Comparison of soil properties under tropical <i>Acacia</i> hybrid plantation and shifting cultivation land use in northern Vietnam

Hung, Trieu Thai; Doyle, RB; Eyles, Alieta; Mohammed, Caroline

doi:10.2989/20702620.2016.1225185

Cited by 16 publications

(16 citation statements)

References 30 publications

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“…In this context, species of the genus Acacia (Fabales: Fabaceae) may be useful due to their rapid growth and the capacity for biological nitrogen fixation (BNF) in association with symbiotic bacteria [5]. The natural introduction of nitrogen can intensify the cycle of other nutrients and stabilize soil organic matter in degraded environments [6].…”

Section: Introductionmentioning

confidence: 99%

Ecological indices of phytophagous Hemiptera and their natural enemies on Acacia auriculiformis (Fabales: Fabaceae) plants with or without dehydrated sewage sludge application in a degraded area

et al. 2020

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Soil fertilization with dehydrated sewage sludge (DSS) accelerates the recovery process of degraded areas by improving nutrient concentration, and favors the development of trophic webs with pioneer plants such as Acacia auriculiformis A. Cunn. ex Beth (Fabales: Fabaceae), phytophagous Hemiptera, predators, and protocooperanting ants. This study aimed to evaluate the development and production of A. auriculiformis litter with or without dehydrated sewage sludge application and the ecological indices of sucking insects (Hemiptera), their predators and protocooperating ants, as bioindicators, in a degraded area for 24 months. Complete randomization was applied for two treatments (with or without application of dehydrated sewage sludge) in 24 replications (one repetition = one plant). We evaluated the number of leaves/branch and branches/plant, percentage of soil cover (litter), ecological indices of phytophagous Hemiptera, their predators, and protocooperating ants. The plants of A. auriculiformis, that were applied with dehydrated sewage sludge, had superior development when compared to plants where DSS were not applied. The highest abundance and richness of phytophagous Hemiptera species and Sternorrhyncha predators occurred on A. auriculiformis plants that were applied with dehydrated sewage sludge. The increase in richness of species of protocooperanting ants that established mutualistic relationships positively influenced the phytophagous Hemiptera. The use of A. auriculiformis, with application of dehydrated sewage sludge, can increase recovery of degraded areas due to its higher soil cover (e.g., litter) and results in higher ecological indices of phytophagous Hemiptera and their predators.

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Section: Introductionmentioning

confidence: 99%

Ecological indices of phytophagous Hemiptera and their natural enemies on Acacia auriculiformis (Fabales: Fabaceae) plants with or without dehydrated sewage sludge application in a degraded area

et al. 2020

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“…Whether or not land conversion to acacia plantations improved specific soil qualities and overall 'soil fertility' perspicuously depended on site-specific soil characteristics as well as plantation management. Establishment of acacia plantations has recurrently been shown to improve (to some degrees) soil structure, carbon content, plant nutrient conditions (in particular nitrogen content), and microbial bio-activity on highly impacted sites, i.e., sparsely vegetated bushlands and bare lands, or overused crop fields [45,99,[138][139][140][141]. In contrast, conversion of secondary natural forest or densely growing 'bushlands' (including old swidden fallows [142]) into plantations may have led to some types of soil degradation.…”

Section: Configurations Of Acacia Plantation Management: Plot Weedingmentioning

confidence: 99%

“…In contrast, conversion of secondary natural forest or densely growing 'bushlands' (including old swidden fallows [142]) into plantations may have led to some types of soil degradation. For example, several studies ( [112,138,143,144]; but see [113] for a differing assessment) reported that soils of acacia plantations became more acidic (in parallel with decreases in exchangeable cations) as compared to soils under natural vegetation, with potentially progressively decreasing soil fertility. Yet, rainwater-induced soil erosion processes probably pose considerably more serious problems for plantation management in Vietnam [44].…”

Section: Configurations Of Acacia Plantation Management: Plot Weedingmentioning

confidence: 99%

Acacia Plantation Development and the Configuration of Tree Farmers’ Agricultural Assets and Land Management—A Survey in Central Vietnam

