Descubre y comparte nuestro conocimiento público

Se han encontrado 353 recursos

Resultados de búsqueda

This paper assesses the role of protected and community managed forests for the long term maintenance of forest cover in the tropics. Through a meta-analysis of published case-studies, we compare land use/ cover change data for these two broad types of forest management and assess their performan...


Porter-Bolland, L.Ellis, E.A.Guariguata, M.R.Ruiz Mallén, I.Negrete-Yankelevich, S.Reyes García, Victoria[Community managed forests and forest protected areas: An assessment of their conservation effectiveness across the tropics]Community managed forests and forest protected areas: An assessment of their conservation effectiveness across the tropics

This study aims to explain effects of soil textural class, topography, land use, and land use history on soil greenhouse gas (GHG) fluxes in the Lake Victoria region. We measured GHG fluxes from intact soil cores collected in Rakai, Uganda, an area characterized by low‐input smallholder (<2 ha) f...


Wanyama, IbrahimRufino, Mariana C.Pelster, David E.Wanyama, George N.Atzberger, ClementAsten, Piet J.A. vanVerchot, Louis V.Butterbach-Bahl, Klaus[Land Use, Land Use History, and Soil Type Affect Soil Greenhouse Gas Fluxes From Agricultural Landscapes of the East African Highlands]Land Use, Land Use History, and Soil Type Affect Soil Greenhouse Gas Fluxes From Agricultural Landscapes of the East African Highlands

The use of East African freshwater wetlands for agriculture has increased in recent decades, raising concerns about potential impacts on wetlands and the long-term sustainability of such land use trends. WET-health is an indicator-based rapid wetland assessment approach developed in South Africa....


Beuel, S.Álvarez, M.Amler, E.Behn, K.Kotze, D.Kreye, C.Leemhuis, C.Wagner, K.Willy, D.K.Ziegler, S.Becker, M.[A rapid assessment of anthropogenic disturbances in East African wetlands]A rapid assessment of anthropogenic disturbances in East African wetlands

Soil samples were collected from 8 land use types in Embu to study the effects of land use on soil chemical and physical parameters and on the occurrence of Trichoderma spp. The fungus was recovered from the soil using the dilution plate and soil washing technique. The remaining soil samples were...


Okoth, Sheila A.Okoth, Peter F.Muya, EA[Influence of soil chemical and physical properties on occurrence of Trichoderma spp. in Embu, Kenya = Influencia de las propiedades químicas y físicas del suelo sobre la ocurrencia de Trichoderma spp. en Embu, Kenia]Influence of soil chemical and physical properties on occurrence of Trichoderma spp. in Embu, Kenya = Influencia de las propiedades químicas y físicas del suelo sobre la ocurrencia de Trichoderma spp. en Embu, Kenia

Populations of Legume Nodulating Bacteria (LNB) were assessed under glasshouse conditions in soils collected from selected landuse systems in Taita Taveta district, Kenya. The populations were estimated by the most-probable-number (MPN) plant infection technique using Macroptilium atropurpureum (...


Mwangi, Simon N.Karanja, Nancy M.Boga, Hamadi M.Kahindi, James M.Muigai, A.M.Odee, D.Mwenda, George M.[Genetic diversity and symbiotic efficiency of legume nodulating bacteria from different land use systems in taita taveta, kenya]Genetic diversity and symbiotic efficiency of legume nodulating bacteria from different land use systems in taita taveta, kenya

The effect of different types of land management on the soil macrofauna of the savanna has been assesed using the T.S.B.F. method. Macrofauna of the forest and savanna has a high density (4293 and 2830 ind.m(2)) and moderate biomass (13.6 and 15.3 g.m(-2)). Traditional grazing significantly incre...


Decaëns, ThibaudLavelle, Patrick M.Jiménez Jaén, J.J.Escobar, G.Rippstein, G[Impact of land management on soil macrofauna in the Oriental Llanos of Colombia]Impact of land management on soil macrofauna in the Oriental Llanos of Colombia

In this study forest fallows (locally known as ‘purmas’) are classified and described in three categories: natural fallow succession (PS), degrading fallow vegetation (PD) and fallow dominated by kudzu (Pueraria phaseoloides) (PK). The study area of Semuya has 83% under PS, and the area of Nueva ...


Alva Vasques, I.J.Ignasio Lombardi, I.[Impacto de los patrones de uso de la tierra sobre los bosques secundarios dela zona de Pucallpa, Peru]Impacto de los patrones de uso de la tierra sobre los bosques secundarios dela zona de Pucallpa, Peru

Se cuantificó la biodiversidad, abundancia y biomasa de la macrofauna en diferentes usos del suelo utilizando la metodología propuesta por el programa Tropical Soil Biology and Fertility (TS.B.F.). La mayor biodiversidad la presento el cacaotal (47 u.-t.), mientras que el tratamiento con mulch ti...


Marin, EPFeijoo Martínez, AlexanderPena, J[Cuantificación de la macrofauna en un vertisol bajo diferentes sistemas de manejo en el Valle del Cauca, Colombia]Cuantificación de la macrofauna en un vertisol bajo diferentes sistemas de manejo en el Valle del Cauca, Colombia
Loker, WMCarter, Simon E.Jones, Peter G.Robison, DM[Identification of areas of land degradation in the Peruvian Amazon using a geographic information system]Identification of areas of land degradation in the Peruvian Amazon using a geographic information system

The USDA Natural Resources Conservation Service (NRCS) developed the Mississippi River Basin Healthy Watersheds Initiative (MRBI) program to improve the health, water quality and wildlife habitat within the Mississippi River Basin. Lake Conway Point Remove (LCPR) watershed was identified as one o...


Leh, Mansoor D.K.Sharpley, A.N.Singh, G.Matlock, M.D.[Assessing the impact of the MRBI [Mississippi River Basin Healthy Watersheds Initiative] program in a data limited Arkansas Watershed using the SWAT model]Assessing the impact of the MRBI [Mississippi River Basin Healthy Watersheds Initiative] program in a data limited Arkansas Watershed using the SWAT model

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso