文献类型： 外文期刊

作者： Wang, Jing ¹ ; Uwiragiye, Yves ² ; Cao, Miaomiao ² ; Chen, Meiqi ² ; Fallah, Nyumah ² ; Huang, Yuanyuan . ⁴ ; Huang, Yuanyuan ¹ ; Cheng, Yi ² ; Cai, Zucong ² ; Xu, Minggang ¹⁰ ; Chang, Scott X. ¹² ; Mueller, Christoph ¹³ ;

作者机构： 1.Nanjing Forestry Univ, Coll Forestry, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Peoples R China

2.Nanjing Normal Univ, Sch Geog, Nanjing 210023, Peoples R China

3.Univ Technol & Arts Byumba, Fac Agr Environm Management & Renewable Energy, Dept Agr, Byumba, Rwanda

4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China

5.German Ctr Integrat Biodivers Res iDiv, D-04103 Leipzig, Germany

6.Univ Leipzig, Inst Biol Expt Interact Ecol, D-04103 Leipzig, Germany

7.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Peoples R China

8.Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing 210023, Peoples R China

9.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang 330200, Peoples R China

10.Shanxi Agr Univ, Engineer & Technol Acad Ecol & Environm, Shanxi Prov Key Lab Soil Environm & Nutrient Resou, Taiyuan 030031, Peoples R China

11.Chinese Acad Agr Sci, State Key Lab Efficient Utilizat Arid & Semiarid A, Key Lab Arable Land Qual Monitoring & Evaluat, Inst Agr Resources & Reg Planning,Minist Agr & Rur, Beijing 100081, Peoples R China

12.Univ Alberta, Dept Renewable Resources, Edmonton, AB T6G 2R3, Canada

13.Justus Liebig Univ Giessen, Inst Plant Ecol, D-35392 Giessen, Germany

14.Univ Coll Dublin, Sch Biol & Environm Sci, Dublin, Ireland

15.Univ Coll Dublin, Earth Inst, Dublin, Ireland

16.Justus Liebig Univ, Liebig Ctr Agroecol & Climate Impact Res, D-35390 Giessen, Germany

关键词： nitrogen supply; land use change and nitrogen loss

期刊名称：ENVIRONMENTAL SCIENCE & TECHNOLOGY （ 影响因子：11.3； 五年影响因子：12.4 ）

ISSN： 0013-936X

年卷期： 2025 年 59 卷 33 期

页码：

收录情况： SCI

摘要： Anthropogenic activities, particularly land use change and management practices, alter the global nitrogen (N) cycle. As a central part of the global N cycle, soil N supply from net N mineralization (NNM) and net nitrification (NN) contributes to over 50% of crop N uptake. However, how global land use changes impact soil N supply and potential N loss remains elusive. By compiling a global data set of 1,782 paired observations from 185 publications, we show that land use conversion from natural to managed ecosystems significantly reduced NNM by 7.5% (-11.5, -2.8%) and increased NN by 150% (86, 194%), indicating decreasing N availability while increasing potential N loss through denitrification and nitrate leaching. In contrast, reversing managed to natural ecosystems significantly increased NNM by 20% (9.7, 25.4%) and decreased NN by 89% (-125, -46%), indicating increasing N availability while decreasing potential N loss. Structural equation modeling revealed that land use change induced changes in soil properties, including organic matter content, bulk density, microbial biomass and pH, and anthropogenic activities, including application of ammonium-based fertilizers and manure, were the most important factors regulating NNM and NN. The land use change effect was the strongest in tropical and subtropical regions, where NNM was negatively affected and NN positively affected by land use change. Our findings indicate that increasing soil organic matter content and enhancing soil structural development post land use change can boost soil N supply and reduce the risk for N loss.