Keanekaragaman Vegetasi Pohon Riparian Di Beberapa Mata Air Desa Soba Kecamatan Amarasi Barat

BANO, Emiliana Eka (2021) Keanekaragaman Vegetasi Pohon Riparian Di Beberapa Mata Air Desa Soba Kecamatan Amarasi Barat. Undergraduate thesis, Unika Widya Mandira.

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Abstract

Riparian tree vegetation is one of the compositions of the riparian ecosystems which has a vital role in maintaining biodiversity. Riparian trees can be foundaround springs, in this case springs in Soba village, West Amarasi district. The purpose of this study was to determine the types of riparian tree vegetation and the diversity of riparian tree vegetation in the springs of Soba village, West amarasi sub-district. The research location was divided into three location, namely the OeKiu spring, the Oe Kou spring and the Oras spring. The method used is the point-quarter method, where for the measurement, transcect are pulled and then divided into four quadrants of observation. In each square, the type and number of trees are recoded, then measurements are made on tree height, diameter and stratification, and environmental indekx (Naturalness index and Hemeroby index). The data obtained were analyzed to obtain the Margalef Specific Wealth Index, Significance Index, Simpson Dominance Index, Shanon-Wiener Diversity Index. The results found 16 species of riparian trees from 11 families namely, Euphorbiaceae, Arecaceae, fabaceae, myrtaceae, annonaceae, meliaceae, menispermaceae, moraceae, malvaceae, verbenaceae, anacardiaceae. The most common type of riparian polvone found in the Arecaceaefamily. The highest species Wealth index was occupied by Oras springs (15,17), followed by OeKiu springs (13,89), and the lowest is Oe Kou springs (12,65). The highest INP of Oe Kou springs is occupied by the Arecasp (62%), followed by the Oras springs occupied by Canangaodorata species (42,01) and OeKiu springs are occupied by Arecaspesies (59,4%). The highest dominance index value is occupied by Oe Kou springs (0,2379), followed by OeKiu springs (0,1843), and the lowest is Oras springs (0,14). The highest diversity of riparian tree vegetation is occupied by Oras springs (2,084/poor), followed by OeKiu springs (1,923/very bad), and the lowest is Oe Kou springs (1,653/ very bad).

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