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Enhancing soil carbon sequestration in jasmine gardens: Differential effects of straw and biochar on mineral-associated and particulate organic carbon

文献类型：期刊论文

作者Ren, Xiaoying2; Yang, Wenwen3; Ye, Liping3; Lin, Siyan3; Li, Yuan4; Wang, Weiqi2; Sardans, Jordi1,5; Chen, Junma2; Chen, Shiyu2; Yu, Siqi2
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2025-08-01
卷号389页码:13
关键词Straw return Biochar amendment Mineral-associated organic carbon Particulate organic carbon Jasminum sambac
ISSN号0301-4797
DOI10.1016/j.jenvman.2025.126282
通讯作者Wang, Weiqi(wangweiqi@fjnu.edu.cn)
英文摘要Reducing chemical fertilizer use while enhancing soil organic carbon (SOC) stability, through straw return and biochar amendment presents an integrated strategy for climate change mitigation and sustainable agriculture. However, the effectiveness of their carbon (C) sequestration potential and organic C pool stability is influenced by varing environmental conditions. This study investigated the effects of straw and biochar on C sequestration potential and SOC pool stability in jasmine garden soil in Fuzhou, China. Six treatments were compared: No Fertilizer (Control), Fertilizer (F) (NPK fertilizer), No Fertilizer + Straw (NF + S), Fertilizer + Straw (F + S), No Fertilizer + Biochar (NF + B), and Fertilizer + Biochar (F + B). Fertilizer (compound NPK 16:16:16) was applied at a total rate of 260 kgha-1, split into two applications of 130 kgha-1 each. Straw and biochar were both applied at a rate of 8000 kgha-1 each. We measured mineral-associated organic C (MAOC), particulate organic C (POC), their binding mechanisms, and key physicochemical properties. The results showed that, compared to the control, NF + B significantly increased MAOC (13.29 %; p < 0.05). Biochar application (F + B and NF + B) significantly increased POC (150.57 %-211.34 %) and calcium-bound organic C (Ca-SOC) (22.22 %-31.94 %; p < 0.05), with more pronounced effects in the absence of fertilizer. Both straw and biochar applications significantly improved soil pH (2.74 %-15.40 %) and decreased soil bulk density (BD) (10.08 %-26.36 %; p < 0.05), while straw significantly increased electrical conductivity (EC) (17.91 %-35.82 %; p < 0.05). Furthermore, both straw and biochar amendments significantly increased SOC (34.66 %-57.18 %), easily oxidizable organic C (EOC) (23.35 %-48.58 %), and dissolved organic C (DOC) (15.98 %-93.00 %; p < 0.05). Redundancy analysis (RDA) showed that pH (70.4 % variance explained) and SOC (7.5 % variance explained) were the dominant drivers of SOC pool stability. These findings suggest that biochar amendment, particularly without chemical fertilizers, represents a promising strategy for enhancing soil C sequestration and stability in jasmine gardens. This approach holds significant potential for sustainable agricultural practices and climate change mitigation in subtropical regions.
WOS关键词LAND-USE ; MATTER ; STORAGE ; STABILIZATION ; MECHANISMS ; FRACTIONS ; NITROGEN ; STOCKS ; RICE ; GAS
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001519095600001
资助机构Fuzhou Agriculture and Rural Affairs Bureau
源URL[http://ir.yic.ac.cn/handle/133337/41157]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Wang, Weiqi
作者单位1.CREAF, Cerdanyola Del Valles 08193, Catalonia, Spain
2.Fujian Normal Univ, Key Lab Ecol Geog Proc Humid Subtrop, Minist Educ, Fuzhou 350117, Peoples R China
3.Fuzhou Econ Crops Tech Stn, Fuzhou 350001, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc,YICCAS, Yantai 264003, Peoples R China
5.CREAF CSIC UAB, Global Ecol Unit, CSIC, Barcelona 08193, Catalonia, Spain
6.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Key Lab Desert Plant Roots Ecol & Vegetat, Urumqi 830011, Peoples R China
7.Cele Natl Stn Observat & Res Desert Grassland Ecos, Cele 848300, Peoples R China
推荐引用方式
GB/T 7714		 Ren, Xiaoying,Yang, Wenwen,Ye, Liping,et al. Enhancing soil carbon sequestration in jasmine gardens: Differential effects of straw and biochar on mineral-associated and particulate organic carbon[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2025,389:13.
APA Ren, Xiaoying.,Yang, Wenwen.,Ye, Liping.,Lin, Siyan.,Li, Yuan.,...&Penuelas, Josep.(2025).Enhancing soil carbon sequestration in jasmine gardens: Differential effects of straw and biochar on mineral-associated and particulate organic carbon.JOURNAL OF ENVIRONMENTAL MANAGEMENT,389,13.
MLA Ren, Xiaoying,et al."Enhancing soil carbon sequestration in jasmine gardens: Differential effects of straw and biochar on mineral-associated and particulate organic carbon".JOURNAL OF ENVIRONMENTAL MANAGEMENT 389(2025):13.

入库方式： OAI收割

来源：烟台海岸带研究所

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