Pendampingan pembuatan Sistem Biopori dalam menanggulangi masalah limbah rumah tangga Desa Tebaban

Making Biopore holes is not difficult and does not require special skills but the results and benefits are much greater. Biopore functions as a water catchment and processing household waste. This method is quite effective in a densely populated environment and limited land. The purpose of this service is to provide knowledge and its application on how to process organic household waste through the Biopore system. The problems faced in Tebaban Barat village are sorting, separating, handling, and managing household waste. Handling household waste is only carried out by transporting waste from the house to the house, then throwing it into the landfills. So that the existing household waste is only wrapped in plastic and waiting for the schedule to pick up the landfills every week, this situation causes a bad smell. Implementing this activity includes field surveys, communication, collaboration, socialization, and mentoring. The survey results obtained are communicated with the village and residents. Then an agreement was made regarding the manufacture of Biopore holes. Furthermore, socialization about waste and conducting assistance activities for making Biopore holes was carried out. The results of the community assistance activities in making Biopore holes, 90% of the residents who attended were able to practice directly making Biopore holes either manually or using a drill and how to fill holes and harvest Biopore results. After the mentoring, the results of the visit carried out by the Team, 70% of the residents have implemented it in their respective homes even though it is still made manually. The activity invites interest from some people because it is seen from the usefulness of this activity. The Biopore is very suitable to be applied in that environment.

PERENCANAAN PENGEMBANGAN RUANG TERBUKA HIJAU SEBAGAI AREA PUBLIK

When discussing Green Open Space (RTH), of course its existence is something that is underestimated by most people even by the district/city government. This is because the mindset of the community and the government that considers the development of Green Open Spaces is not too important is carried out because of the lack of feedback provided by Green Open Spaces to the community and government so that the land of a Regency / City area is overcrowded by other infrastructure developments plus other with the increase in population, resulting in the need for new Green Open Spaces in their minds. The research method used is a qualitative approach with data collection techniques through literature or literature studies.This was only realized because of the community's need for a place to release the fatigue that afflicts due to the many demands from work, the worsening of air quality in a Regency/City area as a result of the rise of industry and motorized vehicles which make the air increasingly polluted by air pollution, and also the lack of land for accommodate water when it rains which makes many areas flooded when it rains because of the lack of water catchment areas. Keywords: Development Planning; Green Open Space; Regulation AbstrakBila membahas Ruang Terbuka Hijau (RTH) tentunya keberadaannya bagaikan sesuatu yang dianggap remeh oleh kebanyakan orang bahkan oleh pemerintah kabupaten/kota. Hal ini dikarenakan pola pikir dari masyarakat dan pemernitah yang menganggap pembangunan Ruang Terbuka Hijau tidaklah terlalu penting itu dillakukan karena kurangnya input balik yang diberikan oleh Ruang Terbuka Hijau kepada masyarakat maupun pemerintahan sehingga membuat lahan dari suatu wilayah Kabupaten/Kota penuh sesak oleh pembangunan infrastruktur lainnya ditambah pula dengan bertambahnya jumlah penduduk sehingga mengakibatkan kebutuhan akan Ruang Terbuka Hijau baru terpikirkan oleh mereka.Metode penelitian yang digunakan adalah pendekatan kualitatif dengan teknik pengumpulan data melalui studi literatur atau kepustakaan. Hal ini baru disadari karena kebutuhan masyarakat akan tempat untuk melepas kepenatan yang menimpa karena banyaknya tunututan dari pekerjaan, bertambah buruknya kualitas udara disuatu wilayah Kabupaten/Kota imbas dari maraknya industri dan kendaraan bermotor yang membuat udara semakin tercemar oleh polusi udara, dan juga kurangnya lahan untuk menampung air ketika hujan yang membuat banyak wilayah yang terendam banjir ketika hujan karena kurangnya wilayah resapan air. Kata Kunci: Perencanaan Pembangunan; Ruang Terbuka Hijau; Regulasi

