研究热带木本植物CO2外排估算的准确性：标度方法、垂直和纵向变化。

IF 8.3 1区生物学 Q1 PLANT SCIENCES

New Phytologist Pub Date : 2025-04-03 DOI:10.1111/nph.70122

Maria B. Mills, Alexander Shenkin, Phil Wilkes, Mathias Disney, Susan Page, Juan Carlos Berrio, Jörg Kaduk, Yadvinder Malhi, Rolando Robert, Reuben Nilus, Terhi Riutta

引用次数: 0

摘要

干CO2外排（EA）对热带森林的自养和生态系统呼吸有重要贡献，但实地方法往往存在偏差和不确定性。本研究评估了这些偏差及其在林分水平上对EA规模的影响。在马来西亚婆罗洲沙巴州的Maliau盆地保护区，研究了EA的纵向和纵向模式，以及利用异速生长方程与陆地光探测和测距（LiDAR）扫描（TLS）估算茎表面积的准确性。由于树间的变异，树间EA表现出不均匀的模式，但结果表明，在15:00 h之前测量EA。在扶壁和第一个主要分支点以上，EA显著较高，但当准确估计茎表面积时，EA的垂直变化不影响林分水平EA。与TLS相比，异速生长方程低估了总茎表面积的40%，但应用特定站点的校正因子，得到了与TLS相似的林分水平EA和总茎表面积。该研究为野外EA测量提供了指导，并表明如果使用正确的时间框架和准确估计茎的表面积，在一个时间点和沿茎的一个高度测量可以产生准确的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Investigating the accuracy of tropical woody stem CO2 efflux estimates: scaling methods, and vertical and diel variation

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Investigating the accuracy of tropical woody stem CO2 efflux estimates: scaling methods, and vertical and diel variation

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来源期刊

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.