"Trans-Disciplinary Approach to Solve Environmental Issues - PowerPoint PPT Presentation

"Trans-Disciplinary Approach to Solve Environmental Issues – Case Studies in Cambodia and the Surrounding Coast" Comments by Tetsukazu Yahara Center for Asian Conservation Ecology, Kyushu University

Forest loss in Cambodia

Forest loss in Cambodia

Assessing tree diversity loss in forest plots Kg. Thom DNA barcodes Identification 2000 × logged 2010 Diversity is decreasing under illegal loggings

Publication of pictured guides for forest trees

Interviewing local people using a pictured guide

Studies to support community forestry • Sap flux measurements • Microclimate measurements – T a , H r , R s , P, WS &WD • Soil water condition – Θ & Ψ • Groundwater level

Studies to support community forestry Volume Density 1200 100 Density(trees/ha ） Volume （ m 3 /ha ） 1000 80 785 63.4 800 60 593 600 43.1 40 400 20 200 0 0 2010 2007 2010 2007 Plant species diversity is also being recovered

Studies to support rubber plantation forestry Cambodia, Kg. Cham province Rubber Research Institute フラックスタワー (30m) Flux tower (30m) Tree size monitoring （ハワイ大と共同） Tomo’omi Kumagai (Nagoya Univ) every two week Thomas Giambelluca (Univ of Hawaii)

Bokor National Park, Cambodia [Alt. (0-) 266 - 1014m]

Studies to support National Park management 98 Family, 740 species of trees . • New species … 13 spp. < • New records in Cambodia … 110 spp. < • Endemic species … 35 spp. < Flora of Bokor is characterized by high plant diversity and endemism; a “ Hotspot ” in Indochina. Scientific name: Elaeocarpaceae Elaeocarpus Scientific name: Euphorbiaceae Croton Local name: Common name: Specimen No.: 1761 [=1484, 2484] No. 2528 # #

Acknowledgement Forestry Administration General Directorate of Rubber DG: Dr. Chheng Kimsun DG:Mr. Ly Phalla Dr. Sokh Heng Dr. Yin Song Mr. Samreth Vanna Dr. Khun Kakada Mr. Chhang Phourin Mr. Lim Khantiva Mr. Choeung vong Narith Mr. Ma Vuthy Sponsors Global COE Program “Asian Conservation Ecology” (JSPS, Japan, 2009-2013) . The Environment Research and Technology Development Fund (S9) (MOE, Japan, 2011-2015). Leading Graduate Program “Decision Science for a Sustainable Society” (JSPS, Japan, 2013-2019).