Effects of Land Use Change on Soil Quality Indicators in Forest Landscapes of the Western Amazon

Bonilla-Bedoya, Santiago; López-Ulloa, Magdalena; Vanwalleghem, Tom; Machuca, Miguel Ángel Herrera

doi:10.1097/ss.0000000000000203

Cited by 18 publications

(16 citation statements)

References 53 publications

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“…The growing interest in biofuels has resulted in a new demand for arable land for bioenergy crop production. Land use change (LUC) is one of the greatest threats to soil quality (Bonilla‐Bedoya, López‐Ulloa, Vanwalleghem, & Herrera‐Machuca, ; Cherubin, Karlen, Cerri, et al., ), as it can have significant impacts on soil biodiversity (Franco et al., ), carbon storage (Mello et al., ) and ecosystem services (Foley et al., ). Brazil is the world’s largest sugarcane producer with 8.59 million ha of cultivation area and production of 29 Mt of sugar and 33 billion L of ethanol (CONAB, ).…”

Section: Introductionmentioning

confidence: 99%

Soil microstructure alterations induced by land use change for sugarcane expansion in Brazil

Canisares

Cherubin

Silva

et al. 2020

Soil Use and Management

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Land use change (LUC) alters soil structure and, consequently, the functions and services provided by these soils. Conversion from extensive pasture to sugarcane is one of the largest land transitions in Brazil as a result of the growth of the domestic and global demands of bioenergy. However, the impacts of sugarcane expansion on the soil structure under extensive pasture remains unclear, especially when considering changes at the microscale. We investigated whether LUC for sugarcane cultivation impacted soil microstructure quality. Undisturbed soil samples were taken from two soil layers (0–10 and 10–20 cm) under three contrasting land uses (native vegetation—NV, pasture—PA and sugarcane—SC) in three different locations in the central‐southern Brazil. Oriented thin sections (30 μm) were used for micromorphological analysis. The total area of pores decreased following the LUC in the following order: NV > PA > SC in both soil layers. The area of large complex packing pores (>0.01 mm²) also decreased with the LUC sequence: NV>PA>SC. Qualitative and semi‐quantitative micromorphological analysis confirmed porosity reduction was driven by the decrease in complex packing pores and that biological features decreased in the same LUC sequence as the quantitative parameters. Therefore, LUC for sugarcane expansion reduced microscale soil porosity, irrespectively of soil type and site‐specific conditions, indicating that the adoption of more sustainable management practices is imperative to preserve soil structure and sustain soil functions in Brazilian sugarcane fields.

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Section: Introductionmentioning

confidence: 99%

Soil microstructure alterations induced by land use change for sugarcane expansion in Brazil

Canisares

Cherubin

Silva

et al. 2020

Soil Use and Management

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“…We observed a more sensitive response of labile carbon pools to tropical forest restoration. Labile carbon, as the active carbon fraction, often responds more strongly to land‐use change, thus it can serve as a sensitive indicator in evaluating soil quality change (Bonilla‐Bedoya et al, ; Thangavel, Kanchikerimath, Sudharsanam, Ayyanadar, & Vanao, ). There was greater storage of labile carbon fractions (i.e., microbial, readily oxidizable, and dissolved organic carbon) than SOC during forest restoration.…”

Section: Discussionmentioning

confidence: 99%

“…Labile carbon fractions have a faster response to forest restoration than SCO (Brito, Bautista, López‐Poma, & Pivello, ). This serves as a sensitive indicator to determine the effect of forest restoration on soils (Bonilla‐Bedoya, López‐Ulloa, Vanwalleghem, & Herrera‐Machuca, ; Kalambukattu, Singh, Patra, & Arunkumar, ). Furthermore, a significant change in the composition and structure of plant community would have a crucial effect on labile carbon accumulation during forest restoration.…”

