Rona Teknik Pertanian
Vol 15, No 1 (2022): Volume No. 15, No. 1, April 2022

Evaluasi Kinerja Sub Das Krueng Jreu Kabupaten Aceh Besar

Khairun Purgawa (Universitas Syiah Kuala)
Hairul Basri (Universitas Syiah Kuala)
Syahrul Syahrul (Universitas Syiah Kuala)



Article Info

Publish Date
30 Apr 2022

Abstract

Abstrak. Dampak perubahan alih fungsi lahan merupakan kejadian di alam yang perlu dipahami untuk menentukan tindakan yang perlu dilakukan di waktu yang akan datang. Strategi pengelolaan DAS masih membutuhkan suatu inovasi pendekatan hidrologi dan lahan untuk memperbaiki situasi DAS. Penelitian ini bertujuan untuk mengevaluasi kinerja  Sub DAS Krueng Jreu Berdasarkan Permenhut P.61 tahun 2014 tahun tentang Monitoring dan Evaluasi Pengelolaan Daerah Aliran Sungai yang mencakup karakteristik Lahan dan karakteristik hidrologi. Hasil penelitian menunjukan persentase lahan kritis yaitu 2,37% (0,023723 ha), Persentase persentase penutupan vegetasi yaitu 78,61% (18250,64) ha, Indeks Erosi sebesar 0,60, Koefisisien Rejim Aliran (KRA) sebesar 26,62  Koefisien Aliran Tahunan (KAT) didapatkan hasil sebesar 0,056, Muatan Sedimen didapatkan hasil 5,02 ton/ha/tahun, frekuensi banjir adalah 1 kali dalam kurun waktu lima tahun, Indeks Penggunaan Air sebesar 22917,30  m3/thn termasuk dalam kelas sangat baik (0,5). Berdasarkan hasil  skoring 8 Sub kriteria  evaluasi kinerja Sub DAS Krueng Jreu yang meliputi Penggunaan Lahan dan Tata Air maka didapatkan hasil akhir senilai 37,75 dengan katagori sangat baik yang berarti kondisi DAS dalam keadaan sangat baik jika di lihat dari penggunaan lahan dan tata air.Performance Evaluation of Krueng Jreu Sub-watershed, Aceh Besar DistrictAbstract. The impact of changes and land-use changes caused is an event in nature that needs to be understood to determine the actions that need to be taken in the future. The watershed management strategy still requires innovation to improve the watershed situation. This study aims to determine the performance of the Krueng Jreu sub-watershed based on the Regulation of the Minister of Forestry P.61 of 2014 concerning Monitoring and Evaluation of Watersheds which includes hydrological characteristics and characteristics. The results showed that critical land was 2.37% (0.023723 ha), the percentage of vegetation cover percentage was 78.61% (18250.64) ha, the Erosion Index was 0.60, the Flow Regime Coefficient (KRA) was 26.62 The Annual Flow Coefficient (KAT) yields 0.056, Sediment Load yields 5.02 tons/ha/year, the frequency of flooding is 1 time within five years, the Water Use Index is 22917.30 m3/yr included in the very good class. (0.5). Based on the scoring of 8 Sub Criteria for evaluating the performance of the Krueng Jreu Watershed which includes Land Use and Water Management, the final result is 37.75 with a very good category which means the watershed condition is in very good condition when viewed from land use and water management.  

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Journal Info

Abbrev

RTP

Publisher

Subject

Agriculture, Biological Sciences & Forestry Engineering

Description

JRTP is the official journal from the Department of Agricultural Engineering, Faculty of Agriculture, Syiah Kuala University (Unsyiah), Banda Aceh-Indonesia. It covers and devotes a complete and interdisciplinary wide range of research and review in engineering applications for agriculture and ...