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首页> 外文期刊>Irish Geography >Object oriented classification of disturbance on raised bogs in the Irish Midlands using medium- and high-resolution satellite imagery
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Object oriented classification of disturbance on raised bogs in the Irish Midlands using medium- and high-resolution satellite imagery

机译：使用中高分辨率卫星图像，对爱尔兰中部地区高地沼泽的扰动进行面向对象分类

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Raised bogs in the Irish Midlands are spatially extensive and disturbed. Peatland disturbance is relatively easy to identify on the ground, but it is difficult to quantify and more difficult to systematise a method of isolating where disturbance has occurred. The extent of raised bogs was delineated from the Derived Irish Peat Map version 2. An object-oriented approach was used to produce maps of disturbance type from medium- (IRS) and high-resolution (Geoeye-1 and Ikonos) imagery. The main disturbance types identified were conversion to pasture, afforestation, draining, cutover and cutaway peatlands. The medium resolution imagery was useful for examining peatland disturbance over large areas, but there was added value in developing maps using high resolution imagery. The overall accuracy assessment for the disturbance maps was between 62% and 90%. This method allows for the extent and severity of disturbance to be identified, which is a critical issue for quantification and security of the peatland carbon stock. The method was applied in Ireland's raised bogs but could be applied to peatland areas anywhere in the world.View full textDownload full textKeywordsraised bogs, disturbance, satellite imagery, object-oriented, IrelandRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/00750778.2011.615558
机译：爱尔兰中部地区的沼泽沼泽在空间上很广且很混乱。泥炭地干扰在地面上相对容易识别，但是很难量化，并且更难以系统化隔离发生干扰的位置的方法。从“派生爱尔兰泥炭地图”版本2中划定了沼泽的范围。使用了一种面向对象的方法，从中（IRS）和高分辨率（Geoeye-1和Ikonos）图像生成干扰类型的地图。确定的主要干扰类型为改建牧场，造林，排水，割接和切掉的泥炭地。中分辨率图像对于检查大面积的泥炭地扰动非常有用，但是在使用高分辨率图像开发地图时，它具有附加价值。干扰图的总体准确性评估在62％至90％之间。这种方法可以确定干扰的程度和严重性，这对于泥炭地碳储量的量化和安全性是至关重要的问题。该方法已应用于爱尔兰的高沼地，但也可应用于世界上任何泥炭地地区。查看全文下载全文关键字高沼地，干扰，卫星图像，面向对象，爱尔兰相关var addthis_config = {ui_cobrand：“泰勒和弗朗西斯在线”， services_compact：“ citeulike，netvibes，twitter，technorati，美味，linkedin，facebook，stumbleupon，digg，google，更多”，发布：“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/00750778.2011.615558

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