In the article are considered various classifications of watercourses (according to degree technogenic transformation, length and area catchment basin), which objects that part specially protected natural territories within urban areas. The qualitative differences between concepts "rehabilitation" "recovery" determined. choice (the valleys Chermyanka River Gorodnya adjacent territories) used in...

Relevance . The article describes zones with one or another predominant type of melioration depending on the territorial location reclaimed lands, a brief classification channels is given according to design features, cross-sectional shape, throughput capacity and technical operational characteristics. Channels are main elements reclamation systems. Ensuring high-quality operation required band...

The drainage system in the Kedungmundu Road area has several channels that can no longer accommodate rainwater discharge, resulting runoff of channel, which causes flooding and puddles Area. Drainage problems such as silting due to garbage, soil sedimentation, insufficient channel dimensions. In hydrological analysis, rainfall intensity is 129,586 mm/hour. As hydraulic normalised by dredging se...

The Cantareira System is one of the largest water supply systems in world, supplying about half consumed by 22 million inhabitants Metropolitan Region São Paulo, southeastern Brazil. In this scenario, view climate change, silting a serious environmental threat and major challenge to sustainability reservoirs. Therefore, identifying provenance sediments an essential tool support soil conservatio...

We investigate parametrizations of compactly generated t-structures, or more generally, t-structures with a definable coaisle, in the unbounded derived category <mml:mrow class="MJX-TeXA...

Kuala Langsa estuary is a semi-closed zone where there an exchange of two water masses between river and tidal the Malacca Strait. The those occurs as physical result fluctuating estuaries. This caused Suspended Sediment Concentration (SSC) continue to increase final distribution point for sediment brought from upstream by erosion in River. contributes silting estuary. KRI dr. Soeharso Hospital...

Acidity is one of the main factors capable reducing productive potential Brazilian soils, as it promotes release toxic elements for plants and reduces availability nutrients. Recycled civil construction demolition waste (R-CCW class A) a major environmental problem in cities, especially terms its illegitimate disposal, causing floods, clogging galleries silting channels, addition to proliferati...

Abstract We investigated four subaerial (paleo)lacustrine landforms at the north‐eastern shoreline of Schweriner See, Germany. These included two beach ridges, one nearshore bar and a silting up sequence located close to fossil cliff, which marks former maximum extent See. used luminescence profiling with SUERC portable OSL device (POSL) on all sediment sequences in combination sedimentological...

Based on four years of spatially synchronous topographic data the Oujiang Estuary from 2002 to 2019, variations and physical mechanisms estuarine evolution driven by natural conditions human activities since beginning this century were analyzed. The results show that has changed dramatically in past 20 years. From net sediment erosion estuary was 163.44 million m3, average bed elevation river-d...

Mining coal, oil and other energy will form much slope engineering, such as open-pit mine depot slope. The groundwater seepage seriously affects the stability of these engineering projects. Drainage pipes are commonly used in projects to reduce risk moisture decreasing soil stability. Such prone blockage by accumulation after a period operation, resulting decreased drainage or complete failure....