LU Caiyan, female, born in July 1976, Inner Mongolia, Doctoral supervisor, Researcher. Her primary research focuses on the migration, transformation, and environmental impacts of nutrients - particularly carbon and nitrogen - within agricultural ecosystems. Emphasizing efficient material cycling within these systems, her work centers on scientific research that supports regional economic development. Through theoretical exploration, mechanistic regulation, and technological innovation, she has conducted extensive research on enhancing soil fertility in dryland black soils of Northeast China, improving nitrogen-use efficiency, and ensuring stable and high crop yields. She has developed practical, conservation tillage techniques for rapidly improving cultivated land fertility and optimizing nitrogen use. To date, she has published over 90 research papers, including 28 SCI-indexed articles as first or corresponding author in international journals such as Agriculture, Ecosystems & Environment and Geoderma. She holds one authorized patent as the principal inventor and co-edited a monograph as associate editor. She serves as a reviewer for several academic journals, including Chinese Journal of Ecology, Journal of Plant Nutrition and Fertilizers, Agriculture, Ecosystems & Environment, Soil and Tillage Research, and Catena.

2004.09-2008.06 Ph.D. degree in Soil Science, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. 2000.09-2003.06 M.S. degree in Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. 1996.09-2000.06 B.S. degree in Ecology, Inner Mongolia University, Inner Mongolia, China.

2018-present Professor, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. 2010-2018 Associate Professor, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. 2006-2010 Assistant Professor, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. 2003-2006 Research Associate, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.

Agroecology; Carbon and Nitrogen Cycling and Transformation; Stable Isotope Tracing

1. 2022–2025: Project Leader, Accumulation, Leaching and Control Mechanism of Nitrate Nitrogen in Black Soil No-till Farmland of Northeast China, General Project of the National Natural Science Foundation of China. 2. 2021–2026: Project Leader, Multi-Factor Three-Dimensional Monitoring and Model Applications Evaluation in the Shenyang Demonstration Zone, Sub-project of the Strategic Priority Research Program A, Chinese Academy of Sciences. 3. 2021–2026: Sub-Project Leader, Three-Dimensional Monitoring and Early Warning System Demonstration for Cultivated Land Quality of Degraded Brown Soil in the Liaohe Plain, Sub-project of the National Key Research and Development Program, Ministry of Science and Technology, China. 4. 2022–2027: Sub-Project Leader, Biochar Regulation Technology for Suppressing Soil Organic Matter Decomposition in Black Soil, Sub-project of the National Key Research and Development Program, Ministry of Science and Technology, China. 5. 2022–2024: Project Leader, Monitoring and Evaluation of Cultivated Land Quality in Shenyang's Black Soil Regions, Science and Technology Program of Shenyang, Shenyang Science and Technology Bureau. 6. 2020–2022: Project Leader, Mechanisms of Organic Matter Reservoir Construction and Soil Fertility Enhancement in Black Soil Farmland of Northeast China, Liaoning Provincial Science and Technology Plan Project, Science and Technology Department of Liaoning Province.

