【摘要】 以三江平原沼泽湿地生态试验站为研究基地 ,选择典型采样点 ,对排水沟土壤、沼泽土壤、沼泽化草甸土壤 (共有 6个采样点 ,2 8个样品 )进行测试 ,分析土样中主要离子 (HCO3- 、Cl- 、NO3- 、SO4 2 - 、Ca2 +、Mg2 +、K+、Na+)含量、重金属 (铁、锰、锌、铜 )含量、营养元素含量、有机质含量以及土壤pH值 ,研究沼泽排水对沼泽土壤中的化学元素含量的影响。研究结果表明 ,排水使沼泽土壤丧失大量的化学元素更多还原

【Abstract】 The Sanjiang Swamp and Wetland Ecology Test Station was selected as a research base,where 28 soil samples were taken from 6 typical sampling sites(soils at the beginning and the end of the drainage ditch,swamp soil,and swampy meadow soil)for determination of major ions(HCO 3 -,Cl -,NO 3 -,SO 4 2- ,Ca 2+ ,Mg 2+ ,K +,Na +),heavy metals(Fe,Mn,Zn,Cu),nutrient elements and their availability,soil organic matter,and soil pH. On such a basis ,effect of drainage on content of chemical elements in the swamp soil was studied. Results show that drainage makes the swamp soil lose a large quantity of chemical elements.更多还原