Species Diversity and Carbon Storage in Biomass of Tree and Sapling in the Ban Nong Kwang Community Forest, Uttaradit Province
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Abstract
This study aimed to determine the plant community characteristics and biomass carbon storage of trees and saplings in an exploited area of Ban Nong Kwang Community Forest, Uttaradit Province, spread over an area of 804 rai. Ten sample plots of size 40 m x 40 m were randomly established in three zones according to the watershed classification area. All the trees and saplings were identified and measured for their diameter at breast height (DBH) and total height. The importance value index (IVI) was used to identify the dominant species. The biomass of trees and saplings was calculated using allometric equations, and the carbon storage in the biomass was estimated.
There were 75 tree species in 61 genera and 32 families found in the study area. Among these, the Rubiaceae family had the highest number of tree species (9 species), followed by Fabaceae (8 species), Dipterocarpaceae, Anacardiaceae, Malvaceae, and Bignoniaceae (5 species), while the other families had less than 5 species. Based on the IVI, Xylia xylocarpa (Roxb.) W.Theob. var. xylocarpa was the most dominant tree species. The total tree density was between 122.5–177.8 trees/rai (765.63–1,111.25 trees/ha), and the Shannon-Wiener index of species diversity was between 2.54–2.97. The total biomass (aboveground and belowground) was estimated to be between 15.04–16.93 tons/rai (94.00–105.81 tons/ha), with there being no significant differences in biomass among the watershed classes (P>0.05). The carbon storage in biomass was between 7.07–7.96 tons/rai (41.19–49.75 tons/ha). The total carbon stock in the study area was estimated at 6,087.93 tons, accounting for 22,322.41 tonCO2e. These results can be used as a baseline for developing the Thailand Voluntary Emission Reduction Program (T-VER).
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ข้าพเจ้าและผู้เขียนร่วม (ถ้ามี) ขอรับรองว่า ต้นฉบับที่เสนอมานี้ยังไม่เคยได้รับการตีพิมพ์และไม่ได้อยู่ในระหว่างกระบวนการพิจารณาตีพิมพ์ลงในวารสารหรือสิ่งตีพิมพ์อื่นใด ข้าพเจ้าและผู้เขียนร่วม (ถ้ามี) ยอมรับหลักเกณฑ์และเงื่อนไขการพิจารณาต้นฉบับ ทั้งยินยอมให้กองบรรณาธิการมีสิทธิ์พิจารณาและตรวจแก้ต้นฉบับได้ตามที่เห็นสมควร พร้อมนี้ขอมอบลิขสิทธิ์ผลงานที่ได้รับการตีพิมพ์ให้แก่วารสารวนศาสตร์ คณะวนศาสตร์ มหาวิทยาลัยเกษตรศาสตร์ กรณีมีการฟ้องร้องเรื่องการละเมิดลิขสิทธิ์เกี่ยวกับภาพ กราฟ ข้อความส่วนใดส่วนหนึ่ง หรือ ข้อคิดเห็นที่ปรากฏในผลงาน ให้เป็นความรับผิดชอบของข้าพเจ้าและผู้เขียนร่วม (ถ้ามี) แต่เพียงฝ่ายเดียว และหากข้าพเจ้าและผู้เขียนร่วม (ถ้ามี) ประสงค์ถอนบทความในระหว่างกระบวนการพิจารณาของทางวารสาร ข้าพเจ้าและผู้เขียนร่วม (ถ้ามี) ยินดีรับผิดชอบค่าใช้จ่ายทั้งหมดที่เกิดขึ้นในกระบวนการพิจารณาบทความนั้น”
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