Colombia
Árboles para Neiva. Especies que fortalecen la Estructura Ecológica Principal (Trees for Neiva. Species that strengthen the ecological structure)EspañolantecedentesEl artículo forma parte de la investigación Fortalecimiento de la Estructura Ecológica Principal a partir de la identificación y selección de especies para la arborización urbana, que se lleva a cabo en siete ciudades de Colombia. Open access copy available |
Árboles para Palmira. Especies que fortalecen la Estructura Ecológica Principal (Trees for Palmira. Species that strengthen the ecological structure)EspañolantecedentesEl artículo forma parte de la investigación Fortalecimiento de la Estructura Ecológica Principal a partir de la identificación y selección de especies para la arborización urbana, que se lleva a cabo en siete ciudades colombianas. objetivos y metodologíaEl estudio busca determinar el estado actual de la arborización en la ciudad de Palmira, así como identificar las especies arbóreas más recomendadas para mejorar la estructura ecológica principal de la ciudad. Open access copy available |
Árboles para Villavicencio. Especies que fortalecen la Estructura Ecológica Principal (Trees for Villavicencio. Species that strengthen the ecological structure)EspañolantecedentesEl artículo forma parte de la investigación Fortalecimiento de la Estructura Ecológica Principal a partir de la identificación y selección de especies para la arborización urbana, que se lleva a cabo en siete ciudades de Colombia. Open access copy available |
Banco de semillas del suelo y su papel en la recuperación de los bosques tropicales (Soil seed banks and its role in tropical forest recovery)EspañolantecedentesEntender los factores que determinan la regeneración natural en el trópico es crucial para la planificación y dirección de esfuerzos de restauración exitosos. objetivos y metodologíaEl estudio presenta una descripción sobre el significado y la importancia del banco de semillas en el trópico, de sus características, de los factores determinantes para su existencia y de su aporte en la restauración y conservación. Open access copy available |
Carbon Sequestration in Pastures, Silvo-Pastoral Systems and Forests in Four Regions of the Latin American Tropicsbackground77% of agricultural land in the tropical Americas is used for pasture (including silvo-pasture and Argo-silvo-pasture), making carbon stocks in this land type an important consideration. This paper presents three-year research results on the evaluation of soil carbon stocks (SCS) in long-established pasture and silvo-pastoral systems (10-16 years under commercial production), native forests and degraded land in four regions of tropical Americas. Available with subscription or purchase |
Ecosystem Decay of Amazonian Forest Fragments: A 22-year InvestigationbackgroundThe authors discuss results from the Biological Dynamics of Forest Fragments Project, a long-term study on rainforest fragmentation in Amazonia. The project, which was originally intended to assess the influence of fragmented areas on Amazonia biota, took place in Menus, Brazil. This report surveyed 340 publications and theses that were produced over the 22 years of the project. Open access copy available |
Land Cover Change in Colombia: Surprising Forest Recovery Trends between 2001 and 2010backgroundThis study mapped annual land-use and land-cover from 2001 to 2010 in Colombia using MODIS (250 m) products coupled with reference data from high spatial resolution imagery (QuickBird) in Google Earth. Research Goals & MethodsThe authors evaluated land cover change at four spatial scales: country, biome, ecoregion, and municipality. Open access copy available |
Forest Cover and Deforestation Patterns in the Northern Andes (Lake Maracaibo Basin): A Synoptic Assessment using MODIS and Landsat ImageryBackgroundSouth America has the highest deforestation rates in the tropics. Yet, the science is often questioned when determining these rates. For example, Venezuela, which has the second highest rate in the region, produces government reports on deforestation that are continually questioned by third parties. This paper stresses the need for more accurate and consistent data on forest cover and greenhouse gase emissions from deforestation. Available with subscription or purchase |
The Savannization of Moist Forests in the Sierra Nevada de Santa Marta, ColombiaBackgroundThis study in the Sierra Nevada de Santa Marta seeks to determine if savannas are natural or caused by anthropogenic factors. The authors use climate data from the past and present, the location of vegetation, and land use history to test their hypothesis. Available with subscription or purchase |
Identifying Hotspots of Deforestation and Reforestation in Colombia (2001–2010): Implications for Protected AreasbackgroundThis article uses satellite imagery, MODIS MOD13Q1 Vegetation Indices 250 , the Virtual Interpretation of EarthWeb-Interface Tool (VIEW-IT) to conduct a land-use analysis of Colombia, mapping trends and "hotspot" areas of deforestation and of reforestation from 2001 to 2010. Research Goals & MethodsThe authors identify four hotspots of deforestation (clustered particularly in lowlands in the north of the country) and four of reforestation, mainly in the Andes highlands. Open access copy available |
