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提供: 広島大学デジタル博物館
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===Effects of logging on the lowland tropical rain forest in Peninsular Malaysia===
 
===Effects of logging on the lowland tropical rain forest in Peninsular Malaysia===
 
Toshinori Okuda (Graduate School of Integrated Sciences for Life, Hiroshima University), co-authored with; Toshiro Yamada, Tetsuro Hosaka, Masahiro Miyasaku, Mazlan Hashim, Alvin Lau Meng Shin, Saw Leng Guan, Ken Shima, Toshihiro Yamada, Kaoru Niiyama, Yoshiko Kosugi, Tsuyoshi Yoneda, Eng Seng Quah<br>
 
Toshinori Okuda (Graduate School of Integrated Sciences for Life, Hiroshima University), co-authored with; Toshiro Yamada, Tetsuro Hosaka, Masahiro Miyasaku, Mazlan Hashim, Alvin Lau Meng Shin, Saw Leng Guan, Ken Shima, Toshihiro Yamada, Kaoru Niiyama, Yoshiko Kosugi, Tsuyoshi Yoneda, Eng Seng Quah<br>
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Recent rapid increases in ambient CO2 are largely attributed to deforestation in tropics. However, the carbon emissions from terrestrial ecosystem are mostly based on the area-wise statistics of “forest land” which is defined as an area with minimum crown coverage >10%, while extensive biomass (more than 50%) has been removed through “forest degradation” processes resulted from the over-harvesting in legitimated logging regime or illegal logging. Therefore, if the carbon losses accompanied by the forest degradation had been added on the forest statistics, actual carbon losses and emissions could have been larger than those were reported. Therefore, recovery process accompanied after forest degradation needs to be thoroughly monitored and reviewed in order to evaluate long term NET carbon losses. <br>
 
Recent rapid increases in ambient CO2 are largely attributed to deforestation in tropics. However, the carbon emissions from terrestrial ecosystem are mostly based on the area-wise statistics of “forest land” which is defined as an area with minimum crown coverage >10%, while extensive biomass (more than 50%) has been removed through “forest degradation” processes resulted from the over-harvesting in legitimated logging regime or illegal logging. Therefore, if the carbon losses accompanied by the forest degradation had been added on the forest statistics, actual carbon losses and emissions could have been larger than those were reported. Therefore, recovery process accompanied after forest degradation needs to be thoroughly monitored and reviewed in order to evaluate long term NET carbon losses. <br>
  

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