摘要:
借助GPS、GIS技术进行荔城区耕地土壤环境质量评价,结果表明,荔城区耕地土壤总体环境质量较高,但局部耕地污染较严重。环境质量处于尚清洁以上的耕地占85.71%,轻、中和重度污染耕地分别占13.26%、0.13%和0.89%,平原区耕地土壤受污染面积比例较高。全区受污染的耕地利用类型主要是水田,占污染耕地总面积的78.72%;环境质量处于清洁水平的土壤类型主要有灰埭田、黄泥砂田、赤砂土、灰泥田和红泥土,而灰埭田、咸砂泥土和赤砂土的污染相对较为严重。在此基础上,提出了相应的耕地环境污染防治对策。
关键词:
-
GIS /
-
耕地 /
-
环境质量 /
-
评价 /
-
荔城区
Abstract:
The environmental qualities of cultivating soils in Licheng District were evaluated by the technologies of GPS and GIS. The results showed that the overall environmental qualities of cultivating soils in Licheng District were much higher, but part soils have been seriously polluted. The areas of unpolluted cultivating soils were 85.71% of the total soils in Licheng, and those which were lightly, medially and seriously polluted accounted for 13.26%, 0.13% and 0.89% of the total respectively. The areas of polluted cultivating soils in plain were much larger than those in other area. The main type of polluted cultivating soil was paddy field. The areas of polluted paddy field were 78.72% of total polluted cultivating soils. The unpolluted soil were gray salt paddy soil, yellow mud sandy paddy soil,lateritic sandy soil, gray mud paddy soil and red mud soil, and those which were much seriously polluted were gray salt paddy soil, salt sandy mud soil and lateritic area sandy soil. The preventing and treating measures of environmental pollution in cultivating soils were suggested based on the evaluating results of environmental quality of cultivated soils in Licheng District.
点击查看大图
下载:
