干旱区生态环境知识资源中心(Arid): RS与GIS支持下近50a海南岛西部土地沙漠化时空演变过程研究

Arid

	RS与GIS支持下近50a海南岛西部土地沙漠化时空演变过程研究
其他题名	Spatio-temporal Changes of Sandy Desertification in Recent 50 Years in Western Hainan Island Based on RS and GIS
	郑影华 1; 李森 2; 王兮之 2; 李会川 3; 高尚玉 1
ISSN	1000-694X
出版年	2009
卷号	29 期号:1 页码:56-62,后插4
中文摘要	海南岛西部是我国惟一的热带稀树干草原沙漠化地区,选取5期遥感数据,采用室内解译和野外检验修正的方法,获得海南岛西部不同时期土地沙漠化数据库.结果分析表明,海南岛西部土地沙漠化在时间上经历了快速发展-初步逆转-全面逆转-波动反复的变化过程;在空间上由沿岸带向昌化、莺歌海两重心收缩、逆转;同时,其发展/逆转过程以沙漠化土地与林地、耕地相互转化为主,伴随着沙漠化土地内部复杂程度间转化.总之,总体逆转、局部反复波动是近50 a海南岛西部土地沙漠化时空演变的基本趋势.
英文摘要	Western Hainan Island is the only savanna region experiencing desertification in China.In this paper, aerial and satellite data and methods include RS interpretation and GIS analysis are used to obtain the e-valuation data of land desertification in western Hainan Island in five phases between the late 1950s and the early 2000s.The results suggest that the area of desertification in western Hainan Island has experienced a fluctuating process of four phases in order, which are rapid development, preliminary reversal, comprehensive reversal, and rebounding on the floor; the law of spatial variation is that the progress of desertification takes place mainly in the delta of downstream of Changhua River and the lagoon plains in Yinggehai, and desertification area grows shrinkingly and reversely gradually from coastline; the progress of development and reversion in desertification principally consists of the transformation between woodland, cultivated and de-sertified land, coupled with complicated transformation among desertification lands.In conclusion, the spatial and temporal trend of desertification in Hainan Island is globally reverse but partially developing.
中文关键词	海南岛西部 ; 土地沙漠化 ; 时空演变
英文关键词	RS GIS western Hainan Island land desertification spatio-temporal change RS and GIS
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3545887
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224528
作者单位	1.北京师范大学资源学院, 北京 100875, 中国; 2.佛山大学资源与环境科学研究所, 佛山, 广东 528000, 中国; 3.佛山市国土资源局顺德分局, 佛山, 广东 528300, 中国
推荐引用方式 GB/T 7714	郑影华,李森,王兮之,等. RS与GIS支持下近50a海南岛西部土地沙漠化时空演变过程研究[J]. 北京师范大学,2009,29(1):56-62,后插4.
APA	郑影华,李森,王兮之,李会川,&高尚玉.(2009).RS与GIS支持下近50a海南岛西部土地沙漠化时空演变过程研究.,29(1),56-62,后插4.
MLA	郑影华,et al."RS与GIS支持下近50a海南岛西部土地沙漠化时空演变过程研究".29.1(2009):56-62,后插4.