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At present, big data is becoming the focus of all walks of life, and is even considered as an information revolution that will change the future. The Smart River Basin is a data-centric complex information system established in order to solve the practical problems of the river basin, and it is the higher stage of the Digital River Basin which is bound to be affected by Big Data. This paper analyzes...
The problem of the low efficiency of the existing spatial interpolation algorithm for hydro meteorological information is discussed and two fast interpolation algorithms based on the conventional Thiessen polygon method was proposed in this paper: improved Thiessen polygon method and self-adaptive Thiessen polygon method. Studies of the Luan River Basin had shown that the self-adaptive Thiessen polygon...
Based on the research of the ecological water compensation benefit in ecology, resource, economy and society aspects, the author established the AHP-FCA assessment model with both of the analytic hierarchy process and the fuzzy comprehensive assessment, considering the overall benefit indicator system of the water source areas and water receiving areas in the river basin. The comprehensive benefit...
Precipitation and inactivation of phosphorus(P) by the addition of aluminum (AI) is a widely applied sediment restoration measure. Laboratory experiment with sediment from municipal river was conducted to evaluate the effects of poly-aluminum chloride with different adding means. Adding poly-aluminum chloride doesn't remarkably influence pH. At the same time Al3+ concentration is less than 50 ug·L...
The application of nitrate is an accepted procedure to manage eutrophication municipal rivers by controlling the phosphorus release from sediments into overlying water and offering electron acceptor for microorganism metabolism. An in-situ-experiment was carried out to oxidize the sediment by direct calcium nitrate injection. Phosphorus release from sediment injected calcium nitrate was almost stopped...
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