地理学报 ›› 2001, Vol. 68 ›› Issue (2): 198-205.doi: 10.11821/xb200102008

• 论文 • 上一篇    下一篇

基于GIS的黄河三角洲盐碱地改良分区

关元秀, 刘高焕, 王劲峰   

  1. 中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101
  • 收稿日期:2000-07-20 修回日期:2000-12-17 出版日期:2001-03-15 发布日期:2001-03-15
  • 基金资助:
    中国科学院知识创新项目“黄河三角洲可持续发展信息图谱研究”;国防科工委资源卫星应用示范项目

Regionalization of Salt-affected Land for Amelioration in the Yellow River Delta Based on GIS

GUAN Yuan xiu, LIU Gao huan, WANG Jin feng   

  1. The State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2000-07-20 Revised:2000-12-17 Online:2001-03-15 Published:2001-03-15
  • Supported by:
    “Study of Sustainable Development Information Tupu in the Yellow River Delta”knowledge in novation project of CAS

摘要: 黄河三角洲盐碱地面积超过总面积的 70 %,而盐碱地改良分区是因地制宜、综合治理盐碱地的前提。通过综合运用地理信息系统的各种空间数据分析功能,将黄河三角洲土地盐碱化现状分为 :非盐碱地、轻度盐碱地、中度盐碱地、重度盐碱地、滩涂 5个区,并结合地下水长期观测资料,进行成因分析,建立了黄河三角洲盐碱地改良分区模型。立足土地盐碱化的现状,充分考虑地下水埋深和矿化度,把黄河三角洲盐碱地按改良难易程度分为 :易改良区、较难改良区、难改良区、近期不宜作改良区,并针对不同的盐碱地改良区提出了相应的土壤改良对策。

关键词: 黄河三角洲, 地理信息系统, 盐碱地, 改良分区

Abstract: Soil salinization is the major land degradation problem and has seriously influenced the sustainablal agricultural development. Regionalization of salt affected land is the precondition for effective amelioration. The present saline land situation is obtained by remote sensing image processing. The cause that leads to land salinization is analysized. Especially, the two key factors, ground water depth and mineralization degree that control land salinization, are analysized by using long term observation data. Previously, regionalization of saline soil was done descriptively and artificially. Based on the present saline land situation, ground water depth and ground water mineralization degree, the regionalization of saline land for amelioration in the Yellow River Delta is done quantitatively. Four different saline land amelioration regions are delineated, namely, easy amelioration region, relatively difficult amelioration region, difficult amelioration region and unfavorable amelioration region. Countermeasures for ameliorating saline soils are put forward according to ecological conditions of different saline land regions. This not only greatly improves regionalization speed but also accuracy.

Key words: Geographical Information System, The Yellow River Delta, Salt affected land, Regionalization

中图分类号: 

  • S156