摘要:The impact of hydrologic regime shifts in the Asian Monsoon under changing global climate is significant, since the inten-sity of monsoon directly affects the agricul-tural production of the most densely popu-lated regions in the world. Proxy climate records dating back to the pre-instrumen-tal era are therefore essential for evaluat-ing the roles of natural variability and an-thropogenic impact on the Asian Monsoon system. Tree rings have often been used to reconstruct past climate variations with annual resolution, and extensive networks of tree-ring chronologies have been devel-oped in North America and Europe. Unlike in higher latitudes, relatively few tree-ring chronologies were produced for tropi-cal and subtropical Asia, since the lack of climatic seasonality hinders annual ring formation of most tree species in these regions. However, over the last couple of decades dendrochronologists have found increasing success in the low latitudes of Asia by selecting regions with more pro -nounced temperature or precipitation sea-sonality