Cochard

Ngo³

2021

Land

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Since 1990 acacia-based tree plantations have fast expanded in Vietnam, now supporting a multi-billion-dollar export-oriented wood industry which is transforming from woodchip production to value-added products. Within this dynamic context, tree farmer associations have started to produce sawlogs under FSC (Forest Stewardship Council) certification. In this paper, we retrace the development of plantation assets, investigating farmers’ current livelihoods and land management, specifically considering various aspects of sustainability. We interviewed 180 tree farmers in three districts (lowland–upland regions) of Thừa Thiên Huế Province, including sawlog producers with and without FSC and smallholder producers of woodchips. Acacia planting in ‘barren lands’ was initiated through state programs in the 1990s (low-/midlands) and 2010s (uplands). Farmers now producing FSC sawlogs were among the first to gain forestland tenure; they now own large plantations (on good terrain), are in tune with policies and maintain resources/capacities to adopt management in line with FSC standards. Yet, most farmers also retain plots for easy-to-manage and low-risk woodchip production. Soil/vegetation conservation depends on farmers’ status/capacities and environmental awareness; FSC membership added economic-political benefits. Findings are discussed within a regional historic context. Plantations contribute to economic development, but issues persist/emerged in terms of land equity and environmental governance, risks (e.g., plant pathogens), and spaces/impetus for farm-based innovation and adaptiveness.

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“…The lower clay and higher sand contents in grasslands, having little or no protective vegetation cover, may be due to the removal of clay by erosion (Miheretu and Yimer, 2018;Tsehaye and Mohammed, 2013;Bewket and Stroosnijder, 2003). Hung et al (2017) stated that the higher clay content in tree systems (e.g. forests) compared to other land uses may attribute to the protective cover by tree crowns, roots and litter reducing soil erosion.…”

Section: Changes In Physical Soil Propertiesmentioning

confidence: 99%

Effects of Vegetation Cover/Land Use and Slope Aspect on Surface Soil Properties Near the Copper Smelter Factory in Murgul, Turkey

Küçük¹

2019

Appl. Ecol. Env. Res.

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The mining activities, one of the most drastic examples of human intervention to nature, have considerably deteriorated the environment. Although being one of the smallest and least populated cities of Turkey, Artvin is notably affected by mining in many ways such as acid rains, water contamination and medical problems. The activities also affect soil properties. The present study aimed to assess the effects of restoration and reclamation of the former smelter factory and determine the changes in some soil properties according to land use/land cover (LULC) and slope aspect. With this purpose, Pearson correlation and two-way ANOVA methods were used. Results showed that while LULC significantly affected (p < 0.05) all soil properties except silt content, bulk density, CaCO3 content, C:N ratio, Cd and Zn; slope aspect significantly affected less soil properties such as sand, silt, pH, EC, CaCO3 and Pb. The interaction between factors also significantly affected (p < 0.05) soil properties like LULC. According to partial eta squared (η2) values, while the most significantly affected soil properties by LULC, slope aspect and their interaction were found to be Cr (0.93), Clay (0.59) and Cr (0.94), respectively; the ones least affected were found to be total nitrogen (0.12), CaCO3 (0.14) and total nitrogen for 63-day (0.18), respectively. Despite the black alder's and black locust's lack of phytoremediation abilities concerning soil heavy metal content except Pb, Alnus glutinosa and Robinia pseudoacacia may be suggested for the restoration and reclamation of mining soils in terms of phytoremediation beside their advantages such as improving nitrogen mineralization.

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Comparison of soil properties under tropical Acacia hybrid plantation and shifting cultivation land use in northern Vietnam

Cited by 16 publications

References 30 publications

Ecological indices of phytophagous Hemiptera and their natural enemies on Acacia auriculiformis (Fabales: Fabaceae) plants with or without dehydrated sewage sludge application in a degraded area

Ecological indices of phytophagous Hemiptera and their natural enemies on Acacia auriculiformis (Fabales: Fabaceae) plants with or without dehydrated sewage sludge application in a degraded area

Acacia Plantation Development and the Configuration of Tree Farmers’ Agricultural Assets and Land Management—A Survey in Central Vietnam

Effects of Vegetation Cover/Land Use and Slope Aspect on Surface Soil Properties Near the Copper Smelter Factory in Murgul, Turkey

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