Changes in zooplankton communities of the Lebyazhye system restored lakes

Ponds rehabilitation projects for the purpose of eco - rehabilitation following significant anthropogenic impacts or degradation are becoming more frequent but not always successful. Therefore, the experience of the restoration of the Lebyazhye system lakes in Kazan city (Russia) is interesting. Previously, the lake system used to consist of four ponds, but due to water catchment area reduction, the area of the lake system also decreased, and only one lake remained. The restoration of the Lebyazhye system lakes was carried out in 2017 and included the deepening of the basin of the Bolshoe and Svetloe Lebyazhye lakes to 4 m, the sealing of the bed of future ponds with bentonite mats, supplying water from Izumrudnoye lake through a pressure water conduit and filling the basin of the lakes with water. The research is devoted to the study of the restoration of zooplankton communities in the Lebyazhye system lakes. For this purpose, the indicators of zooplankton communities before and after eco-rehabilitation measures were compared. After the implementation of eco-rehabilitation measures, significant changes in environmental parameters were observed: the salinity of water decreased, the oxygen content in the water, pH increased. In zooplankton communities, the species richness and diversity increased, new species appeared, as well as those that lived in the lake system earlier before eco-rehabilitation measures were taken.

Effectiveness Of Boezem As A Zero Runoff In Blimbing Subdistric, Malang

During the rainy season, inundation often occurs in Blimbing Hamlet, Malang, which caused by inadequate existing drains and lack of utilization in water catchment buildings. Therefore it is necessary to accommodate this condition using zero runoff concept, by utilizing boezem, which is expected there is no inundation at all by flowing flow immediately either seeping into the ground or into an artificial landfill. In Blimbing Hamlet, there is a boezem for serving and accommodating rainwater. For overcoming inundation in this area, maximalizing the boezem is significantly essential. This research is aimed to know the effectiveness of boezem for zero runoff. This assessment was done by hydrology analysis to obtain Q2, and Q5, for boezem planning, inlet outlets gate, and new drainage channels. The evaluation for existing drainage system showed there was inundation in some drainage channels. A boezem area of 836.9 m2 with 1.1 m depth can reduce inundation to 10%. Alternative inundation countermeasures are carried out with the added depth of 3 m, floodgates on inlets and outlets with of 0.5 m width steel gate, and drainage channel inlets and outlets. With the rehabilitation of boezem and other complementary buildings, it can reduce inundation by 30%.

Settlement Schemes and their Implication on Eastern Mau Water Catchment, Kenya

Settlement schemes are aimed at settling landless people and those displaced by disasters to support socio-economic and environmental development of a country. Eastern Mau Forest Reserve is an important water catchment that has settlement schemes established, which has led to encroachments and degradation of the catchment. This paper, therefore, assesses the implications of human settlements on Eastern Mau water catchment by examining the trends in land use/cover change and river flows for four decades. Primary data was collected from key informant interviews based on purposive sampling whereas secondary data was derived from Landsat satellite images over a 10-year period and analysed using Maximum Likelihood Function from ArcGIS. Data on river flows from River Njoro was obtained from Water Resources Authority Office in Nakuru. Rainfall and temperature data were obtained from Kenya Meteorological Station in Nakuru. Time series analysis is used to understand the trend in river flows over time while Pearson correlation is used to determine relationship between farmlands and river flows. The results indicate a sharp decline in forest cover by 42.7% and an increase in farmlands by 41%. Dense vegetation and farmlands have an inverse relationship as an increase in farmlands lead to a decrease in forest cover. People have settled beyond the established settlement schemes boundaries leading to encroachment and drying up of some rivers. There is also an increase in rainfall and river flows over the years, with monthly river flows increasing in peak flows and declining during low seasons. There is a positive correlation between farmlands and river flows between 1989 and 2020. There is need for regeneration of encroached areas and defining boundary of Eastern Mau to allow initiatives and interventions that help with sustainable management of the catchment area.

Water consumption and environmental behavior of the residents in Lake Toba water catchment area, North Sumatra, Indonesia

One of seventeen points of Sustainable Development Goals (SDGs) is to provide clean water for at least 80% of the global population in 2025. Rural populations living surrounding Lake Toba water catchment area still utilize the lake water for daily use regardless of the susceptible decreasing water quality. This paper describes anthropogenic aspects affecting the water quality of Lake Toba that is consumed as the drinking water source by surrounding residents. The research used a quantitative approach by interviewing 130 household representatives from 3 regencies around the lake to calculate the water consumption and evaluate the water quality in 2018. In addition, this research also assessed the residents' behavior in managing household waste and wastewater. The result showed that the average water consumption is 86,93L/person/day. The majority of the respondents barely treat the water and feel satisfied with the water quality based on its color, turbidity, taste, and odor. On the contrary, the respondents have not adequately treated their domestic waste and household wastewater before being released to the lake, contributing to water pollution. Although most respondents are satisfied with the water quality, it is still needed to perform proper water treatment because the water quality of Lake Toba is reported as slightly up to heavily polluted by the Ministry of Environment and Forestry in 2019.

