Resultados de búsqueda - S9 (classification)

Assessing and projecting land use land cover changes using machine learning and artificial neural network models in Guder watershed, Ethiopia por Demessie, Sintayehu Fetene, Dile, Yihun T., Bedadi, Bobe, Tarkegn, Temesgen Gashaw, Bayabil, Haimanote Kebede, Dejene, Sintayehu Workeneh

“…Specifically, shrubland will decrease from 12.4 % in 2021 to 10.1 % in 2039 and 8.7 % in 2057, grassland from 4.8 % in 2021 to 1.9 % in 2039 and 1.1 % in 2057, and forest from 9.0 % in 2021 to 8.9 % in 2039 and 7.9 % in 2057. …”
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Limitations of using simple indicators for evaluating agricultural emission reductions at farm level — evidence from Kenyan smallholder dairy production por Luedeling, Eike, Whitney, Cory W., Wilkes, Andreas, Aynekulu, Ermias, Rosenstock, Todd S.

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Discriminating Robusta coffee (Coffea canephora) cropping systems using leaf-level hyperspectral data por Kebede, G., Mudereri, B.T., Abdel-Rahman, E.M., Mutanga, O., Landmann, T., Odindi, J., Motisi, N., Pinard, F., Tonnang, H.E.Z.

“…A selection of critical variables (NSB = 9 and VIs = 8) was identified through the guided regularized random forest (RF) technique and then applied to four ML algorithms—RF, stochastic gradient boosting (GB), linear discriminant analysis, and support vector machine for classification experiments. …”
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El desarrollo del potencial agrícola en los trópicos húmedos de la América Central por Plath, C.V.

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Accuracy assessment of the geomorphon approach to detect ecological sites in the Dry Chaco region of Argentina por Coria, Rubén Darío, Brungard, Colby, Vizgarra, Lidia Amanda, Moretti, Lucas Martin, Schulz, Guillermo, Rodriguez, Dario Martin

“…We determined that the geomorphon model with the pixel resolution of 30 m, t-value of 0.05◦, and L-value of 12 produced the ecological site classification map with the highest accuracy, achieving a moderate-high accuracy (D of 33.9 %). …”
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The complete genome sequence of a divergent grapevine virus I isolate naturally infecting grapevine in Greece por Lotos, Leonidas, Ruiz-García, Ana B., Panailidou, Polina, Olmos, Antonio, Katis, Nikolaos, Maliogka, Varvara

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Fertility in Zebu cattle (Bos indicus) after prostaglandin administration and artificial insemination por Rekwot, P.I., Oyedipe, E.O., Mukasa-Mugerwa, E., Sekoni, V.O., Akinpelumi, O.P., Anyam, A.A.

“…Fertility classification of the cows based on progesterone (P4) concentration showed that 6.6 percent of cows on the three farms were incorrectly diagnosed as having corpora lutea; 2.9 percent of them had incomplete luteolysis and 5.1 percent may have lost their embryos between days 21 and 45 post-insemination. …”
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The global mangrove watch - a New 2010 global baseline of mangrove extent por Bunting, P., Rosenqvist, A., Lucas, R.M., Rebelo, Lisa-Maria, Thomas, N., Hardy, A., Itoh, T., Shimada, M., Finlayson, C. Max

“…The methodology developed is primarily based on the classification of ALOS PALSAR and Landsat sensor data, where a habitat mask was first generated, within which the classification of mangrove was undertaken using the Extremely Randomized Trees classifier. …”
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2019 Social Accounting Matrix for Malawi por International Food Policy Research Institute

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2019 Social Accounting Matrix for Malawi por International Food Policy Research Institute

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Performance indices of the West African Dwarf goat under an improved management system in the subhumid zone of Nigeria por Iji, P.A., Umunna, N.N., Alawa, J.P., Ikwuegbu, O.A.

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Sustainability in the Food-Water-Ecosystem Nexus: The Role of Land Use and Land Cover Change for Water Resources and Ecosystems in the Kilombero Wetland, Tanzania por Leemhuis C., Thonfeld F., Näschen K., Steinbach S., Muro J., Strauch A., López A., Daconto G., Games I., Diekkrüger B.

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Data on the Land Cover Transition, Subsequent Landscape Degradation, and Improvement in Semi-Arid Rainfed Agricultural Land in North–West Tunisia por Shiri, Zahra, Frija, Aymen, Rejeb, Hichem, Ouerghemmi, Hassen, Le, Quang Bao

“…For the three main LC classes (forest, crops, and rangeland) representing 98.9% of the total area in 2022, the landscape metrics, especially the number of patches, reflected a 105% increase in landscape fragmentation between 2017 and 2022.…”
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Properties of the structures created by ecosystem engineers on the soil surface of a Colombian savanna por Decaëns, Thibaud, Galvis, JH, Amézquita Collazos, Edgar

“…Three categories were also identified: (1) earthworm casts characterized by high bulk density (1.3-1.4 g/cm3), large aggregates (7-10 mm), high organic C contents (3%-4%), and assimilable nutrients; (2) termite mounds with low bulk density (0.6-0.9 g/cm3), large aggregates (8-9 mm), high organic C contents (3.5%-10%), and assimilable nutrients; and (3) slightly compact (0.4-0.7 g/cm3) and granular (aggregate size <1.5 mm) termite surface channels and ant nests, with low organic C contents (less than 1.5%) and assimilable nutrients. …”
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Estimation of nitrogen flow within a villagefarm model in Fakara region in Niger, Sahelian zone of West Africa por Hayashi, K., Matsumoto, N., Hayashi, E., Abdoulaye, Tahirou, Shinjo, H., Tabo, Ramadjita, Matsunaga, R., Tobita, S.

“…Levels of nitrogen flow from these farmlands to the studied villages were 0.9, 2.9, 9.6, 15.2, and 94.2 Mg, while the flows to these farmlands were 14.6, 6.3, 13.7, 17.5, and 26.3 Mg, respectively. …”
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2015 Social Accounting Matrix for Vietnam por International Food Policy Research Institute

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Cooperation and the management of local common resources in remote rural communities por Ward, Patrick S., Alvi, Muzna, Makhija, Simrin, Spielman, David J.

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The global spectrum of plant form and function enhanced species-level trait dataset por Casanoves, Fernando, y más de 7 autores

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Agriculturización en la cuenca alta del Río Luján por Tenti Vuegen, Leonardo Mauricio, Montes Galbán, Eloy, Bonvecchi, Virginia E., Trabichet, Florencia, Wagner, María Valeria

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What should be the focus of agricultural policy reforms in Sub-Saharan Africa? A CGE analysis por Balié, Jean, Narayanan, Badri

“…For this study, we employ a novel and uniquely developed dataset on these policies in Sub-Saharan Africa (SSA), to analyse the impact of policy reforms, using the latest available GTAP 9.1 Data Base, in the widely employed GTAP framework, for the first time. …”
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