湖北农业科学 ›› 2020, Vol. 59 ›› Issue (14): 30-36.doi: 10.14088/j.cnki.issn0439-8114.2020.14.005

• 资源·环境 • 上一篇    下一篇

潜江市耕地格局与景观破碎化研究

许利洋, 买尔哈巴·玉苏甫   

  1. 地理过程分析与模拟湖北省重点实验室/华中师范大学城市与环境科学学院,武汉 430079
  • 收稿日期:2019-11-10 出版日期:2020-07-25 发布日期:2020-09-14
  • 作者简介:许利洋(1993-),女,河南安阳人,在读硕士研究生,研究方向为农业空间格局,(电话)18827349057(电子信箱)18827349057@139.com。

Study on cultivated land pattern and landscape fragmentation in Qianjiang city

XU Li-yang, MARHABA·YUSUFU   

  1. Key Laboratory of Hubei Province for Geographical Process Analysis & Simulation/College of Urban & Environmental Sciences, Central China Normal University, Wuhan 430079,China
  • Received:2019-11-10 Online:2020-07-25 Published:2020-09-14

摘要: 基于2000年和2010年两期GlobeLand 30土地覆盖数据,以湖北省潜江市为研究区,分析潜江市土耕地时空变化特征,并计算该市19个乡镇的耕地斑块面积与破碎度指数,建立耕地面积和破碎度耦合的9种耕地变化模式,分析各乡镇耕地面积、耕地破碎度变化以及两者相联系形成的耕地变化特征。结果表明,2000—2010年,潜江市耕地总面积基本保持稳定,但潜江市内部各乡镇耕地面积变化幅度差异显著,耕地破碎化加剧;潜江市“耕地面积减少伴随着破碎度增加”的耕地变化模式占主导地位,位于城市化发展较快的东北地区,而“耕地面积增加伴随破碎度减少”的乡镇主要分布在农业比较发达的西南地区。潜江市城市建设用地逐渐占用耕地,导致城市边缘耕地面积骤减,耕地内部破碎化趋势严重。

关键词: 耕地变化, 破碎化, 景观格局, 潜江市

Abstract: Based on the land cover data of GlobeLand 30 in 2000 and 2010, taking Qianjiang in Hubei province as the research area,the soil spatial and temporal variation characteristics of cultivated land in Qianjiang is analyzed. And the arable land patch area and the fragmentation index of 19 towns in the city are calculated. The cultivated land area and the fragmentation coupling mode of 9 kinds of cultivated land change are established. The changes in cultivated land, cultivated land fragmentation country towns and the characteristics of both associated with formation of the farmland change are analyzed. The results show that the total cultivated land area of Qianjiang remained stable from 2000 to 2010, but the variation range of the cultivated land area of each town and town within Qianjiang was significant, and the cultivated land fragmentation was intensified. The cultivated land change pattern of “the reduction of cultivated land area with the increase of fragmentation” is dominant in Qianjiang, and it is located in the northeast region where urbanization is developing rapidly. The townships with the pattern of “increase in cultivated land area with reduced fragmentation” are mainly distributed in the southwestern regions where agriculture is relatively developed. The urban construction land gradually occupied the cultivated land in Qianjiang, resulting in a sharp decrease in the area of cultivated land at the edge of the city, and the internal fragmentation trend of the cultivated land is serious.

Key words: cultivated land change, fragmentation, landscape pattern, Qianjiang city

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