Resultados de búsqueda - "Chang’an"

Harnessing benefits from improved livestock water productivity in crop-livestock systems of sub-Saharan Africa: synthesis por Amede, Tilahun, Descheemaeker, Katrien K., Peden, Donald G., Rooyen, Andre F. van

“…Livestock keeping is the fastest growing agricultural sector, partly because of increasing and changing demands for adequate, quality and diverse food for people, driven by growing incomes and demographic transitions. …”
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Impacts of Fair Trade-Certified Coffee in Nicaragua,Brazil, Honduras, and Peru: Implications for livelihoods and empowerment of farm workers and independent smallholder producers. por Río Duque, Martha Lilia del, González, Carolina, Córdoba, Diana M., Howland, Fanny C., Gutiérrez, Natalia, Lundy, Mark M.

“…Based on FTUSA concepts and principles related to independent smallholder producers’ (IS) and farm workers’ (FW) welfare and empowerment, and the Theory of Change (ToC) of FT4All pilots an assessment of the efectiveness of this ToC was conducted by the International Center for Tropical Agriculture (CIAT) through the research project “Measuring and assessing impacts of Fair Trade for All on farmers, farm workers, and the overall Fair Trade market system,” supported by the Ford Foundation and Keurig Green Mountain.…”
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On-farm demonstration, testing and dissemination of boiling water treatment for plantain (Musa spp.) sucker sanitation in Southern Cameroon por Hauser, A., Amougou, D., Bengono, B., Ngo Kanga, F., Pekeleke, M.

“…Unlike distributing new germplasm, new technologies need to be taught to farmers, their positive effects need to be demonstrated and farmers may have to accept behavioral changes in order to adopt. In the current case, there is the additional need to convince farmers of the need for a radical treatment to be administered to a commodity in short supply. …”
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Household Survey Data on Cost Benefit Analysis of Climate-Smart Soil Practices in Western Kenya por Karanja Ng'ang'a, Stanley, Mwungu, Chris Miyinzi, Mwongera, Caroline, Kinyua, Ivy Wambui, Notenbaert, An Maria Omer, Girvetz, Evan Hartunian

“…These practices could, in turn, boost food production, income, and households’ ability to adapt to climate change. Variables collected include: 1) general information about each site, 2) household age, gender, education level, and farming experience, 3) farm activities (without intervention), 4) implemented CSS practices such as the use of improved seeds, agroforestry, inorganic fertilisers, liming, and organic manure socio economic characteristics, and farm output, 5) crop and livestock yields, prices for farm inputs and outputs, the cost of implementing farm activities (both before and after intervention), 7) household financial information and, 8) environmental effects. …”
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Improving the accuracy of remotely sensed irrigated areas using post-classification enhancement through UAV [Unmanned Aerial Vehicle] capability por Nhamo, Luxon, Dijk, R. van, Magidi, J., Wiberg, David A., Tshikolomo, K.

“…Although advances in remote sensing have enhanced mapping and monitoring of irrigated areas, producing accurate cropping information through satellite image classification remains elusive due to the complexity of landscapes, changes in reflectance of different land-covers, the remote sensing data selected, and image processing methods used, among others. …”
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Anthropogenic Decline of Ecosystem Services Threatens the Integrity of the Unique Hyrcanian (Caspian) Forests in Northern Iran por Zarandian, A., Baral, H., Yavari, A.R., Jafari, H.R., Stork, N.E., Ling, M.A., Amirnejad, H.

“…The results indicate the current typical spatial distribution of the provided services based on structural characteristics of the study landscape and their changing trends through a comparison of past, present and future land use, and land cover. …”
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Reframing the concept of alternative livelihoods por Wright, J.H., Hill, N.A.O., Roe, D., Rowcliffe, J.M., Kümpel, N.F., Day, M., Booker, F., Milner-Gulland, E.J.

