基于GIS技术的区域无公害蔬菜地适宜性评价  

Local Farmland Suitability Assessment for Harmless Vegetable Production Based on GIS

作　　者：韦红[1] 邢世和[1] 陈燕婷[1] 蔡开地 

机构地区：[1]福建农林大学资源与环境学院,350002 [2]荔城区农业局土肥站,351100

出　　处：《中国科技信息》2005年第19A期13-14,共2页China Science and Technology Information

摘　　要：以荔城区基本农田保护区为评价对象,根据蔬菜正常生长对土壤地力条件的一般要求以及无公害蔬菜生产对环境条件的特殊要求,选取土壤地学条件、理化性状、剖面状况、农田基本建设和环境质量状况等5个方面共20个因子,在实地调查采样和测试分析基础上,借助GIS和动态聚类分析模型评价区域耕地单元对无公害蔬菜生产的适宜数量、质量及其分布。评价结果表明,全区适宜于发展无公害蔬菜生产的耕地面积占基本农田保护区耕地面积的81.68%,耕地土壤环境质量已令人担忧,应引起地方各级政府的高度重视。Taking the protective zone of basic farmland in Lichengqu as assessment objects,20 factors, representing aspects such as soil geoconditions, natural and chemical properties, profile status, farmland capital construction, environment quality conditions, were chosen according to both the general demands on soil feitility for the normal growth of vegetables and the specific demands on environment for harmless vegetable production. On the basis of field survey and sanding and laboratory analysis, GIS technic and dynamic clustering analysis model were adopted to assess suitable quantity, quality and distribution of farmland units for harmless vegetable production. The result indicates that 81.68% of basic farmland of protective zone is still suit for harmless vegetable production in Lichengqu, the soil environment quality gives some cause for anxiety so great attention should be paid now by all levels of local government.

关 键 词：无公害蔬菜 适宜性评价 GIS 荔城区 

分 类 号：S63[农业科学—蔬菜学]