KEBERHASILAN TEKNIK HYDROSEEDING UNTUK KONTROL EROSI PADA LAHAN MARGINAL SITE LATI PT BERAU COAL KABUPATEN BERAU PROVINSI KALIMANTAN TIMUR
Abstract
ABSTRAK
Kegiatan penambangan batu bara PT Berau Coal site Lati menggunakan teknik open pit mining yang mana salah satu pengaruh negatif dari kegiatan operasional yakni potensi terjadinya pencemaran lingkungan meliputi pencemaran air karena terjadi erosi dan sedimentasi sungai dan juga terbentuknya areal revegetasi dengan tingkat kesuburan yang rendah. Untuk mengurangi dampak negatif salah satunya dengan penanaman mengguankan teknologi hydroseeding. Metode yang digunakan adalah penilaian keberhasilan covering covercrop hydroseeding dengan ground cover assassment, pendugaan laju erosi dengan USLE dan analisa kesuburan tanah kandungan pH dan C/N rasio. Hasil penelitian menunjukan areal revegetasi yang belum ditumbuhi covercrop mempunyai laju erosi sangat tinggi dan kesuburan tanah yang rendah, sedangkan pada areal yang sudah ditanamai covercrop dengan teknologi hydroseeding mempunyai tingkat laju erosi rendah dan kesuburan tanah yang senderung meningkat serta keberhasilan penutupan covercrop yang tinggi pada lahan marginal.
Kata kunci : hydroseeding, lahan marginal, erosi, tanah
ABSTRACT
PT Berau Coal site Lati coal mining activities use open pit mining technique, which is one of the negative effects of operational activities, namely the potential for environmental pollution including water pollution due to erosion and sedimentation of the river and also the formation of revegetation areas with low fertility. To reduce the negative impacts, one of them is by planting using hydroseeding technology. The method used is an assessment of the success of covering cover crop hydroseeding with ground cover assassment, estimating the rate of erosion with USLE and analyzing soil fertility with pH and C / N ratio. The results showed revegetation areas that have not been covered with covercrop have very high erosion rates and low soil fertility, whereas in areas that have been planted with covercrop with hydroseeding technology have low erosion rates and soil fertility which is inclined to increase and the success of covercrop cover is high on land marginal.
Keywords: hydroseeding, marginal land, erosion, soil
Full Text:
PDFReferences
Arsyad S. 2010. Konservasi Tanah dan Air. Edisi Kedua. PT Penerbit IPB Press. IPB Bogor.
Asdak, C., (2007). Hidrologi dan Pengelolaan Daerah Aliran Sungai. Gadjah Mada University Press, Yogyakarta.
Hammer, W.I., 1981. Soil Conservation Consultant Report. Soil Research Institute Indonesia. Technical Note No. 7.
Lal, R. 1977. Erosivity in tropical countries. IITA Paper Presented at the Expert Consultation on Methodology for Assessing Soil Degradation. Rome, 18-20 January 1977. Western Nigeria. I. Runoff, erosion and crop response, land Degaradtion and Development. 8:201-219.
Moss, A.J. and T. W. Green. 1987. Erosive effects of large water drops (gravity drops) that fall from plant. Australia J. Soil Res. 25:9-20
Schwab GO, Frevert RK, Edminster TW, Barnes KK. 1981. Soil and water conservation engineering. Ed ke-3. John Wiley and Sons. New York.
Sinukaban, N. 2007. Konservasi Tanah dan Air. Kunci Pembangunan Berkelanjutan. DitJen RLPS, Jakarta
Wischmeier, W. H., Smith, D.D. 1978. Predicting rainfall erosion losses—a guide to conservation planning. U.S. Department of Agriculture, Agriculture Handbook No. 537.
Article Metrics
Abstract view : 434 timesPDF - 284 times
Refbacks
- There are currently no refbacks.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.