Vegetation analysis and soil nutrient assessment of 13-year and 6-year kaingin fallow areas in the Mt. Makiling Forest Reserve, Puting Lupa, Calamba City.

Date

6-2003

Degree

Bachelor of Science in Biology

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Virginia C. Cuevas

Abstract

Two sites undergoing kaingin fallow period for 13-years and 6-yea , respectively, in Mt. Maikling Forest Reserve on the western side of the mountain located in Puting Lupa, Calamba City were selected for this study. Vegetation analyses on the two study sites were conducted. Line transect method was used for plants with heights 2 m and below. Actual counting of individuals of species was done for plants with heights greater than 2 m. Line transect method was done twice with an 11 month interval while tree count was done only once. Soil nutrient analyses and monitoring of physical factors of the environment were also done during the two sampling periods. Samplings were done in May 2002 and April 2003. The soil samples were analyzed for pH, % soil organic matter, % soil moisture, % nitrogen, available phosphorous, and exchangeable potassium. Physical factors of the environment monitored include light intensity, soil and air temperatures and relative humidity. Results of the soil analyses showed that soil pH and phosphorous were significantly higher in the 13-year fallow than in the 6-year fallow area. The % soil organic matter content, available phosphorous and exchangeable potassium were also higher in the 13-year fallow than in the 6-year fallow area though the differences were not significant. The 6-year fallow area has a higher species richness and indices of diversity compared with the 13-year fallow area. The 6-year fallow has thinner canopy and is more open which allowed ample amount of light to penetrate the under story. The two sites have a 54% index of similarity of species. This was due to the presence of similar species like Leucaena leucocephala (Lam) de Wit, Gliricidia. sepium (Jacq.) Walp, Ervatamia. Pandacaqui (Poir.) Mich., Ficus. Septica Burm. f., Acalypha. Amentacea Roxb., Arenga pinnata (Wumb) Merr. and Catyotta cumingii

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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