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林业科学 ›› 2008, Vol. 44 ›› Issue (1): 95-100.doi: 10.11707/j.1001-7488.20080116

• 论文 • 上一篇    下一篇

基于DEM的辽宁省猴石森林公园的视域分析

李月辉1 周锐1.2 冯秀3 胡志斌1 牛剑锋4 谭振军4   

  1. (1.中国科学院沈阳应用生态研究所 沈阳110016;2.中国科学院研究生院 北京 100039;3. 内蒙古大学生命科学学院生态与环境科学系 呼和浩特010021; 4.辽宁省林业厅 沈阳 110036)
  • 收稿日期:2007-02-13 修回日期:1900-01-01 出版日期:2008-01-25 发布日期:2008-01-25

Viewshed Analysis of Viewing Point in Houshi Forest Park

Li Yuehui1,Zhou Rui1,2,Feng Xiu3,Hu Zhibin1,Niu Jianfeng4,Tan Zhenjun4

  

  1. (1.Institute of Applied Ecology, Chinese Academy of Sciences Shenyang 110016;2. Graduate University of Chinese Academy of Sciences Beijing 100039;3. Department of Ecology and Environment, InnerMongoliaUniversity Huhhot 010021;4. Forestry Department of Liaoning Province Shenyang 110036)
  • Received:2007-02-13 Revised:1900-01-01 Online:2008-01-25 Published:2008-01-25

摘要:

利用GIS视域分析功能,基于地形特征,对辽宁省猴石国家森林公园内可达景点、不可达景点和游道的视域特征进行分析,其中,游道的视域特征以游道上间隔50 m的75个样点来表征。结果表明:公园内可达景点分布较为合理,一类位于游道两侧山坡上,视野开阔,90%景点的视域面积达100 hm2以上;另一类分布在近游道两侧,视域面40~70 hm2。不可达景点可视性良好,75%的景点视域面积达100 hm2以上,观赏价值充分体现;游道分布较为合理,全程可观赏到公园总面积的41.71%,游道内的平均视域面积为(61.96±23.52) hm2。视域内地形呈一定程度起伏,平均高差350 m,兼具一览无余的豁达之美与峰回路转的曼妙之美。研究以游览者的景观视觉特征分析为目的,探讨森林公园景点和游道规划的定量依据,是对目前旅游区景观视觉特征评价的重要补充,是旅游区总体规划和综合管理的重要依据之一。

关键词: 森林公园, 数字高程模型, 视域分析, 地理信息系统, 景点, 游道

Abstract:

Based on the topographical characteristics, we employed the viewshed analysis in GIS to analyze the viewshed of the sight points(accessible and inaccessible) and tourist roads in Houshi National Forest Park in Liaoning. The results shows that all kinds of accessible points are distributed appropriately in which the viewshed area from accessible points on the higher hillslope far away from the road is almost more than 100 hm2, while the viewshed area from accessible sight points close to the road is 40~70 hm2 The visibility of the inaccessible sight points is satisfactory, and the viewshed area of 75% of them is larger than 100 hm2 The tourist roads spread reasonably. When going through the whole road, the tourists can overlook 41.71% of the entire forest park area, which equals roughly to the the mean viewshed area of (61.96±23.52) hm2, with three obvious fluctuations. Meanwhile, there is a relative big relief in each viewshed area from the road points, so that the tourists can experience the changing views when they walk along the road. This study focuses on the viewshed area characteristics from sight points and tourist roads, and provides a quantitative method to design the sight points and roads. It is also with a complement to current landscape visual assessment for planning and managing forest parks or other tourism areas.

Key words: forest park, DEM, viewshed analysis, geographic information system, tourism point, tourism road