Patterns of Phenological Characteristics of Important Tree Species of Kumaun Himalaya

Phenology is one of the simplest and most effective study to understanding role climate change in recent scenario. A number biotic abiotic drivers controlled timing duration various phenophases same or different species. Temperature, rainfall photoperiod are key which adversely affect phenology woody plant. The sites were conductedat 413 2345m elevation Nainital forest division Kumaun Himalaya. phenological carried out onShores robusta, Mallotus philippinensis, Pinus roxburghii, Myrica esculenta,Quercus leucotrichophora Rhododendron arboreum. observations made at 15 days interval for low activity period weekly periods high activity. Phenological records four phenophases, viz., leafing, leaf drop, flowering seed fall.The fall S. robusta started from March 2nd week was complete by end April. In M. philippinensis fruiting commenced beginning December 3rd esculenta male flowers appear August October end.In R. arboreum dispersal February all capsules had opened mid-March. It apparent present that events species controlled/shifted due climatic irregularities temperaturerise these phenomena showed worldwide. Microclimatic condition alsoresponsible controlling/shifting patterns