A comparative vegetational analyses between natural and disturbed grasslands
Date of Publication
1997
Document Type
Bachelor's Thesis
Degree Name
Bachelor of Science in Biology
College
College of Science
Department/Unit
Biology
Abstract/Summary
Vegetation analyses in a natural grassland in Mt. Palay-palay, Cavite and in a disturbed grassland in Pulilan, Bulacan were conducted. A line intercept measuring 100 m in length by 5 m in width was laid out along the southeast orientation in the natural grassland and northeast orientation in the disturbed grassland. The species found in the natural grassland were: Saccharum spontaneum, Pennisetum polystachyum. Cardiospermum halicacabum and Chromolaena odorata. On the other hand the species found in the disturbed grassland were: Axonopus compressus, Amaranthus spinosus and Lindermia crustacea. The following ecological parameters were measured: density, relative density, dominance, relative dominance, frequency, relative frequency, coverage, relative coverage and importance value. In the natural grassland, the species Saccharum spontaneum had the highest density (40.8%), relative density (50.8%), dominance (17.24%), relative dominance (44.7%), frequency (100%), relative frequency (27.4%), coverage (.36), relative coverage (27.27%) and importance value (35.16%). In the disturbed grassland the species Axonopus compressus had the highest density (8.4%), relative density (38.5%), dominance (7.68%), relative dominance (55.7%), frequency (98%), relative frequency (35%), coverage (1.3%), relative coverage (64.3%), and importance value (46%). The species observed in the natural grassland were taller and the number of species was greater than that in the disturbed grassland.
Abstract Format
html
Language
English
Format
Accession Number
TU07647
Shelf Location
Archives, The Learning Commons, 12F, Henry Sy Sr. Hall
Physical Description
43 leaves
Keywords
Grasslands; Vegetation boundaries; Plant communities
Recommended Citation
Valencia, R. Z. (1997). A comparative vegetational analyses between natural and disturbed grasslands. Retrieved from https://animorepository.dlsu.edu.ph/etd_bachelors/1475
