Effects of reclamation on the shift of wetland soil iron
Farmlands reclaimed from natural wetland with different cultivation periods in Sanjing Plain, northeast China, were sampled to analysis the change of soil iron. The results showed that iron is the important soil constituent responding to environmental change sensitively, and its quality and quantity are influenced by reclamation significantly. The total iron (Fet), free iron (Fed), active iron (Feo), and complex iron (Fep) distribution, for example, is significantly different between different cultivation periods, especially for the upper tillage layer (0-10 cm and 10-20cm). Fet of layer 1 over that of layer 2 changed as an exponential decay curve (Y=0.95152 + 0.27247exp -1.01493 X, R2=0.86) after wetland reclamation. This finding conforms that iron can be used to rebuild the past wetland soil environment.
iron wetland soil reclamation Sanjiang Plain
Yuan-chun Zou Xian-guo Lu Ming Jiang Yuan-chun Zou
Key laboratory of wetland Ecology and Environment Northeast Institute of Geography and Agricultural Graduate School of Chinese Academy of Sciences Beijing, China
国际会议
上海
英文
3363-3366
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）