地理科学 ›› 2019, Vol. 39 ›› Issue (11): 1830-1840.doi: 10.13249/j.cnki.sgs.2019.11.018

• • 上一篇    

贵州不同规模等级坝子空间分布特征研究

李阳兵1, 陈会1, 罗光杰2   

  1. 1.贵州师范大学地理与环境科学学院,贵州 贵阳 550001
    2.贵州师范学院贵州省流域地理国情监测重点实验室,贵州 贵阳 550018
  • 收稿日期:2018-12-08 修回日期:2019-03-06 出版日期:2019-11-10 发布日期:2020-01-09
  • 作者简介:李阳兵(1968-),男,重庆潼南人,博士,教授,主要从事土地利用变化研究。E-mail: li-yapin@sohu.com
  • 基金资助:
    国家自然科学基金项目(41661020);贵州省科技计划项目资助(黔科合平台人才[2017]5726号)

Spatial Distribution of Different Scale Flatland in Guizhou Province, China

Li Yangbing1, Chen Hui1, Luo Guangjie2   

  1. 1.School of Geography and Environmental Science,Guizhou Normal University,Guiyang 550001, Guizhou, China
    2.Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed, Guizhou Normal University, Guiyang 550018, Guizhou, China
  • Received:2018-12-08 Revised:2019-03-06 Online:2019-11-10 Published:2020-01-09
  • Supported by:
    National Natural Science Foundation of China(41661020);Science and Technology Planning Project of Guizhou Province(黔科合平台人才[2017]5726号)

摘要:

以1∶5万地形图和高清遥感影像为数据源,系统研究了贵州省面积在1 hm 2以上坝子的空间分布规律。研究发现: 贵州省1 hm 2以上的坝子,仅占贵州省国土面积的3.99%,低于山间坝子占全省总面积7.51%的传统认识;以10~20 hm 2的坝子个数占比最高,随坝子面积增加,坝子个数占比也逐渐降低; 贵州坝子集中于贵州省中部,沿东北到西南一线; 贵州坝子体系等级结构较松散,相互之间等级规模差异存在差异。

关键词: 坝子, 规模等级, 贵州省

Abstract:

Due to the special topography, geomorphology and geological characteristics, there is a land resource characteristic with obvious more mountains and less flatlands in Guizhou Province. It is of important significance for the sustainable utilization of land resources and the land use transformation layout to reveal systematically the quantity characteristics and spatial distribution pattern of different size flatland in Guizhou Province. This paper aims to investigate the quantity structure and spatial distribution characteristics of different scale flatlands in Guizhou Province. The high-resolution ALOS remote sensing images (with a spatial resolution of 10 m and 2.5 m) in 2010 and the topographic map (1∶50 000) are chosen as main data sources to study systematically the spatial distribution of flatlands with area of ≥1 hm 2 in Guizhou Province. The results show that the total area of flatland with an area of ≥1 hm 2 accounts for only 3.99% of the total land area of Guizhou Province, lowering than the traditional understanding that the total area of flatlands distributed in mountains accounts for 7.51% of the total area of Guizhou Province. The number of faltland with area in 10-20 hm 2is the highest among all flatlands. With the increase of flatland area, the proportion of number of corresponding flatland gradually also reduces. The flatlands are concentrated in the central part of Guizhou Province, along the northeast to the southwest. The hierarchical structure of flatland systems in Guizhou Province is relatively loose, with a great difference among different grade and scale flatlands. Each grade of flatland system presents a cluster distribution patterns. The research results can provide reference for the optimal utilization of land resources in Guizhou Province.

Key words: flatlands, scale grade, Guizhou Province

中图分类号: 

  • F301.2