气候变化领域集成服务门户(CCPortal): Implications of converting native forest areas to agricultural systems on the dynamics of CO 2 emission and carbon stock in a Cerrado soil, Brazil

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DOI	10.1016/j.jenvman.2024.120796
	Implications of converting native forest areas to agricultural systems on the dynamics of CO 2 emission and carbon stock in a Cerrado soil, Brazil
	Silva, Bruna de Oliveira; Moitinho, Mara Regina; Panosso, Alan Rodrigo; Oliveira, Dener Marcio da Silva; Montanari, Rafael; de Moraes, Mario Luiz Teixeira; Milori, Debora Marcondes Bastos Pereira; Bicalho, Elton da Silva; La Scala Jr, Newton
发表日期	2024
ISSN	0301-4797
EISSN	1095-8630
起始页码	358
卷号	358
英文摘要	The conversion of native vegetation to agricultural areas leads to a natural process of carbon loss but these systems can stabilize in terms of carbon dynamics depending on the management and conversion time, presenting potential to both store and stabilize this carbon in the soil, resulting in lower soil respiration rates. In this context, this study aimed to investigate the effect of converting native Cerrado forest areas to agricultural systems with a forest planted with Eucalyptus camaldulensis and silvopastoral systems on the dynamics of CO 2 emission and carbon stock at different soil depths. The experimental sites are located in the Midwest of Brazil, in the coordinates 20 degrees 22 ' 31 '' S and 51 degrees 24 ' 12 '' W. Were evaluated soil CO 2 emission (FCO 2 ), soil organic carbon, the degree of humification of soil organic matter (HLIFS), soil temperature, soil moisture, and soil chemical and physical attributes. The soil of the area is classified as an Oxisol (Haplic Acrustox). Soil samples were collected at depths of 0.00-0.10, 0.10-0.20, 0.20-0.30, and 0.30-0.40 m. The lowest FCO 2 values were found in the silvopastoral system (1.05 mu mol m - 2 s - 1 ), followed by the native forest (1.65 mu mol m - 2 s - 1 ) and the eucalyptus system (1.96 mu mol m - 2 s - 1 ), indicating a 36% reduction in FCO 2 compared to the conversion of the native forest to the silvopastoral system and an increase of 19% when converting the native forest to the eucalyptus system. The soil chemical attributes (N, K + , Ca 2+ , H + +Al 3+ , CEC, and organic carbon) showed a decrease along the profile. The shallowest depths (0.00-0.10 and 0.10-0.20 m) presented no differences between systems but the subsequent depths (0.20-0.30 and 0.30-0.40 m) had a difference (95% confidence interval), relative to N, Ca 2+ , H + +Al 3 , CEC, and organic carbon stock (OCS), and the soil under silvopastoral system showed a higher concentration of these attributes than the native forest. The multivariate analysis showed that the eucalyptus and silvopastoral systems did not differ from the forest in the shallowest soil layer but differed from each other. This behavior changed from the second assessed depth (0.10-0.20 m), in which the silvopastoral system stands out, differing both from the eucalyptus system and from the native forest, and this behavior is maintained at the following depths (0.20-0.30 and 0.30-0.40 m). OCS, H + +Al 3 , CEC, and nitrogen are strongly related to land use change for silvopastoral system. Regarding the behavior/relationship of attributes as a function of depth, the silvopastoral system contributed to soil carbon accumulation and stability over consecutive years.
英文关键词	Climate change; Soil respiration; Silvopastoral system; Sustainability
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001232263300001
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/306658
作者单位	Universidade Estadual Paulista; Universidade Estadual Paulista; Empresa Brasileira de Pesquisa Agropecuaria (EMBRAPA)
推荐引用方式 GB/T 7714	Silva, Bruna de Oliveira,Moitinho, Mara Regina,Panosso, Alan Rodrigo,et al. Implications of converting native forest areas to agricultural systems on the dynamics of CO 2 emission and carbon stock in a Cerrado soil, Brazil[J],2024,358.
APA	Silva, Bruna de Oliveira.,Moitinho, Mara Regina.,Panosso, Alan Rodrigo.,Oliveira, Dener Marcio da Silva.,Montanari, Rafael.,...&La Scala Jr, Newton.(2024).Implications of converting native forest areas to agricultural systems on the dynamics of CO 2 emission and carbon stock in a Cerrado soil, Brazil.JOURNAL OF ENVIRONMENTAL MANAGEMENT,358.
MLA	Silva, Bruna de Oliveira,et al."Implications of converting native forest areas to agricultural systems on the dynamics of CO 2 emission and carbon stock in a Cerrado soil, Brazil".JOURNAL OF ENVIRONMENTAL MANAGEMENT 358(2024).