Studies on Mangrove in Thailand
Studies on Mangrove in Thailand
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泰国红树林研究
DOI：
10.2525/ecb1963.28.119
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
T. Nagano
中科院分区：
文献类型：
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作者：
T. Nagano
利用气球拍摄的照片绘制了泰国Chantabri和Phang-nga的红树林植被图，卫星数据的使用为生态研究中观察植被和景观格局提供了一个全新的发展。然而，虽然卫星技术适用于大规模生态系统的研究，但它不能提供植被测绘等项目所需的详细信息。为了获得某些红树林的详细植被图，制作了一个气球航空摄影系统。气球系统是一个简单的机制，提供了易于操作以及经济的生产成本。该系统的功能特点是：1）通过观察气球拍摄的航空照片中树冠的颜色差异，很容易区分红树林的种类; 2）结合航空照片和地面调查，可以有效地绘制详细的植被图。植被图是用图像分析计算机描述的。虽然球提取的数量减少到一半的视觉分类方法相比，这种分析方法是足够的描述森林的主要冠层组成。
Photographs taken from a balloon were utilized in the description of a vegetation map of mangrove forests in Chantabri and Phang-nga, Thailand.The use of satellite data has presented an entirely new development for observing vegetation and landscape patterns in ecological studies. However, while the satellite technique is suitable for research on large-scale ecological systems, it does not provide the detailed information needed for projects such as vegetation mapping surveys.For obtaining detailed vegetation maps of certain mangrove forests, a balloon-mounted aerial photographic system was produced. The balloon system is a simple mechanism which offers ease of operation as well as economical production costs. It is thus especially useful for field survey applications in South-east Asia.The functional characteristics of the system are as follows.1) It is easy to discriminate mangrove species by observing the difference in color of the forest crowns in the aerial photographs taken from the balloon.2) Detailed vegetation maps can be efficiently drawn up by combining aerial photographs and ground surveys.3) The vegetation map was described using an image-analyzing computer. Although the number of sphere extractions was reduced to half in comparison with visual classification methods, this analyzing method is adequate for describing the main canopy composition of the forest.