Examinando por Autor "Ricse Tembladera, Auberto"

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A multiple-species participatory domestication programme in the Peruvian Amazon: experiences and results to date
(2005-01) Cornelius, J.; Sotelo Montes, C.; Ugarte Guerra, Julio; Weber, John C.; Ricse Tembladera, Auberto
In 1995, the World Agroforestry Centre (ICRAF) and partners initiated a participatory agroforestry domestication programme in the Aguaytía Watershed and Alto Amazonas province of the Peruvian Amazon. The programme, aimed primarily at conservation-through-use of genetic diversity, began with formal, participatory prioritization, leading to selection of four species: bolaina blanca (Guazuma crinita Martius: Sterculiaceae),capirona (Calycophyllum spruceanum (Bentham) Hooker f. Ex Schumann)), guaba (Inga edulis C. Martius: Leguminosae (Mimosoideae)), peach palm (Bactris gasipaes Kunth: Palmae). Open-pollinated seed of each was collected from farmer-selected mother trees, and used in the establishment of a series of seedling seed orchards / progeny tests, the individual blocks of which were dispersed on lands of individual collaborating farmers. Almost ten years later these trials are beginning to produce seed, the Aguaytían famers have organized themselves into a wood and seed producers’ cooperative, the technology developed is being adopted more widely, and genetic results are becoming available. We describe the programme and its results in detail, with special emphasis on its innovative features. Subsequently, we evaluate success to date in relation both to initial objectives and the programme’s response to the evolving local forestry and development environment. Finally, we consider future priorities.
El balance entre la ganancia genética y la conservación en un programa de mejoramiento participativo: el caso del pijuayo (Bactris gasipaes kunth)
(Academic Publishers, 2006-01-31) Cornelius, J.; Clement, C.; Weber, John C.; Sotelo Montes, C.; Van Leeuwen, J.; Ugarte Guerra, Julio; Ricse Tembladera, Auberto; Arévalo López, L.
[ES] Encontrar un equilibrio entre la conservación de recursos genéticos y el mejoramiento genético puede ser difícil. El problema se explora en el presente artículo, en parte a través de un estudio de caso de un programa de mejoramiento genético participativo de pijuayo (Bactris gasipaes Kunth, Palmae), conducido en la Amazonía peruana por el Centro Mundial de Agroforestería (ICRAF) y el Instituto Nacional de Investigación Agraria del Perú (INIA). El pijuayo, que fue originalmente domesticado por los amerindios, produce un rango de materiales y productos comercializables, sin embargo, hoy, los frutos y los cogollos (palmito) constituyen los principales productos. Se describen las características de los clientes (agricultores pequeños de subsistencia y empresas con plantaciones agro-industriales) para estos productos y aquellos del proyecto ICRAF – INIA y se explora el impacto sobre la diversidad genética de futuras opciones de manejo. Sigue a esto una amplia discusión de las relaciones entre la ganancia genética y el mantenimiento de la diversidad genética para el mejoramiento y sus implicaciones. El programa ICRAF – INIA fue diseñado para enfatizar la conservación genética y la puntual distribución de germoplasma en vez de la ganancia genética. El análisis presentado aquí sugiere que con manejo cuidadoso la diversidad genética se puede conservar efectivamente a los largo de 20 generaciones de mejoramiento. No obstante, existe un conflicto fundamental entre la ganancia genética y la conservación genética. Consecuentemente, ningún programa de mejoramiento puede conservar toda la diversidad genética de procedencias locales (landrace) o especies y deben desarrollarse estrategias de manejo de recursos genéticos para resolver estos conflictos a través de decisiones informadas y explícitas. Se presentan algunas de tales estrategias correspondientes a diferentes niveles de énfasis o ganancia versus diversidad.--- [EN] Finding an equilibrium between genetic resources conservation and genetic improvement can be difficult. The problem is explored in this paper, partly through a case study of a participatory improvement programme of peach palm (Bactris gasipaes Kunth, Palmae), implemented in the Peruvian Amazon by the World Agroforestry Centre (ICRAF) and the Peruvian National Institute for Agricultural Research and Extension (INIEA). Peach palm, which was originally domesticated by Amerindians, produces a range of useful substance and marketable products, but today the fruit and heart-of-palm are the principal products. The characteristics of the clients (subsistence smallholders and agro-industrial plantation companies) for these crops and those of the ICRAF-INIEA project are described, and the impact on genetic diversity of future management options is explored. This is followed by a wider discussion of the relationships between genetic gain and maintenance of genetic diversity for improvement, and their implications. The ICRAF-INIEA programme was designed to emphasize genetic conservation and timely germplasm delivery rather than genetic gain. The analysis presented here suggests that, with careful management, genetic diversity can be effectively conserved through 20 generations of improvement. Nevertheless, there is a fundamental conflict between genetic gain and genetic conservation. Consequently, no improvement programme can conserve all of the genetic diversity of a landrace or species and genetic resource management strategies must be developed to resolve these conflicts through explicit and informed decisions. Some such strategies, corresponding to different levels of emphasis on gain versus diversity, are presented.
