The Ayung River Basin is the largest watershed on Bali Island. Ayung River flows from Lake Batur and empties into Padanggalak beach. River estuary is an area of sediment material deposition that will form an alluvial formation. The deposition of sediment at the river estuary is due to the influence of river flow, tidal, and wave action on the beach. Sediments that settle at the river estuary can obstruct water flow to the sea, which can cause backwater and flooding to the mainland. The strategy of controlling sediment deposition in the river estuary is essential to reduce the water damage in the downstream area, which is usually used as a tourism area. Ayung River Estuary is one of the estuaries that experienced a massive deposition; on the other hand, the Ayung River Estuary is widely used as a tourism area. The data used are primary and secondary-primary data obtained by a survey to the location and secondary data obtained from supporting data for analysis. Sedimentation occurs in the Ayung river estuary. It is due to soil type, topography, and hydro oceanographic condition. Besides, changes in the regional functions, such as temple construction, also affect the sedimentation process in the estuary. Sedimentation management strategies that can be carried out for the Ayung River estuary are the first is with the jetty construction method, which begins with the normalization of the downstream river, and the second is maintenance dredging, which is carried out through cooperation between the government and the community. Besides being used as sediment control, the jetty that was built can be developed as a tourist location around the estuary area.
The impact of climate change in the form of rising temperatures, rising water levels, water pollution and extreme climate events are vulnerable to the potential of water resources in various sectors of life. The aim of this research is to build a method for managing water potential in river estuaries and arrangement the river estuary area for mitigation of the effects of climate change on water resources in the estuary area, especially in Bali. The method of this research is qualitative research on phenomenology that is happening. Data is collected in the form of primary data and secondary data. Primary data consists of environmental conditions in river estuaries related to climate change that occur, while secondary data in the form of water potential, water quality and land changes are obtained from various related instances. The results of the research found that watersheds on Bali Island are potential watersheds that can be used as raw water sources for both clean water and irrigation water. However, changes in land functions and climate change can cause some negative impacts on the potential and environmental conditions of estuary water resources such as floods, droughts, landslides, pollution of water by pollutants and sedimentation. Mitigation actions that must be taken to reduce the risk for the condition of water resources in river estuaries in Bali due to climate change are managing water potential by managing water systems, conducting water-saving campaigns, integrated management of water availability and needs, environment-based management, strengthening institutions in management of water resources, and the need to regulate cropping patterns right in the river estuary. While in terms of arrangement river estuary area there are several mitigation actions that can be carried out such as the construction of dikes around the estuary area, the construction of reservoirs, the construction of monitoring posts for river estuary conditions and the preservation of deforested areas around river estuary.
Bindu River Ecotourism is a tourist attraction that has natural potential as a place of recreation in the Denpasar City area. Apart from the potential offered by Bindu River Ecotourism, there are still problems that exist in Bindu River Ecotourism including river water which has a lot of sediment, the lack of public awareness to care about the surrounding environment, and the lack of exposure by the public makes only the surrounding community aware of it. If zoning is not carried out in its development, the natural potential of the Bindu River Ecotourism area that has been arranged can be reduced, for this reason, zoning is needed in its development to determine areas in the Bindu River Ecotourism area that are in accordance with the land use and development potential. Based on the delineation and the existing potential, the Bindu River Ecotourism area is divided into a conservation zone and a recreation zone. For the conservation zone, it can be developed into several more zones in the upstream part, it can be developed into a zone for the development of the function of protecting water resources, a zone for the development of the function of protecting flora and fauna as well as limited recreational functions. While the recreation zone can also be developed into several more zones. The upstream recreation zone can be developed into a recreation function development zone and the downstream recreation zone can be developed into an educational function development zone
Ayunan Village, is located in Abiansemal sub-district, Badung regency, Bali. Bali cattle are germplasm that must be preserved, for that we are collaborating with the Bali Karang Ayu and Karya laksana cattle groups in Ayunan village. The maintenance of Bali cattle in partners is very constrained by capital, feed and management of Balinese cattle maintenance is not carried out professionally because it is managed in a family, traditional way and is not a main source of livelihood. Bali cattle maintenance is only a sideline to fill spare time on the sidelines of farming time. The management of cow dung and manure has not been managed properly, which should still be managed into organic fertilizer, sold to farmers so that it can increase the income of farmers, so the solution we offer is to provide assistance and consultation as well as demonstration plots regarding good and correct management of Balinese cattle rearing. to increase Bali cattle production. The results of this community service activity can increase production, productivity as well as produce organic fertilizer from cow dung that can be sold so as to increase the income of Balinese cattle farmers in the two Bali cattle groups that we partner with
The Ayung river basin is the largest watershed in the Bali Penida River Region. The increase in population and the demands of a more viable livelihood have encouraged people to continue to strive to meet all their needs and the development of tourism in Bali that is growing rapidly, but behind that there will be a negative impact caused mainly on the river water environment and river estuary. For this reason, it is necessary to evaluate the environmental conditions of river estuaries and environmental arrangements to be able to support water needs and tourism activities. The purpose of this study was to create a model of water resources conservation at the Ayung river estuary based on ecotourism. The research method uses qualitative methods, which will integrate conservation of water resources that may be carried out in research areas based on ecotourism. The data used are in the form of primary data and secondary data where the primary data is in the form of observations directly to the location of the study and survey by interviewing the surrounding community about tourism activities in the research location. Meanwhile, secondary data in the form of water potential data, land use, topography obtained from survey and related agencies. The results of the study using the SWOT model obtained several alternative conservations that can be done based on ecotourism.
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