Abstract-Cisadane watersheds is a very valuable strategic area for the people in Tangerang District, Banten, Indonesia. But that strategic value has brings an impact in the form of water pollution, that comes from its popullation and economic activities. This water pollution load is necessary to know its source, and also how much, so that public, private and local governments can jointly take action to restore the water quality of the Cidasane River. The purpose of this study is to determine the pollution load in the Cidasane watersheds. The study will taking sample of Cisadane River water as an inputs in the isoyet map pollution dispersion modeling. And calculating the load in the river using QUAL2Kw modelling. The results of the modeling are then analyzed to obtain the amount of Cisadane River pollutant load. The pollution load in this study will be focused on BOD, NO3, and Total P, and Salinity. This research has shown the inter-regional pollution spread on the Cisadane river, which used This study will provide a measurable data of the type and scale of the pollution load in Cisadane, as an input for Cisadane River water quality restoration policy making by the Government of Tangerang.Index Terms-Cisadane river, Isoyet map, pollution load, QUAL2Kw model, sustainable watersheds.
Abstract. The dynamic of urban development needs is social space to bout the rights of urban society. An environmental lovers group was evoked by the environmental and Social Issues cause natural and man-made disruptions. Komunitas Ciliwung Depok (KCD) is located under Grand Depok City's Bridge to keep an environment such as land conversion and garbage. This study aims to determine the motivation of KCD's group and to know the social network in Ciliwung riverbank along Depok city. Data were gathered from in-depth interviews, observation and documentation within 4 months. KCD invited the local people to keep and maintain an environment of Ciliwung riverbank. Their strength lies on the actors of KCD founder and involvement of human resources, with the support of public and private sectors facilities. Activities with the local people's participation through social medias such as Facebook as a media of communication to get volunteers' aspirations and involvement. The conclusions of this research are KCD's Network materialized by individual motivation, group awareness and trust between the actors to realizing the common goal.
People with low capacity are vulnerable to flood impact. One community that is prone to flood impacts is those who live on the bank of Ciliwung River in Depok City, Indonesia. In facing floods impact, local people developed Komunitas Anak Ciliwung (KANCIL), an informal society. This society aims to increased awareness of the people in order to save the environment, so that the floods impact can be reduced. The purpose of this study was to determine KANCIL achievement in increasing people participation in maintaining their environment. Data collection was completed by in-depth interviews, while analysis was done using triangulation method between interviews results, expert's judgments and previous researches. There are two activities that are often done, cleaning and patrolling the river bank. After two years of running, KANCIL evolves relationships with other communities who care about the river. In the other hand, the number of participants as well as the activities carried by KANCIL has not increased. The study results show that the communities were not ready yet to involved in the activities that planned by KANCIL. There are several factors that influence the success of KANCIL's program. The main factor that is found is the lack of knowledge of the people to the benefits of maintaining the river. Other factors are also influential is the lack of support from formal leaders. This study concluded that the bottom-up activities such as KANCIL, requires knowledge and commitment of participants as means of locomotion. If the local people do not have adequate knowledge, the role of leaders and formal institutions must be strong. Knowledge and support from formal leaders are important to encourage the people in carrying out the program that has been compiled.
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