| dc.description.abstract | Jakarta-Bogor-Depok-Tangerang-Bekasi (Jabodetabek), as a megacity has highly growth of citizen
population. UrtJan density has been increased progressively. However, infrastructure development is left
several steps behind. Therefore, environmental degradation, such as urban heat, water extreme and
vulnerabilities are held not only in Jakarta, but also in its vicinity. It's proposed to establish two dams in
Ciawi and Genteng with 36.106 m3 and 25.106 m3 water capacities to regulate water debit of Ciliwung
and Cisadane rivers, respectively. Due to some ecologically and socio-economically constraints, dam
construction has been delayed. This paper tells some lesson learned regarding greenery and blue open
space management in water sensitive cities of Jabodetabek. Case study was conducted in the scale of
Ciliwung Watershed as bioregional. Greenery and blue open space researches are concerned to the
upper, the middle and the down streams of Ciliwung watershed management. According to the research
results, it's well known that land use and land cover are increasingly changing in Ciliwung watershed
during the latest 30 years. In order to reduce risk of flooding, some alternatives are recommended to
manage greenery and blue open spaces better in the scale of riparian landscape of Ciliwung. The upper
stream is projected to develop urban agriculture zone, the middle stream for agro-biodiversity
conservation zone, and the downstream for productive landscape zone of individual or community
gardens, such as pekarangan, kebun campuran and talun. As substitution of big dams, it's planned to
making a lot of ponds and water cascade as small water retention along the river, i.e. situ, embung, danau etc.
Simple simulation could be calculated. Seventy percent of 117 km Ciliwung river length (c.a. 80 km)
will be utilized for the project area. Each 1 km distance would be established two ponds in the right and
the left side of public good riparian landscape. Average size of pond is 50m x 20m x 2m (2.103 m3).
Therefore, total 160 ponds will regulate 32.10 m3. Those water retention ponds could be designed as
landscape services for recreation parks, fishing, irrigation, biodiversity conservation, micro-climate
amelioration depend on the needs of surrounding communities and govemments policies. In the case of
Ciliwung River, those greenery and blue open spaces must be managed by local government of Bogor
District, Bogor City, Depok City, and Metropolitan Jakarta, respectively based on administrative region. | id |
