Carbon and nitrogen, humic and labile fractions in soil under clonal eucalyptus stands from cerrado

IF 2.6 2区农林科学 Q1 FORESTRY

European Journal of Forest Research Pub Date : 2024-03-02 DOI:10.1007/s10342-024-01669-x

Wendel dos Santos Moraes, Luiz Fernandes Silva Dionisio, Gustavo Schwartz, Juliana Andrade Pereira, Jossimara Ferreira Damascena, Felipe Alexandre Rizzo, Alberto Bentes Brasil Neto, Camila de Almeida Milhomem, José Maria Arcanjo Alves, Renisson Neponuceno Araujo Filho, Renato de Almeida Sarmento, Alinne da Silva, Cristiano Bueno de Moraes

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Abstract

The objective of this study was to evaluate carbon and (C) and nitrogen (N) of the light organic matter in labile and humic fractions of the soil in a chronosequence of clonal Eucalyptus urophylla. The study was carried out on six different sites in the South-Central region of Maranhão state, northeastern Brazil, inserted in the Cerrado biome. Soil was sampled in five clonal Eucalyptus urophylla S.T. Blake stands of different ages and one in the area with old-growth forest (OG), which represents the native vegetation area. Soil samples were collected in the 0–20, 20–40, and 40–60 cm layers to determine textural class, bulk density, C, and N in the light organic matter of labile and humic fractions. Eucalyptus plantations can have great capacity to increase stocks of soil C and N, humic, and labile fractions over the years, presenting results equal or higher than a native Cerrado forest. Thus, Eucalyptus plantations come as an effective lad use to sink C and increase soil nutrient levels.

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塞拉多地区克隆桉树林下土壤中的碳氮、腐殖质和易变组分

本研究的目的是评估克隆桉树（Eucalyptus urophylla）时序土壤中轻质有机物中的碳和氮。这项研究在巴西东北部马拉尼昂州中南部的六个不同地点进行，这些地点位于塞拉多生物群落中。在五个不同树龄的布莱克克隆桉树林和一个代表原生植被区的原始森林（OG）地区采集了土壤样本。采集了 0-20、20-40 和 40-60 厘米土层的土壤样本，以测定纹理等级、容重、轻有机物中的碳和氮，以及可溶性和腐殖质组分。多年来，桉树种植园有很大的能力增加土壤中的碳和氮、腐殖质和可溶性组分的储量，其结果相当于或高于原生的 Cerrado 森林。因此，桉树种植园是吸收碳和增加土壤养分的有效阶梯。

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来源期刊

European Journal of Forest Research 农林科学-林学

CiteScore

5.10

自引率

3.60%

发文量

审稿时长

6-16 weeks

期刊介绍： The European Journal of Forest Research focuses on publishing innovative results of empirical or model-oriented studies which contribute to the development of broad principles underlying forest ecosystems, their functions and services. Papers which exclusively report methods, models, techniques or case studies are beyond the scope of the journal, while papers on studies at the molecular or cellular level will be considered where they address the relevance of their results to the understanding of ecosystem structure and function. Papers relating to forest operations and forest engineering will be considered if they are tailored within a forest ecosystem context.