Tag Archives: Volume_19_21

PLANT SPECIES DIVERSITY AND SOIL PROPERTY CHANGES IN DIFFERENT-YEAR OLD TEAK PLOTS OF MAEHAD PLANTATION, NONGMUANGKHAI DISTRICT, PHRAE PROVINCE

The Royal Forest Department had objectives for forest plantation that post-ten years maintenance plantation must avoid thinning and let them develop to natural forest. It led to this research which aimed to study 1) changing of plant species diversity in different-year old teak plots 2) changing of soil property in those teak plots and 3) the similarities between plant species ... Read More »

AN ASSESSMENTS OF MITIGATION OPTIONS IN THAI FORESTRY SECTOR FOR REDUCING CARBON EMISSIONS

Six mitigation options through six different management scenarios were assessed in terms of their effectiveness in reducing carbon emissions. They were analysed in terms of various alternative options; current trend scenario, based on current forest policies in operation, and two scenarios put forward in the Thai Forestry Sector Master Plan which are Master Plan Scenario and Self Sufficient Scenario. Three ... Read More »

THE MARKET STRUCTURE, CONDUCT AND PERFORMANCE OF PLYWOOD IN THAILAND

The objectives of this study were to determine the plywood market structure, conduct, and performance of plywood in order to formulate the action plan for plywood marketing in the future. The study was conducted by using questionnaires. The results of the study indicated that market type of plywood was identified to be an oligopoly this mainly due to the concentration ... Read More »

ROLE OF REFORESTATION ON CARBON SINK AT RE-AFFORESTATION RESEARCH AND TRAINING STATION,CHANGWAT NAKHON RATCHASIMA

Study of carbon sink in plantations and the areas covered with Neyraudia reynaudiana and Imperata cylindrica was conducted at Re-afforestation Research and Training Station, Nakhon Ratchasima Province. The objectives are to study the capacity of carbon sink in various patterns of land use. Three pits of soil samples were excavated from each plot. Each soil pit, four levels of soil ... Read More »

USING ANTS AS INDICATORS OF PLANT COMMUNITIES AT KHAO YAI NATIONAL PARK

Studies on using ants as indicators  of Khao Yai National Park were carried out from November 2000 to October 2001. The 4 different plant communities such as mixed deciduous forest, tropical rain forest, dry evergreen forest, and hill evergreen forest were selected. One hundred sampling plots size 30 x 30 cm.2 were placed in each plant community. The specimens were ... Read More »

ESTIMATION OF SOIL LOSS BY USING EROSION BRIDGE : A GUIDE TO SUSTAINABLE FOREST MANAGEMENT

Soil loss estimation by using erosion bridge to be used as aguide to sustainable forest management was conducted in Huai Nam Gud, Khunkong Watershed Research Station, Chiangmai. The extimation of soil loss in each landused type was done, including, shufting cultivation, natural pine forest, pine forest plantation, filled side-slope and forest road to indicate sustainable forest management. The results indicated ... Read More »

THE ROLE AND BEHAVIOR OF SOME MAJOR INSECT POLLINATORS ON POLLINATION OF TEAK FLOWERS (TECTONA GRANDIS LINN.F.)

Studies of the role and behavior of major insect pollinators on pollination of teak flowers (Tectona grandis Linn.f.) were carried out at Maegar Seed Orchard, Phayao Province during July 1998-October 2000. The studies focused on diversity of insects on teak inflorescence, foraging visitors behavior, visitation rate, frequency of each species and amount of pollen grain transferred. The insects visiting on ... Read More »

GENETIC DISCRIMINATION OF EUCALYPTUS CAMALDULENSIS DEHNH. BY DNA FINGERPRINTING

Genetic discrimination of Eucalyptus camaldulensis Dehnh. Was carried out by using random amplified polymorphic DNA (RAPD) fingerprint. There were 38 samples composed of clone S10, clone T5, 14 selfing progenies and 22 outcrossing progenies of both clones. The objectives of this study were to develop technique for genetic discrimination of E. camaldulensis, to discriminate DNA fingerprint among samples and to ... Read More »

MARKETING SYSTEM OF HARDBOARD IN THAILAND

The main objectives of this study were to determine the production, marketing, market structure, market conduct and market performance of hardboard in order to formulate the action plan for forest plantation and marketing of hardboard in the future. The study was conducted by using questionaires. The results of the study indicated that there were 4 hardboard mills. The raw materials ... Read More »

DIVERSITY OF VASCULAR PLANTS IN PHU KHIEO WILDLIFE SANCTUARY, CHAIYAPHUM PROVINCE

A study of vascular plant diversity at Phu Khieo Wildlife Sanctuary, Chaiyaphum Province was conducted from 1 April 1998 through 1 April 1999. The study objectives included surveying vascular plants species, producing a checklist with habits, conservation status and addressing conservation problems. The results indicate that 1,417 vascular plants species, 753 genera, 196 families inhabit this area, comprising of nonseed ... Read More »