文献类型： 外文期刊

作者： Liu, Boheng ¹ ; Zhang, Yongli ² ; Yi, Xiaoyun ¹ ; Zheng, Haitao ³ ; Ni, Kang ¹ ; Ma, Qingxu ⁴ ; Cai, Yanjiang ⁵ ; Ma, Lifeng ¹ ; Shi, Yuanzhi ¹ ; Yang, Xiangde ¹ ; Ruan, Jianyun ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Tea Res Inst, Minist Agr & Rural Affairs, Key Lab Biol Genet & Breeding Special Econ Anim &, Hangzhou 310008, Peoples R China

2.Anhui Acad Agr Sci, Tea Res Inst, Hefei 230001, Peoples R China

3.Rizhao Tea Res Inst Shandong, Rizhao 276800, Shandong, Peoples R China

4.Zhejiang Univ, Coll Environm & Resource Sci, Zhejiang Prov Key Lab Agr Resources & Environm, Hangzhou 310058, Peoples R China

5.Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Hangzhou 311300, Peoples R China

关键词： Organic substitution; Microbial metabolic limitation; Soil quality; Ecosystem multifunctionality; Tea plantation

期刊名称：AGRICULTURE ECOSYSTEMS & ENVIRONMENT （ 影响因子：6.4； 五年影响因子：6.8 ）

ISSN： 0167-8809

年卷期： 2025 年 378 卷

页码：

收录情况： SCI

摘要： Substituting chemical fertilizer with organic alternatives has been proven to improve soil fertility and crop yield and mitigate adverse environmental effects. However, the impact of different organic materials, such as animalsourced organic fertilizer (AOF) and plant-sourced organic fertilizer (POF), on soil quality index (SQI) and ecosystem multifunctionality (EMF) in perennial systems like tea plantations remains unclear. This study evaluated the impact of partially substituting (30 %) chemical fertilizer with AOF (SM, sheep manure; PM, pig manure; CM, cow manure) and POF (SC, soybean cake) on soil properties, enzyme activity, enzyme stoichiometry, SQI, and EMF in a tea plantation of China. Partial substitution with AOF improved soil pH, total C content, and (3-1,4-glucosidase, (3-1,4-N-acetylglucosaminidase, L-leucine aminopeptidase, and acid phosphatase activities. In contrast, chemical fertilizer alone (CF) and POF substitution reduced these parameters. Compared with the control, CF, and POF, AOF substitution treatments effectively alleviated soil microbial C limitation but increased N limitation. Additionally, all fertilizer treatments enhanced the SQI and EMF of the tea plantation. Among the organic treatments, partial substitution with AOF resulted in the maximum increase in SQI (60 %- 134 %) and EMF (157 %-177 %) compared with no fertilization, while POF substitution resulted in a comparatively lower improvement (53 % in SQI and 50 % in EMF). Random forest modeling identified five soil variables and eight enzyme variables as key contributors to the differences in EMF under partial organic substitution. Partial least squares path modeling further revealed that the changes in enzyme properties and microbial metabolic limitations directly influenced EMF in these treatments. Thus, the study proves that partially substituting chemical fertilizers with organic fertilizers, especially composted manure, enhances the soil quality and ecosystem functionality of tea plantations. These findings provide a scientific basis for developing effective soil management strategies to improve crop production sustainably.