نتایج جستجو برای: physiographic conditions
تعداد نتایج: 848738 فیلتر نتایج به سال:
Simplifications used in regional climate models decrease the accuracy of the regional climate models. To overcome this deficiency, usually a statistical technique of MOS is used to improve the skill of gridded outputs of the Numerical Weather Prediction (NWP) models. In this paper, an experimental synoptic-climatology based method has been used to calibrate, and decrease amount of errors in GFS...
This study investigates the role of man-made disturbance on on nitrogen and phosphorus nutrient storage by herbaceous species in Gall Oak stands of Lorestan province. In order to do this study, two sites with the same physiographic and ecological conditions and different land uses were selected. Multiscale sampling plots were used randomly in each site to collect data on forest floor vegetation...
Forestry practices produce intense alterations on soil processes, which in turn could lead to more intense transformations of the system in relation to the availability of resources. From this point of view we conducted research in the critical Mediterranean environment of central Spain to check if length of time-rotation on chestnut (Castanea sativa Mill.) coppice stand allows recovery towards...
A river flow regime describes an average seasonal behaviour of flow and reflects the climatic and physiographic conditions in a basin. Differences in the regularity (stability) of the seasonal patterns reflect different dimensionality of the flow regimes, which can change subject to changes in climate conditions. The empirical orthogonal functions (EOF) approach can be used to describe the intr...
Oxidation of Cr(III) and reduction of Cr(VI) can occur simultaneously in aerobic soils, but the mechanisms involved are not well-understood, especially how electron shuttling by redox-active organic acids is involved. A and B soil horizons from three topohydrosequences from the Coastal Plain and Piedmont physiographic provinces of Maryland were chosen to investigate oxidation-reduction transfor...
Looping patterns, where channels divide and reconnect further downstream, are widespread in natural rivers. Here, we build an extensive dataset of different gravel-bed sand-bed rivers around the world encompassing a wide range physiographic sedimentological conditions. Field data show existence quasi-universal relations for anabranches length when scaled with bankfull hydraulic geometry variabl...
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