福州市表层土壤农业生态环境质量评价
Assessments of agricultural eco-environmental quality of topsoils in Fuzhou City
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摘要: 提要：本文用地球化学指标和分级聚类模型中的积分值法，选取了N、P、K2O等16个指标对福州市表层土壤的农业生态环境质量进行了初步的评价分类。共划分为5个级别农业生态环境区。其中一般生态环境区面积最大，占全部面积58%。优良与良好生态环境区所占面积相对较小，两者合计面积同极差生态环境区面积相当，约占3%。各环境区多数富钾元素，贫中量、微量元素。并根据各个生态环境区的特点，对福州市农业规划与布局提出了建议。Abstract: Abstract：Geochemical indices and the method of integral values in the hierarchical cluster model are used and 16 indices such as N, P and K2O are chosen to carry out a preliminary classification of the agricultural eco-environmental quality of topsoils in Fuzhou. Five ranks of agricultural eco-environment districts are distinguished. Among them, the general eco-environmental district is largest, accounting for 58% of the total area. The excellent and good eco-environmental districts are relatively small and the area of the two districts is equivalent to the very poor eco-environmental district, accounting for~3%. Most eco-environmental districts are rich in potassium and poor in trace elements and minor elements. According to the characteristic of various eco-environmental districts, the authors put forward suggestions of the overall agricultural planning and layout in Fuzhou.
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Keywords:
- soil /
- eco-environment /
- agriculture /
- Fuzhou City
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