Quantifying the Effect Size of Management Actions on Aboveground Carbon Stocks in Forest Plantations.

IF 9 1区农林科学 Q1 FORESTRY Current Forestry Reports Pub Date : 2023-01-01 Epub Date: 2023-04-11 DOI:10.1007/s40725-023-00182-5

Cyril H Melikov, Jacob J Bukoski, Susan C Cook-Patton, Hongyi Ban, Jessica L Chen, Matthew D Potts

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引用次数: 1

Abstract

Purpose of the review: Improved forest management is a promising avenue for climate change mitigation. However, we lack synthetic understanding of how different management actions impact aboveground carbon stocks, particularly at scales relevant for designing and implementing forest-based climate solutions. Here, we quantitatively assess and review the impacts of three common practices-application of inorganic NPK fertilizer, interplanting with N-fixing species, and thinning-on aboveground carbon stocks in plantation forests.

Recent findings: Site-level empirical studies show both positive and negative effects of inorganic fertilization, interplanting, and thinning on aboveground carbon stocks in plantation forests. Recent findings and the results of our analysis suggest that these effects are heavily moderated by factors such as species selection, precipitation, time since practice, soil moisture regime, and previous land use. Interplanting of N-fixing crops initially has no effect on carbon storage in main tree crops, but the effect becomes positive in older stands. Conversely, the application of NPK fertilizers increases aboveground carbon stocks, though the effect lessens with time. Moreover, increases in aboveground carbon stocks may be partially or completely offset by emissions from the application of inorganic fertilizer. Thinning results in a strong reduction of aboveground carbon stocks, though the effect lessens with time.

Summary: Management practices tend to have strong directional effects on aboveground carbon stocks in plantation forests but are moderated by site-specific management, climatic, and edaphic factors. The effect sizes quantified in our meta-analysis can serve as benchmarks for the design and scoping of improved forest management projects as forest-based climate solutions. Overall, management actions can enhance the climate mitigation potential of plantation forests, if performed with sufficient attention to the nuances of local conditions.

Supplementary information: The online version contains supplementary material available at 10.1007/s40725-023-00182-5.

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量化管理行动对人工林地上碳储量的影响大小。

审查的目的：改善森林管理是缓解气候变化的一条有希望的途径。然而，我们缺乏对不同管理行动如何影响地上碳储量的综合理解，特别是在与设计和实施基于森林的气候解决方案相关的规模上。在这里，我们定量评估和回顾了三种常见做法——施用无机NPK肥料、套种固氮和间伐——对人工林地上碳储量的影响。最近的研究结果：站点级的实证研究表明，无机施肥、套种和间伐对人工林地上碳储量有积极和消极的影响。最近的发现和我们的分析结果表明，这些影响在很大程度上受到物种选择、降水、实践时间、土壤水分状况和以前土地利用等因素的调节。固定氮作物的套种最初对主要林木的碳储存没有影响，但在较老的林分中，这种影响变得积极。相反，施用NPK肥料会增加地上碳储量，尽管这种影响会随着时间的推移而减弱。此外，地上碳储量的增加可能部分或完全被施用无机肥料的排放所抵消。减薄会导致地上碳储量的大幅减少，尽管这种影响会随着时间的推移而减弱。总结：管理实践往往对人工林地上碳储量有很强的方向性影响，但受特定地点管理、气候和土壤因素的调节。在我们的荟萃分析中量化的影响大小可以作为设计和确定改进森林管理项目范围的基准，作为基于森林的气候解决方案。总的来说，如果充分注意当地条件的细微差别，管理行动可以提高人工林的气候缓解潜力。补充信息：在线版本包含补充材料，可访问10.1007/s40725-023-00182-5。

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来源期刊

Current Forestry Reports Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics

CiteScore

15.90

自引率

2.10%

发文量

期刊介绍： Current Forestry Reports features in-depth review articles written by global experts on significant advancements in forestry. Its goal is to provide clear, insightful, and balanced contributions that highlight and summarize important topics for forestry researchers and managers. To achieve this, the journal appoints international authorities as Section Editors in various key subject areas like physiological processes, tree genetics, forest management, remote sensing, and wood structure and function. These Section Editors select topics for which leading experts contribute comprehensive review articles that focus on new developments and recently published papers of great importance. Moreover, an international Editorial Board evaluates the yearly table of contents, suggests articles of special interest to their specific country or region, and ensures that the topics are up-to-date and include emerging research.