地理科学 ›› 2011, Vol. 31 ›› Issue (8): 1012-1018.doi: 10.13249/j.cnki.sgs.2011.08.1012

• 论文 • 上一篇    下一篇

BIO-NORM与EO耕地质量评价方法对比研究

张广星1,3, 于东升1,2,3, 张忠启1,3, 王兴祥1,3, 史学正1,3   

  1. 1. 土壤与农业可持续发展国家重点实验室 中国科学院南京土壤研究所, 江苏 南京 210008;
    2. 南京师范大学地理 科学学院, 江苏 南京 210046;
    3. 中国科学院研究生院, 北京 100039
  • 收稿日期:2010-09-16 修回日期:2010-12-08 出版日期:1997-08-20 发布日期:1997-08-20
  • 通讯作者: 于东升,副研究员。E-mail:dshyu@issas.ac.cn E-mail:于东升, dshyu@issas.ac.cn
  • 基金资助:
    中国科学院知识创新工程项目(KSCX1-YW-09-01&02,KZCX2-YW-Q1-07)、国家重点基础研究发展计划"973"项目(2010CB950702)资助

Cultivated land Quality Evaluation Methods Based on Bio-Norm and EO

ZHANG Guang-xing1,3, YU Dong-sheng1,2,3, ZHANG Zhong-qi1,3, WANG Xing-xiang1,3, SHI Xue-zheng1,3   

  1. 1. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China;
    2. College of Geographical Sciences, Nanjing Normal University, Nanjing, Jiangsu 210046, China;
    3. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-09-16 Revised:2010-12-08 Online:1997-08-20 Published:1997-08-20

摘要: 以江西省余江县为研究区域,利用专家经验法(expert opinion,EO)和新建的Bio-Norm法,分别确定耕地质量评价指标、指标权重和隶属度函数,对研究区水田耕地质量进行评价。两种评价方法的对比分析表明,采用EO法时不同专家组选取的参评指标不尽相同,评价结果具有不稳定性。Bio-Norm法得出的指标权重及确定的隶属度函数临界值,比起EO法更能反映水稻生长的实际要求;耕地质量综合指数(IFI值)与水稻产量回归方程的决定系数(R2)高于EO法,且IFI值与水稻产量各等级区域分布特征更吻合。采用Bio-Norm法评价耕地质量更为科学合理。

Abstract: Quality evaluation of cultivated land is important in the guidance of agricultural production. Whether the evalution method is appropriate or not directly affects the scientificity of evaluation results. Through practical investigation, sample collection, and analysis, a total of 249 surficial paddy soil property data and 95 rice production data were collected in the study area of Yujiang County, Jiangxi Province. Expert opinion and the newly established Bio-Norm method were used to determine indicators, indicators’weight, and their relationship functions respectively, and then to evaluate the quality of paddy field land of the study area. The comparison between Bio-Norm method and EO showed that EO method was unstable, and the indicators selected by Bio-Norm method were more representative than that of EO method. The weights obtained from Bio-Norm method could better accurately reflect the importance of indicators. The relationship functions of Bio-Norm method could better reflect the actual requirements of rice growth. Evaluation results showed that regression coefficient of determination (R2) between cultivated land quality index (IIFI value) obtained from Bio-Norm method and rice yield was far higher than that of EO method, and the distribution of IIFI value obtained from Bio-Norm method and rice yield was more consistent in the region than that of EO method. Therefore, the Bio-Norm method is more scientific and reasonable than the EO method in evaluating the quality of cultivated land.

中图分类号: 

  • F301.21