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River ecological quality evaluation method based on remote sensing technology

A technology of river and quality, applied in the field of river ecological quality evaluation based on remote sensing technology, can solve problems such as inability to effectively reflect the state of river ecosystems, and achieve the effect of overcoming the incomplete evaluation of river ecological quality

Pending Publication Date: 2021-05-25
浙江易智信息技术有限公司 +1
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Problems solved by technology

The traditional river ecological evaluation uses physical and chemical factors as index factors, and reflects the environmental conditions of the river system through the analysis of each index, but this method cannot effectively reflect the state of the river ecosystem, but is essentially an ecological Environmental pressures faced by the system

Method used

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  • River ecological quality evaluation method based on remote sensing technology

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Embodiment Construction

[0024] The present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.

[0025] The invention provides a river ecological quality evaluation method based on remote sensing technology, including four index units including habitat quality index, water quality inversion index, landscape structure index and biodiversity index, and the habitat quality index unit includes the width of the riparian zone 3 index factors, bank protection type and foot protection type, are used to reflect the vegetation coverage on both sides of the river; the water quality inversion index unit includes 5 index factors of chlorophyll a concentration, transparency, total suspended solids concentration, total nitrogen, and total phosphorus. It is used to reflect the quality of river water; the landscape structure index unit includes three index factors: landscape diversity index, landscape fragmentation index and landscape disturbance index, which are u...

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Abstract

The invention discloses a river ecological quality evaluation method based on a remote sensing technology, which comprises four index units including a habitat quality index, a water quality inversion index, a landscape structure index and a biodiversity index, and each index unit is provided with different index factors. By means of remote sensing interpretation, quantitative inversion and Fragstats calculation, weights are given to 13 index factors under the four index units according to an analytic hierarchy process, overlay analysis is carried out, a the river ecological quality index is obtained. The evaluation method covers 13 index factors in the aspects of physical and chemical parameters, physical habitat and biocenosis of the water body, and can perform more refined evaluation on the river ecological quality by taking the pixel as a unit under the limitation of the watershed scale.

Description

technical field [0001] The invention relates to a river ecological quality evaluation method based on remote sensing technology. Background technique [0002] After a long period of development of river ecology, its evaluation system has become more and more perfect. With the acceleration of river governance, the evaluation of river ecological quality has become a hot topic in research. Many new methods and theories have been applied to research, and Most studies have been carried out at the watershed scale. The traditional river ecological evaluation uses physical and chemical factors as index factors, and reflects the environmental conditions of the river system through the analysis of each index, but this method cannot effectively reflect the state of the river ecosystem, but is essentially an ecological The environmental pressure faced by the system. Therefore, how to comprehensively and objectively evaluate the river ecology under the limitation of the basin scale is ...

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Application Information

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IPC IPC(8): G06Q10/06
CPCG06Q10/06393G06Q10/06395
Inventor 于辉程卓陈钢尚永衡沈正伟李德贵
Owner 浙江易智信息技术有限公司
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