气候变化领域集成服务门户(CCPortal): Coarse woody debris dynamics in a secondary Atlantic Forest fragment in Brazil

CCPortal

DOI	10.1139/cjfr-2023-0186
	Coarse woody debris dynamics in a secondary Atlantic Forest fragment in Brazil
	Villanova, Paulo Henrique; Torres, Carlos Moreira Miquelino Eleto; Jacovine, Laercio Antonio Gonsalves; Schettini, Bruno Ledo Said; Soares, Carlos Pedro Boechat; Rocha, Samuel Jose Silva Soares da; Rufino, Maria Paula Miranda Xavier; Freitas, Mariany Filipini de; Kerkoff, Lucas Abreu
发表日期	2024
ISSN	0045-5067
EISSN	1208-6037
起始页码	54
结束页码	6
卷号	54 期号:6
英文摘要	The Atlantic Forest fragments have suffered from the impacts of climate change, resulting in the increased production of coarse woody debris (CWD), which needs to be evaluated in space and time to generate accurate estimates of carbon accumulation. Thus, the goals of this study were (i) to quantify the CWD volume, necromass, carbon stock, and annual increment of carbon (AIcarb) over a period of 4 years; and (ii) to select the optimal combination of climatic, topographic, edaphic, and intrinsic forest variables to accurately predict AIcarb using machine learning and multivariate analysis. The CWD volume, necromass, and carbon stock increased between 2017 and 2020. The AIcarb was 1.09 MgC ha-1 year-1 (2017-2018), 1.24 MgC ha-1 year-1 (2018-2019), and 2.31 MgC ha-1 year-1 (2019-2020). Statistical analysis indicated that climate variables had greater weight in the CWD carbon increment in the 2018-2019 and 2019-2020 periods, while edaphic, topographical, and intrinsic forest variables were more important for the 2017-2018 period. Our findings showed that the carbon increase in CWD was linked to temporal and spatial variables within forests. These results demonstrate the importance of this parameter in the carbon cycle of forest ecosystems and highlight that there should be greater international research efforts to quantify this carbon pool.
英文关键词	climate changes; machine learning; necromass; tree mortality; tropical forests
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:001203193100001
来源期刊	CANADIAN JOURNAL OF FOREST RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288460
作者单位	Universidade Federal de Vicosa; Universidade Federal de Lavras
推荐引用方式 GB/T 7714	Villanova, Paulo Henrique,Torres, Carlos Moreira Miquelino Eleto,Jacovine, Laercio Antonio Gonsalves,et al. Coarse woody debris dynamics in a secondary Atlantic Forest fragment in Brazil[J],2024,54(6).
APA	Villanova, Paulo Henrique.,Torres, Carlos Moreira Miquelino Eleto.,Jacovine, Laercio Antonio Gonsalves.,Schettini, Bruno Ledo Said.,Soares, Carlos Pedro Boechat.,...&Kerkoff, Lucas Abreu.(2024).Coarse woody debris dynamics in a secondary Atlantic Forest fragment in Brazil.CANADIAN JOURNAL OF FOREST RESEARCH,54(6).
MLA	Villanova, Paulo Henrique,et al."Coarse woody debris dynamics in a secondary Atlantic Forest fragment in Brazil".CANADIAN JOURNAL OF FOREST RESEARCH 54.6(2024).