Carbon dynamics in slash and burn systems and land use alternatives: findings of the alternative to slash and burn programme
(Instituto Nacional de Innovación Agraria - INIA, 1998) Woomer, P. L.; Palm, C. A.; Alegre Horihuela, Julio; Castillo Cobella, Carlos; Cordeiro, D. G.; Hairiah, K.; Kotto Same, J.; Moukam, A; Ricse Tembladera, Auberto
Conversion of natural ecosystems to agriculture, particularly through tropical deforestation, is a major source of greenhouse gas emission into the atmosphere. Too often, fallow intervals become increasingly shortened or eliminated as land use intensifies in recently cleared forests resulting in a large net loss of total system carbon. Total system carbon (TSC) was calculated for 116 sites in the humid forest zones of S.E. Asia (Indonesia), Africa (Cameroon) and the Amazon (Brazil and Peru) based on estimates of tree, understorey and root biomass, surface necromass and soil organic carbon. The land use categories examined were original forests (10), managed and logged-over forests (9), recently burned croplands (IS), bush and young improved fallows (17), tree fallows (8), secondary' forests (8), pastures (9), /mpercra spp. grasslands (8). immature experimental agroforests (10) and mature agroforests and tree plantations (19). The land uses were arranged into chronosequences based upon land use transition and duration. TSC in a 20 year ’’traditional” slash-and-bum sequence were (t ha l): original forest (305) to burned cropland (52) to bush fallow (85) to tree fallow (136) to secondary forest (219). Logging reduced forest system carbon by 124 t ha '. Ten year-old pastures and 13 year-old Imperóla spp. grasslands contained less TSC than croplands (-4 and -5 t C ha , resDectively). Recently established agmforesrry systems contain more TSC than did croplands (+11 t C ha1). Mature agroforests (130 t C ha1) contained significantly greater TSC than croplands, pastures and grasslands (p<0.00l) but significantly less than secondary forests of similar age (p < 0.001). Soil organic carbon (SOC) represented 25% of the TSC stocks in original forests and 84%, 82% and 91% in croplands, pastures and Imperóla spp. grasslands, respectively. Aboveground C accounted for a majority of the loss from forests converted to croplands (82%) but the SOC content of croplands was also reduced by 17% to 35 t C ha1 (approximately 0-20 cm). Carbon sequestration rates were calculated for three land use patterns derivéd from croplands. Natural fellows re-accumulated 7.9 t C ha * yr‘ following land abandonment (r = 0.92). Agroforestry systems, established at the time of initial land clearing, sequestered 3.3 t C ha1 yr1 (r = 0.70) and pastures/grasslands tended to lose C at a slow rate (600 kg ha1 yr'1, n.s.). Land use systems where trees are planted and managed have greater potential to sequester C than field crops or pastures, but at sequestration rates less than those of natural succession.
Carbon sequestration and trace gas emissions in slash-and-burn and alternative land uses in the humid tropics
(ASB climate change working group, 1999-10) Palm, C. A.; Woomer, P. L.; Alegre Horihuela, Julio; Arévalo López, L.; Castillo Cobella, Carlos; Cordeiro, D. G.; Hairiah, K.; Kotto Same, J.; Njomgang, R.; Ricse Tembladera, Auberto; Rodrigues, V.; Van Noordwijk, M.
