Research

We describe the development of a tree-ring chronology network in Nepal that is suitable for reconstructing temperature-related climate forcing over the past few hundred years. The network is composed of 32 tree-ring chronologies and is represented by five indigenous tree species. An empirical orthogonal function analysis of the chronologies over the common interval 1796–92 indicates the existence of coherent large-scale signals among the tree-ring chronologies that are hypothesized to reflect, in part, broad-scale climate forcing related to temperatures.

Biodiversity is the combination of all life-forms at genetic, species, and ecosystem level. Nepal has variation in biodiversity due to variation in geography, altitudinal range, and climate. But global climate is changing naturally, affecting various aspects of life. Long-term impacts of changes in climatic patterns have impacts on the forest resources. Decrease in snowfall and snow cover in the Himalayan region affects the Nomad groups to feed their livestock.