<![CDATA[ ABSTRAK Makalah ini bertujuan memberi gambaran tentang perlunya sinergi dan harmonisasi antar sektor dalam perencanaan dan pengelolaan tata ruang. Studi kasus dilakukan di kawasan Dieng Plateau menggunakan metode pendekatan survei lapangan dan analisis. Tekanan populasi di kawasan ini telah menyebabkan terjadinya tekanan lahan yang memicu peningkatan aktivitas di sektor pertanian, khususnya komoditas kentang. Aktivitas tersebut disertai dengan pemanfaatan pupuk organik maupun anorganik untuk meningkatkan produktivitas. Hasil analisis lima dari enam sampel air sumur di sekitar lokasi studi menunjukkan kadar nitrat dan COD (Chemical Oxygen Demand) yang tinggi. Tingginya kadar nitrat dan COD dalam air sumur memberikan indikasi yang cukup kuat yaitu telah terjadi kontaminasi air akibat aktivitas pertanian. Oleh karena itu, untuk mencapai kesinambungan sumber daya di Dieng Plateau, maka perlu adanya sinergi dan harmonisai antarsektor, khususnya sektor sumber daya air dan lahan.Kata kunci: COD, Dieng Plateau, nitrat, produktivitas pertanian ABSTRACTThis paper aims to provide an overview of the need for the synergy and harmonize between sectosr in the spatial planning and its management. The case study was conducted in Dieng Plateau using the method of survey and analytical approach. The population pressure influenced the land pressure in this location. It has triggered the increase of agricultural activities, particularly in potato commodities. Its activities use organic and inorganic fertilizers to improve productivity. The analysis result of five of six water samples taken from the shallow dug well around the Dieng Plateau showed the high concentration of nitrate and COD (Chemical Oxygen Demand). High concentration of nitrate and COD in water sample provides a strong enough indication that water contamination occurred as a result of the agricultural activities. Therefore, in order to achieve sustainability of resources in the Dieng Plateau, hence the synergy and harmony between sectors are needed, especially water and land resources sectors. Keywords: COD, Dieng Plateau, nitrate, agricultural activitie ]]>
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