Tag Archives: Volume_33_Number_3

Effects of Past Burning Frequency on Woody Plant Structure and Composition in Dry Dipterocarp Forest

Anthropogenic burning in dry dipterocarp forests has become a common phenomenon throughout Thailand. Too frequent fires may affect plant species composition, soil properties and processes, and nutrient dynamics, thereby impacting upon ecosystem productivity and sustainability. Conversely, complete fire exclusion, may result in changes to ecosystem components, and an increased risk of high-intensity wildfire. This study aimed to investigate the effects ... Read More »

Relationships Among Insect Pollinators, Micro-environmental Factors and Fruit Settings of Teak (Tectona grandis L.F.) in Seed Orchards, Thailand

The ecological effects of insects in the tropics have been studied generally in terms of its impact on species diversity and abundance. However, the information is very limited regarding the interrelationship of insects on ecological processes such as insect pollinators, environmental variables and fruit settings of teak. All data were studied at five main teak seed orchards in Thailand. Observations ... Read More »

Snorkelers’ Perceptions toward Coral Bleaching at Tarutao National Park, Satun Province

The coral bleaching in 2010 has led to substantial coral mortality in Tarutao National Park. This phenomenon affects the well-being of coral and its associated marine life, and can potentially harm marine tourism activities in the park, particularly snorkeling and scuba diving. The main objectives of this research were to investigate snorkelers’ perception on coral bleaching and their satisfaction level ... Read More »

Roles of a Pine (Pinus kesiya) Plantation under the Doi Tung Reforestation Royal Project on Water Storages, Chiang Rai Province, Northern Thailand

A 22-year-old pine (Pinus kesiya Royle ex. Gorgen) plantation under the Doi Tung Reforestation Royal Project, Chiang Rai province, was investigated for the potential of water storages in plant biomass of pine and successional tree species, and soil system. Ten sampling plots, each of size 40×40 m2, were used for vegetation study. The plots were located randomly in areas of ... Read More »

Predicting Land-use and Land-cover Patterns Driven by Different Scenarios in the Emerald Triangle Protected Forests Complex

The Emerald Triangle is the largest extensive intact block in the Greater Mekong Sub-region, which still remains along the tri-national borders between Thailand, Lao PDR and Cambodia. The remaining habitats are very important for the persistence of wide-ranging species in this area. This research aimed to assess land-use change in recent years and to predict land-use patterns across the Emerald ... Read More »

Pollen Morphology of some Thai Artabotrys R.Br. (Annonaceae)

The pollen morphology of 15 Thai Artabotrys species were investigated under light microscope and scanning electron microscope. The result showed all Thai Artabotrys species are monad pollen, inaperture and apolar. The size of pollen grains are medium to large with range from 33.91 ± 0.41 to 55.90 ± 3.19 µm. The pollen shape classified based on P/E that were divided ... Read More »

Influences of Environmental Factors on Tree Distribution of Lower Montane Evergreen Forest at Doi Sutep-Pui National Park, Chiang Mai Province

The influences of environmental factors on tree distribution of lower montane evergreen forest were carried out at Doi Sutep-Pui National Park, Chiang Mai province during October 2012. The objective aimed to clarify the principal environmental factors on tree distribution. Temporary plots, 20 × 50 m, were established based on altitudinal gradient from 900 to 1,600 meter above mean sea level, ... Read More »

Ecosystem Water Storage in a Teak Plantation under the Doi Tung Reforestation Royal Project, Chiang Rai Province, Northern Thailand

The water storage in an ecosystem of a 22-year-old teak (Tectona grandis L.f.) plantation under the Doi Tung Reforestation Royal Project in Chiang Rai province was studied using five sampling plots, each of size 40×40 m2, which arranged randomly in areas of an altitude ranging between 515 and 704 m m.s.l. All individuals of teak and successional species of height ... Read More »

Construction of a Standard Volume Table: A Case Study in Three Different Aged Teak Plantations in Bago Township,Bago Region, Myanmar

In Myanmar, scientifi research related to construction of a standard volume table that represents teak plantations in a specifi area are rarely found, although it plays signifiant role in sustainable management of teak plantations. Therefore, in this study, a standard volume table was constructed, based on three teak plantations established in Bago Township by Forest Department (FD) of Myanmar. This is one area of ... Read More »