基于GIS技术的灰色关联度法土壤肥力综合评价  

Comprehensive evaluation of soil fertility based on GIS technology and grey correlative degree method

作　　者：韩春建[1,2] 梁朝信 吴克宁[4] 吕巧灵[2] 付巧玲[5] 关小克[2] 李玲[2] 

机构地区：[1]河南省煤田地质局资源环境调查中心,郑州450003 [2]河南农业大学资源与环境学院,郑州450002 [3]郑州旅游职业学院旅游管理系,郑州450009 [4]中国地质大学土地科学技术学院,北京100083 [5]河南省地质调查院,郑州450007

出　　处：《农业工程学报》2008年第S1期53-56,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金资助项目(40471060)

摘　　要：为了对郑州市郊区绿色蔬菜基地土壤肥力进行综合评价,选取有机质、土壤质地、CEC、全氮、速效磷、速效钾作为评价因子,通过野外采样、室内分析,按照绿色蔬菜基地相关标准,采用GIS和灰色关联模型进行土壤肥力综合评价。研究结果表明,以评价数量显示,郑州市郊区绿色蔬菜基地土壤肥力属于极差和差的没有;肥力为良的最多,有56个;其次为肥力一般,有46个;而优等的很少,只有3个样点达到。空间分布上,土壤肥力为良的分布比较广,主要分布在西北部、东南和西南部,这可能是由于现有菜地、园地等造成人们肥料投入较高,其他主要为含量一般的区域。To evaluate comprehensively the soil fertility in green vegetable bases in the suburbs of Zhengzhou City, organic matter,soil texture,CEC,total nitrogen,available phosphorus and available potassium were selected as the evaluation factors,By collecting samples in the field and analyzing them indoor,according to the standards of green vegetable bases,the GIS and grey correlative model were applied to evaluate comprehensively soil fertility.The soil fertility studying results in the suburbs of Zhengzhou City show that none sample belongs to bad or worst,56 samples belongs to good,,which are the most in all the samples;the number of ordinary soil fertility samples is 46;excellent sample is few,which is only 3.In spatial distribution,distribution with good quality is quite broad,mainly in the northeast,southeast and northwest region.Maybe it is due to the higher fertilizer devotion on these vegetable plots and fields,while others are mainly with ordinary fertilizer.

关 键 词：灰色关联 绿色蔬菜 土壤肥力 综合评价 

分 类 号：S158[农业科学—土壤学]