منابع مشابه
Environmental control of natural gap size distribution in tropical forests
Natural disturbances are the dominant form of forest regeneration and dynamics in unmanaged tropical forests. Monitoring the size distribution of treefall gaps is important to better understand and predict the carbon budget in response to land use and other global changes. In this study, we model the size frequency distribution of natural canopy gaps with a discrete power law distribution. We u...
متن کاملNatural Forest Management and Conservation of Biodiversity in Tropical Forests
As a reaction to the continued dwindling of tropical forest resources, many research and development organizations have turned to the idea of natural forest management in the hope of making tropical forest lands more profitable while maintaining biodiversity. Assertions of sustainability in logging practices have been inadequately supported, however. We begin with a review of the present knowle...
متن کاملTropical Forests
To understand where and why tropical forests exist, one must begin with some essential facts of geography and climatic systems. By definition, ‘the tropics’ lie between 238N and 238S latitude, the area within which the sun lies directly overhead at some point in its seasonal progression. Thefluxof solar energywithin this region is high, due to the fact that incoming sunlight is projected at a 9...
متن کاملPrinciples of Natural Regeneration of Tropical Dry Forests for Restoration
Tropical dry forests are the most threatened tropical terrestrial ecosystem. However, few studies have been conducted on the natural regeneration necessary to restore these forests. We reviewed the ecology of regeneration of tropical dry forests as a tool to restore disturbed lands. Dry forests are characterized by a relatively high number of tree species with small, dry, wind-dispersed seeds. ...
متن کاملBioeconomic Approaches to Sustainable Management of Natural Tropical Forests
Bioeconomic models are idealized representations of human-nature interactions used to describe how the decisions that people make regarding the harvest of biological resources affect the future condition of resource stocks and the flow of net economic benefits. This modeling approach posits an assumed goal or objective that a decision-maker seeks to optimize subject to a set of biological const...
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ژورنال
عنوان ژورنال: Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences
سال: 2015
ISSN: 1517-591X
DOI: 10.4322/rca.1676