Tag Archives: Volume_18

ECOLOGICAL STUDIES OF LEGUMINOUS TREE SPECIES IN DRY DIPTEROCARP FOREST IV. INTERSPECIFIC ASSOCIATION AND COVARIATION IN THE SAME HABITAT

Studies on the interspecific association and covariation between other tree species and the leguminous tree species and among them per se in dry dipterocarp forest were carried out in Sakaerat by random sampling 16 stands of 2,500 m2 sqaure plots in the area. The studies found 46 total tree species (D≥4.5 cm) with 8 leguminous tree species in this forest. ... Read More »

SPECIES DIVERSITY AND PHENOLOGY OF VASCULAR GROUND FLORA ALONG MAE MON STEAM AT 475 TO 575 MITOR FROM MEAN SEA LEVEL IN CHAE SON NATIONAL PARK, LAMPANG PROVINCE

A survey of the vascular ground flora along Mae Mon Stream at Chae Son National Park, Lampang Province was conducted from April 1996 to March 1997. The survey area extended from the headquarters at 475 m to a reservoir at 575 m, the total length of the study area being c. 2.6 km. Collecting data was done twice per month ... Read More »

DEVELOPMENT OF THE PROTOTYPE PROGRAM FOR SIMULATION OF PULP AND PAPER PROCESSING

Prototype program for pulp and paper process modeling was developed by Visual Basic version 6.0. This program calculates mass and energy balance of related operations in production process of pulp and paper industries. The features included analyzing the lost of paper pulp, chemical, energy and the properties production of pulp and paper. In addition, this program has the ability to ... Read More »

FINANCIAL ANALYSIS OF 25 YEAR ROTATION TEAK PLANTATION : A CASE STUDY AT MAE LI PLANTATION, CHANGWAT LAMPHUN

The objectives of the study were to investigate financial return of 25 year rotation of teak plantation at Mae Li Plantation, Changwat Lamphun and to compare the return of the teak plantation between normal and beehole borer damage cases of 3 products types or 6 cases namely: 1) defect saw log 2) sound saw log 3) defect square 4) sound ... Read More »

DEVELOPMENT OF FLOWER AND FRUIT OF EUCALYPTUS CAMALDULENSIS Dehnh.

The development of eucalypt’s flower and fruit was studies using the materials of Eucalyptus camaldulensis clone S 10. The development of the flower was classified into two phases, a phase before blooming and a phase during blooming. The phase before blooming took 4-6 months which was classified, basing on flower’s morphology, into 4 stages; flowers enclosed in a bract, 7 ... Read More »

BIOGICAL CONTROL OF STAIN FUNGUS IN RUBBERWOOD (Hevea Brasilliensis Muell. Arg.) By Trichoderma sp.

Two strains of Trichoderma harzianum Rifai. were tested as biological control agents against blue stain fungus (Botryodiplodia theobromae Pat.) under laboratory condition. Agarmethod was conducted to measure the growth of stain fungus. Steriled spore suspension was prepared by washing off the surface of Trichoderma plate with distilled water. The result showed that soluble metabolites in the suspension of each strain ... Read More »

MILK PACKAGE (U.H.T.) RECYCLE FOR COMPOSITE BOARD

The present investigation on milk package (U.H.T.) recycle for composite board by using various ratio of milk package (U.H.T.)/ wood flake of 15-years old Eucalyptus camaldulensis in composite board fabrication. The objective of this study us aiming to find out the suitable processing method of composite board. The experimental showed that the properties such as board density, board moisture content, ... Read More »

SPECIES DIVERSITY OF TREES IN DRY DIPTEROCARP FOREST AT SAKAERAT NAKORNRATCHASIMA PROVINCE III. TREE SPECIES DIVERSITY VARIATIONS AND SOIL FERTILITY

Studies on the variations of tree species diversity in dry dipterocarp forest at Sakaerat resulting from soil fertility were investigated by using the results of discriminant analysis of soil and plant relationships in which soil fertility in forms of the accumulation down  to 50 cm depth of soil organic matter and macronutrients were found to be effectively discriminated the similarity ... Read More »

PRODUCTION AND MARKETING OF PLYWOOD IN THAILAND

The objectives of the study were to determine the production and marketing of plywood in Thailand. The results of the study indicated that there were 21 plywood mills in 2000. There are 3 kinds of raw materials being used for plywood production namely, veneer logs, veneers and glues. During the 5 years period (1996-2000) revealed that the highest and lowest ... Read More »

OBSERVED AND HYPOTHETICAL EFFECT OVER TIME OF THE TERRACED FOREST PLANTATION ON SOIL AND WATER LOSSES AT DOI ANGKHANG HIGHLAND PROJECT, CHIANG MAI

Change of soil and water losses over time of 6 exotic-species from Taiwan namely: Aleurites Montana, Zalkova formosana, Liquidambar formosana, Acacia confuca, Fraxinus griffithic, and Paolonia taiwaniana plated on 2×2.5 m spacing with narrow bench terrace at Doi Angkhang Highland Project, Fang District, Chiang Mai, was observed using runoff plots of 4×15 m installed for each species. Storm runoff and ... Read More »