PENAKSIRAN NILAI EKONOMI MANFAAT HUTAN SEBAGAI CATCHMENT AREA DARI UMBUL KAPILALER UNTUK IRIGASI PERTANIAN DI DESA DOMPOL, KEC. KEMALANG, KAB. KLATEN

AURELIA S V, Agus Affianto, S.Hut., M.Si.

2013 | Skripsi | MANAJEMEN HUTAN

Keberadaan hutan sebagai catchment area mampu menambah pasokan air tanah, yang akan dikeluarkan melalui mata air. Air yang keluar dari mata air digunakan untuk menunjang pembangunan ekonomi, salah satunya untuk irigasi pertanian. Umbul Kapilaler merupakan salah satu mata air yang khusus digunakan untuk irigasi pertanian. Masyarakat pengelola catchment area sering kali tidak menyadari besarnya manfaat air untuk irigasi pertanian, karena manfaat tersebut tidak dirasakan langsung. Mereka memandang sempit manfaat catchment area dari manfaat finansial yang berupa kayu. Pengambilan sampel menggunakan metode Stratified Random Sampling (Sampel Acak Berstrata). Pengambilan responden pengelola hutan terbagi kedalam empat strata. Strata I luas lahan 0,06-0,30 ha, Strata II luas lahan 0,31-0,55 ha, Strata III luas lahan 0,56-0,80 ha, dan Strata IV luas lahan > 0,81 ha. Pengambilan responden petani sawah irigasi maupun sawah tadah hujan terbagi dalam empat strata. Strata I luas lahan 0,6-11,0 ha, Strata II luas lahan 1,1-1,5 ha, Strata III luas lahan 1,6- 2,0 ha, dan Strata IV luas lahan > 2,1 ha. Nilai finansial kayu merupakan nilai kegunaan yang sudah terdiskon. Nilai air merupakan residual value yaitu nilai sisa dari pendapatan usaha tani padi sawah dikurangi biaya kecuali biaya air itu sendiri. Nilai finansial kayu pada strata I sebesar Rp 99.624.004-/ha, strata II sebesar Rp 154.039.416,-/ha, strata III sebesar Rp 154.767.084,-/ha, dan strata IV sebesar Rp 133.079.272,-/ha. Nilai ekonomi air pada strata I sebesar Rp 353.174.255,-/ha, strata II sebesar Rp 390.859.845,-/ha, strata III sebesar Rp 403.561.299,-/ha, dan strata IV sebesar Rp 471.127.055,-/ha. Pengelolaan catchment area mempunyai nilai social benefit yang tinggi dan merupakan nilai eksternalitas positif, sehingga dapat diinternalisasikan kedalam perhitungan benefit dan cost dengan pemberian insentif pada pengelola hutan.

The forest existence as a catchment area is able to add the ground water that appears from the spring. That ground water is used for supporting economic development, one of them is for agriculture irrigation. Umbul Kapilaller is one of spring which is special used for irrigation.The society who manage the catchment area don’t realize yet about how big the benefit of water for irrigation because the benefit can’t be perceived directly. They still have a narrow thought about the benefit of the catchment area as a timber production. The method used in this study is stratified random sampling. The retrieval respondents of forest managers were divided into four strata. Strata I is for people who have 0,06-0,30 hectares of their land are, strata II is for people who have 0,31-0,55 hectares area of their land, strata III for 0,56-0,80 hectares and strata IV is for people who have more than 0,81 hectares land. The retrieval respondent of farmer of irrigation paddy field and rain fed paddy field were divided into 4 strata too. Strata I is for 0,6-1,0 hectares, strata II is for 1,1-1,5 hectares, strata III is for 1,6-2,0 hectares and strata IV is for more than 2,1 hectares. The financial value of timber is the discounted value. The water value is a residual value, that is the difference between the the residual value of farmer benefit and the cost, except the cost for water itself. The financial value of timber in strata I is Rp 99.624.004-/ha, strata II is Rp 154.039.416,-/ha, strata III is Rp 154.767.084,-/ha, and strata IV is Rp 133.079.272,-/ha. While the economic value of water in strata I is Rp 353.174.255,-/ha, strata II is Rp 390.859.845,-/ha, strata III is Rp 403.561.299,- /ha, and strata IV is Rp 471.127.055,-/ha. The management of catchment area has high social benefit value and form positive externality, so it can be internalize to the benefit and cost calculation with insentive giving to the forest managers.

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