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Now showing items 31-40 of 126
Estimating protected area revenue in Antigua and Barbuda: an evaluation of the CVM for land use planning in a developing country
(CATIE, Turrialba (Costa Rica), 1997)
A contingent valuation method (CVM) survey was administered to two groups of foreign visitors and two groups of local residents, representing both actual and potential visitors to the proposed Wallings Forest National Park ...
Effects of habitat fragmentation on the reproductive ecology and conservation genetics of the almendro (Dipteryx panamensis), a keystone rainforest tree
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica), University of Idaho, Moscow, ID (EUA), 2006)
Deforestation in the tropics creates a mosaic of forest patches embedded in a human-dominated matrix. Maintaining biodiversity in these fragmented landscapes relies on their ability to sustain ecological processes. This ...
Análisis del efecto de infraestructura verde para la protección del recurso hídrico en las microcuencas del rio Segundo y río Ciruelas, Heredia, Costa Rica
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 2022)
La implementación de infraestructura verde como proyectos de conservación de suelo y agua a nivel local es importante en la gestión integrada de los recursos hídricos por la medidas preventivas y correctivas que ofrecen ...
Participatory research for validation and dissemination of agroforestry technologies to small farmers
(CATIE, Turrialba (Costa Rica), 2000)
El principal objetivo del proyecto es evaluar un acercamiento en la investigación participativa para el establecimiento de sistemas agroforestales en pequeñas parcelas en Rio Guayabo, Costa Rica. Esperando lograr un ...
Multidisciplinary approach to support the design of a local policy of payment for hydrological ecosystem services, in a microwatershed located in northern Veracruz, México
(CATIE, Turrialba (Costa Rica), 2009)
With the target to understand the complexity involved in the design of PHES policies, this thesis developed a methodology to generate basic information that will be used in the construction of local PHES policy. The ...
Mulches from two tropical tree species Erythrina poeppigiana (Walpers) O.F. Cook and Gmelina arborea Rox. as nitrogen sources in the production of maize (Zea mays L.)
(Universidad de Costa Rica (UCR), San José (Costa Rica)
Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 1984)
Se evaluó el material podado del Poró (Erythrina poeppigiana) árbol fijador de nitrógeno y Gmelina (Gmelina arborea), especie de rápido crecimiento como cobertura. El experimento se localizó en Turrialba, Costa Rica, ...
Responses of 10-year-old cacao trees (Theobroma cacao L.) to thinning, fertilizer and climatic conditions
(Universidad de Costa Rica (UCR), San José (Costa Rica)
Centro Agronómico Tropical de Investigación y Enseñanza (CATIE)Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 1979)
Cinco tratamientos de raleo fueron probados en cuatro híbridos de cacao de diez años de edad (clones de UF x Amazonico), ubicados en la “zona atlántica” de Costa Rica. Dos niveles de fertilización (1500 kg/ha y 2250 kg/ha) ...
Response of dwarf elephant grass (Pennisetum purpureum Schum) to different frequencies and intensities of grazing in the humid zone of Guápiles, Costa Rica
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica), 1990)
Cost-benefit analysis of manure applications on specialized dairy farms in the highlands and lowlands of Costa Rica
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 2019)
The objective of this study is to estimate the value of manures for dairy farm pastures through a cost-benefit analysis (CBA) by quantifying manure- N content and costs for manure application. This work focuses on Intensive ...
Landscape effects on insect pests of Dracaena marginata and their associated natural enemies in Costa Rica
(CATIE, Turrialba (Costa Rica), 2012)
This study examined how the landscape in which D. marginata is embedded affected the abundance and distribution of these three insect pest groups and their associated natural enemies. In order to evaluate the effect of the ...