Application of time series analysis for assessing reservoir trophic status

Paris Honglay Chen; Ka-Chu Leung

Treesearch

Application of time series analysis for assessing reservoir trophic status

Informally Refereed

Authors:

Paris Honglay Chen, Ka-Chu Leung

Year:

2000

Type:

Proceedings

Station:

Rocky Mountain Research Station

Source:

In: Ffolliott, Peter F.; Baker Jr., Malchus B.; Edminster, Carleton B.; Dillon, Madelyn C.; Mora, Karen L., tech. coords. Land Stewardship in the 21st Century: The Contributions of Watershed Management; 2000 March 13-16; Tucson, AZ. Proc. RMRS-P-13. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 395-399.

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Abstract

This study is to develop and apply a practical procedure for the time series analysis of reservoir eutrophication conditions. A multiplicative decomposition method is used to determine the trophic variations including seasonal, circular, long-term and irregular changes. The results indicate that (1) there is a long high peak for seven months from April to October yearly; (2) the long-term trend (T) increases with time (t) as following relationship: T = 51.4231 + 0.0605t; and (3) circular change period decreases from two or three years to about one year. The methodology is feasible to present the eutrophication changes nurnerically.

Parent Publication

Land Stewardship in the 21st Century: The Contributions of Watershed Management; 2000 March 13-16; Tucson, AZ

Keywords

land stewardship, watershed management, ecosystem-based management, natural resources, conservation, sustainable development, sustainable use

Citation

Chen, Paris Honglay; Leung, Ka-Chu. 2000. Application of time series analysis for assessing reservoir trophic status. In: Ffolliott, Peter F.; Baker Jr., Malchus B.; Edminster, Carleton B.; Dillon, Madelyn C.; Mora, Karen L., tech. coords. Land Stewardship in the 21st Century: The Contributions of Watershed Management; 2000 March 13-16; Tucson, AZ. Proc. RMRS-P-13. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 395-399.