DDF-sandstone DDF-volcanic rock MDF-sandstone MDF-shale 60 50 31 115 88 47 125 99 40 119 96 45 200 150 100 50 0 Species richness Genera Family Fig.1 Species, genera and family richness of plants in DDF and MDF Species, genera, family richness teak, S. oleosa and T. mucronata. The bamboo had the highest dominance, followed by teak, X. xylocarpa, and T. mucronata. The bamboo had also the highest IVI (19.179%), followed by teak, Sterculia pexa. Species, genera and family richness of plants in DDF and MDF are shown in Fig.1. 2. Species diversity and forest conditions 2.1 Species diversity Shannon-Wiener Index (SWI) of species diversity was determined by the concept of heterogeneity. In DDF, species richness on sandstone (60 species) was lower than volcanic rock (115 species). SWI values on sandstone and volcanic rock were calculated to be 3.17 and 4.76, respectively. In MDF, species richness on sandstone (125 species) was higher than shale (119 species), and SWI on these rocks was the same; 5.65. 2.2 Forest conditions: Number of trees having different stem- girths was used for FCI calculation. In DDF on sandstone, number of trees with girths of <25, 26-50, 51-75, 76-100 and >100 cm within a plot were 395, 111, 32, 6 and 0.8, respectively, and FCI was calculated to be 1.87. On volcanic rock, they were in the order of 338, 108, 29, 5.5 and 3.33, and FCI was 4.31. In MDF on sandstone, number of trees were 529, 63, 24, 8 and 7.2, respectively, FCI was 8.40. On shale, they were 342, 22, 15, 6.8 and 12.4, FCI was 13.3. 3. Plant biomass in DDF and MDF Amounts of plant biomass in DDF were lower than MDF. The DDF on sandstone and volcanic rock had amounts of 84.18 and 95.38 Mg ha-1, respectively, while MDF had higher biomass both on sandstone (195.83 Mg ha-1) and shale (177.16 Mg ha-1) (Table 1, Fig.2), Biomass allocation was the highest in stem, followed by branch, root and leaf. 286 Proceedings of the International Conference on Climate Change, Biodiversity and Ecosystem Services for the Sustainable Development Goals (SDGs): Policy and Practice 27-29 June 2016, Cha-am, Phetchaburi, Thailand
Proceedings of International Conference on Climate Change, Biodiversity and Ecosystem Services for the Sustainable Development Goals : Policy and Practice 27-29 June 2016 at the Sirindhorn International Environmental Park, Cha-am, Phetchaburi, Thailand
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