乡镇级耕地质量综合评价及其时空演变分析  

Comprehensive Evaluation and Spatio-temporal Variation Analysis of Cultivated Land Quality at Town Scale

作　　者：秦元伟[1] 赵庚星[1] 董超[1] 唐秀美[2,3] 许国臣 韩吉光 

机构地区：[1]山东农业大学资源与环境学院,山东泰安271018 [2]中国科学院地理科学与资源研究所,北京100101 [3]中国科学院研究生院,北京100049 [4]广饶县丁庄镇人民政府,山东东营257300

出　　处：《自然资源学报》2010年第3期454-464,共11页Journal of Natural Resources

基　　金：国家级星火计划重点项目(2007EA740002);科技部"十一五"科技支撑(2006BAD10A10);863计划项目(2008AA10Z203)

摘　　要：以山东广饶县丁庄镇为例,探索乡镇尺度耕地质量评价的体系与方法,以便更好地指导农业生产。在系统分析耕地自然环境条件、土壤理化性质、农业基础设施的基础上,充分考虑农户对耕地质量的影响并构建指标体系,以模糊评判法综合评价了1979年、2005年和2007年的耕地质量,并在此基础上分析了其时空变化特征。结果表明:丁庄镇耕地质量不断提高,呈现出明显的时空演变规律。一、二级地所占耕地面积从1979年的0.060%,增加到2005年的91.42%和2007年的98.62%,耕地质量稳步提高;耕地离行政中心、河流越远,离渤海越近,其质量降低,东北部近海地区和镇政府驻地附近地区耕地质量增幅明显高于其它地区。研究发现,作物平均产量与耕地质量之间存在极显著的线性关系。该研究丰富了乡镇尺度耕地质量评价的方法体系,对乡镇耕地质量评价及其耕地资源高效、可持续利用有积极指导意义。Taking Dingzhuang Town,Guangrang County of Shandong Province as a case,the system and method of cultivated land evaluation at town scale were explored in order to serve agricultural production better than before.Basing on the analysis of environmental conditions of cultivated land,soil physical and chemical properties and agricultural infrastructure,indexes system was established with sufficient consideration of farmers＇ influence on cultivated land quality which was estimated by fuzzy discrimination method in 1979,2005 and 2007,and then their spatial and temporal variation characteristics were analyzed.The results show that cultivated land quality of Dingzhuang Town improves continuously and presents obvious spatio-temporal variation rules.The area of the first and second grades is 0.060% of the total cultivated land area in 1979,which increases to 91.42% and 98.62% in 2005 and 2007,separately,and the quality of cultivated land improves steadily.The quality of cultivated land decreases which is located far from administration center and rivers or nears the Bohai Sea,and the increase amplitude of cultivated land that nears the Bohai Sea in the northeast and around the administration center is higher than other area.Average yield of crops has extremely significant linear relationship with cultivated land quality.This study enriches the system and methods of cultivated land quality evaluation and has significance to cultivated land quality evaluation and effective and sustainable use of land resource at town scale.

关 键 词：乡镇级 综合评价 农户行为 

分 类 号：F323.211[经济管理—产业经济]