Loss of soil organic matter can be caused by erosion triggered by soil compaction and high rainfall. The aims of the study were to determine (1) the loss of soil organic matter, lignocellulose, and soil microbial population due to erosion and (2) the contribution of organic matter from oil palm fronds. In the current study, the erosion plots were built on the accessible inter-row (gawangan hidup) and inaccessible inter-row (gawangan mati) of oil palm plantations located at the slope of 6-10% and >10%. Soil organic matter, lignin, cellulose, and hemicellulose contents and total soil microbial populations were measured in the sediments collected from the erosion plots. The results showed that the loss of organic matter was higher in the accessible inter-row than that in the inaccessible inter-row. The addition of lignin, cellulose, and hemicellulose from oil palm fronds into the soil are 2.06 Mg ha-1 yr-1, 1.13 Mg ha-1 yr-1 and 1.02 Mg ha-1 yr-1, respectively. Total bacterial population in the sediments taken from the accessible inter-row was higher than that from the inaccessible inter-row, while the total fungal population in the sediments from the inaccessible inter-row was higher than that from the accessible inter-row.
Mandalika merupakan Kawasan Ekonomi Khusus super prioritas yang berada di Kecamatan Pujut, Kabupaten Lombok Tengah, Nusa Tenggara Barat. Sebagai kawasan wisata, tentu saja ketersediaan bahan pangan menjadi salah satu hal yang penting untuk diperhatikan. Untuk mendukung kawasan wisata yang maju, pangan sebagai salah satu kebutuhan pokok manusia harus terjaga ketersediaannya baik secara kuantitas maupun kualitas. Secara geografis, lokasi ini berada di bagian selatan Pulau Lombok dengan iklim yang kering. Jenis tanah yang berkembang pada daerah tersebut yakni tanah vertisol. Tanah vertisol merupakan tanah yang terbentuk dari batuan kapur pada daerah yang kering. Tanah vertisol memiliki karakteristik yang sangat khas yaitu sifat kembang kerut yang nyata. Jahe merah merupakan salah satu jenis tumbuhan rimpang yang populer untuk dimanfaatkan sebagai penghangat tubuh dan memiliki nilai ekonomi tinggi. Dengan kondisi iklim yang kering, jahe merah dapat dikembangkan di daerah penyangga KEK Mandalika dengan beberapa penyesuaian irigasi (sistem irigasi tetes) dan pemberian bahan organik pada tanah dapat memberikan lingkungan yang sesuai untuk pertumbuhan jahe merah.
Waste management is still a serious problem that must be resolved, especially in Kerongkong Village, Suralaga District, East Lombok. One of the efforts that can be done is waste management through waste banks. Therefore, the purpose of this community service is to increase public knowledge regarding waste banks and improve community skills and income through waste bank management. This community service activity was carried out in Kerongkong Village, Suralaga District, East Lombok, which consisted of 2 activities including preparation and implementation of activities. The results of the service activities show that an increase in public knowledge about waste bank management and the establishment and empowerment program through a waste bank in Kerongkong Village, Suralaga District, East Lombok Regency has been able to reduce the amount of piles of waste generated by the community, improve community skills and income in managing waste banks. . To support the sustainability of the waste bank program, it is highly expected that there will be support from the community and the government so that the waste bank can maintain cleanliness and environmental sustainability in the future.
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