplinary)
6. Qi Zhou, Hui Tang, Jens M. Turowski, Jean Braun, Michael Dietze, Fabian Walter, Ci-Jian Yang, Sophie Lagarde (2024). Benford's Law as Debris Flow Detector in Seismic Signals. Journal of Geophysical Research: Earth Surface, 129, e2024JF007691. (IF:4.1; 58/253, Geosciences, Multidisciplinary).
7. Ci-Jian Yang*, Jens M. Turowski, Qi Zhou, Ron Nativ, Hui Tang, Jui-Ming Chang, Wen-Sheng Chen (2024). Measuring Bedload Motion Time at Second Resolution Using Benford's Law on Acoustic Data. Earth and Space Science, 11(7). (IF:3.5; 80/253, Geosciences, Multidisciplinary).
8. Chuanqi He, Ci-Jian Yang, Jens M. Turowski, Richard F. Ott, Jean Braun, Hui Tang, Shadi Ghantous, Xiaoping Yuan, and Gaia Stucky de Quay (2024). A global dataset of the shape of drainage systems, Earth Syst. Sci. Data, 16,1151–1166. (IF:11.82; 3/191 Earth and Planetary Sciences - General Earth and Planetary Sciences)
9. Jun-Yi Lee, Ci-Jian Yang, Tsung-Ren Peng, Tsung-Yu Lee, and Jr-Chuan Huang (2023). Landscape structures regulate the contrasting response of recession along rainfall amounts, Hydrol. Earth Syst. Sci., 27, 4279–4294. (IF: 3; 11/103 WATER RESOURCES)
10. Sen Xu, Aaron Bufe, Si-Liang Li, Erica D. Erlanger, Lishan Ran, Jun Zhong, Ci-Jian Yang, Liwei Zhang, Tingting Ma, Dirk Sachse (2023). Erosional modulation of the balance between alkalinity and acid generations from rock weathering. Geochimica et Cosmochimica Acta. (IF: 3; 8/87, GEOCHEMISTRY & GEOPHYSICS)
11. Loan Thi Phan, Sue-Ching Jou, Chyi-Rong Chiou, Ci-Jian Yang (2023). Is it because of climate change? Social-ecological system analysis of wetland protected area in Vietnamese Mekong Delta. Wetlands Ecology and Management.
12. Lin Gao, Chuanqi He, Gang Rao, Ci-Jian Yang, Xiaoping Yuan, Jingtao Lai, Pengcheng Tang, Lei Wu (2023). Numerical examination of the geomorphic indicators for lateral fold growth. Geomorphology, 432. (IF:4.14; 11/50 Geography, Physical).
13. Ci-Jian Yang*, Pei-Hao Chen, Erica D. Erlanger, Jens M. Turowski, Sen Xu, Tse-Yang Teng, Jiun-Chuan Lin, and Jr-Chuang Huang (2023). Mobile evaporite enhances the cycle of physical–chemical erosion in badlands. Earth Surface Dynamics, 11(3). (IF:3.4; 18/50 Geography, Physical).
14. Chih-Hsin Chung, Chih-Wei Chuang, Huan-Yu Lin, Ci-Jian Yang, Chun-Wei Tseng (2022). Application of big data and environmental indicators to discuss the changes of coastal forest belts in southwestern Taiwan under climate change. Journal of Taiwan Agricultural Engineering, 68(3), 62-75 (in Chinese).
15. Chung-Te Chang, Ci-Jian Yang, Jr-Chuan Huang (2022). Wet depositions of cations in forests across NADP, EMEP, and EANET monitoring networks over the last two decades. Environmental Science and Pollution Research. (IF:5.19; 87/274 Environmental Sciences).
16. Chung-Te Chang, Lixin Wang, Lih-Jih Wang, Chiung-Pin Liu, Ci-Jian Yang, Jr-Chuan Huang, Chiao-Ping Wang, Neng-Huei Lin and Teng-Chiu Lin (2022). On the seasonality of long-range transport of acidic pollutants in East Asia. Environmental Research Letters, 17(9). (IF:6.94; 55/274 Environmental Sciences).
17. Chung-Te Chang, Ci-Jian Yang, Ko-Han Huang, Jr-Chuan Huang, Teng-Chiu Lin (2022). Changes of precipitation acidity related to sulfur and nitrogen deposition in forests across three continents in north hemisphere over last two decades. Science of the Total Environment, 806. (IF:7.96; 25/274 Environmental Sciences).
18. Jen-Yang Lin, Chun-Wei Tseng, Ci-Jian Yang, Chih-Wei Chuang (2022). Quantitative Differences in Water-Resource Conservation Capacity Associated With Land-Use Changes in the Zhuokou River Watershed. Journal of Chinese Soil and Water Conservation, 53 (1): 43-53.
19. Chuanqi He, Ci-Jian Yang, Gang Rao, Duna C. Roda-Boluda, Xiaoping Yuan, Rong Yang, Lin Gao, Li Zhang (2021). Landscape response to normal fault linkage: Insights from numerical modeling. Geomorphology, 388. (IF:4.14; 11/50 Geography, Physical).
20. Chuanqi He, Ci-Jian Yang, Jens M. Turowski (2021). The effect of roughness spacing and size on lateral deflection of bedload particles. Water Resources Research, 57. (IF:5.24; 11/98 Water Resources).
21. Ci-Jian Yang*, Jens M. Turowski, Niels Hovius, Jiun-Chuan Lin & Kuo-Jen Chang (2021, Jul). Badland landscape response to individual geomorphic events. Nature Communications, 12(1):4631. (IF:14.92; 4/72 Multidisciplinary Sciences).
