基于模糊数学法的河南黄泛区土壤质量综合评价——以开封和周口为例  

Soil Quality Evaluation in Flooded Area of the Yellow River in Henan Province Based on Fuzzy Mathematics:A Case Study in Kaifeng and Zhoukou City,Henan,China

作　　者：卢翠玲 张俊华[1,2,3] 丁亚鹏[1,2] 熊小波[1,2] 刘玉寒 LU Cuiling;ZHANG Junhua;DING Yapeng;XIONG Xiaobo;LIU Yuhan(Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions,Henan Kaifeng 475004,China;Henan Universit;2.College of Environment and Plannin;3.Key Research Insitute of Yellow River Civilization and Sustainable ＆ Collaborative Innovation Center on Yellow River Civilization of Henan Province,Henan Kaifeng 475004,China)

机构地区：[1]黄河中下游数字地理技术教育部重点实验室,河南开封475004 [2]河南大学环境与规划学院,河南开封475004 [3]河南大学黄河文明传承与现代文明建设河南省协同创新中心,河南开封475004

出　　处：《河南大学学报（自然科学版）》2018年第6期660-668,共9页Journal of Henan University:Natural Science

基　　金：国家自然科学基金项目(41101088;U1404401);河南大学新兴交叉与特色学科培育项目(XXJC20140003);河南省自然科学基金(182300410129)

摘　　要：土壤质量是反映土壤中物质含量水平和维持生物生产能力的综合度量指标,可为土地的持续利用和区域农业发展提供依据.以河南豫东黄泛区土壤为例,通过野外样品采集和室内分析,采用模糊数学法,对黄泛区土壤质量进行综合评价.结果显示:研究区表层0～20cm土壤氮含量处于较低水平,磷及有机质含量良好,在空间上土壤养分含量变异较强;与土壤表层相比,深层20～40cm土壤养分含量降低,变幅增强;0～20cm土层的土壤质量综合性指数(IFI)介于0.17～0.74之间,其平均值为0.42,土壤质量总体处于中等水平;20～40cm土层的IFI数值介于0.11～0.53之间,其平均值为0.27,土壤质量总体处于低水平;在两个土层上土壤质量均表现为周口高于开封,即随着黄泛区的南移,土壤质量升高,这可能与黄泛区的形成历史和后期耕作有关.研究区内土壤质量处于中等水平,具有一定的提升空间,但在空间上存在一定的差异性.Soil quality is a comprehensive measurement index that reflects the level of substance in the soil and the capacity of maintaining biological production, which can provide evidence for land sustainable utilization and agricultural development in the region. Taking East Henan flooded area of Yellow River soil as an example, through conducting field and laboratory experiment, the Fuzzy Mathematics method was used to comprehensively evaluate soil quality. The results show that the nitrogen content of surface soil is at a low level in the study area, while phosphorus and organic matter content are abundant. At the same time the variation of soil fertility in space is large. Compared with the surface soil, soil fertility is depressed and amplitude is enhanced in 20-40 cm. The integrated fertility index （IFI） in the Yellow River flood area is in the range from 0.17 to 0.74, and the average value is 0.42, the overall soil quality at a medium level in 0-20 cm. The IFI value of 20-40 cm soil layer is in the range from 0.11 to 0.53, with the average value of 0.27, and the soil quality is generally low. In both soil layers, the soil quality is higher in Zhoukou than in Kaifeng, with the southward movement of Yellow River flood area, soil quality is gradually increasing. There is difference between the soil qualities in the two area, which is related to the formation of the Yellow River and human farming habits. It is found that the soil quality in the study area is at a moderate level, with a certain space improved, hut there is a degree difference in the space.

关 键 词：黄泛区 模糊数学 土壤质量 综合评价 

分 类 号：X171.3[环境科学与工程—环境科学]