Potential of rainwater harvesting (RWH) to overcome the problem of water scarcity at the airports: a case study in I Gusti Ngurah Rai Airport, Bali

Indonesian airport in general relies dominantly on the surface and underground water to fulfil its water demand. Although groundwater systems are generally more resilient to climate change than surface water sources, their overuse might damage those water systems. One alternative to overcome this problem is rainwater harvesting (RWH) which could be implemented to increase the availability of raw water supply. However, in Indonesia, the study of the potential of RWH at a regional scale is still limited, so it does not provide sufficient information for practical application. Therefore, as the objective, this research will utilize a simulation analysis method to calculate the volume of rainfall storage, water requirements and reliability levels at I Gusti Ngurah Rai Airport regarding variations of the catchment area. This scheme would be applied not only during the dry and rainy seasons but also during the El Nino event. Moreover, the rainfall return periods would be determined to define the potential size of a rainwater harvesting system yearly. As a result, RWH at I Gusti Ngurah Rai Airport has the potential to substitute the surface water (PDAM) and groundwater usage either fully or partially depends on the season and water catchment area.

Evaluasi Pengaruh Rehabilitasi Lahan Dan Hutan Terhadap Koefisien Aliran Tahunan Di Sub Das Krueng Meuleusong

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh rehabilitasi lahan dan hutan (RHL) terhadap nilai koefisien aliran tahunan (KAT) di sub-DAS Krueng Meulesong. Pelaksanaan RHL di Desa Riting Kecamatan Indrapuri Kabupaten Aceh Besar yang termasuk dalam DAS Krueng Meuleusong dikategorikan tidak berhasil berdasarkan citra satelit perubahan tata guna lahan tahun 2009, 2014, 2017 dan 2019. Hasil interpretasi citra satelit menunjukkan penurunan luasan hutan sekunder, namun luas perdu dan sabana meningkat. Berdasarkan hasil uji korelasi menunjukkan bahwa pelaksanaan kegiatan RHL tidak berpengaruh terhadap perubahan penggunaan lahan menjadi hutan sekunder dan kegiatan RHL tidak berpengaruh terhadap nilai koefisien aliran tahunan (KAT) di Sub-DAS Krueng Meuleusong.Evaluation Of The Effect Of Land And Forest Rehabilitation On Annual Flow Coefficient In Krueng Meuleusong Sub-WatershedAbstract. This study aims to determine the effect of land and forest rehabilitation (RHL) on the value of the annual flow coefficient (KAT) in the Krueng Meulesong sub-watershed. The implementation of RHL in Riting Village, Indrapuri District, Aceh Besar District which is included in the water catchment area of the Krueng Meuleusong sub-watershed is categorized as unsuccessful based on satellite imagery of 2009, 2014, 2017 and, 2019 of land-use change. The results of satellite imagery interpretation showed a decrease in the area of secondary forest, but shrubs and savanna area had increased. Based on the results of the correlation test, shows that the implementation of RHL activities has no effect on changes in land use to secondary forests and RHL activities have no effect on the value of annual flow coefficient (KAT) in the Krueng Krueng Meuleusong sub-watershed.

Community-owned rural water supplies in Galicia (Spain): supporting role in the groundwater self-management

The community-owned rural water supplies in the rural areas of Galicia developed spontaneously in response to the historical shortcomings of local administrations, which are a clear example of commons management strategies. They have developed a water self-management model integrated into a complex network of actors. More than one-quarter of the total population rely on these systems. However, a large part of supplied water does not comply with the sanitary standards due to deficiencies in the system’s design, operation, and maintenance and the water catchment protection. Furthermore, the owners face difficulties complying with basic legal requirements due to the complexity of the regulatory framework and the lack of training of the water board members. COXAPO (‘Comunidad Xeral de Augas de Galicia’), an association of 150 community-owned water supplies, advises, trains, and supports the water boards for the legal, administrative, economic, and technical systems management. As a result, it gets the systems legally compliant concerning the institutional management and quality of supplied water. The success of this network governance recommends a role to the administration in promoting the networking of water boards by supporting the existing water supply associations and encouraging their constitution or provisioning equivalent services in regions where they do not exist.