福州市晋安区与马尾区耕地调查与地力评价

Investigation of cultivated land and evaluation of land fertility in Jin'an and Mawei districts of Fuzhou city

运用GIS技术和综合指数法对福州市晋安区与马尾区耕地土壤进行了地力评价。结果表明,福州市晋安区与马尾区耕地地力水平不高,以三至四等的中产田为主,主要限制因素是干旱;土壤整体偏酸性;CEC低,保肥供肥性较差;土壤矿质养分失衡。利用评价结果提出改良措施,以期为福州市晋安区与马尾区耕地资源的合理利用提供依据。

This paper evaluated the the fertility of cultivated land in Jin＇an and Mawei districts of Fuzhou city by applying GIS technology and comprehensive index method. The result showed that the fertility level of cultivated land was mainly medium with the middle fields from three to four grade. The main limiting factors of land fertility were drought, tending to acidic generally, low CEC, poor fertilizer and mineral nutrients unbalance. The improvement measures were proposed to provide the basis for rational utilization of cultivated land resources in Jin＇an and Mawei districts of Fuzhou city.