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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

4.  Carbon  storages  in  DDF  and MDF 4.1  Biomass  carbon  In  Table  2  and  Fig.2,  carbon  amounts  in  plant  biomass  of  DDF  were  lower  than  MDF.  DDF  on  sandstone  and  volcanic  rock  had  amounts  of  41.79  and  47.12  Mg  ha-1,  respectively.  Amounts  in  MDF  sandstone  (96.56  Mg  ha-1)  and  shale  (87.36  Mg  ha-1)  were  higher  than  DDF.  Carbon  allocated  in  various  plant  organs  was  in  the  same  trend  as  the  biomass. A.  DDF Sandstone:  Hiang  had  the  highest  carbon  storage  (19.36  Mg  ha-1),  followed  by  G.  usitata  (5.96),  D.  tuberculatus  (4.17),  S.  obtusa  (3.39),  S.  siamensis  (3.21)  and  D.  oliverli  (0.79). Volcanic  rocks:  Teng  had  the  highest  amount  (16.0  Mg  ha-1),  followed  by  Rang  (10.13),  Pluang  (3.0),  X.  xylocarpa  (2.53),  D.  assamica  (1.41),  T.  alata  (1.21)  and  Hiang  (1.20). B. MDF Sandstone:  I.  malayana  had  the  highest  amount  (28.31  Mg  ha-1),  followed  by  X.  xylocarpa  (10.50),  T.  mucronata  (9.46),  teak  (6.28),  C.  formosum  (3.16),  S.  pinnata  (3.08)  and  L.  duperreana  (3.06). Shale:  Teak  had  the  highest  amount  (22.19  Mg ha-1),  followed  by  T.  mucronata  (10.43),  X.  xylocarpa  (8.97),  P.  macrocarpus  (4.56),  S.  oleosa  (4.10),  L.  duperreana  (2.74)  and  S.  pinnata  (2.57). Khamyong  et.  al.  (2014)  reported  that  annual  carbon  storages  in  DDF  and  MDF-DDF  in  the  Center  were  1.65  and  2.58  Mg  ha-1  yr-1,  respectively.  In  other  areas,  DDF  had  carbon  of  52.63  Mg  ha-1  (Wattanasuksakul,  2012)  and  62.0  Mg  ha-1  (Pongkhamphanh,  2015).  The  highest  amount  of  biomass  carbon  was  found  in  the  upper  montane  forest,  347.91  Mg  ha-1,  as  in  12. 4.2  Soil  carbon  storages Soil  features  influence  plant  growth  and  production.  In  Table  3,  soil  depths  and  types  were  different  among  forest  types.  DDF  soil  on  sandstone  had  intermediate  deep,  Order  Ultisols  while  that  on  volcanic  rock  was  shallow,  Order  Entisols/Inceptisols.  MDF  soil  on  sandstone  was  deep,  Ultisols,  shallow  on  shale,  Inceptisols,  and  deeper  on  shale/  limestone,  Alfisols/Vertisols.  Thus,  carbon  storages  in  soils  varied  between  12.27  and  65.56  Mg  ha-1. Table  2  Average  carbon  amounts  in  plant  biomass  in  DDF  and  MDF Forest Parent rock Carbon in biomass (Mg ha-1) type Stem Branch Leaf Root Total DDF Sandstone (n =12) 27.44 + 4.13 7.71 + 1.13 1.03 + 0.19 5.60 +0.92 41.79 + 6.28 Volcanic rocks (n = 24) 30.66 + 9.50 9.63 +3.81 0.97 + 0.27 5.87 +1.63 47.12 +14.88 MDF Sandstone (n = 5) 55.88 + 12.81 25.34 + 10.50 1.16 +0.59 14.17 +3.24 96.56 +25.13 Shale (n = 5) 51.43 + 9.34 21.21 +4.66 1.23 + 66 13.48 +2.67 87.36 +16.83 288 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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