1. Lei Yuan#, Xin Chen#, Jingchao Jia, Huaihai Chen, Yi Shi, Jian Ma, Chao Liang, Yan Liu, Hongtu Xie, Hongbo He, Xudong Zhang, Xiuyuan Peng, Caiyan Lu*. Stover mulching and inhibitor application maintain crop yield and decrease fertilizer N input and losses in no-till cropping systems in Northeast China. Agriculture, Ecosystems & Environment, 2021, 312: 107360. 2. Huaihai Chen#, Yan Liu#, Liping Lü, Lei Yuan, Jingchao Jia, Xin Chen, Jian Ma, Jinxi Zhao, Chao Liang, Hongtu Xie, Hongbo He, Xudong Zhang, Caiyan Lu*, Guangyu Chi*. Effects of no-tillage and stover mulching on the transformation and utilization of chemical fertilizer N in Northeast China. Soil & Tillage Research, 2021, 213: 105131. 3. Lei Yuan#, Yan Liu#, Hongbo He, Tongbin Zhu, Xin Chen, Xudong Zhang, Chao Liang, Hongtu Xie, Jinbo Zhang, Christoph Müller, Xu Zhao, Xiaoyuan Yan, Caiyan Lu*. Effects of long-term no-tillage and maize straw mulching on gross nitrogen transformations in Mollisols of Northeast China. Geoderma, 2022, 428: 116194. 4. Huaihai Chen*, Kayan Ma, Caiyan Lu*, Qi Fu, Yingbo Qiu, Jiayi Zhao, Yu Huang, Yuchun Yang, Christopher W. Schadt, Hao Chen. Functional redundancy in soil microbial community based on metagenomics across the globe. Frontiers in Microbiology, 2022, 13: 878978. 5. Jiayi Zhao#, Lei Yuan#, Huaihai Chen*, Xin Chen, Hongbo He, Xudong Zhang, Hongtu Xie, Caiyan Lu*. Reduction of NH3 Emissions from Urea by Long-Term No-Tillage and Stover Mulching with Inhibitors: An Isotopic Field Study in Northeast China. Agronomy, 2023, 13: 2235. 6. Lei Yuan#, Yanyu Hu#, Miaoyin Yang, Ningbo Lei, Huaihai Chen*, Jian Ma, Xin Chen, Hongtu Xie, Hongbo He, Xudong Zhang, Caiyan Lu*. Straw retention and inhibitor application reduce the leaching risk of mineral N in no‑tillage systems of Northeast China. Plant and Soil, 2024, 500:431-443. 7. Lei Yuan#, Jie Li#, Ningbo Lei, Hongtu Xie, Caiyan Lu*, Xin Chen, Sicong Ma, Jinbo Zhang, Christoph Müller, Hongbo He*, Xudong Zhang. Stover mulching in no-tillage farming reduces ammonia volatilization in the Mollisol of Northeast China: Insights from gross N transformation dynamics. Soil & Tillage Research, 2024, 240: 106068. 8. Yanyu Hu, Jiaxin Li*, Huaihai Chen, Lei Yuan, Hang Jing, Xin Chen, Hongtu Xie, Hongbo He, Xudong Zhang, Peng Wang, Caiyan Lu*. No-tillage with straw mulching restrained the vertical transportation of chemical fertilizer N and reduced its leaching loss in Northeast China. Agriculture, Ecosystems & Environment, 2024, 367: 108996. 9. Lei Yuan#, Jie Li#, Ningbo Lei, Caiyan Lu*, Xin Chen, Hongtu Xie, Jinbo Zhang, Christoph Müller, Hongbo He*, Xudong Zhang. High leaching potential combined with a low leaching amount of fertilizer-derived nitrate in conservation tillage cropland of Northeast China. Science of the Total Environment, 2024, 915: 170020. 10. Jinxi Zhao#, Yanyu Hu#, Wanjing Gao, Huaihai Chen*, Miaoyin Yang, Zhi Quan, Yunting Fang, Xin Chen, Hongtu Xie, Hongbo He, Xudong Zhang, Caiyan Lu*. Effects of long-term conservation tillage on N2 and N2O emission rates and N2O emission microbial pathways in Mollisols. Science of the Total Environment, 2024, 908:168440. 11. Jinxi Zhao#, Yanyu Hu#, Jing Wang, Wanjing Gao, Deyao Liu, Miaoyin Yang, Xin Chen, Hongtu Xie, Hongbo He, Xudong Zhang, Caiyan Lu*. Greenhouse gas emissions from the growing season are regulated by precipitation events in conservation tillage farmland ecosystems of Northeast China. Science of the Total Environment, 2024, 948: 174716. 12. Lei Yuan#, Yan Liu#, Yanyu Hu*, Hongbo He, Xudong Zhang, Xin Chen, Hongtu Xie, Jinbo Zhang, Christoph Müller, Caiyan Lu*. Enhanced clay mineral-mediated ammonium fixation-release turnover under no-tillage with straw retention: An effective buffering mechanism for nitrogen retention and supply in agroecosystems of Northeast China. Soil & Tillage Research, 2025, 252: 106610. 13. Xueying Wang#, Jiaqi Chen#, Lu Yuan, Huaihai Chen*, Lei Yuan, Yanyu Hu, Xin Chen, Hongtu Xie, Hongbo He, Xudong Zhang, Caiyan Lu*. Enhancing fertilizer nitrogen environmental safety and soil sustainability: The role of no-tillage with straw mulching in maize production. Agriculture, Ecosystems & Environment, 2025, 382: 109480. 14. Lei Yuan, Xin Chen, Liping Lv, Jian Ma, Yi Shi, Jingchao Jia, Hongtu Xie, Xudong Zhang, Hongbo He, Chao Liang, Caiyan Lu. Nitrogen leaching risks and control mechanisms of spring maize fields in black soil. Chinese Journal of Eco-Agriculture, 2021, 29(1): 102-112. 15. He Miao, Lei Yuan, Miaoyin Yang, Yanyu Hu, Xin Chen, Hongbo He, Xudong Zhang, Hongtu Xie, Caiyan Lu. Mechanisms of conservation tillage on nitrogen-fertilizer reduction and maize grain improvement in Mollisols of Northeast China: Insights of from a 15N tracing study. Chinese Journal of Applied Ecology, 2023, 34(4): 876-882.