The evaluation of water hyacinth (Eichhornia crassiper) control program in Rawapening Lake, Central Java Indonesia

4th International Conference on Sustainable Agriculture and Environment

农业科学;生态环境科学

Hidayati, N.^1 ; Soeprobowati, T.R.^2,3 ; Helmi, M.^4

Master Program of Environmental Science, School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia^1

School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia^2

Department of Biology, Faculty of Science and Mathematics, Diponegoro University, Semarang, Indonesia^3

Depertment of Oceanography, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang, Indonesia^4

关键词: Aquatic plants;    Control program;    Coverage area;    Fish farming;    Nutrient inputs;    Pilot projects;    Water catchment;    Water Hyacinth;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/142/1/012016/pdf
DOI  :  10.1088/1755-1315/142/1/012016

来源: IOP

【 摘 要 】

The existence of water hyacinths and other aquatic plants have been a major concern in Rawapening Lake for many years. Nutrient input from water catchment area and fish feed residues suspected to leads eutrophication, a condition that induces uncontrolled growth of aquatic plants. In dry season, aquatic plants cover almost 70% of lake area. This problem should be handled properly due to wide range of lake function such as water resources, fish farming, power plants, flood control, irrigation and many other important things. In 2011, Rawapening Lake was appointed as pilot project of Save Indonesian Lake Movement: the Indonesian movement for lakes ecosystem conservation and rehabilitation. This project consists of 6 super priority programs and 11 priority programs. This paper will evaluate the first super priority program which aims to control water hyacinth bloom. Result show that the three indicators in water hyacinth control program was not achieved. The coverage area of Water hyacinth was not reduced, tend to increase during period 2012 to 2016. We suggesting better coordination should be performed in order to avoid policies misinterpretation and to clarify the authority from each institution. We also give a support to the establishment of lake zonation plan and keep using all the three methods of cleaning water hyacinth with a maximum population remained at 20%.