Search Results - "Andes"

Driving factors of agrobiodiversity: which characteristics influence intra-household potato diversity in the peruvian Andes?. by Luttringhaus, S., Polreich, S., Pradel, W., Suarez, V., Haan, Stef de

Subjects: “…andes…”
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Climate compatible development strategies for resilience to climate change in the Andes and beyond by Mulligan, M., Soesbergen, Arnout van

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Climate change in the Andes: predictions, perceptions and adaptation by peruvian rice farmers by Useche, Pilar, Anglade, Boaz, Muriel, Juliana, Twyman, Jennifer

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Impacts of forests and forestation on hydrological services in the Andes: A systematic review by Bonnesoeur, V., Locatelli, Bruno, Guariguata, Manuel R., Ochoa-Tocachi, Boris F., Vanacker, V., Zhun, M., Stokes, A., Mathez Stiefel, S.L.

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Impacts of forestation on water and soils in the Andes: What do we know? by Bonnesoeur, V., Locatelli, Bruno, Ochoa-Tocachi, Boris F.

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Phylogenetics and Evolution of Potato Virus V: Another Potyvirus that Originated in the Andes by Fuentes, S., Gibbs, A.J., Adams, I.P., Hajizadeh, M., Kreuze, Jan F., Fox, A., Blouin, A.G., Jones, R.A.C.

“…Thus the independent historical coincidences supporting the datings of the PVV and PVY phylogenies are the same; PVV arose ≥2,000 years ago in the Andes and was taken to Europe during the Columbian Exchange, where it diversified around 1853 ce, soon after the European potato late blight pandemic. …”
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Socioeconomic and technical considerations to mitigate land and water degradation in the Peruvian Andes by Torero, M., Zegarra, E., Pender, J.L., Maruyama, Eduardo, Keefe, M., Stoorvogel, J.J.

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Programa desafío del agua y la alimentación (CPWF) - Andes by Miguel, S.

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Water scarcity in the tropical Andes: Population growth outweighs climate change by Buytaert, Wouter, Bievre, B. de

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Effects of conservation tillage on total and aggregated soil organic carbon in the Andes by Quintero, Marcela, Comerford, N.B.

“…Many Andisols of the Andes have been disturbed by traditional potato-based rotation agriculture disrupting soil structure, water retention capacity and organic matter content.This study was undertaken to investigate the contribution of conservation farming technology or reduced tillage in potato-based rotations in the Colombian Andes in order to rehabilitate total and aggregated soil organic C in disturbed organic matter-rich Andisols.Soils were sampled from farms with 7-year of reduced tillage and farms with conventional farming practices.Ultrasound energy was applied to samples to disrupt aggregation and total soil C was determined in order to investigate the amount of carbon held inside the aggregates of different soil size classes.Results indicated that reduced tillage in potato-based crop rotations increased the soil C concentration and average C content in the whole profile (≈117 cm depth) by 50 and 33% (1636 t C ha -1 vs. 1224 t C ha -1 ), respectively, as compared to conventional farming practices.Carbon content increased 177% in the subsoil (A2 horizon, 78 -117 cm depth, from 215 to 596 t•ha -1 ), although most of the soil C was in the A1 horizon (between 0 -78 cm average thickness, 1097 t•ha -1 ).These increases show that reduced tillage enhances C stores in Andisols which are already high in organic matter.In addition, C in aggregates represented more than 80% of the total organic matter and it was positively affected by conservation practices.The C increase was preferential in the smaller macroaggregates (<2 mm).The aggregate dispersion energy curves further suggested that C increase was occurring in microaggregates within the smaller macroaggregate fraction.Data suggested that smaller macroaggregates can be used in these soils to evaluate the influence of field management practices on soil C sequestration.…”
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The Participatory market chain approach (PMCA): from the Andes to Africa and Asia. by Devaux, A., Ordinola, M., Mayanja, S., Campilan, D., Horton, D.

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Dynamics and definitions of poverty in the Colombian Andes: Participative vs objective approaches by Peralta, A., García C., J.A., Johnson, Nancy L.

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The Participatory Market Chain Approach (PMCA): From the Andes to Africa and Asia. by Devaux, A., Ordinola, M., Mayanja, S., Campilan, D., Horton, D.

“…This approach was developed and first applied in the Andes, to increase the competitiveness of potato market chains and improve the livelihoods of small farmers. …”
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Carbon storage in a high-altitude Polylepis woodland in the Peruvian Andes by Vásquez, E., Ladd, Brenton, Borchard, Nils

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Current diversity of Phytophthora infestans infecting cultivated potato in the Peruvian Andes by Astete, A., Pérez, W., Gamboa, S., Lindqvist-Kreuze, H.

“…To understand the current P. infestans population structure in the Peruvian Andes, 701 single-lesion samples were collected from cultivated potato in different agroecological zones at 2016-2017. …”
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Enteric methane emissions by lactating and dry cows in the high Andes of Peru by Salas Riega, Catherine Yasmín, Osorio Orellana, Sandra, Gamarra Reyes, Julyssa del Pilar, Alvarado Bolovich, Victor Ilich, Osorio Zavala, Cesar Mauro, Gomez, Carlos A.

Subjects: “…High Andes…”
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Control químico del gorgojo de los Andes: Premnotrypes spp. by Estela Livia, Zofía Honorata

Subjects: “…Gorgojo de los Andes…”
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Seasonal and dietary effects on the hematobiochemical parameters of creole goats in the Peruvian Andes by Rodriguez Vargas, Anibal Raul, Sessarego Davila, Emmanuel Alexander, Castañeda Palomino, Katherine, Ormachea Sanchez, Huziel Héctor, Trillo Zarate, Fritz Carlos, Temoche Socola, Victor Alexander, Ruiz Chamorro, José Antonio, Cruz Luis, Juancarlos Alejandro

“…This study assessed seasonal and dietary influences on the hematological and biochemical profiles of 45 Creole goats in the Peruvian Andes. The animals were assigned to three diets: D1 (grazing), D2 (grazing + 2000 g hay), and D3 (grazing + 400 g concentrate), across rainy and dry seasons. …”
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Ensayos de especies forestales en los andes del Perú by Aguirre, A., Rocca, Leopoldo

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A social-ecological network analysis of Argentinean Andes transhumant pastoralism by Easdale, Marcos Horacio, Aguiar, Martín Roberto, Paz, Raúl

“…Se estudió el sistema regional transhumante con un enfoque de red en los Andes de la Patagonia Norte, Argentina.…”
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