干旱区生态环境知识资源中心(Arid): Temporal variation of soil CO2 emission in different land uses in the Caatinga

Arid

DOI	10.1016/j.apgeog.2022.102661
	Temporal variation of soil CO2 emission in different land uses in the Caatinga
	Lourenco, Elloise Rackel Costa; de Souza, Bartolomeu Israrel; D'Andrea, Alexandre Fonseca; de Souza, Jose Joao Lelis Leal
通讯作者	de Souza, JJLL
来源期刊	APPLIED GEOGRAPHY
ISSN	0143-6228
EISSN	1873-7730
出版年	2022
卷号	140
英文摘要	CO2 is an important gas for the biological cycle, as it plays a fundamental role in regulating the planet's temperature. Modifications in ecosystems promote an imbalance in carbon dynamics, causing more significant release into the atmosphere. The Caatinga biome, a dry forest type, has been anthropized since before the beginning of Brazil's colonization. Knowledge about the consequences of this anthropization in carbon stock changes in the soil is still scarce. This work aimed to evaluate the soil CO2 efflux in preserved and degraded sites in the Caatinga. CO2 emissions were collected in the field using an Infrared Gas Analyzer at four sampling points in the dry and rainy seasons of 2017. Texture, reactivity, nutrient content, and soil porosity were measured. Base saturation and texture were similar in the preserved and degraded sites. Preserved sites have higher C, N, P, and available water contents. Emission of CO2 increased with available water after rain events. Temperature, soil moisture, and land use influenced CO2 efflux, indicating the complexity of understanding the phenomenon. Degraded sites registered lower C stock and CO2 influx as an indication of desertification.
英文关键词	Tropical dry forest Desertification Soil C stock Brazilian semiarid
类型	Article
语种	英语
收录类别	SSCI
WOS记录号	WOS:000795818300003
WOS关键词	ORGANIC-CARBON ; FLUXES ; PLANT ; RESPIRATION ; COVER ; AREAS ; STATE
WOS类目	Geography
WOS研究方向	Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391854
推荐引用方式 GB/T 7714	Lourenco, Elloise Rackel Costa,de Souza, Bartolomeu Israrel,D'Andrea, Alexandre Fonseca,et al. Temporal variation of soil CO2 emission in different land uses in the Caatinga[J],2022,140.
APA	Lourenco, Elloise Rackel Costa,de Souza, Bartolomeu Israrel,D'Andrea, Alexandre Fonseca,&de Souza, Jose Joao Lelis Leal.(2022).Temporal variation of soil CO2 emission in different land uses in the Caatinga.APPLIED GEOGRAPHY,140.
MLA	Lourenco, Elloise Rackel Costa,et al."Temporal variation of soil CO2 emission in different land uses in the Caatinga".APPLIED GEOGRAPHY 140(2022).