?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISIS+KARAKTERISTIK+HIDROLOGI+DAS+ANAK%0D%0ADENGAN+PEMODELAN+SWAT+(Soil+and+Water+Assessment+Tool)%0D%0AMENGGUNAKAN+GIS+(Geographic+Information+System)&rft.creator=Septia+Azizah%2C+Irsa&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Daerah+Aliran+Sungai+(DAS)+sendiri+memiliki+arti+suatu+wilayah+daratan+yang%0D%0Amerupakan+satu+kesatuan+dengan+sungai+dan+anak+sungainya.+DAS+Besai+sebagian%0D%0Abesar+dari+luasannya+merupakan+kawasan+lindung%2C+sehingga+memiliki+kontribusi%0D%0Ayang+besar+bagi+kawasan+penyangga+hidrologis.+Rusaknya+kondisi+hulu+DAS%0D%0ABesai+pada+saat+ini+PLTA+DAS+Besai+mengalami+penurunan.+Maka+dari+itu+perlu%0D%0Adilakukan+analisis+karakteristik+hidrologis+dari+Sub-DAS+Anak.+Pengumpulan+data%0D%0Adilakukan+dengan+yang+didapatkan+dari+hasil+observasi+di+lapangan%0D%0A(Groundcheck)+dan+data+yang+didapatkan+dari+beberapa+instansi.+Penelitian+ini%0D%0Abertujuan+untuk+menganalisis+karakteristik+hidrologi+DAS.+Data+yang+terkumpul%0D%0Akemudian+di+analisis+menggunakan+pemodelan+SWAT+(Soil+Water+Assesment%0D%0ATool)+untuk+menganalisis+karakteristik+hidrologi+DAS+anak+meliputi%3A+Aliran%0D%0APermukaan+(surface+runoff)+dan+Aliran+Bawah+Permukaan+(subsurface+runoff)%2C%0D%0AKoefisien+Regim+Aliran+(KRA)%2C+Koefisien+Aliran+Tahunan+(KAT)+dan+Aliran%0D%0ADasar+(baseflow).+Hasil+penelitian+menunjukkan+karakteristik+hidrologi+DAS%0D%0AAnak%3B+Aliran+Permukaan+(surface+runoff)+sebesar+287%2C36+mm%2C+Aliran+Bawah%0D%0APermukaan+(subsurface+runoff)+sebesar+662%2C82%2C+Koefisien+Regim+Aliran+(KRA)%0D%0Asebesar+88%2C39%2C+Koefisien+Aliran+Tahunan+(KAT)+sebesar+0%2C3229%2C+dan+Aliran+Dasar%0D%0A(baseflow)+sebesar+1682%2C+74.+Setelah+dilakukan+skenario+tutupan+lahan%0D%0Aberdasarkan+Pasal+18+Nomor+41+Tahun+1999+tentang+kehutanan%2C+karakteristik%0D%0ADAS+berubah+meliputi%3A+%3A+Aliran+Permukaan+(surface+runoff)+menurun+menjadi%0D%0A267%2C5%3B+Aliran+Bawah+Permukaan+(subsurface+runoff)+meningkat+menjadi+678%2C87%3B%0D%0AKoefisien+Regim+Aliran+(KRA)+membaik+yaitu+menjadi+79%2C98%2C+Koefisien+Aliran%0D%0ATahunan+(KAT)+membaik+yaitu+menjadi+0%2C3216%2C+dan+aliran+dasar+(baseflow)%0D%0Ameningkat+menjadi+1697%2C78.%0D%0AKata+kunci+%3A+DAS+Anak%2C+Koefisien+Aliran+Tahunan+(KAT)%2C+Koefisien+Regim%0D%0AAliran+(KRA)%2C+Aliran+Permukaan+(surface+runoff)%2C+Aliran+Bawah+Permukaan%0D%0A(subsurface+runoff)%2C+aliran+dasar+(baseflow)%2C+SWAT+(Soil+and+Water+Assesment%0D%0ATool).%0D%0A%0D%0AA+watershed+(DAS)+refers+to+an+area+of+land+unified+by+its+river+and+tributaries.%0D%0AThe+Besai+Watershed%2C+with+a+significant+portion+of+its+area+designated+as+a%0D%0Aprotected+zone%2C+plays+a+critical+role+as+a+hydrological+buffer+area.+The%0D%0Adeterioration+of+the+upstream+conditions+of+the+Besai+Watershed+has+led+to+a%0D%0Adecline+in+the+performance+of+the+Besai+Watershed+Hydroelectric+Power+Plant.%0D%0ATherefore%2C+it+is+essential+to+analyze+the+hydrological+characteristics+of+the+Anak%0D%0ASub-watershed.+Data+collection+was+conducted+through+field+observations+(ground%0D%0Achecks)+and+data+obtained+from+various+institutions.+This+study+aims+to+analyze%0D%0Athe+hydrological+characteristics+of+the+watershed.+The+collected+data+were%0D%0Aanalyzed+using+the+SWAT+(Soil+Water+Assessment+Tool)+model+to+assess+the%0D%0Ahydrological+characteristics+of+the+Anak+watershed%2C+including%3A+surface+runoff%2C%0D%0Asubsurface+runoff%2C+Flow+Regime+Coefficient+(KRA)%2C+Annual+Flow+Coefficient%0D%0A(KAT)%2C+and+baseflow.+The+results+indicate+the+hydrological+characteristics+of+the%0D%0AAnak+Watershed+are%3A+surface+runoff+of+287.36+mm%2C+subsurface+runoff+of+662.82%0D%0Amm%2C+KRA+of+88.39%2C+KAT+of+0.3229%2C+and+baseflow+of+1682.74+mm.+After%0D%0Aimplementing+land+cover+scenarios+based+on+Article+18+Number+41+of+the+1999%0D%0AForestry+Law%2C+the+watershed+characteristics+changed+as+follows%3A+surface+runoff%0D%0Adecreased+to+267.5+mm%2C+subsurface+runoff+increased+to+678.87+mm%2C+KRA%0D%0Aimproved+to+79.98%2C+KAT+improved+to+0.3216%2C+and+baseflow+increased+to+1697.78%0D%0Amm.%0D%0AKeywords+%3A+Anak+Watershed%2C+Annual+Flow+Coefficient+(KAT)%2C+Flow+Regime%0D%0ACoefficient+(KRA)%2C+Surface+Runoff%2C+Subsurface+Runoff%2C+Baseflow%2C+SWAT+(Soil%0D%0Aand+Water+Assessment+Tool).&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2024-07-24&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F85984%2F1%2FABSTRAK_SeptiaAzizahIrsa%2520-%2520Septia%2520Azizah.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F85984%2F2%2FSkripsiFull_SeptiaAzizahIrsa%2520-%2520Septia%2520Azizah.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F85984%2F3%2FSkripsiTanpaPembahasan_SeptiaAzizahIrsa%2520-%2520Septia%2520Azizah.pdf&rft.identifier=++Septia+Azizah%2C+Irsa++(2024)+ANALISIS+KARAKTERISTIK+HIDROLOGI+DAS+ANAK+DENGAN+PEMODELAN+SWAT+(Soil+and+Water+Assessment+Tool)+MENGGUNAKAN+GIS+(Geographic+Information+System).++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F85984%2F