The effect of watershed spatial scale on chemical weathering is inadequately known for subtropical environments. In order to determine the relationship between watershed scale and weathering chemistry, the Enoree River basin was sampled at seven different spatial scales ranging from second-order watersheds smaller than 2 km^2 to a sixth order watershed of 1840 km^2. The second-order watersheds ...

Modeling soil erosion, sediment yield, and runoff are crucial for managing reservoir capacity, water quality, watershed productivity. However, the monitoring modeling of erosion sedimentation rates in developing countries such as Ethiopia is not well practiced; thus, capacity diminishing at faster rates. In this study, Megech watershed, Upper Blue Nile Basin, were modeled using physically-based...

Watershed environments play an important supporting role in sustainable high-quality economic development China, but they have been deteriorating. In order to solve environmental problems the Poyang Lake River Basin brought about by development, Jiangxi Provincial Government promulgated relevant river basin protection policies 2015. However, after several years of this policy, specific effects ...

the hydrograph at watershed outlet can be expressed as hydrological response of watershed to geomorphological behavior. in present study with the aid of the gis and the concept of instantaneous unit hydrograph, the watershed response was simulated. in present physical method, the iuh is derived from three parameters of time of concentration, storage coefficient and time-area curve of the basin....

planning of watersheds is indispensable in terms of sustainable development and landscape management. therefore, watershed prioritization and morphometric characterization are important to identify hydrological behavior of the basin for conducting management strategies. in this study, geospatial-statistical approach was used for identifying critical and priority sub-watersheds in the golestan w...

Accurate detection and quantification of vegetation dynamics and drivers of observed climatic and anthropogenic change in space and time is fundamental for our understanding of the atmosphere–biosphere interactions at local and global scales. This case study examined the coupled spatial patterns of vegetation dynamics and climatic variabilities during the past three decades in the Upper Heihe R...

The Kagera basin is a high value ecosystem in the Lake Victoria watershed because of the hydrological and food services it provides. The basin has faced large scale human induced land use and land cover changes (LUCC), but quantitative data is to date lacking. A combination of ancillary data and satellite imagery were interpreted to construct LUCC dynamics for the last century. This study is an...

Rainfall-runoff relationships in semi-arid environments are highly non-linear due to the spatial and temporal variability of precipitation and watershed antecedent soil moisture conditions. Specifically within dryland regions, precipitation is often short in duration, limited in spatial extent, and characterized by high intensities. When combined with seasonal periods of elevated basin wetness,...

Four experiments in alluvial drainage basin evolution were carried out in the Rainfall Erosion Facility (REF) at Colorado State University to investigate the dependence of basin evolution on initial topography. Basins were initially undissected. Each experiment began with a unique initial condition representing various end-members of relief and hypsometry. Drainage network development, hillslop...