教育背景：
1、2008.09–2013.07：中科院土壤所，植物营养学，博士
2、2004.09–2008.06：山东农业大学，农学专业，学士
工作经历：
1、2023.07-至 今：南京林业大学 林草学院、水土保持学院，教授，博士生导师
2、2013.09-2023.06：南京林业大学 分析测试中心/林学院，副教授，硕士生导师
研究方向：
1、土壤氮养分流动特征及其环境效应
2、农、林、草及其复合生态系统碳汇能力提升技术与理论
3、生物质炭施用对与土壤氮转化与环境排放的影响
4、土壤侵蚀与土壤肥力
5、农林业面源污染规律监测与防治等
招生专业：
1、博士：学术博士（水土保持与荒漠化防治，091000）、专业博士（林业095400）
2、硕士：学术硕士（水土保持与荒漠化防治，091000）、专业硕士（林业095400，方向05）
指导学生主持省科创项目共5项，获国家奖学金7人次，优秀毕业生6人次，获校长特别奖学金1人次（全校10人/年）
主持（负责人）：
1、江苏省自然科学基金（面上），2024.09‒2027.08；
2、农业农村部盐碱土改良与利用（滨海盐碱地）重点实验室开放课题，2025.05‒2027.04。
近2年主要发文如下：
[1] Liu Chang, Huang Wang, ..., Sun Haijun*. 2025. Effects of biochar- and hydrochar-amended organic fertilizer on crop production, NH3 loss, and fertility of coastal saline-alkali soil. Plants-Basel, 14(23), 3616.
[2] Liu Yifei, Chen Yudong*, ..., Sun Haijun*. 2025. The optimal cyanobacterial sludge incorporation balances nutrient retention and NH3 emission reduction during composting with chicken manure and wheat straw. Agronomy-Basel, 15(10), 2429.
[3] 王晓盼, 王昌昆*, 孙海军, 等. 2025. 基于随机森林的黑土地尺度耕地土壤容重传递函数构建. 土壤学报, 62(4), 970-982.
[4] 刘佳乐, 陈梓蕊, ..., 孙海军*. 2025. 土壤剖面养分特征与小麦产量对生物质炭施用的响应. 土壤, 57(2), 275-281.
[5] Liu Chang, Yin Chengcheng, ..., Sun Haijun*. 2025. Effects of surface herbs on the growth of Populus L. cutting seedling, soil properties and ammonia volatilization, Phyton-International Journal of Experimental Botany, 94(3), 695-706.
[6] Ma Meng, Chen Yudong*, ..., Sun Haijun*. 2025. Effects of hydrochar incorporation on the nitrogen leaching flus pattern and load in rice paddy soil and crop production. Plants-Basel, 14, 455.
[7] Wu Si, Jeyakumar Paramsothy, ..., Sun Haijun*, et al. 2025. How does forest fine root litter affect the agricultural soil NH3 and N2O losses? Journal of Environmental Management, 374, 124099.
[8] Feng Yuanyuan†, Sun Haijun†, Chen Sen, et al. 2025. Aerobic composting with hydrothermal carbonization aqueous phase conditioning: Stabilized active gaseous nitrogen emissions. Journal of Hazardous Materials, 486, 137021.
[9] Chen Zirui, Liu Jiale, Sun Haijun*. 2024. Effects of forest types on soil available nutrients and carbon contents in coastal areas, China. Phyton-International Journal of Experimental Botany, 93(10): 2557‒2569.
[10] Huang Wang, Sun Xiaolong, Sun Haijun*, et al. 2024. Effects of biochar and wood vinegar co-application on composting ammonia and nitrous oxide losses and fertility. Bioresource Technology, 412: 131388.
[11] Wang Xiaopan, Sun Haijun, et al. 2024. Predicting the soil bulk density using a new spectral PTF based on intact samples. Geoderma, 449: 117005.
[12] Huang Wang†, Sun Haijun†, et al. 2024. Co-amendment of dicyandiamide with waste carbonization products into composting: Enhanced fertility, reduced gas emission and increased economic benefits. Journal of Cleaner Production, 471: 143379.
[13] Wu Si†, Lu Haiying†, ,..., Sun Haijun*. 2024. Microplastic had no effect on rice yield and gaseous N emission from and infertile soil with high inorganic N inputs. Plants-Basel, 13: 1279.
[14] Liu Jiale,..., Sun Haijun*, et al. 2024. Interaction of Biochar Addition and Nitrogen Fertilizers on Wheat Production and Nutrient Status in Soil Profiles. Plants-Basel, 13: 614.