Section: Introductionmentioning

confidence: 99%

Contribution of plant litter and soil variables to organic carbon pools following tropical forest development after slash‐and‐burn agriculture

et al. 2020

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Tropical forest development after slash-and-burn agriculture crucially affects soil carbon accumulation. However, it remains unclear how the dynamics of soil organic carbon (SOC) pools are regulated following tropical forest restoration. Our study aims to quantify the contribution of litter and soil variables to alterations in carbon pools during tropical forest restoration on slash-and-burn agricultural land in Xishuangbanna, Yunnan, China. This study observed a significant increase in soil carbon pools along forest restoration. The extent of the increase in labile fractions (1.9-2.5-times) was higher than that of SOC (1.5-times) during the restoration from early to later stages.The proportion of microbial carbon to total carbon increased from 3.0 to 7.7% during forest restoration, while those of dissolved (5.3-3.1%) and readily oxidizable (42.9-29.6%) fractions decreased. Clay content determined the accumulation dynamics of SOC (10.5%) and labile fractions (6.0-13.5%) in the later stage, while free Fe oxides (10.4-15.4%) contributed to these pools mainly in the early stage. Microbial carbon explained 22.4-26.7% and 20.6-28.3% of the variation in SOC stocks and labile fractions, respectively, whereas litter carbon accounted for 9.5-15.3% of the change in microbial carbon stock. The contribution (8.2-17.1%) of litter-soil nutrient interactions to carbon pools increased during forest restoration. Our data suggest that carbon dynamics are mainly determined by variations in the clay content, free Fe oxides, and litter and microbial carbon, possibly through nutrient-level interactions between the litter and soil during tropical forest restoration. K E Y W O R D S carbon pool, forest development, nutrient interaction, slash-and-burn, tropics

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“…Land use/cover is significant to a key land surface process [1] by significantly influencing microclimate [2], soil quality [3], biodiversity [4] and the carbon cycle [5]. Land use/cover is therefore emerging as a key issue in global environmental change [6,7].…”

Section: Introductionmentioning

confidence: 99%

Exploring the Response of Net Primary Productivity Variations to Land Use/Land Cover Change: A Case Study in Anhui, China

Yang¹,

Hu²,

Peng³

et al. 2019

Pol. J. Environ. Stud.

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Land use and land cover change (LUCC) has a significant influence on regional net primary productivity (NPP) in territorial ecosystems. Evaluating the driving factors of LUCC and the influences of LUCC on NPP is significant for understanding the driving mechanisms deeply and improve land management. NPP as estimated by the Carnegie-Ames-Stanford Approach (CASA) model was employed as an important indicator to evaluate the influences of LUCC on regional NPP and decouple interactive effects of LUCC and climate change on NPP in Anhui from 2001 to 2010. The results demonstrated that 34.25% of the whole area had occurred in LUCC. The most dominant transformation of LUCC was the conversion from grassland and crop/natural vegetation mosaic to forest and cropland. The area of cropland and forest had the most increments compared to other land use types, with an increase of 30.52% and 35.29% of that in 2001. Socioeconomic development, economic interests and government policies took an important role in driving the LUCC. The total NPP increased mainly due to the contributions of the area expansion of cropland and forest. Climate change resulted in the decreased NPP of 449.84 GgC, whereas LUCC facilitated the NPP in the increase of 1816.05 GgC. This result indicates that the increased NPP induced by LUCC could offset the NPP decrease from climate change during the study periods. This paper also demonstrated that reforestation and forest protection were indeed effective in promoting ecosystem productivity.

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Effects of Land Use Change on Soil Quality Indicators in Forest Landscapes of the Western Amazon

Cited by 18 publications

References 53 publications

Soil microstructure alterations induced by land use change for sugarcane expansion in Brazil

Soil microstructure alterations induced by land use change for sugarcane expansion in Brazil

Contribution of plant litter and soil variables to organic carbon pools following tropical forest development after slash‐and‐burn agriculture

Exploring the Response of Net Primary Productivity Variations to Land Use/Land Cover Change: A Case Study in Anhui, China

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