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Ecological construction data processing method based on LU data and NDVI data

A data processing and data technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of inability to analyze vegetation index, difficult to achieve, etc.

Active Publication Date: 2017-03-29
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

However, vegetation cover data is not sensitive to changes in land use types, and it is impossible to analyze whether changes in vegetation index are caused by changes in land type area or land use intensity.
[0004] A very important aspect of ecological construction evaluation is to analyze and explain whether the effect of ecological construction is caused by changes in land use types, or by improvements in the quality and functions of land types, so as to further guide ecological construction work. It is still difficult to realize the research method of analyzing or only relying on the analysis of vegetation index changes

Method used

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  • Ecological construction data processing method based on LU data and NDVI data
  • Ecological construction data processing method based on LU data and NDVI data
  • Ecological construction data processing method based on LU data and NDVI data

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the accompanying drawings and the embodiments thereof, but the protection scope of the present invention is not limited to the scope described in the embodiments.

[0032] Taking the Mu Us sandy land as the case area, and taking 2000-2014 as the evaluation period, the specific application of the technical method of the present invention is further described. The specific application includes the following steps:

[0033] 1) Land use data and vegetation index data preparation: apply for the land use data interpreted based on TM image data during the research period from the Resource and Environment Science Data Center of the Chinese Academy of Sciences, the spatial resolution is 30m, and the land use classification system is 6 first-level categories , 25 secondary classes, due to the lack of data in 2014, use the land use data in 2010 instead to demonstrate the operation process of the method; downl...

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Abstract

The present invention discloses an ecological construction data processing method based on Land Use (LU) data and Normalized Difference Vegetation Index (NDVI) data. The method comprises the following steps of: (1) collecting the LU data at the beginning and the end of the evaluation period of a target evaluation area; (2) forming raster data of NDVI series in the target evaluation area; (3) analyzing land use change scale and space distribution situation; (4) analyzing tendency characteristics and space distribution situation of NDVI change in the target evaluation area; and (5) resampling the land use data, and calculating a contribution rate of land use change to NDVI change, ratios of land use types in a region with significant NDVI change, and change rates of NVDI of land types with important ecological functions. Data obtained by applying the ecological construction data processing method can reflect "quality" change of the land use types, also reflect "quantity" change of vegetation cover, and can synthetically reflect implementation effect of ecological construction project.

Description

technical field [0001] The invention relates to a method for processing ecological construction data, in particular to a method for processing ecological construction data based on LU data and NDVI data. Background technique [0002] Land degradation and desertification are one of the most serious environmental problems in the world, and they are also extremely prominent in my country, directly affecting the ecological security and sustainable development of our country. Under the dual effects of fragile ecological environment and increasingly intense human activities, it is very important to actively deal with land degradation and desertification for the protection of natural resources and sustainable development of our country. In order to alleviate the series of adverse effects brought about by land degradation, my country has launched a number of large-scale ecological protection projects, including shelterbelt construction, sandstorm control, wildlife protection and nat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 刘彦随李裕瑞曹智龙花楼
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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