Effects of rubber-based agroforestry systems on soil aggregation and associated soil organic carbon: Implications for land use

Chen, Chunfeng; Liu, Wenjie; Jiang, Xiaojin; Jian, Wu

doi:10.1016/j.geoderma.2017.03.021

Cited by 146 publications

(65 citation statements)

References 44 publications

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“…bulk density, soil aggregation, and soil moisture), because mandibular traits of termite workers are related to resource use and foraging behaviour, such as soil feeding, subterranean tunnelling and mound building (Eggleton, 2011). Higher bulk density and lower moisture in rubber plantations combined with more macroaggregate soil fractions could make the soil particles too hard for termite workers to bite (Chen et al, 2017), and thus explain our observed differences in mandibular traits. Different species may have different sensitivities to environmental disturbance, which probably explains why the other termite species and other functional traits did not change significantly following forest conversion (Flynn et al, 2009;Mayfield et al, 2010).…”

Section: Forest Conversion Effects On Individual Speciesmentioning

confidence: 82%

Comparative responses of termite functional and taxonomic diversity to land‐use change

Liu

Lin

Behm

et al. 2019

Ecological Entomology

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1. While it is clear that land‐use change significantly impacts the taxonomic dimension of soil biodiversity, how the functional dimension responds to land‐use change is less well understood. 2. This study examined how the transformation of primary forests into rubber tree monocultures impacts individual termite species and how this change is reflected in termite taxonomic and functional α‐diversity (within site) and β‐diversity (among sites). 3. Overall, individual species responded strongly to land‐use change, whereby only 11 of the 27 species found were able to tolerate both habitats. These differences caused a 27% reduction in termite taxonomic richness and reduced taxonomic β‐diversity in rubber plantations compared with primary forests. The study also revealed that the forest conversion led to a shift in some termite species with smaller body size, shorter legs and smaller mandibular traits. Primary forests exhibited higher functional richness and functional β‐diversity of termite species, indicating that functional traits of termite species in rubber plantations are more evenly distributed. 4. The present study suggests that forest conversion does not merely decrease taxonomic diversity of termites, but also exerts functional trait filtering within some termite species. The results affirm the need for biodiversity assessments that combine taxonomic and functional indicators when monitoring the impact of land‐use change.

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Section: Forest Conversion Effects On Individual Speciesmentioning

confidence: 82%

Comparative responses of termite functional and taxonomic diversity to land‐use change

Liu

Lin

Behm

et al. 2019

Ecological Entomology

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“…As it put together agricultural crops and tree species, this system promotes greater coverage and protection, reducing soil, water and nutrient losses by erosion and/or leaching. The beneficial changes are especially related to the capacity of the soil to store and supply water to the plants, besides promoting a higher structural quality of the soil, mainly due to the input of organic matter (Chen et al, 2017). On the other hand, long-term-conventional management system is such an intensive land use of soil that decreases organic matter and disturb soil structure, increasing soil density and reducing water infiltration (Bertol et al, 2015), besides some other undesirable effects on physical, chemical and biological attributes of the soil (Araujo et al, 2012;Šimanský et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

Paes¹,

Dias²,

Fernandes³

et al. 2018

JAS

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The objective of this study was to evaluate the soil organic carbon fractions and the carbon management index (CMI) in a cohesive oxisol under different uses. Conventional cassava planting (CC), pasture (PP), and 7-and 12-year agroforestry systems (AF7 and AF12, respectively), were tested against secondary forest (SF). Soil samples of these areas were physically fractionated in order to determine total organic matter (TOC) as well as the labile-(LOC) and non-labile (NOC) fractions of the soil organic matter, as well as carbon management index (CMI). Total organic C ranged from 14.17 to 27.20 g kg -1 of soil, showing no differences in the surface layer among the land uses as compared to the secondary forest. No differences were found in the surface layer for LOC as well, except for the AF12 where LOC was higher. This condition accounts for higher microbial activity and nutrient cycling in the soil. This system also showed higher CMI values, pointing to a better response of soil quality under long-term agroforestry system. This system improved soil organic matter, regardless of the depth. On the other hand, conventional cassava and planted pasture systems reduced carbon in soil. In conclusion, the agroforestry system is the best choice of farmers, when they seek for better soil quality.

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“…When rock fragments are embedded into the soil profile and clay content increases, they can act as a crust, increasing overland flow (Poesen et al, 1990). Soil OM and vegetation increase soil aggregation (Lado et al, 2004; Chen et al, 2017) and infiltration (Bienes et al, 2016). In the abandoned vineyard, the decrease in human disturbance allowed the restoration of natural soil processes since we observed a high interdependence between soil properties and water dynamics.…”

Section: Resultsmentioning

confidence: 99%

The Impact of Vineyard Abandonment on Soil Properties and Hydrological Processes

Rodrigo‐Comino

Bogunović

Mohajerani

et al. 2017

Vadose Zone Journal

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Soil and water resources are affected by land use changes such as land abandonment in vineyards. Changes in water resources and soil water dynamics can result in sudden alterations in erosion rates and trigger land degradation. In this study, we examined the impact of land abandonment on soil properties and hydrological processes in two paired plots: an active and an abandoned vineyard. Laboratory analyses were performed to assess texture, antecedent soil moisture, stoniness, soil water content, and organic matter (OM). A Guelph permeameter was used to quantify the permeability (Per) and saturated hydraulic conductivity (Kfs) at different slope positions and seasons (before and after harvest). Results showed that soil texture and OM were highly modified, and as consequence soil hydrology, after abandonment. We observed a significantly higher Per (26.8 mm h −1 ) and Kfs (8.4 mm h −1 ) in the active vineyard soil than in the abandoned one (Per of 14.2 mm h −1 and a Kfs of 5.4 mm h −1 ). The soils of the active vineyard showed a greater variability among seasons and slope positions. In the abandoned vineyard, the results showed a high correlation of Per and Kfs with gravel content and OM and a negative correlation with the clay fraction. Natural revegetation improved the soil water retention capacity. In the active vineyard, we could not find any relevant factor to explain the soil hydrological properties, and this may be attributed to the disturbance induced by human activities, such as machinery, trampling, and the use of herbicides.

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Effects of rubber-based agroforestry systems on soil aggregation and associated soil organic carbon: Implications for land use

Cited by 146 publications

References 44 publications

Comparative responses of termite functional and taxonomic diversity to land‐use change

Comparative responses of termite functional and taxonomic diversity to land‐use change

Carbon Management Index and Carbon Stock of a Cohesive Oxisol Under Different in the Region Northeast of Brazil

The Impact of Vineyard Abandonment on Soil Properties and Hydrological Processes

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