Thai J. For. 35 (3) : 86-99 (2016) ªµ¦µ¦ª«µ¦Í 31 (1) : 1-8 (2556) Original article Carbon and Nutrient Storage in Plant Biomass of Natural Forest nearby Thung Luang Royal Project Development Center, Chiang Mai Province Taparat Seeloy-ounkaew1* Soontorn Khamyong2 1TEAM Consulting Engineering and Management Co., Ltd., Bueng Kum, Bangkok 10230, Thailand 2Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand *Corresponding Author, E-mail:
[email protected] Received: Aug 3, 2015 Accepted: Sep 17, 2016 ABSTRACT Amounts of carbon and nutrient storage in plant biomass of natural forests were assessed near the Thung Luang Royal Project Development Center, Chiang Mai province. Fifty sample SORWV [P ZHUHUDQGRPO\VHOHFWHGDORQJDODWLWXGLQDOJUDGLHQWXVLQJVWUDWL¿HGVDPSOLQJ Stem girth over bark at 1.3 m above ground and the height of all tree species taller than 1.5 m were measured in all plots. The amounts of carbon and nutrient biomass were calculated. In WRWDOVSHFLHV JHQHUDDQGIDPLOLHV ZHUHLGHQWL¿HGPinus kesiya Royle ex Gordon, Castanopsis acuminatissima (Blume) A.DC., Schima wallichii (DC.) Korth, and Quercus brandisiana Kurz were the dominant tree species. The mean plant species diversity value using the Shannon-Wiener equation (SWI) was 4.01+0.86. The mean biomass was 237.27+89.10 Mg ha-1, separated into stem, branch, leaf, and root organs with values of 153.97+58.57 Mg ha-1 (64.89% of all biomass), 48.16+20.05 Mg ha-1 (20.30%), 3.92+1.03 Mg ha-1 (1.65%), and 31.21+9.90 Mg ha-1 (13.15%), respectively, and the carbon biomass was 117.22+44.04 Mg ha-1.