基于GIS极坐标的丹顶鹤野外调查定位方法  

Positioning Method Used in the Study of Spatial Distribution of Red-Crowned Crane Based on GIS Polar Coordinate

作　　者：谢富赋 刘红玉[1,2,3] 李玉凤 王娟[1,2,3] 刘伶 XIE Fufu;LIU Hongyu;LI Yufeng;WANG Juan;LIULing(Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University,Nanjing 210023,China;State Key Laboratory Cultivation Base of Geographical Environment Evolution,Jiangau Province,Nanjing 210023,China;Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application,Nan]ing 210023,China)

机构地区：[1]南京师范大学虚拟地理环境教育部重点实验室,江苏南京210023 [2]江苏省地理环境演化国家重点实验室培育建设点,江苏南京210023 [3]江苏省地理信息资源开发与利用协同创新中心,江苏南京210023

出　　处：《测绘地理信息》2018年第6期19-22,26,共5页Journal of Geomatics

基　　金：国家自然科学基金资助项目(31570459);江苏省高校自然科学研究重大资助项目(15KJA70002);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：运用GIS对极坐标定位方法的可行性和定位精度进行了探讨,并用SPSS软件对影响定位精度的因素进行了分析与讨论。结果表明,基于GIS的极坐标定位方法的粗定位精度在5m左右,应用于丹顶鹤等体型较大的野生动物野外调查是可行的;影响定位总体误差的因素有方位角误差和距离误差,方位角和距离数据的质量直接影响定位精度;望远镜的读数误差是产生方位角误差的主要原因。建议在运用此方法时要特别注意定位数据的准确性和稳定性,可以通过较为精准的测角和测距仪器来提高此方法的定位精度。Red-crowned Crane is listed as one of endangered level species by the International Union for Conservation of Nature and Natural Resource (IUCN).Habitat and ecology protection as an important content of red-crowned cranes in situ protection has aroused wide public concern.Habitat re- search,however,because of lacking fine mapping data,the accurate spatial distribution study of birds is limited.There- fore,how to obtain field data of the red-crowned crane accu- rately is one of the important scientific problems of habitat research.Using polar coordinates positioning method and the GIS software,positioning method's feasibility and accu- racy,are discusse;Using SPSS software,the influencing factors of position precision are analyzed in this paper.The results shows that.,the coarse location accuracy of polar co- ordinates positioning method based on GIS is within 5me- ters;this method is feasible in the red-crowned cranes and other larger wildlife field investigation;factors that affect the overall positioning error are azimuth and distance errors; data quality of azimuth angle and distance directly affects the positioning accuracy;The telescope's reading error is the main reason for the azimuth error caused.It is suggested that we should payspecial attention to the accuracy of posi- tioning parameter data and the stability.Applying more pre- cise angle and distance measuring instrument is supposed to improve positioning accuracy of the method.

关 键 词：极坐标定位 GIS 丹顶鹤 精度分析 

分 类 号：P208[天文地球—地图制图学与地理信息工程]