Tropical Wet Forest

Plantaciones forestales con especies nativas: Una alternativa para la producción de madera y la provisión de servicios ambientales (Native species tree plantations: and alternative for wood production and environmental services)

Se presenta un panorama general del desarrollo de las actividades de plantaciones forestales en Costa Rica, así como algunos resultados de ensayos de rehabilitación de áreas degradadas con especies forestales nativas en la Estación Biológica La Selva. Durante 12 años, se midió anualmente el crecimiento y la producción de biomasa aérea de doce especies nativas en rodales mixtos y puros, como asi también la fertilidad del suelo bajo plantaciones puras de cuatro especies forestales nativas. La mezcla de especies mostro la mayor productividad volumétrica, estadísticamente superior a las especies en plantaciones puras.

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Growth of dipterocarp seedlings in artificial gaps: An experiment in a logged-over rainforest in South Kalimantan, Indonesia

Background

Regeneration of dipterocarps following logging has become a crucial issue in tropical forest management. Secondary forest frequently and rapidly replaces dipterocarps in large logged-over patches. If unmanaged, these secondary forest patches are often composed of unmerchantable early-succession species. It has been hypothesized that dipterocarps grow most successfully in small gaps.

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Restoration of Tropical Forest Ecosystems

BACKGROUND

This book presents a compilation of papers presented at a symposium on "Restoration of Tropical Forest Ecosystems" that occurred in Bonn, Germany during October of 1991. The event, sponsored by Mitsubishi Corporation, addressed the reasons for tropical forest destruction, opportunities and challenges for restoration, rehabilitation and management. This book presents perspectives  of authors from different countries and contexts on forestry, ecology, and nature conservation to address the need for restoration and rehabilitation of tropical forests.

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Rehabilitation of Degraded Tropical Forest Lands

background

This article discusses the options for the rehabilitation of degraded land on high rainfall areas. It suggests that it is both environmentally and economically disadvantageous to let the degraded land remain in an unproductive and rapidly eroding state.

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Ecological Significance of Crown Functional Traits Across Size Classes and Disturbance Environments in Eight Pioneer Species in a Sri Lankan Rain Forest

background

This article evaluates the tree crown characteristics of eight pioneer tree species in the Shorea-Mesua vegetation type (an aseasonal, mixed dipterocarp forest) around the Sinharaja World Heritage Forest Reserve in southwest Sri Lanka.

Research Goals & Methods

The crown surface area, crown volume, and live crown ratio were measured as well as evaluated for their correlation with tree size classes and disturbance causes.

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The Ecophysiology of Pioneer Tree Species in Relation to their Disturbance Ecology in a Wet Lowland Rainforest, Sri Lanka

Background

This dissertation evaluates pioneers species and their response to light availability and disturbance characteristics in the Shorea-Mesua vegetation type (an aseasonal, mixed dipterocarp forest) around the Sinharaja World Heritage Forest Reserve in southwest Sri Lanka.

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Shade management in coffee and cacao plantations

Background

Shade trees reduce the stress of coffee (Coffea spp.) and cacao (Theobroma cacao) by ameliorating adverse climatic conditions and nutritional imbalances and increase the biodiversity of coffee farms, but they may also compete for growth resources. This review summarizes the literature on ecological aspects of shade-grown coffee and cacao and on management of shade trees, but does not address economic and social aspects of shade-grown coffee and cacao.

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Arboles de Centroamerica: un Manual para Extensionistas (Trees of Central America: a Manual for Extentionists)

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Antecedentes

Los agricultores de Centro América afrontan una compleja realidad que usualmente no es considerada en las iniciativas de manejo sostenible, lo que repercute en la falta de éxito de estas. En un esfuerzo por insertar las necesidades reales de los agricultores a estas actividades, este manual busca cubrir la brecha de información relacionada a especies arbóreas nativas de América Central.

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Biodiversity Conservation in Traditional Coffee Systems of Mexico

Background

This article discusses the capacity of traditional coffee agroforestry systems for maintaining biodiversity levels.

Research Goals & Methods

The authors describe five coffee plantation systems based on differing vegetational and structural complexity: (1) traditional rustic, (2) traditional polyculture, (3) commercial polyculture, (4) shaded monoculture, and (5) unshaded monoculture.

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The Role of Rustic Coffee Plantations in the Conservation of Wild Tree Diversity in the Chinantec Region of Mexico

background

This study examines the potential of shade coffee systems to promote native tree diversity across the landscape of southern Mexico.

Research Goals & Methods

Twenty-two coffee plantations, representing a range of elevation and age of development, were sampled to assess their species compositions. In total, 45 species (34 tree species) were recorded in the plantations, and 77% of them were native species.

Open access copy available
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