The environmental services of mangrove forests as carbon sinks are one of the indirect benefits of the mangrove ecosystem. The absorption of carbon is carried out by mangrove vegetation through the process of photosynthesis. In this study, mangrove environmental services as carbon sinks are based on the ability to absorb CO2 expressed in carbon units (tC, tCO2), and the economic value of carbon storage in monetary units (Rp). This research was conducted in the Bagek Kembar Mangrove Ecotourism Area, Sekotong District, West Lombok Regency. The method used to take samples is stratified random sampling, where the placement of the plots is determined randomly. The observation plots for each type of growth are arranged in stages with different sizes. The plots are 10 m x 10 m for trees, 5 x 5 m for seedlings, and 2 x 2 m for seedlings. Trees are mangroves with trunk diameter > 4 cm, tillers have a stem diameter of 4 cm and, a height of > 1 m, and seedlings are mangroves with a height of < 1 m. This research shows that the mangrove vegetation in the research location has absorbed 6,437.80 tonnes of CO2eq, and a monetary value of Rp. 482.834.700 (four hundred eighty-two million eight hundred and thirty-four thousand and seven hundred rupiahs).
City parks, apart from having an aesthetic function as a place for recreation, also have an ecological function with vegetation components to soften the microclimate. Vegetation analysis was carried out in six city parks in Mataram City to determine the vegetation structure. Microclimate factors of the park, namely light intensity, air temperature and humidity inside and outside the park during the day and observations of sound attenuation at night have been carried out. Climatic data is carried out to determine the park's ability to reduce heat and air temperature, increase air humidity and reduce noise and determine the park's environmental discomfort index. Of the six urban parks observed in the city of Mataram, namely the parks of Ampenan, Malomba, Udayana, Sangkareang, Mayura, and Selagalas, it is known that there are three groups of vegetation structures, namely trees-shrubs, shrubs-trees, and shrubs. Vegetation with various compositions of life forms in each city park only controls 40 to 60% of the land area of the park. Urban parks in Mataram City have a low level of ability to soften the microclimate, which is below 5%. In reducing heat and air temperature, and increasing air humidity. City parks are also known to have a low ability to reduce noise. The city parks of Ampenan, Udayana and Sangkareang have an environmental comfort level equivalent to the discomfort felt by more than 50% of the population, while the Malomba, Mayura, and Selagalas parks have a level of comfort equivalent to the discomfort felt by less than 50% of the population. The existence of urban park vegetation is only able to reduce the discomfort index of 7 to 9%.
Tujuan dari pengabdian pada masyarakat ini adalah mengolah sampah menjadi kompos agar dimanfaatkan sebagai pupuk organik dan memberikan nilai ekonomis sampah kota organik melalui penjualan kompos yang dihasilkan. Metode yang digunakan dalam kegiatan ini adalah: Ceramah, diskusi, pelatihan, praktek dan pendampingan. Ceramah dan diskusi dilaksanakan untuk penyampaian materi secara langsung pada masyarakat oleh narasumber yang kompeten dibidangnya sesuai kebutuhan. Pelatihan dilakukan untuk meningkatkan pengetahuan dan ketrampilan tentang: Pengolahan sampah organik untuk pembuatan kompos/pupuk organik, dan pemanfaatan kompos untuk media budidaya taman vertikutur. Pelatihan dan Praktek dilaksanakan untuk ketrampilan masyarakat : Pengolahan sampah organik sebagai bahan dasar pembuatan kompos, sehingga masyarakat dapat membuat pupuk organik sendiri. Pendampingan dilaksanakan dalam rangka memotivasi masyarakat untuk selalu menjaga kebersihan lingkungan, memanfaatkan sampah organik sebagai kompos, sehingga lingkungan permukiman menjadi bersih dan indah. Simpulan dari program pengabdian ini adalah masyarakat Dasan Geres, Lombok Timur dapat mengolah sampah organik untuk dijadikan sebagai pupuk kompos. Pengolahan sampah sebagai kompos sangat mudah dilakukan oleh masyarakat secara mandiri, tidak membutuhkan biaya yang besar, namun sangat mendukung upaya menjaga kebersihan lingkungan. Komitmen masyarakat untuk melanjutkan upaya pengembangan program ini sangat memungkinkan untuk mewujudkan Dasan Geres yang sehat dan indah di kemudian hari. Keywords: Kapasitas Masyarakat; Pengelolaan Sampah; Kompos.
Mangrove association mollusks was one of the indicator to describe the status of mangrove ecosystem’s health. This research aimed to analyze the condition of mangrove rehabilitation based on the composition of association mollusks compared with non-rehabilitation area which resulted from a natural succession. It held on July 2019 at mangrove conservation area Bagek Kembar, West Lombok. Data collection method used stratified random sampling by placed some plots sized 1x1 m randomly in a larger plot (10x10 m) which have been determine randomly before. The result showed that there are 24 species of association mollusks which belong to 11 families found in these area. The abundance of mollusks in natural and rehabilitation mangrove was different which is in a row 50.2647 ind/m 2 and 88.4 ind/m 2. Cerithidea cingulata has the highest abundance among the other species with the number of abundance 48.8 ind/m2 in non-rehabilitation ecosystem and reach 29.17 ind/m 2 in rehabilitation area. Based on this research, the condition of mangrove conservation Bagek Kembar still categorized as non-stable condition for supporting the survival of mangroves associated mollusks.
Gelangsar Village, West Lombok is one of the villages located in a hilly area which resulted in several points in the village of Gelangsar experiencing landslides. The topography which is hilly and steep, triggers landslides in the village of Gelangsar. In addition, the relatively high rainfall in the last few months has made the soil conditions more flexible. Areas that have the potential to cause landslides can be overcome by planting plants that can bind the soil tightly so that it can overcome the potential for landslides. Therefore, this service aims to socialize the use of vetiver grass as a bioengineering method in managing landslides in Gelangsar Village, Gunungsari, West Lombok. This Community Service activity uses the counseling method and the creation of a pilot project. Counseling was conducted to introduce vetiver grass plants and their cultivation techniques. Making a pilot project (pilot project) have been done in the homes of residents who are partners. The Pilot Project was created as a media for socialization and as a strategy for efficiency and effectiveness for target activities. The community of partners are willing to implement and develop vetiver grass as a biotechnology agent to prevent erosion and also as an economic opportunity. This programme has been able to provide knowledge in mitigation landslide disaster management activities independently. Planting vetiver grass is expected to be able to reduce the risk of erosion at landslide-prone points in the village of Gelangsar, improve the physical condition of the land and increase land productivity.
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