Dendroclimatic study in Nepal Himalaya: an update 1 PAGES 4 th Asia 2k Workshop, RIHN, Kyoto, Japan 19-20 March 2015.

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Presentation transcript:

Dendroclimatic study in Nepal Himalaya: an update 1 PAGES 4 th Asia 2k Workshop, RIHN, Kyoto, Japan March 2015

Narayan Prasad Gaire Sanjaya Bhandari Uday Kuwar Thapa Dinesh Raj Bhuju Madan Koirala Santosh Kumar Shah Rupraj Timilsena Bimal Sharma 2 Research Team

Dendrochronological sampling sites 3 Studies in progress

Dendrochronological sampling sites 4

Tsuga dumosa RW chronology from Apinampa CA Bhandari et al (in preparation) 5

Ring growth response with climate Fig: Correlation coefficient analysis of the ring width growth of Tsuga dumosa and the average annual temperature and precipitation. * * * Significant & Positive 6

Spring temperature in ANCA region. Fig: Reconstructed mean temperature of pre monsoon months –

Spatial coverage Fig: Correlation between CRU and Reconstructed average Temp of March-May 8

Premonsoon precipitation 9 Fig: Reconstructed mean precipitation of pre monsoon months

Abies pindrow RW chronology= Khaptad NP (Thapa et al 2013, Banko Jankari) 10

Growth-climate Relationship 11

Studies in progess 12

Betula utilis –Apinampa CA 13

Betula utilis= Rara NP 14

Cedrus deodara Rara NP 15

Larix grifithiana = Kanchanjungha CA 16

Juniperus recurva = Kanchanjungha CA 17

Conclusions  Few new chronologies having dendro climatic potential developed  Temperature reconstruction showed several cooling and warming trends  Analysis of many chronology is in progress What Next  River basin wise (Watershed based) hydro climate reconstruction using multiproxy data of multiples species 18

Acknowledgements  Research Institute for Humanity and Nature, Japan  Workshop organizing team  Nepal Academy of Science and Technology (NAST)  CDES, DNPWC, APNC, DHM, Department of Forest 19