Category Archives: นิพนธ์ต้นฉบับ (Original Article)

Management of CO2 from Tourism Vehicles in Doi Inthanon National Park

this research has three objectives, the first objective is to study the amount of vehicles and the ways that the tourists are using to travel. The second objective is to study the average of the Carbondioxide (CO2) from the tourists’ vehicles. Finally, it is to find out the way to decrease CO2 emission that produced by the tourists’ vehicles in ... Read More »

Marketing of Wood Plastic Composite Products in Thailand

Objectives of this study were to determine the production, marketing and five competition forces analysis of Wood Plastic Composite (WPC) products in Thailand. The designed questionnaire was used as a tool for data correction. Statistical methods used for the data analysis are frequency, percent, mean, minimum and maximum. Results of the study revealed for that in 2009 there were only ... Read More »

Demand for Teak Lumber of Wooden Furniture Factory in Bangkok

Objectives of this study were to determine the variables affecting demand for teak lumber of wooden furniture factory in Bangkok, Prediction the demand for teak lumber of furniture factory in Bangkok and estimate the teak reforestation area that having the potential to sustain supply of teak timber to meet the requirement of such furniture factory in the next 5 years ... Read More »

Growth, Wood Production and Plant Succession in Pinus kesiya Plantations, Northern Head Watershed

Study on growth, production and plant succession in 14-34 year-old pine plantations (21 age classes) were carried out at Boakaew watershed station, ChiangMaiProvince. Average growth increments of Pinus kesiya in these plantations were determined: height, 0.82 m/yr; diameter at breast height, 1.28 cm/yr; and volume, 5.69 m3/ha/yr. There were 17-72 species of succession broadleaves tree species with density of 544-2,250 ... Read More »

Water Use and Water Use Efficiency of Eucalypt Intercropped with Cassava in Wattanakorn District, Sakaeo Province

The study on water use and water use efficiency of K7 and K51 eucalypt clones planted as intercropping with cassava were carried out at Wattanakorn District, Sakaeo Province. Diameter at breast height (DBH), total height (H) and water use were also determined for 2 month interval during 1-2 years old. Annual water use and water use efficiency of 1 and ... Read More »

Genetic Diversity of Cinnamomum porrectum (Roxb.) Kosterm. in Southern Thailand Detected by Inter Simple Sequence Repeat (ISSR) Analysis

Cinnamomum porrectum (Roxb.) Kosterm., local name Thep tharo, is a rare medicinal and aromatic tree mostly distributed throughout southern Thailand.  Inter simple sequence repeat (ISSR) markers were used to analyze genetic diversity of 6 populations, including Phangnga, Phuket, Phatthalung, Satun, Krabi, and Songkhla Provinces.  A total of 73 amplified bands were obtained from 117 individuals of all sampled populations using ... Read More »

Structure of Insect Population from Reclamation Process in Kaeng Khoi Limestone Mining, Saraburi Province

The study on structure of insect population from reclamation of limestone mining area in Reclamation Zone C, Reclamation Zone A, former reclamation area, dry evergreen forest and mixed deciduous forest is aimed at investigating species diversity and distribution of insect including density of insect population in the limestone area after reclamation and at examining variation of soil insect population during ... Read More »

Structure of Insect Population from Reclamation Process in Kaeng Khoi Limestone Mining, Saraburi Province

The study on structure of insect population from reclamation of limestone mining area in Reclamation Zone C, Reclamation Zone A, former reclamation area, dry evergreen forest and mixed deciduous forest is aimed at investigating species diversity and distribution of insect including density of insect population in the limestone area after reclamation and at examining variation of soil insect population during ... Read More »

Valuing Protected Area by Users: A Case Study of Khao Yai National Park

The objectives of this research were to investigate the characteristics of  protected area valuing by visitors to Khao Yai National Park and local people associated with the park,behavioral responses toward protected area management of those users and to study about the influence of protected area valuation on behavioral responses toward protected area  management. Data were collected  through  personal interview survey. ... Read More »

Potential Assessment of Hiking Trails in National Parks, Chiang Mai Province

Two objectives of this study were 1) to explore physical characteristics, conditions, and patterns of uses and 2) to assess potential of physical recreation resources of the hiking trails. The study areas included 10 hiking trails in five national parks, Chiang Mai Province. The results showed that all hiking trails were between 3 – 12 kilometers in length. Seven trails ... Read More »