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Sand dune is one of the many graces for the people of Indonesia. We should be keeping our existence sustainable.
Sand Gumuk is one type of coastal ecosystem that is rarely talked about compared with others. Sand dune is a regular accumulation of loose hill-shaped sand (mound), from the wind that blows in the direction and continuously in an area. Parangtritis presents the formation of ecosystems.
Sand Gumuk is a natural phenomenon of dune-like hills formed by wind movement. The term Gumuk is derived from the Javanese word meaning piles or portrudes from flat surfaces. In accordance with the process of its formation or morphogenetically, Gumuk Pasir Pantai Parangtritis can not rule out the existence of Mount Merapi, Mount Merbabu, Opak River, Progo River and Parangtritis Beach itself.
The sand dunes ecosystem is influenced by several factors: the amount and severity of the deposited sand, the waves that move the sand from the sea to the land, the intensity of sunlight that dries sand on the shore, large and wind direction which move the sand grains, , vegetation and community culture. Gumuk Pasir Parangtritis is a living environment that has a prescribed abiotic conditions, namely temperature fluctuations sing and night extremes, structures that have no fertile ground layer fertile, the presence of strong winds. This provides a variety of flora (coastal vegetation that adapt in the sand dunes.
The existence of the sand dune of parangtritis beach is interesting to be studied further, considering the sand dune that form a unique landscape and similar mini desert. besides that the sand dunes of parang tritis beach especially passive sandbanks have the potential to become agricultural land. It is a potential to be used as an ecotourism as well as an interesting and unique ecotourism. The potential of the sand dunes should be protected to protect the sustainability of the surrounding beaches, let alone the sand dune is a coastal geological phenomenon that the process of formation takes a relatively long time.
The southern area of ??DI Yogyakarta is a coastal stretch of more than 70 km, covering the areas of Bantul, Kulon Progo and Gunung Kidul. Coastal sand is a marginal land and has not been fully utilized to improve people's welfare. According to Sudihardjo (2000), based on the 1983 CSR / FAO criterion the actual suitability of the South Coast DIY sand field includes an unsuitable or marginal class for food crops and vegetables. Because the characteristics of coastal sand is sand content exceeding 95%, poor soil structure, loose consistency, lack of water retention, permeability and drainage is very fast, and poor nutrients. Provision of organic materials or manure, and improvement of soil properties can improve soil physical properties, especially aggregates, which in turn will increase soil moisture. Moreover, the area is open with sea breeze that has a salt and moisture content.
However, several studies have proven the potential of the southern sand beach in Yogyakarta along with several treatment alternatives that can be applied to support the successful cultivation of the plants on the land. There are many proven planting plants such as red chili, red onion, watermelon, tomatoes and lettuce, and the results are quite promising. The Planting Area Development Program (PAT) of Bantul Regency, which aims to develop agricultural areas on the southern sand beach, was greeted enthusiastically by farmers. The agricultural area is expected to support coastal tourism.
Based on the results of interviews we have done. One of the potential possessed by sand dune at Parangtritis Beach in the field of agriculture is able to plant plants in the form of cashew and coconut in the border area with the northern settlement, also some in the passive part of the former residential patches. Plants grown to protect from the movement of sand is the acacia that stretches on the northern border adjacent to the rice fields of society, while to protect the residential areas are widely used gliriside and cashew nuts.
Cashew and coconut in addition to functioning to protect from the movement of sand also serves as a plant that can help and improve the economy of people who are around the beach so that sand dunes or sand dunes that are located around the beach is not left alone.
So far, the benefits of sand dunes are only known to help the economy or can increase the income of the community, in addition there are also advantages of cheap land rental, cheap processing and weeding of land, abundant sunshine, can be used throughout the year because irrigation systems can be regulated, and pests or relatively low disease. Plants-taThe impact of the results of sand dune exploitation in Parangtritis Beach, Kretek sub-district, Bantul district, which is used as agricultural land for example planted with cashew trees planted cashew cashew community around can enjoy the results of these plants by selling cashew or making a food made of basic materials from cashew nuts so that people can enjoy the results, not only cashew sandbanks in Parangtritis Beach can also be planted with vegetables, but before it must have a wind breaker or wind barrier.
The utilization of the area should be arranged in such a way as Parangtritis Beach in the east include Depok Beach and Parangkusumo Beach used as beach tourism only, and western part of Parangtritis beach includes Samas Beach, Pandansari Beach and Kwaru Beach serve as coastal and agricultural tourism object. so it can increase people's income, especially the people around Parangtritis Beach. Not only that coastal ecosystem will be maintained by sea water waves (aberation).
The sand dune is a wealth of nature. It's just that people have not been able to dig wisely the benefits of the existence of this sand dunes. Sand dune is one of the many graces for the people of Indonesia. We should be keeping our existence sustainable. Not just sand dune but also every point in our environment, because we live in nature. Nature will give what we give to nature. When we preserve nature then nature will give us a good life.