Alternatives to Slash-and-Burn Programme (ASB) were to determine those land-use systems that sequester more carbon and reduce trace gas emissions. The research consisted of three activities:1. Collect strategic information on changes in carbon stocks and land use, 2. Develop a database on trace gas fluxes from different land-use systems, and 3. Assess land rehabilitation techniques for increasing carbon sequestration. These activities were conducted through a collaborative effort involving numerous international and national partners. Research at the benchmark sites was done by EMBRAPA-Acre, EMBRAPA- Rondônia, CENA and ICRAF- Perú in Brazil; IRAD in Cameroon; and CRIFC-AARD, ICRAF, BIOTROP-GCTE Impact Centre Southeast Asia, and University of Brawijaya in Indonesia. In addition, ICRAF and INIA in Perú conducted crucial research on trace gas emissions. Modeling activities were led by Colorado State University. TSBF led the Climate Change Working Group and assisted with the design of standardized protocols, training, field measurements and the global synthesis.
Composición floristica post-quema en áreas degradadas por la agricultura en la Región Ucayali, Amazonia peruana
(Universidad Nacional Agraria La Molina. Facultad de Ciencias Forestales, 2007-02-01) Clavo Peralta, Zoyla Mirella; Roncal García, Sandra María; Ricse Tembladera, Auberto; Sabogal, César
[ES] la Región Ucayali es una de las más afectadas por los procesos de deforestación y degradación a causa principalmente de actividades agropecuarias y extractivistas. Estas actividades utilizan frecuentemente la quema como una forma de control de malezas, manejo de pasturas y limpieza del área para la siembra de cultivos, lo que ha originado cambios significativos en la vegetación local. El estudio que se describe objetiva caracterizar la composición florística y la dinámica postquema en parcelas afectadas por el fuego. Como parte de un ensayo instalado por el proyecto INIA· CIFOR "Adaptabilidad de seis especies forestales nativas en áreas degradadas por la agricultura" en terrenos de agricultores de la zona de Nueva Requena, las parcelas de evaluación (seis de 40 m x 40 m cada una ) se localizaron en los tres tipos principales de vegetación invasora que resultan de diferentes intensidades y continuidad de incendios. Estos tipos de vegetación son indicadores de tres niveles de degradación: ligera (con dominancia de Baccharis floribunda · "sachahuacal"), media (dominado por Rottboellia cochinchinensis ·"arrocillal") y alta (dominado por lmperata brasHiensis · "cashaucshal"). En un periodo de 62 meses se realiza ron seis mediciones para evaluar la diversidad florística a través del método del transecto y, en el caso de herbáceas, del método de Botanal. Se encontró que la mayor diversidad de especies se presentó en áreas con dominancia inicial de Baccharis floribunda, mientras que en áreas dominadas inicialmente por lmperata brasiliensis se tuvo la menor diversidad. Esta misma especie se mantuvo como la más dominante a los 62 meses, seguida de Baccharis floribunda y RottboeWa cochinchinensiso. Poaceae fue la familia con mayor diversidad de especies en todas las parcelas. la cobertura de los tres tipos de lugares degradados estuvo dominada por las herbáceas (con el 87%), siendo el "arrocillal" el que presentó el mayor número de árboles y el "sachahuacal" el que tuvo el mayor número de arbustos.--- [EN] The Ucayali Region, in the central part of the Peruvian Amazon, is one of the most affected by deforestation and degradation processes mainly caused by agricultura! and extractive activities. Fire is frequently used in these activities as a mean to control weeds, for pasture management and area clearing for cropping, causing significant changes in the local vegetation. The study described aims to characterize t he floristic composition and dynamics after fire in farmers' plots affected by fires. The plots (six, 40 m x 40 m each) were located in the three main types of invading vegetation resulting from different intensities and continuity of agricultura! fires. These types of vegetation are indicators of three levels of degradation: low (with dominance of Baccharis floribunda -••sachahuacal"), intermediate (dominated by Rottboellia cochinchinensis ·"arrocillal") and high (dominated by lmperata brasiliensis · ''cashaucshal"). The floristic diversity was evaluated over a period of 62 months using transects and, in the case of herbaceous vegetation, through the Botanal method. The highest species diversity was found in areas initially dominated by Bacchoris floribunda, whereas the lowest diversity was presented in areas initially dominated by lmperata brasiliensis. This species maintained itself as the most dominant alter 62 months, followed by Baccharis floribunda and Rottboellia cochinchinensiso. Poaceae was the family with the highest species diversity in all plots. The three types of degraded sites were mainly dominated by herbaceous vegetation (8 7% of plant cover). The site initially dominated by Rottboellia cochinchinensis presented the highest number of trees, and that dominated by Baccharis floribunda showed the highest number of shrubs .
