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首页> 外文期刊>Acta amazonica >Equa??es alométricas para estimar carbono e biomassa total, aérea e de raízes de campinaranas da Amaz?nia
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Equa??es alométricas para estimar carbono e biomassa total, aérea e de raízes de campinaranas da Amaz?nia

机译：异速方程，估计来自亚马逊的坎皮纳拉纳斯的碳以及总，气生和根生物量

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The Amazon forest comprises many different forest types, amongst them are campinas and campinaranas, which occur on Amazonian sandy soils, representing 2.65% of Amazonian territory. An understanding of the ecology and quantification of the environmental goods and services of campinaranas is key to their conservation. Based on a direct method to estimate biomass and carbon content of campinarana, we harvested and weighted 89 trees and other forest components in ten randomly allocated plots of 100 m 2 (10 x 10 m) and 11 additional trees outside the plots. The data allowed us to describe how biomass is distributed amongst campinarana vegetation and amongst tree compartments. We developed allometric equations to estimate the total, above- and below-ground biomass and carbon stock of this forest type. We used a Weibull function to test if the diameter distribution of the individual trees sampled was consistent with the diameter distribution of the forest type. We also tested if terra-firme forest biomass equations could be used to estimate campinarana biomass, and whether a correction factor based on dominant height would reduce the error from these estimates. Allometric equations are considered to be the most reliable and rapid method for calculating forest biomass, and are used in forest management and climate change studies. These are the first total biomass equations developed for central Amazonian campinaranas. The best fitted allometric equation for total fresh biomass was: ln (Total Biomass) = -1.373 + 2.546 * ln DBH (R 2 = 0.98, S xy% = 4.19%).
机译：亚马逊森林由许多不同的森林类型组成，其中有坎皮纳斯和坎皮纳拉纳斯，它们生活在亚马逊河沙质土壤上，占亚马逊河领土的2.65％。对坎皮纳拉纳斯的生态学和对环境商品和服务的量化的了解是其保护的关键。基于一种直接估算桔梗生物量和碳含量的方法，我们在10个100 m 2（10 x 10 m）随机分配的样地和该样地外的11个其他树中收获了89棵树和其他森林成分并对其进行了加权。数据使我们能够描述生物量如何在桔梗植被之间和树木间分布。我们开发了异速方程，以估算该森林类型的总，地上和地下生物量和碳储量。我们使用Weibull函数来测试所采样的单个树木的直径分布是否与森林类型的直径分布一致。我们还测试了是否可以使用兵马俑森林生物量方程式来估计桔梗生物量，以及基于显性高度的校正因子是否可以减少这些估计的误差。异速方程被认为是计算森林生物量的最可靠，最快速的方法，并用于森林管理和气候变化研究。这些是为亚马逊中部褶皱藻开发的第一个总生物量方程。总新鲜生物量的最佳拟合异速方程为：ln（总生物量）= -1.373 + 2.546 * ln DBH（R 2 = 0.98，S xy％= 4.19％）。

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