文献类型： 外文期刊
作者： Zou, Yukun 1 ; Shan, Ying 1 ; Yue, Zhengfu 1 ; Gioacchini, Paola 2 ; Montecchio, Daniela 2 ; Gaggia, Francesca 2 ; Alberoni, Daniele 2 ; Baffoni, Loredana 2 ; Zhang, Qiaoyan 1 ; Xiong, Peng 4 ; Marzadori, Claudio 2 ; Di Gioia, Diana 2 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Minist Agr & Rural Affairs, Environm & Plant Protect Inst, Hainan Key Lab Trop Ecocircular Agr,Key Lab Low Ca, Haikou 571101, Peoples R China
2.Alma Mater Studiorum Univ Bologna, Dept Agr & Food Sci DISTAL, Viale Fanin 44, I-40127 Bologna, Italy
3.Chinese Acad Trop Agr Sci, Hainan Danzhou Trop Agroecosyst Natl Observat & Re, Danzhou 571737, Peoples R China
4.Jiangxi Agr Univ, Minist Agr & Rural Affairs China, Coll Land Resource & Environm, Key Lab Agr Resources & Ecol Poyang Lake Watershed, Nanchang 330045, Peoples R China
关键词： soil respiration; bacteria; fungi; soil texture; microbial community
期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）
ISSN：
年卷期： 2024 年 14 卷 11 期
页码：
收录情况： SCI
摘要： Soil respiration is a critical process that regulates key ecosystem functions such as climate control, nutrient cycling, and plant productivity. Soil texture, nutrient availability, and microbial communities can all influence soil respiration, yet our understanding of their relative importance remains limited. This study aimed to investigate how different factors-like soil texture, nutrient additions, and microbial communities-contribute to soil respiration and define their specific roles in its variability. Using a microcosm experiment with various fertilizers and two soil types (Navarra, a silty clay soil, and Saponi, a sandy soil), we measured changes in both biotic and abiotic factors. A multiple linear regression analysis revealed that, among other biotic and abiotic factors, soil clay content, soluble nitrogen levels, bacterial abundance, and alpha-diversity significantly impacted soil respiration, together accounting for over 60% of its total variance. Structural equation modeling indicated that microbial communities made the greatest contribution to respiration at 30.84%, followed by soil texture at 19.63%. Overall, biotic factors were found to play a more significant role in driving soil respiration rates compared to abiotic factors, with edaphic properties having a greater influence than fertilizer additions.
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