Seasonal dynamics of the litter fall production of evergreen broadleaf forest and its relationships with meteorological factors at Tiantong of Zhejiang province
In order to explore evergreen broad-leaved forest litter content change rule and influence factors in Zhejiang province, this paper based on the position research of evergreen broadleaf forest for two years (2012—2013) at Tiantong mountain of Zhejiang province, litter fall production of the stand were investigated. The results show that: 1) the yield of litter respectively was 1 005.68 g/m2 and 773.48 g/m2 in two years. The annual litter of forest was 889.58 g/m2. To every components in two years, the average value of the production was ordered from large to small: leaf> branch> debris> bark> seed/fruit, in which leaf dominated (in 58.88%). 2) The seasonal variation of the yield of the litter in two years showed irregular variation trend and three peaks. The peak values were found in May and August, respectively. There were also differences in the peak months of the components. 3) Production of the litter was influenced by both temperature and maximum precipitation, and the influence of temperature is far greater than the maximum precipitation. Different litter fall components were controlled by different factors. Total production of litter, production of debris litter and production of leaf litter amount were influenced by temperature and it’s positively correlated with the average temperature, maximum temperature, and minimum temperature; production of bark litter was influenced by both average temperature and minimum temperature; production of branch litter fall was influenced by minimum temperature; production of flowers litter was influenced by temperature (average temperature, maximum temperature, minimum temperature) and maximum precipitation; production of seed/fruit litter only was influenced by the maximum precipitation.
NETL
NSTL
万方数据
维普
