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Mixing Rubber Plantations with Native Tree (Mytilaria laosensis) Enhances Soil Environmental Quality

文献类型： 外文期刊

作者： Qi, Dongling 1 ; Wu, Zhixiang 1 ; Lan, Guoyu 1 ; Yang, Chuan 1 ; Li, Shaobin 2 ; Zhang, Yingying 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Rubber Res, Danzhou 571737, Peoples R China

2.China Ind Technol Syst Construct Nat Rubber, Wenchang Expt Stn, Wenchang 571347, Peoples R China

关键词： Hevea brasiliensis; Polyculture system; Soil nutrient; Soil enzymes; Agroforestry system

期刊名称：JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：3.1； 五年影响因子：3.6 ）

ISSN： 0718-9508

年卷期： 2025 年 25 卷 2 期

页码：

收录情况： SCI

摘要： Rubber tree [Hevea brasiliensis (Willd. ex A. Juss.) M & uuml;ll. Arg.] is a widely commercialized cash crop globally. However, maintaining sustainability and avoiding soil degradation in long-term monoculture rubber plantations remains a challenge. Rubber agroforestry is a land-use system that integrates rubber trees with other crops, offers a potential solution for greater sustainability compared to monocultures. The purpose is to explore the changes in soil properties in a rubber mixed system with native tree species Mytilaria laosensis. This study investigates the effects of two planting patterns namely, rubber monoculture, rubber-M. laosensis mixing system on soil chemical and physical, microflora, and enzymes activities using laboratory analysis of field soil samples. Our findings revealed that mixing native tree species into rubber plantations significantly increased soil porosity and reduced soil bulk density. Additionally, soil organic carbon, ammonium nitrogen, available phosphorus, available potassium, pH, soil sucrase, cellulase and acid phosphatase levels were higher in the rubber-M. laosensis mixing system compared to rubber monoculture system. Furthermore, mixing rubber plantations with native tree (Mytilaria laosensis) boosted bacteria abundance, which rubber-M. laosensis mixing system exhibiting a 139.38% higher bacterial count than rubber monoculture. Mixing optimized soil properties and fostered a healthier soil environment. These results expand our comprehension of the ways in which mixed tree cropping can elevate soil quality. These findings offer compelling evidence for improved soil management strategies and sustainable rubber plantation practices, with the potential for the application of tree crops mixing with plantations in tropical regions worldwide.

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