文献类型：期刊文献

英文题名：Microbial-driven nitrogen retention in optimized shelter forests: A solution for agricultural non-point source pollution control

作者：Wang, Rongjia[1,2,3] Jin, Xiaoai[1] Zhang, Handan[4] Wang, Shufeng[2] Zhang, Jianfeng[2] Cai, Chunju[5] Xu, Haidong[6]

第一作者：Wang, Rongjia

通信作者：Zhang, JF[1]

机构：[1]Zhejiang A&F Univ, Coll Forestry & Biotechnol, Hangzhou 311300, Peoples R China;[2]Chinese Acad Forestry, Inst Subtrop Forestry, Hangzhou 311400, Zhejiang, Peoples R China;[3]Zhejiang A&F Univ, Zhejiang Prov Key Lab Forest Aromat Plants Based H, Hangzhou 311300, Peoples R China;[4]Zhejiang Univ Water Resources & Elect Power, Hangzhou 310018, Peoples R China;[5]Int Ctr Bamboo & Rattan, Sanya Res Base, Sanya 572000, Peoples R China;[6]Shandong Univ Aeronaut, Shandong Key Lab Ecoenvironm Sci Yellow River Delt, Binzhou 256603, Shandong, Peoples R China

年份：2025

卷号：286

外文期刊名：ENVIRONMENTAL RESEARCH

收录：;EI(收录号：20253619107504);Scopus(收录号：2-s2.0-105014823655);WOS:【SCI-EXPANDED(收录号:WOS:001568477000002)】；

基金：This research was supported by the National Natural Science Foundation of China (No. 32401664, 32330065) , Zhejiang A & F University (No. 2022LFR083) , International Centre for Bamboo and Rattan (No. 1632021006) and the Shandong Provincial Natural Science Foundation (No. ZR2023QC070) . Some raw materials in Fig. 8 come from the website. We express our gratitude to all of them. The authors declare that they have no competing interests.

语种：英文

外文关键词：Nitrogen loss; Agricultural non-point source pollution; Moso bamboo stand; Soil microorganism diversity

摘要：Agricultural nonpoint source pollution (NPSP) is a serious environmental problem globally. Soil nitrogen (N) loss can cause eutrophication. Soil microorganisms are the key factor influencing soil N. The possibility of adjusting the microbial community structure to control N loss needs to be elucidated. Accordingly, we conducted an in situ investigation, and performed an ecological structure optimization by transforming pure moso bamboo (Phyl-lostachys edulis) forests into two types of swell-structured water source shelter forests (WWSSFs). The results revealed significant shifts in the microbial community structure of the WWSSFs relative to that of the pure bamboo stand. Furthermore, WWSSFs can reduce the total-N and nitrate-N loss by 62.48 %-71.45 % and 31.78 %-64.61 %, respectively. Partial least squares path modeling showed both direct (-0.2038) and indirect (-0.4603) pathways through which forest structure optimization mitigates N loss, with microbial communities playing a crucial mediating role. A possible way in which microbial communities affect N loss was discovered, i. e., stand structure optimization, followed by Bradyrhizobium (increased, +2.21 %), soil N (increased, +98.36 %), Trichoderma (increased, +1.06 %), soil available phosphorus (increased, +155.64 %), Candidatus Nitrosotalea (decreased,-0.44 %), and soil nitrification (decreased). The decrease in nitrification led to a decrease in soil nitrate-N (main forms of N loss), which in turn reduced soil N loss. This study revealed the mechanisms and effectiveness of WWSSFs in controlling N loss from the perspective of microorganisms and demonstrated that strategically restructuring vegetation to construct WWSSFs greatly mitigates agricultural NPSP by reinforcing biological regulatory mechanisms, offering a scientifically validated strategy for sustainable watershed management.