HU Yanyu, female, born in October 1992 in Chifeng, Inner Mongolia. Ph.D., Associate Professor. Her primary research focuses on soil–plant carbon and nitrogen nutrient cycling processes and their underlying drivers. Using in 15N field tracing techniques, she accurately quantify the fate of fertilizer nitrogen in no-till black soil croplands of Northeast China within the soil–plant–environment system. Her work has elucidated how agricultural management practices influence fertilizer nitrogen distribution and identified effective pathways for mitigating nitrogen leaching and gaseous losses. These findings provide critical scientific support for national priorities including efficient nitrogen cycling, food security, adaptive management of agricultural resources, and high-quality sustainable development. She has published 10 SCI-indexed papers as first author or corresponding author (including co-first or co-corresponding author) in leading journals such as Agriculture, Ecosystems and Environment, Soil and Tillage Research, Journal of Plant Ecology, Plant and Soil, and the Chinese Journal of Ecology, as well as 2 papers in core Chinese-language journals.

2018.09-2022.01 Ph.D. degree in Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. 2015.09-2018.06 M.S. degree in Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China. 2011.09-2015.06 B.S. degree in Environmental Science, Dalian Minzu University, Dalian, 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.

Nutrient Cycling in Agricultural Ecosystems; Transformation and Transport of Soil Nitrogen

1、Awarded the “Model Outstanding Student” title by the University of Chinese Academy of Sciences in 2021; 2、Awarded the National Scholarship for Doctoral Students in 2020; 3、Awarded the “Outstanding Student Leader” title by the University of Chinese Academy of Sciences in 2019; 4、Awarded the National Scholarship for Master’s Students in 2017.

1、2024–2027: Sub-Project Leader, Key Technology Development for Fertilizer and Water Conservation with Straw Coverage in Reduced/No-Till Farming, Sub-project of the National Key Research and Development Program, Ministry of Science and Technology, China. 2、2024–2027: Project Leader, Biological and Abiotic Multivariate Regulation Mechanisms of Nitrogen Cycling in Northern Grassland Soils, Green Field Excellent Young Scientist Program, Shenyang Institute of Applied Ecology, Chinese Academy of Sciences (CAS). 3、2023–2025: Project Leader, Mechanisms of Increased Nitrogen Input and Mowing on Nitrogen Transformation Processes in Meadow Steppe Soils, Youth Fund Project of the National Natural Science Foundation of China. 4、2022–2024: Project Leader, Mechanisms of Nitrogen Input and Mowing on Key Nitrogen Transformation Processes in Northern Meadow Steppe Soils, CAS Special Research Assistant Fund Program, Chinese Academy of Sciences. 5、2023–2025: Project Leader, Biochar-Based Technology to Control Endogenous Decomposition of Soil Organic Matter, General Project of the Liaoning Provincial Natural Science Foundation Joint Fund.

1、Hu Yanyu, Lu Caiyan, Zhang Zhiwei, Yang Guojiao, Chen Xin, Lü Xiaotao*. 2025. Nitrogen fertilization stimulated grassland nitrogen transformation by increasing substrate quantity and ammonia-oxidizing bacteria abundance. Plant and Soil. https://doi.org/10.1007/s11104-025-08066-2. 2、Yuan Lei1, Liu Yan1, Hu Yanyu*, He Hongbo, Zhang Xudong, Chen Xin, Xie Hongtu, Zhang Jinbo, Müller Christoph, Lu Caiyan*. 2025. 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, 252:106610 3、Hu Yanyu, Li Jiaxin*, Chen Huaihai, Yuan Lei, Jing Hang, Chen Xin, Xie Hongtu, He Hongbo, Zhang Xudong, Wang Peng, Lu Caiyan*. 2024. No-tillage with straw mulching restrained the vertical transportation of chemical fertilizer N and reduced its leaching loss in Northeast China. Agriculture, Ecosystems and Environment, 367: 108996. 4、Hu Yanyu, Sistla Seeta, Wei Haiwei, Zhang Zhiwei, Hou Shuangli, Yang Junjie, Wang Zhengwen, Wang Junfeng, Lü Xiaotao*. 2020. Legacy effects of nitrogen deposition on plant stoichiometry in a temperate grassland. Plant and Soil, 446: 503-513. 5、Hu Yanyu, Wei Haiwei, Zhang Zhiwei, Hou Shuangli, Yang Junjie, Wang Junfeng, Lü Xiaotao*. 2020. Changes of plant community composition instead of soil nutrient status drive the legacy effects of historical nitrogen deposition on plant community N:P stoichiometry. Plant and Soil, 453: 503-513. 6、Hu Yanyu, Zhang Zhiwei, Hou Shuangli, Yang Junjie, Lü Xiaotao*. 2021. Annual mowing mitigates the negative legacy effects of N enrichment on grassland nutrient use efficiency. Journal of Plant Ecology, 14: 959-969. 7、Hu Yanyu, Zhang Zhiwei, Yang Guojiao, Ding Cong, Lü Xiaotao*. 2021. Increases in substrate availability and decreases in soil pH drive the positive effects of nitrogen addition on soil net nitrogen mineralization in a temperate meadow steppe. Pedobiologia, 89: 150756. 8、Yuan Lei1, Hu Yanyu1, Yang Miaoyin, Lei Ningbo, Chen Huaihai*, Ma Jian, Chen Xin, Xie Hongtu, He Hongbo, Zhang Xudong, Lu Caiyan*. 2024. Straw retention and inhibitor application reduce the leaching risk of mineral N in no-tillage systems of Northeast China. Plant and Soil, 500: 431-443. 9、Zhao Jinxi, Hu Yanyu, Gao Wanjing, Chen Huaihai*, Yang Miaoyin, Quan Zhi, Fang Yunting, Chen Xin, Xie Hongtu, He Hongbo, Zhang Xudong, Lu Caiyan*. 2024. Effects of long-term conservation tillage on N2 and N2O emission rates and N2O emission microbial pathways in Mollisols. Science of the Total Environment, 908: 168440. 10、Zhao Jinxi, Hu Yanyu, Wang Jing, Gao Wanjing, Liu Deyao, Yang Miaoyin, Chen Xin, Xie Hongtu, He Hongbo, Zhang Xudong, Lu Caiyan*. 2024. 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, 948: 174716. 11、牛明芬, 徐明荟, 荆泓翔, 缪弘志, 宋俏博, 马建, 陈欣, 胡艳宇*．2025. 氮添加和刈割对内蒙古草甸草原土壤交换性盐基离子及土壤酸缓冲能力的影响．生态学杂志. https://link.cnki.net/urlid/21.1148.Q.20250815.1345.004 12、胡艳宇, 乌云娜*, 霍光伟, 宋彦涛, 王晓光, 张凤杰. 2018. 不同放牧强度下羊草草原群落斑块植被-土壤特征. 生态学杂志 37: 9-16.