CLIMATE CHANGE ADAPTATION ON LAND COVER OF SAND DUNES ECOSYSTEM PARANGTRITIS COASTAL AT BANTUL REGION, DAERAH ISTIMEWA YOGYAKARTA, INDONESIA

Abstract

Interpretation of imagery in 2003, 2010, and 2016 shows the changing patterns of land cover on coastal areas at Parangtritis Bantul. This change was triggered by climate change factors, especially rainfall. The study aims to: 1) mapping the pattern of land cover change on coastal sand dune Parangtritis ecosystem and its relation to climate change occurs; 2) determine the forms coastal sand dune ecosystem adaptation due to the climate change.

The study was conducted by surveying and mapping. Firs creating a map of land cover temporally. Map of the pattern of land cover 2003 and 2010 of land area was obtained by image interpretation. The pattern of land cover in 2016 was obtained from the existing mapping month from May to September 2016. The changes pattern of land cover is shown by the calculation of the area coverage and type of land cover from time to time. Climate change is seen by the trend analysis of rainfall last 19-28 years. The link between land cover and climate change were analyzed descriptively. The forms observed adaptation of the dominant vegetation growing as land cover in the zone of active sand dunes.

The results showed that from 2003 to 2016 a reduction in the extent of land cover types such as moor, natural bush, cultivated plants, ponds, and settlements. Land cover types shoals and sandbanks open beaches are also reduced. Rainfall trend analysis showed that the study area has increased the amount of rainfall. The rainy season in the area the research took place between the months of November to June, while the dry season lasts between the months of June to October. Adaptation form occurs that is increasingly broad and diverse types of vegetation found in sand dune ecosystems. The dominant vegetation that found such as grass run, pandanus thorns, thistle, Ipomea, cassava, gamal, fir shrimp, and dragon fruit.