Kajian Ekologi Pohon Burahol (Stelechocarpus Burahol) Di Taman Nasional Meru Betiri, Jawa Timur

Abstract

Ecological Study of Burahol Tree (Stelechocarpus burahol) Thomson at Meru Betiri National Park, East Java. The purpose of this research was to know the ecology of burahol tree (S. burahol). This research was conducted at Lodadi, Sub Section II of Conservation Regional Office, Ambulu-Meru Betiri National Park, East Java in Desember 2004. Data collection were using purposive random sampling to set the plots and transect line method to make a plot acrossed the slope. The size of plot was 20 m in width and 1.000 m in length, total of plot observation were three plots. The result showed that most of burahol habitat found at surrounding river with steep slope. The vegetative composition around burahol trees could be found Chydenanthus excelsus trees (IVI/important value index = 67.9%), and Sandoricum koetjape trees (IVI = 24.2%). However, C. excelsus tree was the closest asociation with burahol, because it always be found together with burahol. Physical environment that burahol trees found, showed that temperature is 26- 30oC, humidity is 50-85%, the slope of the land was 10-50% and the altitude was 10-210 m. The kind of soil was Latosol with 5.5-6.5 acidity. Regeneration of burahol trees was done by bat (Pteropus vampirus) and surface run of