“…Rather than using livelihood‐focused interventions as a direct behavior‐change tool, it may be more appropriate to focus on either enhancing the existing livelihood strategies of those most vulnerable to conservation‐imposed resource access restrictions or on use of livelihood‐focused interventions that establish a clear link to conservation as a means of building good community relations. …”
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Roots, Tubers and Bananas Contributions to Food Security Article por Kennedy, Gina, Raneri, Jessica Evelyn, Stoian, Dietmar, Attwood, Simon, Burgos, G., Ceballos, Hernán, Ekesa, Beatrice, Johnson, Vincent, Low, Jan W., Talsma, Elise F.

“…Threats from pests and disease to which these crops are susceptible are among the largest concerns. The impact of changing climate on resistance to disease/pest threats as well as yield and longer-term sustainability issues is also of concern. …”
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Biological control of an invasive pest eases pressures on global commodity markets por Wyckhuys, Kris A.G., Zhang, Wei, Prager, Steven D., Kramer, D.B., Delaquis, Erik, Gonzalez Rodriguez, Carlos Eduardo, Werf, W. van der

“…As Thailand is a vital exporter of cassava-derived commodities to China and supplies 36% of the world's internationally-traded starch, yield shocks triggered price surges and structural changes in global starch trade. In 2009 a biological control agent was introduced in Asia-the host-specific parasitoid, Anagyrus lopezi (Hymenoptera: Encyrtidae). …”
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The genome landscape of Tibetan sheep reveals adaptive introgression from argali and the history of early human settlements on the Qinghai-Tibetan Plateau por Xiao-Ju Hu, Ji Yang, Xing-Long Xie, Feng-Hua Lv, Yin-Hong Cao, Wen-Rong Li, Ming-Jun Liu, Yu-Tao Wang, Jin-Quan Li, Yong-Gang Liu, Yan-Lin Ren, Zhi-Qiang Shen, Han Jianlin, Meng-Hua Li

“…However, the precise timing, route, and process of sheep pastoralism in the QTP region remain poorly established, and little is known about the underlying genomic changes that occurred during the process. Here, we investigate the genomic variation in Tibetan sheep using whole-genome sequences, single nucleotide polymorphism arrays, mitochondrial DNA, and Y-chromosomal variants in 986 samples throughout their distribution range. …”
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The effect of irrigation service delivery and training in agronomy on crop choice in Tajikistan por Buisson, Marie-Charlotte, Balasubramanya, Soumya

“…This analysis is motivated by the government’s recent efforts to address the country’s severe malnutrition problem by supporting changes in irrigation service delivery and agronomy to increase diversity in agricultural production and consumption, in an environment where the cultivation of cotton had, until recently, been mandatory. …”
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Landscape approach to assess key soil functional properties in the highlands of Cameroon: Repercussions of spatial relationships for land management interventions por Takoutsing, B., Martín, J.A.R., Weber, John C., Shepherd, Keith D., Sila, Andrew M., Tondoh, Jérôme E.

“…However, despite the growing worldwide emphasis on integrated landscape management, soil variations resulting from land use changes have rarely been documented. The study used the land health surveillance concept in combination with simple geostatistical approaches to describe key soil properties among land use types and characterize their spatial variability in the highlands of Cameroon. …”
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Preparedness or repeated short-term relief aid?: building drought resilience through early warning in southern Africa por Nhamo, Luxon, Mabhaudhi, Tafadzwanashe, Modi, Albert Thembinkosi

“…This study assesses the spatio-temporal changes of rainfall and aridity in southern Africa through an analysis of long-term precipitation and evaporation trends from 1960 to 2007. …”
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Mapping Genetic Diversity of Cherimoya (Annona cherimola Mill.): Application of Spatial Analysis for Conservation and Use of Plant Genetic Resources por Van Zonneveld, Maarten J., Scheldeman, Xavier, Escribano, Pilar, Viruel, María A., Van Damme, Patrick, García, Willman, Tapia, César, Romero, José, Sigüeñas Saavedra, Segundo Manuel, Hormaza, José I.

