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

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

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

3 Dendrochronological sampling sites 3 Studies in progress

4 Dendrochronological sampling sites 4

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

6 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

7 Spring temperature in ANCA region. Fig: Reconstructed mean temperature of pre monsoon months 1702-1720 1741-1750 1922-1974 1721-17401751–17651819-18301840-1857 1882-1888 1912-1922 7

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

9 Premonsoon precipitation 9 Fig: Reconstructed mean precipitation of pre monsoon months 1721-17401751-17651819-1830 1840-1857 1882-18881912-1922 1741-1750 1780-17881800-1818 1975-2010 1922-1974

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

11 Growth-climate Relationship 11

12 Studies in progess 12

13 Betula utilis –Apinampa CA 13

14 Betula utilis= Rara NP 14

15 Cedrus deodara Rara NP 15

16 Larix grifithiana = Kanchanjungha CA 16

17 Juniperus recurva = Kanchanjungha CA 17

18 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

19 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


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