从单一物种松树林转变为不同的农林模式对土壤肥力,可交换的子和微生物功能的影响
Saif Ullah1, Xiaomei Han1, Rongyan Deng1
1Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, 530004, China; Key Laboratory of National Forestry and Grassland Administration on Cultivation of Fast-Growing Timber in Central South China, College of Forestry, Guangxi University, Nanning, 530004, China.
Journal of environmental management
|October 6, 2024
概括
与单一种植松树林相比,含有药用植物的农林系统显著提高了土壤肥力和营养素的可用性. 集成Curcuma longa的M4模型显示,最有效地增强了土壤特性和微生物活动.
科学领域:
- 农业生态学 农业生态学
- 土壤科学 土壤科学
- 生态生态学 生态生态学
背景情况:
- 农林系统可以改变土壤特性和微生物活动.
- 基于药用植物的农林业对土壤健康的影响尚不清楚.
- 单一栽培系统可能对土壤生态系统的运作没有那么有利.
研究的目的:
- 调查不同的农林模式,包括药用植物对土壤特性和微生物活性的影响.
- 为了比较单一栽培松树林的土壤健康结果与混合物种农林系统.
- 确定最有效的农林模式,以提高土壤肥力和营养循环.
主要方法:
- 研究了单种植Pinus massoniana和四种农林模型 (M1-M4) 与不同的药用植物.
- 分析了土壤特性,包括pH值,总,总有机碳 (TOC) 和碳分数 (POC,DOC,MBC).
- 测量了酶活性 (白氨基酸酶,多氧化酶) 和土壤微生物呼吸 (MRes).
主要成果:
- 模型M4 (Pinus massoniana和Curcuma longa) 显示土壤pH值显著提高,根球中的总含量显著增加.
- 与单一种植相比,农林模型通常增加了可交换的酸盐 (Ca2 +,Mg2 +) 和百分比的和度 (PBS).
- 土壤微生物呼吸 (MRes) 在M2和M4的根球和M1的非根球下降,TOC和MRes之间存在正相关性.
结论:
- 农林系统,特别是M4模型,比单一栽培松树林更有效地提高土壤肥力和营养物质的可用性.
- 将药用植物纳入农林系统是改善土壤生态系统功能的一个有希望的策略.
- 药用植物物种的选择显著影响来自农林实践的土壤健康益处.
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