树冠间隙对土壤养分特性的影响:荟萃分析

IF 2.6 2区 农林科学 Q1 FORESTRY
Mengting Hou, Guangqi Zhang, Yuling Li, Jiaqi Xie, Lipeng Zang, Qingfu Liu, Danmei Chen, Mingzhen Sui, Yuejun He
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引用次数: 0

摘要

树冠间隙是森林生态系统中一种普遍的干扰形式,它通过改变微环境的异质性来促进森林再生和演替。然而,在理解全球范围内树冠间隙对土壤养分特性的影响方面还存在很大的知识差距,这与森林管理和保护策略有关。本研究对来自 31 篇同行评议文章的 518 个配对观测数据进行了元分析,以评估土壤养分特性对冠层间隙的总体响应。结果表明,冠层间隙增加了 NO3--N(+ 22.20%)和 MBP(+ 194.17%)。冠层间隙使 TN、MBC 和 C:P 的含量分别降低了 9.27%、19.58% 和 19.25%。冠层间隙的大小明显降低了SOC(-14.37%)、MBC(-27.45%)、TN(-11.98%)、NH4+-N(-65.26%)、C:N(-15.77%、-16.02%)和C:P比(-28.92%),但明显增加了NO3--N(+ 37.25%)。因此,最好根据不同地区对土壤肥力的具体要求确定临界缺口大小,以优化土壤养分的释放。这些发现对优化冠层间隙管理、全面了解冠层间隙对土壤养分特性的影响以及促进冠层间隙干扰后土壤肥力评估的决策具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The effects of canopy gaps on soil nutrient properties: a meta-analysis

The effects of canopy gaps on soil nutrient properties: a meta-analysis

Canopy gaps are a prevalent disturbance form in forest ecosystems that promote forest regeneration and succession by modifying the heterogeneity of the microenvironment. However, a significant knowledge gap exists in comprehending the global-scale impact of canopy gaps on soil nutrient properties, which is related to forest management and conservation tactics. In this study, 518 paired observations derived from 31 peer-reviewed articles were meta-analyzed to evaluate the overall response of soil nutrient properties to canopy gaps. The results showed that canopy gaps increased NO3–N (+ 22.20%) and MBP (+ 194.17%). The canopy gap decreased the content of TN, MBC, and C:P ratio by 9.27%, 19.58%, and 19.25%, respectively. The size of canopy gaps significantly reduced SOC (−14.37%), MBC (−27.45%), TN (−11.98%), NH4+–N (−65.26%), C:N (−15.77%, −16.02%) and C:P ratio (−28.92%), but significantly increases NO3–N (+ 37.25%). Hence, it is advisable to establish a critical gap size that caters to the specific soil fertility requirements of various regions for the optimal release of soil nutrients. These findings hold substantial significance for optimizing canopy gap management, comprehensively understanding the impact of canopy gaps on soil nutrient properties, and facilitating decision-making to assess soil fertility following canopy gap disturbances.

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来源期刊
CiteScore
5.10
自引率
3.60%
发文量
77
审稿时长
6-16 weeks
期刊介绍: The European Journal of Forest Research focuses on publishing innovative results of empirical or model-oriented studies which contribute to the development of broad principles underlying forest ecosystems, their functions and services. Papers which exclusively report methods, models, techniques or case studies are beyond the scope of the journal, while papers on studies at the molecular or cellular level will be considered where they address the relevance of their results to the understanding of ecosystem structure and function. Papers relating to forest operations and forest engineering will be considered if they are tailored within a forest ecosystem context.
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