Condiciones naturales del bosque húmedo tropical
(Instituto Nacional de Innovación Agraria - INIA, 1995) Ricse Tembladera, Auberto
Los bosques y las tierras de la zona tropical del mundo a través de la historia han estado sometidos a una utilización tradicional, o mejor dicho a la explotación de los recursos naturales, renovables y no renovables lo más rápido posible, sin tomar en cuenta las consecuencias a largo plazo, fundado por la creencia que de esta manera se logra rápidamente un desarrollo económico y social.
Desarrollo de tecnologías modernas para el procesamiento y uso de la madera producida por pequeños agricultores
(Instituto Nacional de Innovación Agraria - INIA, 2009) Ricse Tembladera, Auberto
Este documento es un estudio realizado para determinar el uso actual de la tierra y las áreas potenciales para reforestar además de identificar el uso de la madera según las necesidades del agricultor.
Ensayo de introducción y procedencias de Pinus - Eucalyptus - Cupresus - y especies nativas en el Cuzco
(Instituto Nacional de Investigación Agraria - INIA, 1987) Ricse Tembladera, Auberto
El documento muestra a las plantaciones forestales en el Cuzco con fines experimentales denominados “Ensayos de introducción y procedencia”, “Ensayo de humedad de especies nativas”, “Ensayo de espaciamiento, especialmente con especies exóticas como Eucalyptus, Pinus, y Cupresus”, así como especies nativas como queñua, chachacomo y colle.
Establecimiento y manejo de plantaciones forestales y frutales
(Instituto Nacional de Innovación Agraria - INIA, 1996-03) Ricse Tembladera, Auberto
El presente documento de investigación es una herramienta útil y valiosa para aprender correctamente la forma de sembrar árboles maderables, frutales y/o medicinales con el fin de poblar áreas degradadas por el uso intensivo de la tierra en diferentes fines.
Experiencias silviculturales en la Estación Experimental Alexander von Humboldt, Amazonia Peruana
(CIFOR, INIA, 1996) Angulo Ruíz, Walter Enrique; Vidaurre Arévalo, Héctor; Flores Bendezú, Ymber; Soudré, Manuel; Ricse Tembladera, Auberto
En los casi ocho años de trabajo del proyecto se establecieron diversos ensayos de plantaciones forestales con especies nativas y exóticas. Entre las especies nativas destacaron: tornillo ( Cedrelingo cotenoetormis). ishpingo (Amburana cearensis) y marupó (Simarouba omoro): Gmelino orboreo fue la especie exótica más promisorio de las ensayadas.El campo experimental del proyecto se sitúo en un bosque de 1500 ha. en los zonas ecológicas, bosque húmedo tropical. Se trata de un bosque que fue Intervenido en diversos ocasiones para extraer madero de especies comerciales; por eso es recorrido por una carretera afirmada de 20.7 km. actualmente transitables.
Métodos de rehabilitación de purmas y tierras degradadas en la región Ucayali, Amazonía Peruana - Informe de avances y logros
(Instituto Nacional de Innovación Agraria - INIA, 1999-07) Ricse Tembladera, Auberto
El presente documento muestra la selección de especies forestales de gran valor económico y/o ecológico, con capacidad para adaptarse a áreas abandonadas con suelos infértiles, luego del uso agrícola y pecuario. Los hábitats degradados más representativos, supervivencia y crecimiento en lugares con degradación representativa para la región Ucayali.
Migration patterns and land use by immigrants under a changing frontier society in the Peruvian Amazon
(Japan Soc Tropical Ecology, 2014-09-01) Ichikawa, Masahiro; Ricse Tembladera, Auberto; Ugarte, Julio; Kobayashi, Shigeo
One of main factors identified as explaining forest loss and degradation in the Selva (the Peruvian Amazon) is the migration of people from the Sierra (Andes highlands), where agricultural conditions are severe, to forest areas in the Selva in search of new land. This paper aims at clarifying the characteristics and process of migration based on interviews with local people near Pucallpa, Ucayali Department, where forest loss and degradation has advanced in recent decades. In the study area, forest loss and degradation progressed by commercial logging after construction of a road connecting between Lima and Pucallpa in 1943. After logging, stock-farming companies and immigrants entered the area, and land uses other than high forest have been expanding. Today, the study area is occupied by people who have immigrated since the 1960s. Many of them earned income by logging until the 1980s, while today almost of them make a livelihood by agriculture, stock farming, or tree planting. As a result of these economic activities, there are substantial areas of mixed shrubs and grass in the study area today. This paper clarifies two points. First, the majority of immigrants were born not in the Sierra, but in the Selva, for instance as part of the expanding population in the Departments of San Martin and Amazonas. The main stream of migration is from parts of the Selva where immigrants had started reclamation in earlier days to other parts of the Selva with still abundant forests (such as the study area). Second, most migrants were not born in a rural area, but in Pucallpa, a developing urban area in the Selva. Pucallpa is also an important place for step migrants who stayed there for a while and worked temporarily before immigrating to the study area. The urban area has gained an important role in migration to forests in the Selva as a place of birth of migrants and for its function in step migration.
