基于RS和GIS的鄂尔多斯半日花景观动态变化研究  

STUDY OF THE DYNAMIC CHANGE OF HELIANTHEMUM ORDOSICUM LANDSCAPE USING RS AND GIS

作　　者：韩春荣[1] 刘果厚[1] 韩宝龙 史学刚 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]乌海市林业局,乌海016000

出　　处：《内蒙古农业大学学报（自然科学版）》2010年第2期109-115,共7页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古自治区自然科学基金(20080404zd14);教育部科学技术研究重点项目(209022)

摘　　要：本文以珍稀濒危植物鄂尔多斯半日花(Helianthemum ordosicum)为研究对象,利用其有限的分布以及荒漠植被群落结构比较简单的特点,在遥感(RS)、地理信息系统(GIS)和全球定位系统(GPS)技术支持下,首次界定了鄂尔多斯半日花分布区,并对鄂尔多斯半日花分布区近几年来的景观变化进行了分析,研究了鄂尔多斯半日花不同分布区域群落动态,论述了鄂尔多斯半日花的生存现状。得到的结论如下:(1)鄂尔多斯半日花分布面积为1 123.771km2,生于海拔1 100m^1 600m范围内;(2)鄂尔多斯半日花分布区面积逐渐减小、斑块趋于破碎化。This article take threatened plants Helianthemum ordosicum as object of study,using delimited distribution as well as characteristic of simple desert community structure by the techniques of RS,GIS and GPS,firstly delimited the Helianthemum ordosicum distribution area,studied the landscape variation in recent years at Helianthemum ordosicum distribution area,and discuss fragmentation causes in different areas.Expound its survival present situation initially.The results are as follows：（1） The distribution area of Helianthemum ordosicum is 1 249.064km^2,was born in the elevation 1 100m-1 600m scope;（2）Helianthemum ordosicum distribution area tend to reduction,the patch of this species tend to fragmentation.

关 键 词：RS和GIS 鄂尔多斯半日花 景观动态变化 

分 类 号：S771.8[农业科学—森林工程] Q949.758.9[农业科学—林学]