应用GPS与GIS技术进行暗针叶林生态系统样地分析

应用生态学报 ›› 2002, Vol. ›› Issue (7): 773-776.

应用GPS与GIS技术进行暗针叶林生态系统样地分析

关文彬¹, 谢春华¹, 吴建安¹, 余新晓¹, 程根伟², 李同阳²

1. 北京林业大学, 水土保持部级重点开放实验室, 北京 100083;
2. 中国科学院成都山地灾害与环境研究所, 成都 610041

收稿日期:2001-10-29 修回日期:2002-03-27
通讯作者: 关文彬,男,1965年生,博士,副教授,主要从事生态学、景观生态、荒漠化防治研究,发表论文29篇.Tel:62338106-115,E-mail:Xiechunhua@263.net
基金资助:
国家自然科学基金重点项目(39930130);国家重点基础研究发展规划项目(G2000046807);教育部博士点基金资助项目(2000002209).

Plot analysis in the dark coniferous ecosystem using GPS and GIS techniques

GUAN Wenbin¹, XIE Chunhua¹, WU Jian'an¹, YU Xinxiao¹, CHEN Gengwei², LI Tongyang ²

1. The Key Laboratory of Soil and Water Conservation of Forestry Bureau, Beijing Forestry University, Beijing 100083;
2. Institute of Mountain Hazard & Environment, Chinee Academy of Sciences, Chengdu 610041

Received:2001-10-29 Revised:2002-03-27

摘要/Abstract

摘要： 高海拔地区原始林调查一直难度较大.采用GPS与GIS技术结合,不但便于设置与恢复样地,而且还能够比较精确地展现样地空间特征及其中乔木的空间分布格局.将快速静态定位与局部皮尺检测相结合,除个别点偏差较大外,定位相对比较精确,RMS平均为2.84,平均三维系统误差分别为:△B=1.2m,△L=1.2m,△H=4.3m,均方差分别是±0.6,±1.1,±21.1,能够满足于森林经营与管理的需要.GIS分析表明,暗针叶林生态系统主林冠层的郁闭度不能完全刻画出树冠对降雨的再分配作用.该方法充分展示了“2S”技术在小尺度森林生态系统管理中的应用潜力,尤其是在海拔较高,不便于进行航空、航天测量和常规测量的地区.

关键词: GPS, GIS, 群落调查, 样地分析, 垂直绿化, 潜力评价, 城市中心区, 南京, 计算流体动力学(CFD)

Abstract: It is generally difficult to survey in primary forests located on high altitude region. However, it is convenient to identify and to recognize plots accompanied by GPSand GIStechniques, which can also display the spatial pattern of arbors precisely. Using the method of rapid static positioning cooperated with tape measure, it is concluded that except some points, the positioning was relatively precise, the average value of RMSwas 2.84, variance was 2.96, and △B, △L, and △H were 1.2, 1.2, and 4.3m with their variances being ±0.6, ±1. 1, and ±21.1, respectively, which could meet the needs of forestry management sufficiently. Accompanied by some other models, many ecological processes under small and even medium scale, such as the dynamics of gap succession, could also be simulated visually by GIS. Therefore, the techniques of "2S" were patent for forest ecosystem management under the fine scale, especially in the area of high altitude.

Key words: GPS, GIS, Community investigation, Plot analysis, urban center, potential assessment, Nanjing City, green facade, computational fluid dynamics (CFD)

中图分类号:

S718.55

关文彬, 谢春华, 吴建安, 余新晓, 程根伟, 李同阳. 应用GPS与GIS技术进行暗针叶林生态系统样地分析[J]. 应用生态学报, 2002, (7): 773-776.

GUAN Wenbin, XIE Chunhua, WU Jian'an, YU Xinxiao, CHEN Gengwei, LI Tongyang . Plot analysis in the dark coniferous ecosystem using GPS and GIS techniques[J]. Chinese Journal of Applied Ecology, 2002, (7): 773-776.

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