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Tropical Tree Seed Manual

BACKGROUND

This manual provides information on seed biology, storage, germination and pathology of native trees in neotropics. The second part provides detailed factsheets for 167 tropical tree species.  It provides over 600 pages of species specific descriptions including scientific names, common names, occurrence and geographic range, growth habits, flowering and fruiting, collection of fruits/seeds, extraction and cleaning, storage, pre-germination treatments, germination tests, nursery practices, seedling care, any other information.

Open access copy available

Tree Plantations in the Philippines and Thailand: Economic, Social, and Environmental Evaluation

Background

Tropical land area under plantations have dramatically increased in recent decades, largely as a result of natural forest depletion. Forest plantations cannot qualitatively substitute the timber or the habitat of natural forests, yet are growing in global importance both commercially and ecologically. However, the negative and positive social and environmental impacts must also be included in analysis of tropical forest plantations.

Open access copy available

Trees Commonly Cultivated in Southeast Asia: An Illustrated Field Guide

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This manual is an identification guide for the commonly-encountered trees of Southeast Asia. It provides botanical information for conifers, broad-leafed trees, bamboos, palms, and bananas.

Open access copy available

Farm Forestry: An Alternative to Government-Driven Reforestation in the Philippines

Background

This study reviews literature and various case studies about growing trees at the farm level by rural farmers. In the Philippines, millions of dollars have gone to employ people to plant trees as part of reforestation programs while only about 10% of those planted areas are successful. The authors assert that paying people to plant trees is unsustainable and often hindered by the lack of prompt release of funding.

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Seed Dispersal by Birds and Bats in Lowland Philippine Forest Successional Area

Background

While seed dispersal by birds and bats can be an important driver of succession, few studies have studied this dynamic in the tropical forests of SE Asia. This study compares the role of bird and bat dispersal in the lowland dipterocarp forest of the Subic Watershed Forest Reserve (SWFR) in Luzon Island, Philippines.

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Effects of Nutrient Addition, Mulching and Planting-Hole Size on Early Performance of Dryobalanops aromatica and Shorea parvifolia Planted in Secondary Forest in Sarawak, Malaysia

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In this study, three methods were tested for their ability to improve growth of dipterocarp seedlings planted in west Sarawak, Malaysia.

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Evaluation of Reforestation Potential of 83 Tree Species Planted on Imperata cylindrica Dominated Grassland – A case Study from South Kalimantan, Indonesia

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In this study, 83 tree species (native and exotic) were tested for their growth and survival in species selection trials in South Kalimantan, Indonesia.

Research Goals & Methods

The trees were planted between January 1987 and December 1988 in areas dominated by the exotic grass Imperata cylindrica and weeding was conducted twice a year.

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Woody Understory Plant Diversity in Pure and Mixed Native Tree Plantations at La Selva Biological Station, Costa Rica

Background

This study compares the species richness, abundance, and seed disperal method of individuals growing in the understory of native single-species plantations, native mixed-species plantations, and naturally regenerating (non-planted) areas of the La Selva biological station in Costa Rica.

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Enrichment Planting in a Logged-Over Tropical Mixed Deciduous Forest of Laos

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This study evaluates enrichment planting using five native species planted in degraded (logged) forests in different arrangements.

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

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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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