气候变化领域集成服务门户(CCPortal): Short-term effects of forest management on soil microbial biomass and activity in caatinga dry forest, Brazil

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DOI	10.1016/j.foreco.2020.118790
	Short-term effects of forest management on soil microbial biomass and activity in caatinga dry forest, Brazil
	Anjos Bittencourt Barreto-Garcia P.; Gomes Monteiro Batista S.; Forestieri da Gama-Rodrigues E.; de Paula A.; Charles Amaral Batista W.
发表日期	2020
ISSN	0378-1127
英文摘要	The Caatinga is among the most threatened and least studied tropical dry forests in the world. Sustainable forest management is a rational exploitation practice adopted in the biome, but it can impact a variety of ecosystem attributes. We still have a limited understanding of forest management impacts on the soil, especially on microbial biomass. Thus, we developed this work by asking how do soil microbial biomass and activity respond in the short-term to Caatinga forest management and how do these responses differ between forest management practices? Three types of forest management were evaluated (clear cutting - CC, selective cutting by diameter - SCD, and selective cutting by species - SCS), using unmanaged Caatinga (UC) as a reference. Litter and soil (depth of 0–10 cm) collections were carried out. Soil microbial activity was determined based on the amount of evolved CO2, and the microbial biomass C and N were estimated by the fumigation-extraction method. The management provided a reduction in leaf litter (CC = 16%; SCD = 25%; SCS = 38%; UC = 55%) and an increase in branch litter (CC = 73%; SCD = 66%; SCS = 46%; UC = 35%). It also caused a 42% reduction in MB-C. The metabolic quotient had an increase in CC and SCD management (average of 690.6 mg g−1 day) compared to UC (365.9 mg g−1 day). SCD and CC influenced the activity and C transformation of soil microbial biomass in the short-term, while SCS less intensely affected these variables, approaching the unmanaged forest condition. © 2020 Elsevier B.V.
英文关键词	Dry tropical forest; Metabolic quotient; Microbial attributes; Organic matter
语种	英语
scopus关键词	Biomass; Soils; Forest management practices; Fumigation extractions; Metabolic quotient; Microbial biomass C and N; Soil microbial activities; Soil microbial biomass; Sustainable forest management; Tropical dry forest; Forestry
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155622
作者单位	Southwest Bahia State University, Estrada do Bem Querer, km 04, CXP 95, Vitória da Conquista, Bahia, CEP 45083-900, Brazil; North Fluminense State University, Campos dos Goytacazes, Rio de Janeiro, 28013-602, Brazil
推荐引用方式 GB/T 7714	Anjos Bittencourt Barreto-Garcia P.,Gomes Monteiro Batista S.,Forestieri da Gama-Rodrigues E.,et al. Short-term effects of forest management on soil microbial biomass and activity in caatinga dry forest, Brazil[J],2020.
APA	Anjos Bittencourt Barreto-Garcia P.,Gomes Monteiro Batista S.,Forestieri da Gama-Rodrigues E.,de Paula A.,&Charles Amaral Batista W..(2020).Short-term effects of forest management on soil microbial biomass and activity in caatinga dry forest, Brazil.Forest Ecology and Management.
MLA	Anjos Bittencourt Barreto-Garcia P.,et al."Short-term effects of forest management on soil microbial biomass and activity in caatinga dry forest, Brazil".Forest Ecology and Management (2020).