“…Diversity is also crucial for species to adapt to environmental changes. This paper explores the possibilities of incorporating molecular marker data into Geographic Information Systems (GIS) to allow visualization and better understanding of spatial patterns of genetic diversity as a key input to optimize conservation and use of plant genetic resources, based on a case study of cherimoya (Annona cherimola Mill.), a Neotropical fruit tree species. …”
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Endophytic fungi from Peruvian highland and lowland habitats form distinctive and host plant-specific assemblages por Unterseher, Martin, Gazis, Romina, Chaverri, Priscila, García Guarniz, Carlos Fernando, Zavaleta Tenorio, Diógenes Humberto

“…Findings from this study promote the formulation of hypotheses related to the effect of altitudinal changes on the endophytic communities along the Eastern Andean slopes. …”
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Effectiveness of protected areas in containing the loss of Peruvian Amazonian forests por Rojas Briceño, Nilton B., Cajas Bravo, Verónica, Pasquel Cajas, Alexander, Guzman Valqui, Betty Karina, Silva López, Jhonsy O., Veneros, Jaris, García, Ligia

“…An Effectiveness Index (EI) was constructed by adding five standardized parameters: (1) the percentage of deforested area (DA%) and (2) its annual rate of change (DAr) between 2000 and 2022 inside each NPA, (3) the difference in DAr between NPAs and their surrounding areas, (4) their corresponding ecoregions, and (5) the entire PAF. …”
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Development and phenotypic characterization of a native Theobroma cacao L. germplasm bank from the Loreto region of the Peruvian Amazon: Implications for ex situ conservation and g... por Imán Correa, Sixto Alfredo, Samanamud, Angelo F., Ramírez , José F., Cobos, Marianela, Paredes, Cleydi, Castro, Juan C.

“…Introduction: The ex situ conservation and characterization of native Theobroma cacao L. genetic resources are critical for sustainable cacao production and breeding programs in the face of climate change and escalating disease pressures. This study aimed to establish and characterize a novel germplasm bank from the Loreto region of the Peruvian Amazon, a key center of cacao diversity. …”
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UAV Flight Orientation and Height Influence on Tree Crown Segmentation in Agroforestry Systems por Baselly Villanueva, Juan Rodrigo, Fernández Sandoval, Andrés, Pinedo Freyre, Sergio Fernando, Salazar Hinostroza, Evelin Judith, Cárdenas Rengifo, Gloria Patricia, Puerta, Ronald, Huanca Diaz, José Ricardo, Tuesta Cometivos, Gino Anthony, Vallejos Torres, Geomar, Goycochea Casas, Gianmarco, Álvarez Álvarez, Pedro, Ismail, Zool Hilmi

“…Although YOLOv8 achieved the highest precision under optimal conditions, it exhibited greater variability with changes in flight geometry. In contrast, YOLOv11 showed a more stable and robust performance, with generalization gaps below 0.02, reflecting a stronger adaptability to different acquisition conditions. …”
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The role of glucose in the pathology of EHEC O157: H7 por Marques Da Silva, Wanderson, Taibo, Catalina Beatriz, Sabio Y Garcia, Julia Veronica, Larzabal, Mariano, Cataldi, Angel Adrian

“…During the colonization process in the gastrointestinal tract, EHEC needs to adapt to changes in nutrient availability [2]. The objective of this study was to evaluate the influence of glucose on physiology and processes involved in the pathogenesis of EHEC O157: H7 in order to improve our understanding of the mechanisms controlling EHEC growth and survival in the bovine gut. …”
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Survival and growth of Nothofagus pumilio seedlings under several microenvironments after variable retention harvesting in southern Patagonian forests por Martínez Pastur, Guillermo José, Soler Esteban, Rosina Matilde, Cellini, Juan Manuel, Lencinas, María Vanessa, Peri, Pablo Luis, Neyland, Mark Geoffrey

“…Tested hypotheses stated that seedling stress and performance were influenced by harvesting due to changes in forest structure, microclimate, soil properties, and nutrient availability. …”
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