Quantifying past forest cover and biomass changes in the Ecuadorian Amazon

IF 8.1 1区 生物学 Q1 PLANT SCIENCES New Phytologist Pub Date : 2024-11-05 DOI:10.1111/nph.20237
Nina H. Witteveen, Zoë S. Kleijwegt, Hana Geara, Cathelijne Kool, Ansis Blaus, Lina Cabrera Saenz, Bianca Tacoronte Gomes, Annemarie Philip, Mark B. Bush, Crystal N. H. McMichael
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量化厄瓜多尔亚马逊地区过去的森林覆盖率和生物量变化。
在这里,我们开发并应用了一些模型来定量重建亚马孙西北部三个湖泊在过去1500多年中的森林覆盖率和生物量变化。我们利用遥感数据和一个包含 50 个亚马孙湖泊的现代数据集,建立了可预测地上生物量的广义线性模型,并将植被形态和森林覆盖率作为预测变量。此外,我们还利用已发表的贝塔回归模型,使用 Poaceae 植物志石预测每个湖泊 200 米范围内的森林覆盖率。我们还对木炭和玉米植化石进行了分析,以确定过去的土地使用情况。结果显示,我们研究地点的森林覆盖率和生物量变化范围分别为 48-84% 和 142-438 兆克/公顷。人类的占领是不连续的,森林覆盖率和生物量的主要变化与土地使用期相吻合。森林覆盖率和生物量在火灾(所有地点)或耕种事件(赞库多科查湖和库姆帕卡湖)后明显下降。过去土地使用的时间和生态影响在空间和时间上存在差异。我们的研究结果表明,人类过去对亚马孙西北部地区的影响规模较小,且具有差异性,火灾对森林植被和生物量的变化具有显著影响。
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来源期刊
New Phytologist
New Phytologist 生物-植物科学
自引率
5.30%
发文量
728
期刊介绍: New Phytologist is an international electronic journal published 24 times a year. It is owned by the New Phytologist Foundation, a non-profit-making charitable organization dedicated to promoting plant science. The journal publishes excellent, novel, rigorous, and timely research and scholarship in plant science and its applications. The articles cover topics in five sections: Physiology & Development, Environment, Interaction, Evolution, and Transformative Plant Biotechnology. These sections encompass intracellular processes, global environmental change, and encourage cross-disciplinary approaches. The journal recognizes the use of techniques from molecular and cell biology, functional genomics, modeling, and system-based approaches in plant science. Abstracting and Indexing Information for New Phytologist includes Academic Search, AgBiotech News & Information, Agroforestry Abstracts, Biochemistry & Biophysics Citation Index, Botanical Pesticides, CAB Abstracts®, Environment Index, Global Health, and Plant Breeding Abstracts, and others.
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