Journal Issue: EnNRJ Vol. 8 No. 1
Issued Date
2010
Resource Type
Language
tha
eng
eng
File Type
application/pdf
Access Rights
open access
Rights
ผลงานนี้เป็นลิขสิทธิ์ของมหาวิทยาลัยมหิดล ขอสงวนไว้สำหรับเพื่อการศึกษาเท่านั้น ต้องอ้างอิงแหล่งที่มา ห้ามดัดแปลงเนื้อหา และห้ามนำไปใช้เพื่อการค้า
Rights Holder(s)
Faculty of Environment and Resource Studies Mahidol University
Journal Volume
EnNRJ Volume 8
(2010)
Articles
Geographic information system for risk area assessment on natural gas pipeline construction in Nakhon Nayok Province
(2010-04) Ponson Chernkwansri; Sura Pattanakiat; Charlie Navanugraha; Mahidol University. Faculty of Environment and Natural Resource Studies
The objective of this study is to identify potential risk areas caused by the pipeline construction project in Nakhon Nayok province. The potential surface analysis was employed for the manipulation process using critical factors including soil drainage, clay minerals, soil texture, slope, relative humidity, air quality index, distances from bodies of water, roads, and the pipeline. The evaluation of weighting and rating scores has been proposed by experts using 2 main methods, including scaling and hierarchical methods. The risk areas have been divided into high, moderate and low levels. The outputs of these two methods are compared.
It was found that the risk areas identified by the scaling method consist of high risk areas of 316.69 square kilometers (14.77%), moderate risk area of 1,523.05 square kilometers (71.04%), and low risk areas of 304.12 square kilometers (14.19%). Meanwhile, the risk areas evaluated by the hierarchical method consist of high risk areas of 219.47 square kilometers (10.24%), moderate risk areas of 1,839.05 square kilometers (85.78%), and low risk areas of 85.34 square kilometers (3.9%). The comparison of those two methods using the Kappa index has shown the value of 0.66. Thus, those two methods were only in the relation of 66 %. The assessment on land utilization within the high risk areas was analyzed based on the output of the scaling method with larger high risk areas. The land use patterns found in the high risk area include the following areas agriculture of 200.50 square kilometers (63.31%), urban of 74.71square kilometers (23.59%), forest of 5.35 square kilometers (1.69%), water bodies 20.71 square kilometers (6.54%), and others 15.42 square kilometers (4.87%). The purpose of this study was to apply the Geographic Information System for to identify potential risk areas. Geographic Information System (GIS) are a set of computer tools for collecting, storing, transforming and displaying spatial data from the real world.
The analysis of ecotourism as dynamics in common property management: A case study of Plai Phong Pang Thai-Style House Conservation Club, Tambon Plai Phong Pang, Amphoe Amphawa, Samutsongkhram Province
(2010-04) Usa Uamson; Kulvadee Kansuntisukmongkol; Mahidol University. Faculty of Environment and Natural Resource Studies
This study aims to analyze the patterns of management of common property and
tourism by Plai Phong Pang’s Thai-style house conservation club. The analysis applies
the conceptual framework of dynamic common property management (Oakerson, 1992)
and the eco-tourism principle (Gail Nash, 1997, referred in Yos Santasombatr and
others, 2004) to explain change and tourism resource management patterns as a
community based common property. This research applies qualitative research methods
by conducting a descriptive analysis according to Oakerson (1992). The factors under
study are resource patterns, utilization rules of each resource, internal and external
factors affecting the decision-making structure, relationship patterns among community
members, and the results of common property management. Finally, the researcher
expects to see a changing pattern and adaptation in common property management in
the Plai Phong Pang community. The researcher collected data through the methods of
non-participant observation, in-depth interviews, and focus group discussions. This
study found that there are three changing phases of tourism resource management as a
community common property; during the 1st phase (1999 - 2002) tourism activity had
been introduced to the community but was not highly prevalent at that moment. During
the 2nd Phase (2002 -2006) tourism in the area was very high. There were a higher
number of tourists and those who utilized common properties during this period. And
for the final phase, the 3rd phase (2006 until now), more investors in resort building
came to Plai Phong Pang and the nearby sub-districts in Amphawa. The analysis
according to the four factors of Oakerson (1992) found that (1) tourism resources were
open for free utilization and the rate of utilization seems to be higher. (2) the rule of
common property utilization in the district is not clearly functioning through negotiation
and the community information process. Additionally, the rule of the marine
transportation department is also functioning to control the environmental impacts from
motor boats. (3) Sub-district members are living together in agricultural society. All of
them are living as kin. However the individual living style is starting to gain more
influence in the area. (4) When the results of tourism resource management as a
common property in Plain Phong Pang sub-district was compared with the principle of
eco-tourism according to Gail Nash (1997), it was found that recently the tourism
management of the local conservation club has shifted away from eco-tourism concept
due to a lack of awareness and avoidance of the following factors: environmental
impacts, saving funds for preservation, distribution of benefits among community
members and the nearby communities, and a proper management according to the
natural surroundings based on sustainable resource management.
