Abstract:Seasonal dynamics of leaf and stem biomass, as well as N, P content and N, P storage were determined in Global Environment Fund (GEF) program site, Hangzhou Bay Wetlands. With the growth of Phragmites australis, leaf and aboveground biomass increased firstly and reached the maximum value in September, then decreased. While stem biomass increased during the whole growth season. It showed higher N, P concentrations at the early stage (April~May) because of small biomass, then decreased greatly with the expanding of leaf when going into fast growing period (June~July), and increased as the leaf growth became stable (August~September), finally, decreased again with the leaf becoming senescence. But N, P content of the stem decreased gradually in whole growth period. There was a good relationship between N, P storage and biomass, and highest storage was found for leaf in August with (10.28±3.88) and (0.53±0.21)g/m2, and for stem and aboveground biomass in September, the values were (7.33±2.22), (0.57±0.04) and (16.48±1.07), (1.01±0.10)g/m2, respectively.
吴统贵, 吴明, 虞木奎, 萧江华. 杭州湾滨海湿地芦苇生物量及N、P储量动态变化[J]. 中国环境科学, 2010, 30(10): 1408-1412.
WU Tong-Gui, WU Ming, YU Mu-Kui, XIAO Jiang-Hua. Dynamics of biomass and N, P storage of Phragmites australis in Hangzhou Bay Wetlands. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(10): 1408-1412.