Impacts of land-use changes on soil respiration in the semi-arid region of Brazil

Lima, José Romualdo de Sousa; Souza, Rodolfo; Santos, E. S. dos; Souza, Eduardo Soares de; Oliveira, Jéssica Emanuella da Silva; Medeiros, Érika Valente de; Pessoa, Luiz Guilherme Medeiros; Antonino, Antônio Celso Dantas; Hammecker, Claude

doi:10.36783/18069657rbcs20200092

Cited by 7 publications

(3 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, these different land-use types applied in semi-arid have brought uncertainty and concerns about their potential negative effects on soil properties, mainly those associated with soil microorganisms (Lacerda-Junior et al, 2019). Indeed, previous studies have reported that different land-use types have affected the responses of soil microbial properties in Brazilian semiarid (Ferreira et al, 2016;Lima et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Microbial enzymatic stoichiometry and the acquisition of C, N, and P in soils under different land-use types in Brazilian semiarid

Medeiros¹,

Silva²,

Duda³

et al. 2023

Soil Ecol. Lett.

Self Cite

View full text Add to dashboard Cite

The enzymatic stoichiometry varied between land-use in both soil depth.• The values of C-and N-acquiring enzymes were higher at 0−5 cm depth.• Soils under different land-use types in the Brazilian semiarid are P-limited. This study hypothesized that different land-use affect the microbial enzymatic stoichiometry and C-, N-, and P-acquisition in Brazilian semiarid soils. Thus, the enzymes β-glucosidase (C-acquiring enzyme), urease (N-acquiring enzyme), and acid phosphatase (P-acquiring enzyme) were assessed in soil samples collected at 0−5 and 5−10 cm depth from a tropical dry forest, a protected area with Angico, a protected area with Ipê, scrub area, and an agricultural area with maize.

show abstract

Section: Introductionmentioning

confidence: 99%

Microbial enzymatic stoichiometry and the acquisition of C, N, and P in soils under different land-use types in Brazilian semiarid

Medeiros¹,

Silva²,

Duda³

et al. 2023

Soil Ecol. Lett.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The large biomass production, straw return practice, and flooding condition in rice fields led to an increase in the amount of organic matter and a lower decomposition rate, resulting in carbon accumulation (Chen et al, 2021; Zhao et al, 2020). Different types of land use alter surface plant cover, soil carbon stocks, and soil respiration, which in turn affect the local soil carbon balance and the global carbon cycle (Jiang et al, 2015; Li et al, 2022; Lima et al, 2020). Therefore, different land use types have different carbon sequestration capacities, and selecting appropriate land use types for agricultural production in China could be beneficial to soil carbon sequestration capacity while making a positive impact on global climate change mitigation.…”

Section: Introductionmentioning

confidence: 99%

Effects of different farmland utilization types on soil organic carbon in China: A meta‐analysis

Ouyang,

Zhu

2023

Land Degrad Dev

View full text Add to dashboard Cite

Exploring the relationship between soil organic carbon (SOC) and different farmland utilization types can contribute to achieving carbon neutrality in agriculture. Over the past few decades, numerous researchers have conducted a multitude of studies on the effects of farmland utilization types on SOC in China, and these studies have yielded a wealth of data from field experiments. However, these experiments are limited in that they lack sufficient quantitative analyses of studies conducted on regional or national scales. In this study, we analyzed the three most common farmland utilization types (paddy field [PF], dry land [DL], and vegetable field [VF]) in China using a national‐scale meta‐analysis and included data from 108 observations from 28 studies in the field. In this meta‐analysis, we conducted three comparisons (control vs. treatment): (a) PF versus DL, (b) PF versus VF, and (c) DL versus VF. The results showed that in comparison (a), DL had a significantly lower SOC than PF (ln R++ = −0.463, 95% confidence intervals [CIs] = −0.580 ~ −0.345), with DL showing 37.1% lower SOC than PF. In comparison (b), although there was no statistically significant difference between PF and VF (ln R++ = −0.078, 95% CIs = −0.167 ~ 0.011), VF had 7.5% lower SOC than PF. In comparison (c), VF had significantly higher SOC than DL (ln R++ = 0.227, 95% CIs = 0.147 ~ 0.307), with VF showing 25.5% higher SOC than DL. It should be noted that the effects of farmland utilization types on SOC content observed in China varied depending on different factors such as the regions, climatic conditions, and cropping systems. In conclusion, SOC content could be affected by farmland utilization types. Therefore, in order to promote the development of low‐carbon agriculture in China, it is important to consider farmland utilization types in agricultural production, as well as to consider carbon budgets, food security, and field practices to maximize agronomic and environmental benefits.

show abstract

“…They are known for their ecological vulnerability and resource specificity, and they can easily be altered by anthropic disturbances such as grazing, overgrazing, and agriculture (Miralles et al, 2012; Okolo et al, 2020; Zhang et al, 2013). In particular, some studies have been performed to analyze the impact of land‐use type on soil microbial community structure and function in varius semiarid regions of South America (de Araujo Pereira et al, 2021; Ferreira et al, 2016; Lima et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Influence of land‐use changes on microbial community structure and diversity in a semiarid region

et al. 2022

View full text Add to dashboard Cite

Land-use change and the conversion of land into croplands is one of the main drivers of soil degradation and the loss of soil organic carbon. Few studies have evaluated the impact of the expansion of the agricultural frontier on soil microbial communities in the Gran Chaco region in South America; therefore, the objective of this study was to explore how soil microbial communities respond to land-use changes in a semiarid region of Argentina. The land uses selected were total and selective clearing with livestock (TC-livestock and SC-livestock), total clearing with agriculture (TC-agriculture), and an undisturbed site (R-Chancaní). Our results suggest that microbial abundances were strongly influenced by seasonal changes. In both seasons, the lowest values of total microbial biomass were observed in TC-agriculture and TC-livestock.In the wet season, TC-agriculture had the lowest fungal abundance, and both total clearing sites (TC-livestock and TC-agriculture) had higher bacterial abundance than the other sites. Our data also showed that the Shannon and richness indices were highest at the farming sites, indicating a similar tendency in the diversity indexes in both dry and wet seasons. According to Pearson correlation analysis, humic substance (HS) content was a key driver influencing soil microbial communities, demonstrating that high HS content may significantly increase bacteria, fungi, and total phospholipid fatty acids. Microbial composition highly depended on seasonal changes. Overall, our results suggest that land-use change altered microbial community structure and bacterial diversity, and that HS content played a crucial role in driving changes in soil microbial composition.

show abstract

Impacts of land-use changes on soil respiration in the semi-arid region of Brazil

Abstract: Impacts of land use changes on soil respiration in the semiarid region of Brazil. Rev Bras Cienc Solo. 2020;44:e0200092.

Cited by 7 publications

References 65 publications

Microbial enzymatic stoichiometry and the acquisition of C, N, and P in soils under different land-use types in Brazilian semiarid

Microbial enzymatic stoichiometry and the acquisition of C, N, and P in soils under different land-use types in Brazilian semiarid

Effects of different farmland utilization types on soil organic carbon in China: A meta‐analysis

Influence of land‐use changes on microbial community structure and diversity in a semiarid region

Contact Info

Product

Resources

About