Kajian Alokasi Kebutuhan Ruang di Provinsi Sumatera Utara

In line with the development of the city, the insistence on changes to the natural spaces and undeveloped lands, such as for housing, offices, shops, roads and parking space, and others becomes higher. This condition will effect the decreasing of space for agriculture, vegetables planting and horticulture. On the other side, products of agriculture and horticulture are needed for food. A special case in North Sumatera, the development of highlight/featured sector (rubber and palm planting) also need more space. So, thereupon a competition to get land between many activities in North Sumatera. The purpose of research is to analyze the need for space in North Sumatra Province in comparison to the availability and suitability of the land. In this study, the requirement of space is calculated by the amount of the food needs of the entire population of North Sumatra Province which is adapted to Target Consumption of Food Top North Sumatra Province in 2025, the amount of land area required for settlements that are tailored to the population of North Sumatra Province in 2025, the amount of land area needed for the development of the production of palm oil plantations as the leading sectors of North Sumatra Province, the vast amount of land required for the development of agricultural production and horticulture to meet the needs of residents of North Sumatra Province until 2025. Forecasting the number of agricultural production is using simple linear regression. Suitability and land capability are measured through the depiction of Unit Ability Land (SKL) that will show the suitability of land for protected areas, residential areas, forests, mangroves, cattle grazing, agriculture annuals, perennial plants, and others. The results of the analysis showed that there will be a shortage of land for agriculture in 2025 in the amount of 596,485.44 ha due to the conversion of agricultural land to residential areas, plantations, and others. Based on the suitability of land for agricultural seasonal wet and dry land, there are 1,410,363.07 hectares of land are appropriate for planting vegetables in 2025. In 2025, also will be a shortage of land for housing amounted to 185,638.54 ha. Another finding is that if productivity remains, then by 2025, rice production in North Sumatra Province can meet the needs of rice for food security as long as the harvest of the land until 2025 is provided