文献类型：期刊文献

中文题名：三峡库区消落带土壤化学性质变化

英文题名：Changes of the Soil Chemical Properties in Hydro-fluctuation Belt of Three Gorges Reservoir

作者：沈雅飞[1,2] 王娜[1,2] 刘泽彬[1,2] 王晓荣[1,2] 肖文发[1,2] 程瑞梅[1,2]

第一作者：沈雅飞

机构：[1]中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,北京100091;[2]南京林业大学南方现代林业协同创新中心,南京210037

年份：2016

卷号：30

期号：3

起止页码：190-195

中文期刊名：水土保持学报

外文期刊名：Journal of Soil and Water Conservation

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家“十二五”科技支撑项目(2015BAD07B04);国家“十二五”林业科技支撑项目(2011BAD38BO4)

语种：中文

中文关键词：消落带;土壤化学性质;三峡库区

外文关键词：hydro-fluctuation belt; soil chemical properties; Three Gorges Reservoir

分类号：X153

摘要：为研究三峡库区消落带水淹和未水淹区域土壤化学性质的差异,以及探讨水位涨落对消落带土壤化学性质影响,试验分别于2008年、2009年、2013年的9月,对消落带水淹和未水淹区域土壤（0-5,5-10,10-15cm）的养分含量和pH值进行测定。结果表明：（1）2008年、2009年、2013年消落带未水淹区域各层土壤的速效氮、速效磷、速效钾和有机质含量均大于水淹区域,2013年其含量差异的幅度较大,依次为6.06%-17.01%,40.55%-50.23%,26.90%-46.89%和14.64%-45.51%;较未水淹区域,水淹区域各层土壤的pH值呈缓慢上升趋势。（2）受不同水位涨落周年的影响,各层土壤速效氮、速效磷、速效钾、全氮、全磷、有机质含量均表现为：经历0次水位涨落区域〉1次水位涨落区域〉5次水位涨落区域,而土壤pH值变化趋势与其相反;受水位涨落影响后,土壤的全钾含量表现出一定程度的积累。研究表明,水位涨落可导致消落带土壤速效氮、速效磷、速效钾、全氮、全磷、有机质含量的大量流失和pH的显著增高。
The study aimed to explore the difference between submerged area and unsubmerged area on the chemical properties of soil and also determine the effect of water level fluctuating on the chemical properties of soil in the hydro-fluctuation belt of Three Gorges Reservoir. Soil samples （0 5 cm, 5 10 cm and 10-15 cm） were collected in September of 2008, 2009 and 2013 respectively from both submerged and unsubmerged areas in the hydro-fluctuation belt. Soil properties including nutrient content and pH value were tested. Results showed that （1）The soils in the unsubmerged area had higher available nitrogen, available phosphor- us, available potassium and organic contents than those in the submerged areas. Especially, in 2013, those had the greatest variations compared to those in the other years, with the respective value of 6.06% -17.01%, 40.55%-50. 23%, 26.90-46.89% and 14.64%-45.51%. Compared with unsubmerged area, soil pH value in the unsubmerged area had an increasing trend to be neutral. （2） Affected by different water level fluctuation anniversary, soil available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus and organic matter content decreased as follows： in the areas those had never subjected to the fluctuation〉those once〉5 times while the pH value presented opposite trend to this. However, the total potassium had a degree of accumulation after water level fluctuation. All the findings indicated that the avail- able nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus and organic matter content decreased while the pH value increased significantly after water level fluctuating.