Effects of Crude Oil Contamination on Soil Physical and Chemical Properties in Momoge Wetland of China  

作　　者：WANG Ying FENG Jiang LIN Qianxin LYU Xianguo WANG Xiaoyu WANG Guoping 

机构地区：[1]Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences [2]Key Laboratory for Wetland Ecology and Vegetation Restoration of National Environmental Protection,Northeast Normal University [3]Department of Oceanography & Coastal Sciences,School of the Coast and Environment,Louisiana State University

出　　处：《Chinese Geographical Science》2013年第6期708-715,共8页中国地理科学（英文版）

基　　金：Under the auspices of National Natural Science Foundation of China(No.31170476);Chinese Academy of Sciences/State Administration of Foreign Experts Affairs International Partnership Program for Creative Research Teams(No.KZZD-EW-TZ-07);Major Program of Science and Technology of Jilin Province(No.20075014);Fundamental Research Funds for the Central Universities of China(No.11GJHZ002)

摘　　要：Large oilfields are often coincidentally located in major river deltas and wetlands,and potentially damage the structure,function and ecosystem service values of wetlands during oil exploration.In the present study,the effects of crude oil contamination during oil exploration on soil physical and chemical properties were investigated in marshes of the Momoge National Nature Reserve in Jilin Province,China.The concentrations of total petroleum hydrocarbons in the marsh soil near the oil wells are significantly higher than those in the adjacent control marsh.Soil water contents in oil-contaminated marshes are negatively correlated with soil temperature and are significantly lower than those in the control area,especially in fall.Crude oil contamination significantly increases the soil pH up to8.0,and reduces available phosphorus concentrations in the soil.The concentrations of total organic carbon are significantly different among sampling sites.Therefore,crude oil contamination could potentially alkalinize marsh soils,adversely affect soil fertility and physical properties,and cause deterioration of the marshes in the Momoge National Nature Reserve.Phyto-remediation by planting Calamagrostis angustifolia has the potential to simultaneously restore and remediate the petroleum hydrocarbon-contaminated wetlands.Crude oil contamination affects the soil physical and chemical properties,so developing an effective restoration program in the Momoge wetland is neccesary.Large oilfields are often coincidentally located in major river deltas and wetlands, and potentially damage the structure, function and ecosystem service values of wetlands during oil exploration. In the present study, the effects of crude oil contamination during oil exploration on soil physical and chemical properties were investigated in marshes of the Momoge National Nature Reserve in Jilin Province, China. The concentrations of total petroleum hydrocarbons in the marsh soil near the oil wells are significantly higher than those in the adjacent control marsh. Soil water contents in oil-contaminated marshes are negatively correlated with soil temperature and are significantly lower than those in the control area, especially in fall. Crude oil contamination significantly increases the soil pH up to 8.0, and reduces available phosphorus concentrations in the soil. The concentrations of total organic carbon are significantly different among sampling sites. Therefore, crude oil contamination could potentially alkalinize marsh soils, adversely affect soil fertility and physical properties, and cause deterioration of the marshes in the Momoge National Nature Reserve. Phyto-remediation by planting Calamagrostis angustifolia has the potential to simultaneously restore and remediate the petroleum hydrocarbon-contaminated wetlands. Crude oil contamination affects the soil physical and chemical properties, so developing an effective restoration program in the Momoge wetland is neccesary.

关 键 词：crude oil contamination marsh soil oilfield in marshes soil physical and chemical properties WETLAND Momoge National Nature Reserve 

分 类 号：X53[环境科学与工程—环境工程]