Proyecto suelos tropicales - Informe anual 1993
(Instituto Nacional de Investigación Agraria - INIA, 1994) Ricse Tembladera, Auberto
El presente informe muestra las investigaciones realizadas por el INIA en diferentes regiones del país con el objetivo de promover tecnologías aplicables en el sector rural, a fin de contribuir a un buen manejo de los suelos tropicales.
Putting back the trees: smallholder silvicultural enrichment of post-logged concession forest in peruvian amazonia
(Springer Nature, 2012-10-16) Putzel, Louis; Padoch, Christine; Ricse Tembladera, Auberto
This paper presents a case of planting and management of natural regeneration of shihuahuaco (Dipteryx spp.) by recent migrants in a Peruvian Amazonian logging frontier. We interviewed residents of three communities of smallholders in Irazola District, Province of Padre Abad, Region of Ucayali, located within the historic and actual boundaries of an active logging concession, and conducted growth studies of shihuahuaco trees planted in two mixed-species agroforestry fields, over a period of 3 years. We found that the majority of landholders were managing the natural regeneration of valuable hardwood timber trees, and planting seedlings on their lands. Growth of shihuahuaco trees in agroforestry fields was comparable to growth rates in managed silvicultural plantations, which suggests the potential for local smallholders activities to contribute to conservation of genetic stock and eventual renewal of populations depleted by logging. We recommend greater recognition and inclusion of local people, with their innovative and productive silvicultural practices, in efforts to remediate the impacts of selective logging of high-value timber species
Rehabilitación de suelos forestales degradados en la zona de Alexander von Humboldt, Región Ucayali
(Universidad Nacional Agraria La Molina, 2007-02-01) Ricse Tembladera, Auberto; Alegre Horihuela, Julio
[ES] Se describe un estudio dirigido a demostrar un método para rehabilitar suelos degradados por efecto del corte y quema, utilizando técnicas de mejoramiento de suelos con abonos orgánicos y roca fosfórica asf como también con abonos verdes en plantaciones forestales en Ultisoles degradados del Bosque Alexander van Humboldt, en la región Ucayali. Una vez eliminada la deficiencia de fósforo (aplicación de roca fosfórica con 15% de P) en el suelo en estudio se encontró a los seis años de crecimiento un 100% de sobrevivencia y un significativo crecimiento en altura y diámetro para la especie forestal shihuahuaco (Dipteryx odorata) con la aplicación orgánica de humus de lombriz. Por otro lado, con la aplicación de compost vegetal los mayores porcentajes de sobrevivencía y crecimiento se dieron con tahuari amarillo (Tabebuia serraUfolia) y huayruro colorado (Ormosia schumkei). [EN] The study describes an experiment aiming to test a method for rehabilitating Ultisols degraded by slash and burn agriculture in the zone of Alexander von Humboldt, Ucayali Region. The method uses soil improvement techniques with organic manure, rock phosphate (source of 15% of phosphorous) and green manure with tree planting. After eliminating the P deficiency in the soil under study it was found after six years of establishment a 100% survival and a significant height and diameter growth for the tree species shihuahuaco (Dipteryx odorata) with the application of earthworm manure. On the other hand, with the application of compost the highest percentage of survival and growth rates were found in tahuari amarillo (Tabebuia serratifolia) and huayruro colorado (Ormosia schumkei).
