Sky-ground integrated monitoring method for monitoring pine wood nematode disease

Abstract

According to the technical scheme, the sky-ground integrated monitoring method comprises the steps that S1, firstly, infected and withered trees are extracted through unmanned aerial vehicle images, plaques of the infected and withered trees are extracted through satellite images, and on-site marking, positioning and measuring are conducted on the withered trees through ground investigation; s2, respectively acquiring high-spatial-resolution satellite remote sensing data and unmanned aerial vehicle remote sensing data as data sources, and jointly forming a data set of a monitoring area in combination with ground survey data and forest resource second-class survey data; s3, establishing samples of the epidemic trees according to the data, wherein the samples comprise spectral features, texture features and geometric features of the pine wood nematode disease withered and dead trees; and S4, according to the sample and satellite remote sensing, confirming the infected, withered and dead tree plaques, comprehensively applying an image enhancement and image classification method, performing verification, and establishing spatial distribution information and position information of the pine wood nematode disease withered and dead trees. The method has the advantages of high epidemic area screening efficiency, capability of realizing large-area efficient monitoring, convenience in acquisition of remote sensing data of the unmanned aerial vehicle, high recognition precision and guarantee for precision verification.

Description

technical field [0001] The invention relates to the technical field of pine wood nematode research, in particular to a sky-ground integrated monitoring method for monitoring pine wood nematode disease. Background technique [0002] Pine xylophilus is the most serious and devastating alien invasive species of pine trees. It can cause the death of pine trees within about 40 days at the earliest after being infected, and all die within 2-3 months. Since its first discovery in my country in 1982, it has spread rapidly. In March 2021, it has spread to 723 county-level administrative regions in 17 provinces (cities, autonomous regions) across the country, including 70 counties (cities, districts) in Zhejiang Province. , the situation of prevention and control is very severe. [0003] Active prevention and control efforts with increasing investment and increasingly strict measures have failed to completely block the spread of the epidemic. The most important reason is the lack of t...

AI Technical Summary

Problems solved by technology

However, these methods are still at the level of single technology utilization at the practical level. The respective advantages of satellite remote sensing and UAV remote sensing have not been fully utilized, and a complete production-oriented application technology system has not been formed. Cost and efficiency are still the main problems.

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