ABSTRAK
Tujuanpenelitian,(1) Mengetahuibesar debit mataairKakap dari bulan Maret 2014 – bulan Juni 2014.(2) Mengetahuibesarkebutuhan air bagi penduduk didaerahsekitar mataair Kakap yang mencakup empat desa, berdasarkanjenispenggunaannya. (3) Mengetahui perbandingan antara kebutuhan dan ketersediaan air bagi penduduk. (4) Mengetahui upaya optimalisasi pemanfaatan air mataair Kakap terhadap jumlah kebutuhan air bagi penduduk di daerah sekitar mataair Kakap, Kecamatan Giriwoyo, Kabupaten Wonogiri. (5) Untuk menyusun materi ajar geografi pada kompetensi dasar menganalisis hubungan antara manusia dengan lingkungan sebagai akibat dari dinamika  hidrosfera di kelas X semester II.
Pendekatan yang digunakandalam penelitian ini adalahpendekatan keruangan (spatial approach). Jenis dari penelitian ini adalah deskriptif kualitatif, teknik yang digunakanuntukmemperoleh data menggunakan teknik survey melalui pengamatan, pengukuran, dokumentasi, danwawancara. Teknikpengambilansampelsecaracluster random samplingdanteknikanalisis data menggunakananalisisgrafis, komparatif, dandeskriptif.
Berdasarkan hasil penelitian diketahui bahwa (1) Besarnya debit mataair Kakap dari bulan Maret 2014 - bulan Juni 2014 berkisar antara 64 liter/detik – 178 liter/detik. (2)Jumlah total kebutuhan air penduduk pengguna air mataair Kakap sebesar 7.983.670 liter/hari. Kebutuhan air di sektor irigasi sebesar 7.806.240 liter/hari, sektor domestik sebesar 132.560 liter/hari, sektor non-domestik sebesar 25.285 liter/hari, dan sektor peternakan sebesar19.585 liter/hari. (3) Pada bulan Maret - awal bulan Mei ketersediaan air dari mataair Kakap lebih besar dari jumlah kebutuhan air penduduk atau rata-rata surplus sejumlah 3.311.812,4 liter/hari, sedangkan pada akhir bulan Mei - Juni ketersediaan air dari mataair Kakap lebih kecil dari jumlah kebutuhan air penduduk atau rata-rata defisit sejumlah1.946.844,4 liter/hari.(4) Upaya optimalisasi pemanfaatan air mataair Kakap dapat dilakukan melalui efisiensi penampungan, efisiensi penyimpanan, efisiensi penyaluran, dan efisiensi pemanfaatan. (5) Optimalisasi Pemanfaatan Air Mataair Karst Kakap terhadap Pemenuhan Kebutuhan Air bagi Penduduk di Kecamatan Giriwoyo, Kabupaten Wonogiridapat diimplementasikan menjadi materi pembelajaran Geografi pada Kompetensi Dasar Menganalisis Hubungan Manusia dengan Lingkungan sebagai Akibat dari Dinamika Hidrosfera di Kelas X Semester II.
Kata Kunci: Debit, Mataair, Kebutuhan Air, Optimalisasi Pemanfaatan.
ABSTRACT
The objectives of research were (1) To find out the amount of discharge in Kakap springfrom March 2014 – June2014,(2) To find out the water requirement of people surrounding the Kakapspringdetermine four villages, by our proses, (3) To find out the ratio of water demand to supply for the people surrounding the Kakapspring, (4) To find out the attempts taken to optimize the utilization of Kakapspring responding to the water demand of the people surrounding the Kakapspring in Giriwoyo Sub District, Wonogiri Regency, (5) To prepare teaching materials geography on the competence to analyze the relationship between humans and the environment as a result of the dynamics hidrosfera on the grade X semester II.
The approach used in this research was spatial approach. The type of research employed was descriptive qualitative one, technique of collecting data used was survey one through observation, documentation, and interview. The sampling technique employed was cluster random sampling and techniques of analyzing data used were graphic, comparative, and descriptive analyses.
Considering the result of research, it could be concluded that (1) Thediscarge of Kakapspring ranged from 64 l/s to 178 l/s during March - June 2014. (2) The total water requirement of the people using Kakapspring was 7.983.670 l/d. The water requirement was 7.806.240 l/d for irrigation, 132.560 l/d for domestic, 25,285 l/d for non-domestic, and 19.585 l/d for animal husbandry sectors. (3) In March - early May the availability of water from Kakap springs greater than the amount of water needs of the population, or an average surplus amount of 3,311,812.4 liters / day, whereas at the end of the month from May to June the availability of water from Kakap springs less than the amount water needs of the population, or an average deficit of 1,946,844.4 liters / day. (4) The optimization of water utilization in research site could be conducted through several management efficiencies including those of accommodation, storage, distribution, and utilization. (5) The Optimization of KakapKarst Spring Utilization on the Fulfillment of Water Need for the Population in Giriwoyo sub district of Wonogiri regency suitable to be implemented into teaching materials the Basic Competence of Analyzing the Relationship Between Human Environment As a result of the Hydrosphere Dynamics Grade X Semester 2.
Keywords:Discharge, Spring, Water Requirement, Utilization Optimization.