Secondary succession of mixed plantations established to rehabilitate abandoned pasture in the Peruvian Amazon
(Japan Soc Tropical Ecology, 2014-09-01) Kobayashi, Shigeo; Soudre Zambrano, Manuel Antonio; Ricse Tembladera, Auberto
Secondary succession or facilitation processes carried out at sites established for rehabilitating abandoned pastures and degraded forests (prurmas) are instrumental in their return to original forest status. An understanding of these secondary succession processes contributes to the rehabilitation of degraded forest ecosystems and to the livelihoods of local communities, and aids in conserving biodiversity. We studied secondary succession in mixed species plantations that were established to rehabilitate abandoned land. The initial vegetation in these abandoned pastures and croplands was grassland composed of three dominant species: Rottboellia exaltata, Imperata brasiliensis, and Brachyaria decumbens. After tree planting and weeding had been carried out, the site was first invaded by R. exaltata and Baccharis floribunda. These two species, which depend solely on sexual and not vegetative reproduction, facilitated secondary succession and elevated species diversity by enabling subsequent invasion by several species. By contrast, B. decumbens, I. brasiliensis, and Hyparrhenia rufa depend mainly on vegetative reproduction involving rhizomes and tillers, and subsequent invasion by other species was relatively less in stand types dominated by these three species. We found that further adequate rehabilitation techniques were necessary for the respective vegetation types.
La selva alta del Perú, introducción de especies y procedencias forestales, nativas y exóticas
(Instituto Nacional de Innovación Agraria - INIA, 2015) Ricse Tembladera, Auberto
La selva alta del Perú se ubica en el Bosque Húmedo Pre Montano, situado entre 1400 a 2000 msnm, en el flanco de la vertiente oriental, por encima del rango de altitud de la llanura aluvial amazónica, por debajo de los bosques nublados. Constituye una transición entre las llanuras amazónicas y las cumbres nubladas.
Sintesis de experiencias de investigación en rehabilitación de áreas degradadas en la Amazonia peruana, con especial referencia a la Región Ucayali, y retos para el futuro
(Universidad Nacional Agraria La Molina. Facultad de Ciencias Forestales, 2007) Soudré, Manuel; Sabogal, César; Ricse Tembladera, Auberto
[ES] Se muestran los avances y desafíos de investigación en la temática de rehabilitación de áreas de degradadas (RAD) en la Amazonia Peruana, con énfasis en la región Ucayali. Se realizó un diagnóstico del acervo científico/tecnológico que rescata los esfuerzos para revertir las tierras degradadas hacia su uso como bosque, con base en la síntesis de una veintena de investigaciones, la mayor parte concluyentes, pero escasamente difundidas. los principales resultados fueron analizados en retrospectiva critica, identificando vados y pronosticando los lineamientos estratégicos que señalen la agenda pendiente. El avance en la investigación básica emprendida fue significativo y se subrayan los esfuerzos realizados en condiciones de suelos laterizados, con vegetación herbácea invasora, alta frecuencia de incendios e incluso con población proclive a actividades ganaderas. Bajo estas condiciones se determinó la supervivencia y crecimiento de numerosas especies arbóreas, aunque sólo un grupo reducido de éstas logró adaptarse. Una conclusión general es que la investigación participativa y transferencia recíproca de conocimientos en esta temática no fueron las más adecuadas. El artículo finaliza identificando algunos retos tecnológicos para la RAD.--- [EN] Past research experiences in the rehabilitation of degraded areas (RDA) in the Peruvian Amazon are synthesized, with emphasis in the Ucayali region. The diagnosis focused on the scientific and technological efforts carried out in the region to take stock of initiatives aiming at reversing degradation in forest lands to their original use as forest. The main results were analyzed retrospectively, identifying gaps and prognosticating the strategic guidelines to (re)orient the pending agenda. The progress in basic research was significant and efforts carried out under conditions of lateritic soils, invasive weed vegetation, high frequency of fires, and a population prone to livestock activities are highlighted. Under these conditions it was determined the survival and growth of various tree species, although only sorne of them could get adapted. One general condusion is that participatory research and knowledge transfer in this theme were not sufficiently adequate. Finally, the article highlights sorne technological challenges for RDA.
Sistema de producción continua y diversificada de alimentos, productos maderables y no maderables en agrobosques
(INIA. Dirección General de Investigación Agraria, 2005) Ricse Tembladera, Auberto
El documento muestra la investigación de métodos de utilización de suelos degradados a través de plantaciones forestales asociado con cultivos temporales y permanentes con el objetivo de optimizar el aprovechamiento del suelo, obtener ingresos económicos y lograr excedentes adicionales por la producción maderera.
Sistemas agroforestales en la región Ucayali
(Instituto Nacional de Investigación Agraria - INIA, 2003-07) Ricse Tembladera, Auberto
El manual presenta la importancia, clasificación, definiciones, sistemas promisorios, manejo y valoración económica, entre otros aspectos de los sistemas agroforestales.