Resultados de búsqueda - "topographical"

Structure and spatial patterns of trees in old-growth northern hardwood and mixed forests of northern Maine por Chokkalingam, U., White, A.

“…Recent small-scale disturbance events and topographic position appear to be important in explaining current structure and dynamics of the hardwood and mixed forests of Big Reed Forest Reserve in northern Maine. …”
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Management aspects of water and land resources in the Reventazon river basin - Costa Rica por Mojica, I.H.

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Modified BEAM rubber agroforestry models: RRYIELD and RRECON por Grist, P., Menz, K., Thomas

“…It focuses on the changes in output (latex, wood and intercropped annual and perennial crops) in response to a number of bioclimatic, topographic and silvicultural variables. Outputs are measured annually over the life of the plantation. …”
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A simple method to account for topography in the radiometric correction of radar imagery por Leclerc, Gregoire, Beaulieu, Nathalie, Bonn, F

“…The method is applied to high-resolution C-SAR subsets of an agricultural area in the Central Cordillera of Costa Rica. The removal of topographic features appears excellent for local incident angles up to 80 degrees, but small-scale structures have pronounced effects on the radar return for higher local incident angles and are not adequately corrected.…”
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Effect of conventional bridges on deer-vehicle accidents por Alves, Bruno

“…I used official accident data from roads for 2008-2010 and from railways for 2001-2010, data on bridges and infrastructure together with digital topographic information, and estimates of regional abundances of moose (Alces alces) and roe deer (Capreolus capreolus) to develop generalized linear models of the parameters influencing the occurrence of deer-vehicle collisions. …”

Rainfall and Elevation Influence the Local-Scale Distribution of Tree Community in the Southern Region of Western Ghats Biodiversity Hotspot (India) por Joseph, S., Anitha, K., Srivastava, V.K., Reddy, C.S, Thomas, A.P., Murthy, M.S.R.

“…The present study characterises the tree communities with respect to topographic and climatic variables and identifies the most important environmental correlate of species richness in the southern region of Western Ghats Biodiversity Hotspot, India. …”
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Shallow groundwater dynamics in the Pampas: Climate, landscape and crop choice effects por Mercau, Jorge Luis, Nosetto, Marcelo Daniel, Bert, Federico Esteban, Giménez, Raúl, Jobbagy Gampel, Esteban Gabriel

“…Groundwater depth varies across space, following landscape topographic features; through time, accompanying climate fluctuations; and may also shift in both dimensions in response to crop choice. …”
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State of Climate in Ethiopia 2021 por Teshome, Asaminew, Demissie, Teferi Dejene

“…The country's topography comprises high and rugged plateaus and the peripheral lowlands. From a topographic viewpoint, the country confines the Great African Rift Valley that bisects Ethiopia into the eastern and western escarpments. …”
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Species distribution models: ecological explanation and prediction of an endemic and endangered plant species (Pterocarpus santalinus L.f.). por Babar, S., Amarnath, Giriraj, Reddy, C.S, Jentsch, A., Sudhakar, S.

“…To understand its ecological and geographic distribution, we used ecological niche modelling (ENM) based on field sample-based distributional information, in relation to climatic and topographic datasets. Before modelling, hierarchical partitioning was used to optimize the choice of variables for better prediction and reliability. …”
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Digging, damming or diverting? small-scale irrigation in the Blue Nile basin, Ethiopia por Eguavoen, I., Derib, S.D., Deneke, T.T., McCartney, Matthew P., Otto A, Billa S

“…The diversity of irrigation infrastructure is partly a consequence of the topographic heterogeneity of the plains, as well as a range of other biophysical factors. …”
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Determinación del aporte de los sistemas agroforestales con cacao a las familias productoras, en cinco municipios en los departamentos de Cortés y Yoro, Honduras por Martínez Martínez, Carlos Armando

