Species Diversity and Carbon Sequestration of Trees in a Hill Evergreen Forest Under a Permanent Reforestation Project in The Golden Jubilee of the King, Forest Plantation Target 9/2, Maehongson
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Abstract
The Permanent Reforestation Project aims to restore degraded forests and reduce the impacts of climate change by increasing forested areas, biodiversity, and promote public as well as other sector participation. The objective of this study was to determine tree species diversity, biomass, and carbon sequestration of a hill evergreen reforestation in the Forest Plantation Target 9/2, Mae Hong Son (FPT 9/2), Pai district, in the Mae Hong Son province, over an area of 1,194 rai or 191 hectares. A stratified random sampling of tree canopy density (high, moderate, and low) was employed by using aerial photographs for stratification. Plots of size 100 m x 100 m or 1 hectare in each stratum were demarcated and data related to tree species, diameter at breast height (DBH) and total height were collected.
The results indicated that there were a total of 1,996 trees or 665 trees per hectare from 62 species, 37 families, with the FAGACEAE family being the most abundant. Tree with the highest importance value index (IVI) was Pinus kesiya (76.30%), followed by Schima wallichii (37.74%), Lithocarpus collettii (17.16%), Eurya acuminata (15.70%), and Canarium subulatum (15.59%). The Shannon Wiener's Index was estimated to be 2.99, indicating a high level of diversity, with an average biomass of 293.88 tons per ha or 56,142.84 tons in total, with Pinus kesiya having the highest value of 141.34 tons per ha, followed by Schima wallichii, Lithocarpus collettii, Canarium subulatum, Betula alnoides, with values of 59.13, 17.42, 10.49 and 9.47 tons per ha, respectively. The total amount of carbon stored buy the trees in FPT 9/2 was 26,388.36 tons carbon or 138.13 tons of carbon per ha on average. The total carbon dioxide sequestration of trees was 96,754.12 tCO2eq or 506.46 tCO2eq per ha, with the top five tree species being Pinus kesiya, Schima wallichii, Lithocarpus collettii, Canarium subulatum, Betula alnoides, with estimated values of 243.57, 101.91, 30.02 and 18.08 tCO2eq per hectare, respectively. The results of this study will be useful for the management of forest resources, especially forests in highlands, and can be used for forest restoration management services.
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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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