Ecological environment comprehensive evaluation method based on remote sensing technology and analytic hierarchy process
An analytic hierarchy process (AHP), an ecological environment technology, applied in the direction of instruments, data processing applications, resources, etc., can solve the problems of difficulty in obtaining the normalization coefficient of the weight value of the evaluation index, the inability to visualize the evaluation results, and the unreasonable setting of the index weight.
Pending Publication Date: 2022-04-22
LONGYAN UNIV
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Problems solved by technology
Although the "Specification" has been widely used since its trial implementation, there are certain problems such as the difficulty in obtaining some evaluation indicators of EI, the rationality of the weight values of each indicator, and the effective setting of the normalization coefficient.
According to the "Specification", the present invention uses remote sensing technology to obtain and evaluate various indexes, and proposes a remote sensing-based analytic hierarchy process ecological environment comprehensive index RAECI, which solves the problem that the index weight setting of the EI index method is unreasonable, the evaluation results cannot be visualized, and cannot Carry out spatial distribution analysis and other issues
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Embodiment 1
[0032] The ecological environment comprehensive evaluation method based entirely on remote sensing technology and analytic hierarchy process,
[0033] S1. Refer to the "Specifications", select evaluation indicators that can directly reflect the quality of ecological conditions, and build a regional ecological environment evaluation system. The evaluation system includes biological abundance index HQ, vegetation coverage index NDVI, water network density index WD, land stress index LS and pollution load index PM;
[0034] S2. Select remote sensing data according to the connotation of the index. According to the correlation between the connotation of the index and the remote sensing image, the Landsat series remote sensing image and PM2.5 product data were respectively selected;
[0035] S3, using remote sensing data to invert each evaluation index.
[0036] Bioabundance indicator HQ. Biological abundance is the evaluation of the abundance and poverty of organisms in the regi...
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The invention discloses an ecological environment comprehensive evaluation method based on a remote sensing technology and an analytic hierarchy process, and the method is characterized in that the method comprises the following steps: S1, selecting evaluation indexes which can visually reflect the quality of ecological conditions, and constructing a regional ecological environment condition evaluation system, the evaluation indexes comprise a biological abundance index HQ, a vegetation coverage index NDVI, a water network density index WD, a land stress index LS and a pollution load index PM; s2, selecting remote sensing data according to the index connotation, and respectively selecting Landsat series remote sensing images and PM2.5 product data according to the correlation between the index connotation and the remote sensing images; s3, using remote sensing data to invert each evaluation index; s4, performing normalization processing on each index; s5, establishing a hierarchical relationship between evaluation indexes by using an analytic hierarchy process, and determining the weight of each index; s6, calculating a regional ecological environment condition comprehensive index RAECI by using a formula; and S7, grading the regional ecological environment conditions according to the regional ecological environment comprehensive index.
Description
technical field [0001] The invention relates to the technical field of regional ecological environment assessment, in particular to a comprehensive ecological environment assessment method based on remote sensing technology and analytic hierarchy process. Background technique [0002] At present, the construction of ecological civilization is placed in a very prominent position. How to quantitatively explain the state and development trend of ecological environment quality, and scientifically judge the quality of ecological environment has gradually become one of the hot topics in current research. Based on the principles of scientificity, systematicness, representativeness, and operability, establish a corresponding evaluation index system for the status quo of the regional ecological environment, and select an appropriate comprehensive evaluation method to qualitatively or quantitatively evaluate the quality of the ecological environment in a certain area. The analysis an...
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Login to View More IPC IPC(8): G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26
Inventor 高鹏徐志刚刘桂馨阮鹏程
Owner LONGYAN UNIV