38 research outputs found
Critical level of water recharges in the catchment areas of Manna watershed Bengkulu Province Indonesia
No full text
Agroekosistem: tanah mineral masam
No full textAgroekosistem Tanah Mineral Masam, sebuah tulisan tentang potensi tanah mineral masam sebagai kawasan geokologi yang harus produktif. Konsepsi pengembangan agroekosistem ini mencapai tujuannya yaitu menjadikannya wilayah produktifitas tinggi, tanpa terganggu tingkat kestabilannya, sehingga tercipta wilayah produktif yang berkelanjutan. Tetapi dibalik potensinya tersimpan kendala bahwa tanah ini sangat rapuh daya lenting yang sangat rendah. Tanah ini sangat mudah terdegradasi dan proses restorasinya memerlukan waktu yang panjang, sehingga pengelolaanya harus mengindahkan kaidah-kaidah konservasi
Carbon Release from Agricultural Cultivated Peats at Sungai Hitam Wetland, Bengkulu Province, Indonesia
No full text
Options for land conservation practices based on land use and land degradation in upland Luas Watershed Bengkulu Indonesia
No full textThis study is objected to determine the options for land conservation based on degraded land in upland of Luas watershed, Bengkulu, Indonesia. This work was conducted on the upland from November 2015 to February 2016. The location was geographically lying on 103020’47” - 103058’50” Latitude., and on 04021’10” - 04037’12” longitude, in Kaur District, Bengkulu Province. The total area is 55,045.23 ha where the forest covers 52,432.95 ha or 95% of the upland of Luas watershed. The spatial analysis for land degraded level was based on overlaying from attributes of some parameters such as; land cover, slope, erosion hazardous level, land productivity and management. The analysis is conducted by converting analytical geographical coordinates into Universal Transverse Mercator (UTM). The upland of the watershed is currently under environmentally pressures which around 24% in poor conditions and 23% of the area are degraded. The Limited Timber Forest areas of Air Kinal, Kaur Selatan, and the protected forest area of Bukit Raja Mendara can potentially be rehabilitated by applying concepts of social forestry with introducing agro-forestry cultivation models. All areas of agriculture cultivation in this study can be effective using land conservation tillage and management which concerning all environmental values for the sustainable productivities
ANALISIS EROSI DAN TINGKAT KEKRITISAN LAHAN PADA DAS KUNGKAI KABUPATEN SELUMA
No full textPenelitian ini bertujuan untuk mengetahui seberapa besar erosi yang terjadi, tingkat bahaya erosi, kekritisan lahan, luas lahan kritis dan sedimentasi yang terjadi pada DAS Kungkai. Dengan menggunakan aplikasi GIS yaitu ArcGIS 10 maka dapat diketahui nilai erosi dan dapat dilakukan
pemetaan kawasan yang mengalami kekritisan lahan pada DAS Kungkai. Analisis erosi pada DAS Kungkai menggunakan metode USLE dengan beberapa faktor yang mempengaruhi seperti
Erosivitas Hujan, Erodibilitas Tanah, Indeks Panjang dan Kemiringan Lereng, Indeks Pengelolaan Tanaman, dan Indeks Konservasi Tanah. Pada penelitian yang telah dilakukan, pada DAS Kungkai tidak ada kawasan yang tidak kritis dan dan 51,03 % kawasan berada pada kondisi agak kritis.