22. Ci-Jian Yang, Chia-Hung Jen, Yeuan-Chang Cheng, Jiun-Chuan Lin (2021). Quantification of mudcracks-driven erosion using terrestrial laser scanning in laboratory runoff experiment. Geomorphology, 375. (IF:4.12; 11/50 Geography, Physical).
23. Chuanqi He, Ci-Jian Yang**, Jens M. Turowski, Gang Rao, Duna C. Roda-Boluda & Xiao-Ping Yuan (2021). Constraining tectonic uplift and advection from the main drainage divide of a mountain belt. Nature communications, 12,544. (IF:14.92; 4/72 Multidisciplinary Sciences).
24. Tseng, C.-W., Song, C.-E., Wang, S.-F., Chen, Y.-C., Tu, J.-Y., Ci-Jian Yang, Chuang, C.-W. (2020). Application of High-Resolution Radar Rain Data to the Predictive Analysis of Landslide Susceptibility under Climate Change in the Laonong Watershed, Taiwan. Remote Sensing, 12(23), 3855. (IF:4.85; 27/200 Geosciences, Multidisciplinary).
25. Kuo-Jen Chang, Chun-Wei Tseng, Chih-Ming Tseng, Ta-Chun Liao and Ci-Jian Yang* (2020). Application of Unmanned Aerial Vehicle (UAV)-Acquired Topography for Quantifying Typhoon-Driven Landslide Volume and Its Potential Topographic Impact on Rivers in Mountainous Catchments. Applied Sciences, 10(17), 6102. (IF:2.68; 38/90 Engineering, Multidisciplinary).
26. Ray Y. Chuang, Chih-Heng Lu, Ci-Jian Yang, Ya-Shien Lin, Tsung-Yu Lee (2020). Coseismic uplift of the 1999 M w7.6 Chi‐Chi earthquake and implication to topographic change in frontal mountain belts. Geophysical Research Letters, 47. (IF:4.72: 31/200 Geosciences, Multidisciplinary).
27. Chuanqi He, Ci-Jian Yang, Gang Rao, Xiao-Ping Yang, Duna Roda-Boluda, Yali Cheng, Rong Yang, Li Zhang, Qi Yao (2020). Seismic assessment of the Weihe Graben, central China: Insights from geomorphological analyses and 10Be-derived catchment denudation rates. Geomorphology, 359(15). (IF:4.12; 11/50 Geography, Physical).
28. Gang Rao, Chuanqi He, Hanlin Chen, Xiaoping Yang, Xuhua Shi, Peng Chen, Jianmin Hu, Qi Yao, Ci-Jian Yang (2020). Use of small unmanned aerial vehicle (sUAV)-acquired topography for identifying and characterizing active normal faults along the Seerteng Shan, North China. Geomorphology, 359(15). (IF:4.12; 11/50 Geography, Physical).
29. Ci-Jian Yang*, Li-Wei Yeh, Yeuan-Chang Cheng, Chia-Hung Jen, Jiun-Chuan Lin (2019, Dec). Badland Erosion and Its Morphometric Features in the Tropical Monsoon Area. Remote sensing, 11(24), 3051. (IF:4.85; 27/200 Geosciences, Multidisciplinary).
30. Yeuan-Chang Cheng, Ci-Jian Yang*, Jiun-Chuan Lin (2019, Oct). Application for Terrestrial LiDAR on Mudstone Erosion Caused by Typhoons. Remote sensing , 11(20),2425. (IF:4.85; 27/200 Geosciences, Multidisciplinary).
31. Chuanqi He, Gang Rao, Rong Yang, Jianmin Hu, Qi Yao, Ci-Jian Yang (2019). Divide migration in response to asymmetric uplift: Insights from the Wula Shan horst, North China. Geomorphology, 339,44-57. (IF:4.139; 11/50 Geography, Physical).
32. Ying-Tong Lin, Kuo-Chen Chang, Ci-Jian Yang (2018) Object-based Classification for Detecting Landslides and Vegetation Recovery—A Case at Baolai, Kaohsiung. Journal of Chinese Soil and Water Conservation, 49(2), 98-109.
33. Ya-Shien Lin, Ray Y. Chuang, Jiun-Yee Yen, Yi-Chin Chen, Yu-Ting Kuo, Bo-Lin Wu, Shao-Yi Huang, Ci-Jian Yang (2018). Mapping surface breakages of the 2018 Hualien earthquake by using UAS photogrammetry. Terrestrial, Atmospheric, and Oceanic Sciences, 30(3),351-366. (IF:1.00)
34. Ci-Jian Yang*, Jiun-Chuan Lin, Yuan-Chang Cheng (2016).The Process and Mechanism of Rill development on Mudstone slope – a case study in Taiwan.。Journal of Geographical Science, 81, 27-42.
35. Ci-Jian Yang*, Jiun-Chuan Lin, Yuan-Chang Cheng (2015). Application of Terrestrial LiDAR on Mudstone Regolith Erosion. Journal of Chinese Soil and Water Conservation, 46(3), 150-157.

研究計畫

學術獎勵

2026       教學優良教師

2026       優良論文獎

2025        Annual Meeting of The Geography Society of China Located in Taipei

2025        K-INET Joint Research Program (international)

2024        K-INET Joint Research Program (international)

2024        國立臺灣大學地理環境資源學系拔尖紮根發展基金獎助

2020        Vei-Chow Juan thesis award.

2019        Taiwan Geosciences Assembly.

2018        Annual Meeting of Geological and Geophysical Society.

2015        Chinese Soil and Water Conservation Society.

2014        Annual Meeting of Geography Society of China.

2014        Department of Geography, National Taiwan University.