跳至主要内容

Modeling of Deposition Process of Particulate Organic Matter (POM) with Sand on Vegetated Area in a River

Read full paper at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50616#.VEcly1fHRK0

The transport and deposition of particulate organic matter (POM) in river streams has recently received much attention as one of important ecological processes in rivers. We focused on interacted behaviors of sand particles in bed load and POM in vegetated area on sand bars. The purpose of this study is to clarify the characteristics of deposition of POM with bed load on sandbars with the riparian vegetation. A basic experiment on POM transport and deposition with vegetation is conducted in a laboratory flume. It demonstrates that several issues still remain to be future investigated. In particular, the shear due to the bed roughness in the vegetated area and the transport and deposition process of sand particles and POM are required to be described by the proper modeling which will be introduced into a simulation model of various fluvial processes. The main results of this study are that ripples are formed by bed load in riparian vegetation and POM deposition is promoted by ripple behavior. Based on these results, the POM deposition with ripples in vegetated area is described by a conceptual model which will affect various aspects in ecosystem management based on fluvial processes.
Cite this paper
Obana, M. , Jeon, H. and Tsujimoto, T. (2014) Modeling of Deposition Process of Particulate Organic Matter (POM) with Sand on Vegetated Area in a River. Journal of Water Resource and Protection, 6, 1290-1296. doi: 10.4236/jwarp.2014.614119. 
 

[1] Vannote, R.L., Minshall, G.W., Cummins, K.W., Sedell, J.R. and Cushing, C.E (1980) The River Continuum Concept. Canadian Journal of Fishery and Aquatic Science, 37, 130-137.
http://dx.doi.org/10.1139/f80-017
[2] Cummins, K.W. (1974) Structure and Function of Stream Ecosystems. BioScience, 24, 631-641.
http://dx.doi.org/10.2307/1296676
[3] Obana, M., Uchida, T. and Tsujimoto, T. (2012) Deposition of Sand and Particulate Organic Matter in Riparian Vegetation. Advances in River Engineering, 18, 47-52 (in Japanese).
[4] Jeon, H.S., Obana, M. and Tsujimoto, T. (2014) Concept of Bed Roughness Boundary Layer and Its Application to Bed Load Transport in Flow with Non-Submerged Vegetation. Journal of Water Resource and Protection, 6, 881-887.
http://dx.doi.org/10.4236/jwarp.2014.610082
[5] Yalin, M.S. (1977) Sediment Transport. 2nd Edition, Pergamon Press, New York, Chapter 7, 209-267.
[6] Ashida, K. and Michiue, M. (1972) Hydraulic Resistance of Flow in an Alluvia Bed and Bed Load Transport Rate. Proceedings of Japan Society of Civil Engineers, No. 206, 59-69 (in Japanese).                   eww141022lx
标签：

评论

发表评论

此博客中的热门博文

Does Immigration Promote the Investment of the Monopolistic Firm?

In the present paper, we examine the effect of increasing uncertainty of immigrants’ growth on the optimal timing of investment of a firm that has a monopolistic power over the labor market. It is revealed that when the uncertainty of immigrants’ growth is more than a threshold level, increasing uncertainty of immigrants’ growth accelerates the optimal timing of firms’ investment and enhances the economic growth, even if the uncertainty of immigrants’ growth is formulated by the geometric Brownian motion, which is in sharp contrast to the standard result that an increase in the uncertainty postpones the optimal timing. With an increase in the immigrants over the past ten years, workforces in the host countries have been growing significantly to the extent that the immigrants represent 70% of the increase in the workforce in Europe, and 47% in the United States as OECD indicates. In the present paper, we attempted to investigate the effect of increased uncertainty caused by the growi...
发表评论
阅读全文

Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar

Education is one of the fundamental rights of individuals; therefore, the government of a country needs to develop and strengthen educational policy and quality as well as to ensure that everyone has equal access to basic education. The improvement of access and quality of education in the world is becoming as an essential factor in development, whereas the basic education (primary school), is acknowledged as a foundation of the higher educational development for every country. To fulfill this goal, governments introduce several policies and procedures; however, it requires some reforms and participation from the politician, policymakers, and other stakeholders to re-examine educational policy so that it can lead to multiplication and betterment of the reforms. Educational reforms actually focus on accountability. A positive educational development and reform is very challenging and needs more effort and strategy on how to use and utilize the resources effectively as such it can achie...
发表评论
阅读全文