Soil Health and Management

Linking Reforestation Policies with Land Use Change in Northern Vietnam: Why Local Factors Matter

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Based on a case study in Vietnam, this study seeks to understand the extent to which common state policies on land management actually contribute to reforestation. 

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Geographic Variation in Tree Growth and Wood Density of Guazuma crinita Mart. in the Peruvian Amazon

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This research addresses intra-specific variation in the native Peruvian tree species Guazuma crinita, a fast-growing pioneer species and priority timber tree used in reforestation and agroforestry systems. It also evaluates the tree growth and wood density of G. crinita varieties from 11 provenances in the Peruvian Amazon.

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Leaf Litter Decomposition and Mulch Performance from Mixed and Monospecific Plantations of Native Tree Species in Costa Rica

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This research looks at leaf litter decomposition rates and mulch performance of four native tree species in mixed and monospecific plantations at the La Selva Biological Station in Costa Rica. The four species considered were Callophylum brasiliense, Jacaranda copaia, Vochysia guatemalensis, and Strypnodendron microstachyum. The faster the decomposition, the faster the nutrient transfer from the trees into the soils for uptake by other trees or by crops when the leaves are used as mulch.

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Soil organic matter dynamics during 80 years of reforestation of tropical pastures

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Land disturbance affects soil physical and chemical properties. Some properties may be recovered over long periods of reforestation. Mosaic-pattern landscapes with shifting usages over time, common in the mountainous tropics, can reveal dynamic soil properties. This study reports on changes in soil carbon over 80 years of secondary forest growth on abandoned pasture over a chronosequence in Puerto Rico.

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