Desertificated land remote sensing rapid identification method

An identification method and fast technology, applied in measurement devices, material analysis by optical means, instruments, etc., can solve the problems of cumbersome calculation process, isolated process, slow processing speed, etc., and achieve high time resolution, long time series, The effect of a short monitoring period

Active Publication Date: 2019-06-07
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

Although this technology can realize the monitoring of desertified land and the method is mature, the calculation process of this method is cumbersome and the processing speed is slow due to th

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  • Desertificated land remote sensing rapid identification method
  • Desertificated land remote sensing rapid identification method
  • Desertificated land remote sensing rapid identification method

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] figure 1 A schematic diagram of an overall process according to an embodiment of the present invention is shown. like figure 1 As shown, a method for rapid identification of desertified land remote sensing, the method includes, acquiring data, and preprocessing the data; extracting non-vegetation type information from...

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Abstract

The invention provides a desertificated land remote sensing rapid identification method and belongs to the technical field of remote sensing monitoring. The method comprises the following steps: obtaining data and carrying out data pretreatment; extracting non-vegetation type information from the pre-processed data; carrying out processing on the extracted non-vegetation type information, including extracting water body and building land type information; extracting naked land type information; and analyzing and identifying desertificated land. The method is high in data source time series andhigh in time resolution, is short in monitoring period with one year being a cycle, and can master the development or reversal of the desertificated land every year.

Description

technical field [0001] The invention belongs to the technical field of remote sensing monitoring, in particular to a remote sensing rapid identification method for desertified land. Background technique [0002] Land desertification refers to the process of natural desert expansion and vegetation destruction on sandy soil and bare sandy soil due to climate change and human activities. Land desertification refers to the process of the expansion of natural deserts and the destruction of vegetation and coverings on sandy soil, resulting in the formation of quicksand and bare sandy soil mainly due to unreasonable human activities; Land with obvious desertification tendency. Whether desertification will occur depends on how much water the soil contains for plants to absorb, use, and evaporate through the leaves of the plants. Any factor that destroys soil moisture will eventually lead to soil desertification, and the large-scale spread of land desertification is desertification...

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Application Information

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IPC IPC(8): G01N21/17G01N21/88
Inventor 张学霞张雪郭建斌刘晓姜群鸥高跃鹏方宇崔燚郭长庆
Owner BEIJING FORESTRY UNIVERSITY
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