Leucaena leucocephala

Nitrogen Dynamics of Actinorhizal Casuarina Forest Stands and its Comparison with Alnus and Leucaena Forests

Background

Nitrogen plays a key role in soil fertility and plant productivity. Therefore, in regions in which deforestation has increasingly led to savannization and desertification, afforestation by fast-growing, n-fixing tree species is preferable. This study examines the characteristics of nitrogen fixing trees. 

Research Goals & Methods

The nitrogen retention rates of three dry tropical forest tree species were measured, by examining rates of N cycling through vegetation, litter and soil pools.

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The Role of Nurse Trees in Mitigating Fire Effects on Tropical Dry Forest Restoration: A Case Study

Background

The authors of this study initially studied differential growth rates in a reforestation project of native tree species with nurse trees(Leucaena leucocephala) and without nurse trees when the area had two fire events. However, authors took advantage of the unplanned experiment to study the effects of fire in reforestation.

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Impacts of Early- and Late-seral Mycorrhizae during Restoration in Seasonal Tropical Forest, Mexico

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This study examines the degree to which arbuscular mycorrhizal fungi (AMF) are associated with early vs. late successional forests in Quintana Roo, Mexico. It considers how such fungi aid seedling growth of six native early-, mid- or late-successional tree species. The researchers hypothesize that the application of mycorrizae associated with a tree species' associated successional sere will better promote that species' seedling growth and that associated AMF are therefore key for forest restoration success in degraded or disturbed areas.

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Produção De Leite Com Sistemas Silvipastoris Intensivos (Milk Production with Intensive Silvopastoral Systems)

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Bwa Yo: Important Trees of Haiti

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This book, published in 1996, presents important tree species in Haiti as part of a USAID effort to address environmental degradation in Haiti. The trees presented are mainly those in the agricultural landscape, providing food or fuel, although trees with cultural or ecological importance are also presented.

Each tree profile provides information and photos including discussions of the species and common names, importance, taxonomy and botanical features, distribution and ecology, tree characteristics, utilization, propagation, and other findings (biomass studies, growth performance, tree improvement, seed research, and/or planting stock quality).

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Agroforestry Training Program: Taking Action, Reaching Out

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Manual of Reforestation and Erosion Control for the Philippines

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This manual provides a detailed guide to reforestation, including information about species selection, nursery techniques, site preparation and plantation design, weed and fire control, stand improvement and other practical aspects of establishing and managing tree plantations. Additionally, there is a large portion devoted to erosion control, using trees and engineered structures to stabilize slopes and decrease the velocity of water runoff.

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Forest Plantations in Costa Rica and Nicaragua: Performance of Species and Preferences of Farmers

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This paper presents data on the survival and growth of mixed native and exotic forest plantations established on abandoned pastures in Costa Rica and Nicaragua. The article also includes information on farmer species preference and socioeconomic information.

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Restoration of degraded forest land in Thailand: the case of Khao Kho

Background

This chapter discusses the deforestation of Khao Kho district, situated in Thailand’s central highlands, in the 1970s and restoration efforts in the 1990s. Over 75% of the district was forested until 1968, when as a counterinsurgency strategy the Royal Thai Army began to build roads, deforest the district and encourage agricultural settlement in this heretofore intact forest. Deforestation and maize cultivation on these steep hillsides, often with already-poor soil quality degraded in situ, led to rapid degradation with farming untenable by 1990. A UNDP-funded reforestation project – managed by the Army – was initiated in 1990.

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Biomass Equations for Tropical Tree Plantations Using Secondary Data from the Philippines

background

This study advances models for biomass estimation of tropical forests using equations verified by sampling in Philippines plantations. Evidence-based, site-specific equations for biomass estimation can avoid the need for frequent destructive sampling.

Open access copy available
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