摘要
采用马尔科夫模型与地类转移矩阵合成地学信息图谱单元的方法对湖北江汉平原1980—2010年耕地资源空间格局演变进行图谱分析,并对研究区范围内县域耕地动态度区域差异进行测度。结果表明:①1980—1990年耕地主要向水域转换,1990—2000年耕地变化主要特征为转入,耕地新增来源主要为水域,2000—2010年耕地与建设用地之间的转换占据主导;②30年间,耕地动态度呈现"东升西降"的态势,江汉平原东部区域耕地动态度不断提高,西部区域耕地动态度不断降低。研究认为,江汉平原仍旧是以耕地—水域为主的生态景观系统,科学地应对它们之间的关系对于整个区域生态保护起着至关重要的作用。
The research is conducted based on the geographic information tupu analytic method and Markov analysis and transfer matrices. Using this method, the paper has made the tupu analysis of evolution of spatial pattern of cultivated land resources in Jianghan plain between 1980 and 2010.With the support of tupu analysis method, this paper also has measured the regional difference of dynamic of cultivated land with the research area counties. The result shows that, during 1980 to 1990, the led type of regional.land transfer was conversion of arable land to water. On the contrary, during1990 and 2000, the main characteristic of cultivated land change was that the main added cultivated land resources were from water. During i000 to 2010 the led type of regional land transfer was conversion of arable land and construction land. During the 30 years period, the dynamic of cultivated land, in the eastern research area had increased obviously. While in the western research area, the dynamics of cultivated land had been decreased gradually. Studies suggest that Jianghan plain is an eco-landscape system which dominated by cultivated land and water. So, scientific response to their relationships plays a vital role for the whole region ecological protection.
出处
《经济地理》
CSSCI
北大核心
2013年第11期130-135,共6页
Economic Geography
基金
国家自然科学基金项目(41271534)
国土资源部公益性行业科研专项(201011006)
湖北省自然科学基金项目(2011CDB157)
关键词
耕地
空间格局
地学信息图谱
湖北江汉平原
cultivated landi spatial pattern
geographic information tupu
Jianghan Plain in Hubei Province