Sound absorption capacity of Oil Palm Frond Fiberboard with different finishing
(2010-04) Tanasri Sihabut; Nikhom Laemsak; Mahidol University. Faculty of Environment and Natural Resource Studies
This research studied primarily the sound absorption of oil palm frond fiberboard with different finishing, i.e. rough, screen and perforated surfaces. All boards confirmed that the higher the frequencies, the better the sound absorption coefficients. Although the density of the samples with rough surface was the lowest, their sound absorption capacity was the highest at every measured octave band frequencies. Perforated samples showed the better sound absorption coefficients than the ones with screen surface. When comparing their sound absorption coefficients with those of the sound absorbing materials in commercial use, oil palm frond fiberboards generally showed a better sound absorption capacity.
Quantitative analysis of HFCs, PFCs, and SF6 emission from Thailand industries
(2010-04) Varittha Sriruang; Nathsuda Pumijumnong; Winai Nutmagul; Mahidol University. Faculty of Environment and Natural Resource Studies
This study is a documented research work that determines the emission quantities
of HFCs, PFCs, and SF6 in Thailand. The information included in this study is
comprised of secondary data that have been collected from relevant government agency
sources and the results of a field survey. The field survey provides information about
the production process, the production output, and the emission factors for each specific
production process, extracted from the Revised 2006 IPCC Guidelines for National
GHG Inventories, Volume 3. The effect of the use of HFC-134a in the manufacturing
and servicing of household refrigerators and automobile air-conditionings was
calculated during 2001-2006 and the results indicated that the direct emission of HFCs
based on CO2 and carbon equivalent was 59,280,394 and 16,300,616 MT Carbon,
respectively. Similarly, the effect of the use of SF6 in the manufacture was calculated
during 2001-2006 and the results indicated that the direct emission of SF6 based on CO2
and carbon equivalent was 29,473 and 8,038 MT Carbon, respectively. The direct
emission was calculated from the amount of HFCs, PFCs, and SF6 that had leaked or
had purged directly into the atmosphere. It was found that the direct emissions from
manufacturing and servicing refrigerator had increased and the different emissions
depend on the amount of GHG that was converted which was compared to the amount
of equivalent CO2.
Title
EnNRJ Vol. 8 No. 1
Author's Affiliation
Mahidol University. Faculty of Environment and Resource Studies
มหาวิทยาลัยมหิดล. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์
มหาวิทยาลัยมหิดล. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์
Keyword(s)
Climate change
Biodiversity
Disaster
Ecological
Environmental modelling
Environmental dynamics
Environmental pollution
Emerging contaminants
Transboundary pollution
Waste and wastewater treatments
Hazardous wastes
Natural resource management
Multidisciplinary sciences
Environment and Natural Resources Journal
Biodiversity
Disaster
Ecological
Environmental modelling
Environmental dynamics
Environmental pollution
Emerging contaminants
Transboundary pollution
Waste and wastewater treatments
Hazardous wastes
Natural resource management
Multidisciplinary sciences
Environment and Natural Resources Journal