Abstract：To examine the divergence response of earlywood (EW), latewood (LW) width indicators of Pinus massoniana to climate factors and to determine what effects of radial growth of PM will be affected in different subtropical regions in the context of global climate change, we selected five study areas with typical spatial representations which are located in eastern, western, central, southern and northern areas of PM distribution approximate range respectively.The dendrochronologies series of EW and LW width were established in each area to analyze the correlation between the three types of ring width indicators chronologies and local climatic variables.The results showed that (1) The mean sensitivities of EW and LW width chronologies in all regions were higher.Most of significant correlations between both two types of chronologies and the climatic factors in each area were highly coincident.(2) Earlywood and latewood chronologies are very similar in all areas.However, the sensitivity of EW chronologies are more sensitive to climate factors.(3)The dendroclimatical relationships of Pinus massoniana have some differences and connections in different areas.In the early stage of growing season, the increase of temperature was helpful to the radial growth of Pinus massoniana in the areas with ample water.But in the northern area where water was relative deficient, the temperature increasing would be negative to the radial growth of Pinus massoniana.(4)Without distinguishing the previous year or the current year, summer precipitation has a restriction on the radial growth of Pinus massoniana in five sample areas, and autumn and winter precipitation has a favorable effect on the radial growth of Pinus massoniana.

Abstract：Based on the measured data of meteorological and wind wave at different stations in Chaohu Lake, the characteristics of wind wave were analyzed in detail.During the observation period of different stations, the frequency of the significant wave height over 0.4 m was between 2.22% and 9.78%.The average significant wave height of Chaohu Lake during the observation period was about 0.11 m.The average period of wind wave in Chaohu Lake with an average of 2.18 s ranged from 1.45 s to 3.33 s.The upper zero-cross period of wind wave with an average of 2.13 s ranged from 1.37 s to 3.26 s.The peak period with an average of 2.30 s ranged from 1.01 s to 4.41 s.There were significant linear correlation between the peak period and the average wave period or the upper zero-cross period, and the correlation coefficients were 0.74 and 0.68, respectively.The wave energy of wind wave in Chaohu Lake was mainly concentrated in the frequency range of 0.2-0.6 Hz.That is, the energy was mainly distributed in the frequency range of 0.5 fp-1.5 fp.The spectrum was obviously different from the commonly used JONSWAP spectrum and PM spectrum.