“…The agro forestry systems presented variability in their floristic composition due to topographic and altitude conditions as well as size of farms among others. …”
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Multicriteria evaluation and remote sensing approach to identifying degraded soil areas in northwest Peru por Arce Inga, Marielita, Atalaya Marin, Nilton, Barboza Castillo, Elgar, Tarrillo Julca, Ever, Chuquibala Checan, Beimer, Tineo Flores, Daniel, Fernandez Zarate, Franklin Hitler, Cruz Luis, Juancarlos Alejandro, Goñas Goñas, Malluri, Gómez Fernández, Darwin

“…Nine factors were analyzed classified three categories: environmental, topographic, and edaphological factors. The results revealed that the slope (59.07%) was the main influencing factor, followed by land use and land cover (LULC) (56.36%). …”
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Markfuktighetsförhållanden och jordartsfördelningens påverkan på kväve- och fosforförluster från skog och sankmark por Dacke, Eleonor

“…Vidare testades om statistiska samband kunde identifieras mellan Topographic wetness index (TWI), Depth-to-water index (DTW) och jordartsfördelning i områdena med de uppmätta halterna av TN och TP. …”

Digging, damming or diverting?: small-scale irrigation in the Blue Nile Basin, Ethiopia por Eguavoen, I., Derib, S.D., Deneke, T.T., McCartney, Matthew P., Otto, B. A., Billa, S.S.

“…The diversity of irrigation infrastructure is partly a consequence of the topographic heterogeneity of the Fogera plains. Despite similar social-political conditions and the same administrative framework, irrigation facilities are established, used and managed differently, ranging from informal arrangements of households and 'water fathers' to water user associations, as well as from open access to irrigation schedules. …”
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Estimating pond storage capacity using remote sensing and GIS: A case study in Zhanghe irrigation scheme, southern China por Xueliang Cai, Yuanlai Cui, Dong, B.

“…One is to estimate pond storage capacity as a function of the topographic factors. An indicator, PV, pond storage capacity per unit rice area of 86 villages, is calculated, and then the correlation between PV, slope, altitude and drainage density is calculated to estimate the pond storage capacity of whole study area. …”
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Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): morpho-geological constraints on chemical erosion por Momo, M.N., Beauvais, A., Tematio, P., Yemefack, Martin

“…Our results document that chemical weathering of a larger thickness of trachyte than basalt has been required to form a unit meter of weathering profile, implying differential rates of rock chemical erosion and topographic decay of landscapes. Rates of chemical erosion and formation of lateritic weathering profiles in western Cameroon have been mostly controlled by drainage conditions and volcanic rocks composition (mostly SiO2 content differences), that also resulted in contrasted landscapes evolution during the Neogene.…”
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Recommendations for the regionalizing of coffee cultivation in Colombia: a methodological proposal based on agro-climatic indices por García López, Juan Carlos, Posada Suárez, Húver, Läderach, Peter R.D.

“…Twenty-one bioclimatic indicators were drawn from this baseline data and from yield data for different coffee genotypes evaluated under conditions at eight experimental stations (ESs) belonging to the National Center for Coffee Research (CENICAFÉ). Three topographic indicators were obtained from a digital elevation model (DEM). …”
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Unintended effects of urbanization in China: Land use spillovers and soil carbon loss por Li, Man, Wu, JunJie, Deng, Xiangzheng

“…This paper uses a national-level geographic information system database on land use, weather conditions, land quality, soil organic carbon (SOC), topographic features, and economic variables to analyze the major drivers of land use change and the resulting impact on soil carbon storage in China. …”
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The influence of vegetation pattern on the productivity, diversity and stability of vegetation: The case of 'brousse tigree' in the Sahel por Hiernaux, Pierre H.Y., Gerard, Bruno G.

“…These observations and the well-defined climatic, soil and topographic situations under which the 'brousse tigree' occurs invalidate the hypothesis of an anthropic origin of that vegetation pattern.…”
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TRMM rainfall correction over the Andean Plateau using wavelet multi-resolution analysis por Heidinger, Haline, Yarleque, C., Posadas, A., Quiróz, R.

“…Rainfall estimates from the TRMM satellite exhibit inaccuracies over topographically complex regions, thus warranting suitable corrections. …”
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