Title: Study on Spatial Distribution of Soil Salinization Based on GIS in Tianjin Binhai New Area
Abstract: The distribution of soil salinization was investigated based on GIS and field sampling in Tianjin Binhai New Area.The results showed that soil total salt amount averaged 0.818%,pH averaged 8.43,Cl-and Na+ content was 0.27% and 0.22%,respectively.The soil total salt appeared a strip distribution and increased gradually from the west to the east of Binhai New Area.The statistic analysis calculating soil area of distribution regions based on their different salinity degrees displayed that nonsaline soils were distributed in a small region with 3.18% of total area.The area of moderate saline soils was 107.43 km2,accounting for 6.34% of total soil area.The area of medium saline soils was 173.51 km2,accounting for 10.24% of total soil area.The area of heavily saline soil was 217.36 km2,accounting for 12.82% of total soil area.The area of saline soils(total salt content 0.6%) was 1 142.8 km2,accounted for 67.42% of total area in the terrestrial land of Binhai New Area.Among them,soils with total salt content of 0.6%-1.0%,1.0%-1.5%,1.5% had an area of 388.47,411.82,342.51 km2,accounting for 22.92%,24.30%,20.21% of total area.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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