使用本地树种进行植林的优势是改善退化森林生态系统中的土壤质量
Jialong Qian1, Cuiying Ji1, Jinyu Yang1
1College of Forestry, Hebei Agricultural University, Baoding, 071000, China.
Scientific reports
|August 28, 2024
概括
使用本地树种恢复退化森林显著改善了土壤质量,包括土壤有机碳和总. 异国树种对土壤的改善是微不足道的,这凸显了本地物种在生态恢复中的重要性.
科学领域:
- 土壤科学 土壤科学
- 生态生态学 生态生态学
- 恢复生态学 恢复生态学
背景情况:
- 植被恢复方法在改善土壤质量的有效性方面有所不同.
- 森林-草原-沙漠过渡区是生态恢复的关键区域.
- 了解不同恢复策略下的土壤质量演变对于退化生态系统至关重要.
研究的目的:
- 在过渡区的不同植被恢复方法下分析土壤质量变化.
- 为了比较本地与外来树种和草原恢复在土壤属性的有效性.
- 为在类似的退化土地条件下提供生态恢复策略的参考.
主要方法:
- 系统的网格采样在Saihanba机械化森林农场和Ulan Buh草原建立了固定监测地块.
- 评估了五种修复方法:Larix principis-rupprechtii (FL),Pinus sylvestris var. 这些修复方法包括: 蒙古 (FP),自然宽叶森林 (FN),开放的草原 (GO) 和封闭的草原 (GC).
- 分析了土壤有机碳 (SOC),总 (TN),总 (TP),总 (TK),性水解 (AN),快速可用的 (AP) 和快速可用的 (AK),并计算了土壤质量指数 (SQI).
主要成果:
- 森林土壤 (FL,FP,FN) 的SOC,TN和AN明显高于草原土壤 (GO,GC).
- 本地Larix principis-rupprechtii (FL),自然宽叶森林 (FN) 和封闭的草原 (GC) 的TN,TP,AN,AK和SOC比异国情调的Pinus sylvestris var.更高. 蒙古 (FP) 和开放的草原 (GO).
- 佛罗里达州展示了最高的TN,TP和SOC. 土壤质量指数 (SQI) 在FL,FN和GC中最高,明显超过FP和GO.
结论:
- 使用本地树种 (FL) 的恢复显著提高了退化森林生态系统中的土壤质量.
- 与本地物种相比,引入外来树种 (FP) 对土壤质量产生了有限的积极影响.
- 基于本地物种的恢复和草原封闭是改善过渡区土壤状况的有效策略.
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