Dataset: Stem diameter and total tree height for estimate above-ground biomass using different soil classes and forest types in the Serra da Mocidade National Park, northern Brazilian Amazonia

The dataset provides information on tree stem diameter (≥ 10cm) and total tree height (m) for estimate above-ground biomass in different soil classes and forest types of the Serra da Mocidade National Park, state of Roraima, northern Brazilian Amazonia. Our sampling took into consideration 707 initial trees (all of them alive) observed in the Trilha do Gato, a 2.7 km transect (31.1-64.8 m a.s.l.) crossing three different forest types: (i) mosaic between treed and forested shade-loving (La+Ld), (ii) area of ecological tension between forested shade-loving and open ombrophilous forest (LO) and (iii) open ombrophilous forest (Ab+As). The sampled area for each forest type was 0.530 ha (Ab+As), 0.334 ha (LO) and 0.192 ha (La+Ld). All tress/palms were measured annually among June/2016 and May/2018 (stem diameter in 2016-2018, and total height only in 2018). Soil classes are related to flooding periodicity for each forest type observed: Entisols Fluvents (La+Ld, 3-4 months flooded), Entisols Quartzipsamments (LO, 1-2 months) and Yellow Ultisols (Ab+As, no flooding), as specified by Beltrán-Alemán et al. (2019) in International Journal of Plant & Soil Science, 28(6): 1-11. Our dataset has one file (serra_da_mocidade.xlx) where are presented the code for each sampled tree/palm (treeID), associated to its taxonomic identification (family; species), sampling date, altitude (m a.s.l.), flooding periodicity, POM (point of measure of stem diameter), forest type, soil class, stem diameter (cm), and total height (m). The dataset was supported by the project “Crescimento e mortalidade de árvores em ecótonos determinados por limitações hidroedáficas do centro-sul de Roraima” (PPI-INPA). The Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq – Brazil) provided a fellowship for R. I. Barbosa (CNPq 304204/2015-3). L. A. Beltrán-Alemán was supported by a postgraduate fellowship from the Organization of American States (OAS). Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) provided authorization for the study (SISBIO n. 54221-2) in the Serra da Mocidade National Park.

本数据集提供巴西亚马孙北部罗赖马州莫西达德山国家公园（Serra da Mocidade National Park）内不同土壤类型与森林类型的树木茎干直径（≥10cm）及总树高（单位：米）相关信息，用于地上生物量估算。本次采样覆盖了猫道步道（Trilha do Gato）内的707株初始存活树木，该步道为长2.7km的样线（海拔31.1-64.8m a.s.l.），途经3种不同森林类型：(i) 疏林与喜阴森林镶嵌体（La+Ld）；(ii) 喜阴森林与开放性喜雨林之间的生态过渡带（LO）；(iii) 开放性喜雨林（Ab+As）。各森林类型的采样面积分别为：Ab+As类0.530公顷，LO类0.334公顷，La+Ld类0.192公顷。所有树木/棕榈植株均在2016年6月至2018年5月期间开展年度测量：2016-2018年测定茎干直径，总树高仅在2018年完成测定。土壤类型与各森林类型的淹水周期相关，具体分类标准引自Beltrán-Alemán等人2019年发表于《国际植物与土壤科学杂志》（International Journal of Plant & Soil Science）第28卷第6期第1-11页的研究：潮新成土（Entisols Fluvents）对应La+Ld类（淹水3-4个月）、石英质新成土（Entisols Quartzipsamments）对应LO类（淹水1-2个月）、黄色老成土（Yellow Ultisols）对应Ab+As类（无淹水）。本数据集包含1个名为serra_da_mocidade.xlx的文件，其中记录了每株采样树木/棕榈植株的编号（treeID）、分类学鉴定信息（科；物种）、采样日期、海拔（m a.s.l.）、淹水周期、茎径测量点（point of measure of stem diameter, POM）、森林类型、土壤类型、茎干直径（单位：厘米）及总树高（单位：米）。本数据集得到“罗赖马州中南部水文土壤因子限制型生态交错带树木生长与死亡率”项目（PPI-INPA）支持。巴西国家科学技术发展委员会（Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq）为R. I. Barbosa提供了研究员资助（编号：CNPq 304204/2015-3）。L. A. Beltrán-Alemán获得了美洲国家组织（Organization of American States, OAS）的研究生奖学金支持。奇科·门德斯生物多样性保护研究所（Instituto Chico Mendes de Conservação da Biodiversidade, ICMBio）为本次在莫西达德山国家公园开展的研究提供了许可（SISBIO编号：54221-2）。