地理学报 ›› 2008, Vol. 63 ›› Issue (11): 1169-1178.doi: 10.11821/xb200811006

• 生态研究 • 上一篇    下一篇

中国中温带东部生态地理区划的土壤指标选择

刘晔1,2, 吴绍洪1, 郑度1, 戴尔阜1   

  1. 1. 中国科学院地理科学与资源研究所, 北京100101;
    2. 中国科学院研究生院, 北京100039
  • 收稿日期:2008-04-27 修回日期:2008-09-22 出版日期:2008-11-25 发布日期:2008-11-25
  • 通讯作者: 吴绍洪(1961-), 男, 研究员, 从事资源环境和综合地域格局研究。E-mail: wush@igsnrr.ac.cn
  • 作者简介:刘晔(1980-), 女, 辽宁盘锦人, 博士。中国地理学会会员。从事自然地理研究。E-mail: liuy.05b@igsnrr.ac.cn
  • 基金资助:

    中国科学院地理科学与资源研究所创新三期领域前沿课题(066U0106SZ)

Soil Indicators of Eco-geographical Regionalization in Mid-temperate Zone of Eastern China

LIU Ye1,2, WU Shaohong1, ZHENG Du1, DAI Erfu1   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2008-04-27 Revised:2008-09-22 Online:2008-11-25 Published:2008-11-25
  • Supported by:

    Project Program of Institute of Geographic Sciences and Natural Resources Research, CAS, No.066U0106SZ

摘要:

中国生态地理区域系统是我国区域系统研究定量化、系统化、动态性发展的重要成果。 为深入探讨其土壤指标体系建设问题, 以《中国土种志》和省级土壤资料中的剖面点数据为 基础, 采用主成分分析与判别分析相结合的方法, 以中温带东部地区为例, 探讨适合进行中 温带东部地区生态地理区域系统划分的土壤指标; 在此基础上对代表中温带东部地区生态地理区域特征的土壤类型进行聚类分析。结果表明: A 层有机质含量、阳离子交换量、pH 值、 粘粒含量和土壤容重等5 项指标在中温带东部的生态地理区域划分中作为土壤指标较为合适; 运用回归克里格方法, 得到5 项土壤指标的空间分布数据库; 与区划中土壤类型和单项土壤区划相比, 简洁量化的土壤指标更适宜系统的表述中温带东部的生态地理区域特点。

关键词: 生态地理区域系统, 土壤指标, 东北中温带

Abstract:

Eco-geographical region system is an important result of China's regionalizational development quantitatively, systematically and dynamically. In order to probe into the topic thoroughly, based on the data from the second China's national soil survey and the provincial soil resource information, by principal analysis and discriminant analysis, this paper discusses the appropriate soil indicators as the complement of eco-geographical region indicator systems and the relationship between these soil indicators and soil types in regionalization. The results show that five soil indicators are used in eco-geographical regionalization in mid-temperate zone of eastern China, which are the content of organic matter, cation exchange content, pH, clay capacity and soil bulk density in topsoil. With a regression-kriging approach, the maps of soil indicators in mid-temperate zone of eastern China are compiled with a resolution of 1 km in every grid and the indicative meaning of these soil indicators is discussed. By a cluster analysis, it is proved that these soil indicators are better than the soil types and soil regionalization in delineating eco-regionalization zones.

Key words: eco-geographical zone, soil indicators, mid-temperate zone of eastern China