Record Details     « New Search       Brief Record Full Record MARC Record     Bibliographic Data Control Number 55798 Date and Time of Latest Transaction 20120503221920.PM General Information 120503s |||||||||b ||00||| Cataloging Source PCARRD Local Call Number QH 320 P5 G65 Main Entry - Personal Name Gomez, Proserpina L. Title Statement Transport of organic matter in disturbed and undisturbed mangrove ecosystems at Pagbilao, Quezon Summary, Etc. The study on the transport of organic matter in disturbed and undisturbed sites at the mangrove reserves in Pagbilao, Quezon was undertaken from February 1982 to January 1983. Results showed significantly high amount of organic matter carried by the ebb waters from the undisturbed site to the open seas. Highest values of export were obtained in July and August when rains and monsoons were prevalent and litterfall production was at peak. Among the four organic size categories, the dissolved organic matter concentration per liter of tidal water exceeded the particulate fractions. This was highest during the dry months when temperature was high. The particulate fractions (i.e., CPOM, MPOM, FPOM) were greater during the wet months than the dry months. The higher waters of the spring tides carried more dissolved materials while the lower waters of neap tides transported much of the particulate fractions. The caloric content of the transported organic matter during the wet months was higher than the dry months. The bulk of these materials during those months included seeds and fruits which had higher caloric values than the other vegetation parts. A comparison of the materials from the two study sites showed that the additional decomposing materials from the disturbed site yielded a higher caloric value. The soil in the mangroves had high organic content. The extensive rooting systems of the species in the undisturbed area served as traps for the litterfall produced which were then accumulated in the soils. The "traps" were relatively few in the disturbed area where tidal waters washed most of the materials. Thus, organic content was lowest at the surface soils of the disturbed site. Throughout the period of study, mangrove leaves and twigs comprised the transported materials. During wet months, fruits and seeds exceeded the other plant parts. Varied components of animals were also observed Subject Added Entry - Topical Term MANGROVES   ORGANIC MATTER   NUTRIENT TRANSPORT   ENERGY VALUE           Physical Location           Digital Copy Not Available          Add to Book Cart  |   Download MARC