Kawasan yang mengalami erosi terbesar adalah kawasan APL dengan nilai erosi mencapai 1.471.345,958 ton/tahun . Berdasarkan analisis, erosi total keseluruhan DAS Kungkai yakni sebesar 3.064.405,596 ton/tahun dengan luas keseluruhan 33.134,04 Ha . Penilaian kekritisan lahan yang dinilai dari faktor tutupan lahan, faktor kelerengan dan hasil perhitungan erosi, pada kawasan DAS Kungkai berada dalam keadaan tidak kritis yakni 0 Ha (0%), potensial kritis
2.430,32 ha (7.35%), agak kritis 16.879,83 ha (51,03 %), kritis 13.118,79 ha (39,66 %), dan sangat kritis yakni 648,552 ha (1,96 %). Sedimen yang terjadi pada DAS Kungkai yakni sebesar 389.179,51 ton/ha dan melebihi nilai toleransi erosi yakni sebesar 47.091,449 ton/tahun. Hasil dari perhitungan kekritisan lahan kemudian dipetakan dengan menggunakan Arc GIS 10 sehingga sebaran lokasi kekritisan lahan dapat diketahui dengan mudah
Analysis of erosion hazardous level and sedimentation in Manna Watershed, Bengkulu Province Indonesia
No full textThe research purposeis to analyze erosion hazardous level and sedimentation on Manna watershed, Bengkulu Province. The research area geographically lies between 102°51′38.2″-103°10′57.8″ East., and 4°0′39.6″-4°29′38.0″ South covering 72,071.9 ha. Potential erosion yield and level were calculated by applying Universal Soil Loss Equation, and spatial analysis of the erosion was done using ArcGIS. The potential erosion in Manna watershed was classified as moderate hazardous level of 12,442,368.12tons yr−1 or similar to170.68 tons ha−1yr−1. Moderate to high level Soil erosion covered areas of 47,359.00ha, or 65.19% of Manna watershed, and high risk of potential erosion with very high sedimentation rate amounted to 248.851,1 tons yr−1. In short, land cover in Manna watershed was generally in high environmental pressures, therefore, and in future, water resources would face environmental problems
Options for land conservation practices based on land use and land degradation in upland Luas Watershed Bengkulu Indonesia
No full textThis study is objected to determine the options for land conservation based on degraded land in upland of Luas watershed, Bengkulu, Indonesia. This work was conducted on the upland from November 2015 to February 2016. The location was geographically lying on 103020’47” - 103058’50” Latitude., and on 04021’10” - 04037’12” longitude, in Kaur District, Bengkulu Province. The total area is 55,045.23 ha where the forest covers 52,432.95 ha or 95% of the upland of Luas watershed. The spatial analysis for land degraded level was based on overlaying from attributes of some parameters such as; land cover, slope, erosion hazardous level, land productivity and management. The analysis is conducted by converting analytical geographical coordinates into Universal Transverse Mercator (UTM). The upland of the watershed is currently under environmentally pressures which around 24% in poor conditions and 23% of the area are degraded. The Limited Timber Forest areas of Air Kinal, Kaur Selatan, and the protected forest area of Bukit Raja Mendara can potentially be rehabilitated by applying concepts of social forestry with introducing agro-forestry cultivation models. All areas of agriculture cultivation in this study can be effective using land conservation tillage and management which concerning all environmental values for the sustainable productivities
PERTUMBUHAN DAN HASIL TANAMAN MELON (Cucumis melo L.) PADA KOMPOSISI MEDIA TANAM DAN FREKUENSI PEMUPUKAN YANG BERBEDA
No full text[GROWTH AND YIELD OF MELON PLANT (Cucumis melo L.) IN DIFFERENT COMPOSITION OF PLANT MEDIA AND DIFFERENT FREQUENCY OF NPK APPLICATION]. This study aims to determine the best combination of planting media composition and frequency of NPK fertilization on the growth and yield of melon plants. The research was conducted in October 2018 - January 2019 on the land located in Bentiring, Muara Bangkahulu District, Bengkulu City. The design used in this study was a Completely Randomized Design (CRD) consisting of two factors and three replications. The first factor was the composition of the media for plant growth, which consists of three different media composition, namely: sand: soil: manure (30%: 50%: 20%), sand: soil: manure (10%: 60%: 30%), and sand: soil: manure (20%: 70%: 10%). The second factor is the frequency of NPK fertilization consisting of four types of fertilization, namely: 1 time NPK fertilization during planting, 2 times NPK fertilization during planting and 10 days after planting (dap), 3 times NPK fertilization during planting, 10 dap and 20 dap, and 4 times NPK fertilizing during planting, 10 dap, 20 dap and 30 dap. The dose given is 15 g/plant (equivalent to 800 kg/ha) and NPK fertilizer given in the form of compound fertilizer N: P: K 16:16:16. The results showed that the best composition of the planting media was found in the treatment of sand media: soil: manure (10%: 60%: 30%). The best fertilizing frequency was found in the treatment of NPK fertilizing 4 times during planting, 10 dap, 10 dap, 30 dap, and the combination of both produces the most substantial plant length, weight, and fruit circumferenc
