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首页> 外文期刊>International journal of remote sensing >Analysis of seasonal land use in Usangu wetlands, Tanzania: an object-oriented technique for multi-temporal analysis with high-resolution data
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Analysis of seasonal land use in Usangu wetlands, Tanzania: an object-oriented technique for multi-temporal analysis with high-resolution data

机译：坦桑尼亚乌桑古湿地季节性土地利用分析：一种面向对象的多时态分析技术，具有高分辨率数据

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摘要

A multi-temporal analysis of Landsat panchromatic data was applied to the Usanga wetlands in Tanzania, where there are concerns that irrigated agricultural development is reducing downstream water availability. As there are many small fields, and even smaller areas of continuous vegetable cultivation throughout the year, 15-m resolution multi-temporal Landsat Enhanced Thematic Mapper Plus (ETM+) panchromatic data, acquired in the months of March, May and October, were used to extract information on the seasonal land use/cover in order to investigate agricultural water use. Object-oriented analysis was used to interpret these high-resolution data through definition of image segments, which were then classified using a pixel-based unsupervised classification method. This hybrid approach helps to process high-resolution data quickly and efficiently, so as to economically and effectively understand and classify land use/cover in highly heterogeneous and seasonally dynamic tropical conditions, where land units are typically small.
机译：将多时相Landsat全色数据分析应用于坦桑尼亚的Usanga湿地，在那里人们担心灌溉农业的发展正在减少下游的水供应。由于有许多小田地，而且全年仍在进行蔬菜种植，甚至面积较小，因此使用了在3月，5月和10月获得的15米分辨率的多时相Landsat增强型专题制图仪（ETM +）全色数据。提取季节性土地使用/覆盖的信息，以调查农业用水。面向对象分析用于通过图像段的定义来解释这些高分辨率数据，然后使用基于像素的无监督分类方法对其进行分类。这种混合方法有助于快速有效地处理高分辨率数据，从而经济高效地了解和分类高度不均一且季节性动态的热带条件下的土地利用/覆盖，土地类型通常很小。

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  • 来源
    《International journal of remote sensing》 |2011年第8期|p.1885-1900|共16页
  • 作者

    F. CANISIUS; H. TURRAL; B. P. MBILINYI;

  • 作者单位

    Department of Surveying and Land Information, Faculty of Engineering, University of West Indies, St. Augustine, Trinidad and Tobago;

    International Water Management Institute, Colombo, Sri Lanka;

    Sokoine University of Agriculture, Chuo Kikuu, United Republic of Tanzania;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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