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Position: Home > Articles > Distribution of Soil Cation Exchange Capacity——A Case Study of Lishui County,Jiangsu Province Soils 2007,39 (3) 443-447

土壤阳离子交换量分布规律的研究——以江苏省溧水县为例

作  者:
李海鹰;姜小三;潘剑君;廖启林;邹松梅;吴新民
单  位:
南京农业大学资源与环境科学学院;江苏省地质调查研究院
关键词:
溧水县;土壤阳离子交换量;分布;规律
摘  要:
对溧水县33个土壤样点的阳离子交换量(CEC)进行了测定,应用地理信息系统软件将CEC点图在同一土壤类型中进行逆距离加权插值,叠加得到CEC空间分布图。溧水县土壤CEC平均值是12.50cmol/kg±3.56cmol/kg;空间分布图中有71.69%面积其土壤处于中等保肥供肥水平(CEC10~20cmol/kg)。在不同的地形中,CEC为5~10cmol/kg的土壤在低山的面积百分比大,占56.21%;CEC为10~20cmol/kg的土壤在平原的面积百分比大,占82.23%;CEC>20cmol/kg的土壤只在平原中出现,占0.30%。秦淮河圩区、石臼湖圩区、低山丘陵区的北区和西南区土壤CEC均在10~20cmol/kg,低山丘陵东区东庐山?马占山?关山?方山一线,土壤CEC为5~10cmol/kg。
译  名:
Distribution of Soil Cation Exchange Capacity——A Case Study of Lishui County,Jiangsu Province
作  者:
LI Hai-ying1,JIANG Xiao-san1,PAN Jian-jun1,LIAO Qi-lin2,ZOU Song-mei2,WU Xin-min2 ( 1 College of Resources and Environmental Science,Nanjing Agricultural University,Nanjing 210095,China; 2 Geological Survey of Jiangsu Province,Nanjing 210018,China )
关键词:
Lishui County,CEC,Distribution,Regularity
摘  要:
A total of 33 soil samples were taken from Lishui County and analyzed,based on which a sample-point CEC map of the county was plotted out and turned into a CEC spatial distribution map through Inverse Distance Weighted interpolation and superposition with the aid of the GIS technology. Results showed that the soil CEC averaged at 12.50 ± 3.56 cmol/kg over the county,and was at 10 ~ 20 cmol/kg in 71.69% of the spatial distribution map,and varied with topography,e.g. in low hill region,about 56.21% of the soil,mainly in the east part,was only 5 ~ 10 cmol/kg in CEC and in plain region,about 82.23% of the soil was 10 ~ 20 cmol/kg in CEC and only 0.30% >20 cmol/kg.

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