ANGGRAINI, Ellyta and Yuliastuti, Nany and Budihardjo, Mochamad Arief (2024) PERENCANAAN KONSERVASI AIR DAERAH ALIRAN SUNGAI SKALA MIKRO DENGAN SOLUSI BERBASIS ALAM DI SUB DAS KEYANG KABUPATEN PONOROGO. Masters thesis, UNIVERSITAS DIPONEGORO.

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Abstract

Perubahan Iklim berdampak pada kerentanan sumber daya air di wilayah tropis. Mengamankan sektor air dengan respon adaptif terhadap perubahan iklim selaras dengan tujuan pembangunan berkelanjutan kedua (Ketahanan Pangan), ke enam (Air Bersih dan Sanitasi berkelanjutan), ke sebelas (Kota dan permukiman layak) dan ke tiga belas (Penanganan Perubahan Iklim). Konversi lahan dari hutan menjadi lahan pertanian di Sub Daerah Aliran Sungai (DAS) Keyang meningkatkan puncak banjir di Kota Ponorogo, sepanjang 2020 tercatat 14 bencana banjir dan 113 kejadian longsor. Tujuan dari penelitian ini adalah merencanakan konservasi air pada DAS skala mikro dengan Solusi Berbasis Alam/Nature base Solution (NBS). NBS didasarkan pada spesifikasi lokasi, ilmu pengetahuan, informasi dan peraturan yang belaku, mengaitkan tema ekologis, melibatkan semua pemangku kepentingan serta fleksibel mengembangkan kerjasama dalam konteks lingkungan. Implementasi NBS secara berkesinambungan membentuk ketahanan Sumber Daya Air. Metode yang digunakan adalah deskriptif metode campuran. Metode kuantitatif dipakai dalam mengidentifikasi DAS mikro prioritas di Sub DAS Keyang sedangkan kualitatif berupa studi literatur jenis konservasi yang ditujukan pada agroekosistem. Hasil penelitian menunjukkan lokasi prioritas konservasi air pada DAS skala mikro di Sub DAS Keyang berada di Daerah Pengaliran Kali Kedung Pawon. Jenis agroekosistem yang sesuai dengan karakteristik biofisik diantaranya zona penyangga tepi sungai, agroforestri dan bioengineering check dam. Rencana skala tapak zona penyangga tepi sungai berlokasi di desa Sidoharjo. Agroforestri di Desa Sidoharjo, Wotan, Pulung, Pulung Merdiko, Patik dan Wagir Kidul. Sedangkan Desa Patik, Tegalrejo dan Singgahan menjadi area yang tepat untuk praktik bioengineering check dam.
Kata kunci: DAS Mikro, Konservasi Air, Solusi berbasis Alam

Climate change has an impact on the vulnerability of air resources in tropical regions. Securing the air sector with an adaptive response to climate change is in line with the second (food security), sixth (clean water and sanitation), eleventh (cities and communtities), and thirteenth (tackling climate change) sustainable development goals. The conversion of land from forest to agricultural land in the Keyang River Watershed increased the peak of flooding in Ponorogo City; throughout 2020, there were 14 flood disasters and 113 landslides. The aim of this research is to plan air conservation in micro scale watersheds with Nature Based Solutions (NBS). NBS is based on location specifications, science, information, and applicable regulations; links ecological themes; involves all stakeholders; and is flexible in developing cooperation in an environmental context. Continuous implementation of NBS builds water resource resilience. The method used is a descriptive mixed method. Quantitative methods are used to identify priority microwatersheds in the Keyang sub-watershed, while qualitative methods take the form of literature studies of types of conservation aimed at agroecosystems. The research results show that the priority location for water conservation in the micro scale watershed in the Keyang Subwatershed is in the Kedung Pawon River drainage area. Types of agroecosystems that are suitable for biophysical characteristics include riverbank buffer zones, agroforestry, and bioengineering check dams. The site-scale plan for the riverside buffer zone is located in Sidoharjo village. Agroforestry is in the villages of Sidoharjo, Wotan, Pulung, Pulung Merdiko, Patik, and Wagir Kidul. Meanwhile, Patik, Tegalrejo, and Singgahan villages are the right areas for checking dam bioengineering practices.
Keywords: micro watershed, water conservation, nature based solutions

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