Black land quality comprehensive evaluation method based on aviation hyperspectrum

Abstract

The invention belongs to the technical field of soil quality evaluation, and particularly relates to a black land quality comprehensive evaluation method based on aviation hyperspectrum, and the method comprises the following steps: 1, obtaining aviation hyperspectral data; 2, when the aviation hyperspectral data obtained in the step 1 is subjected to soil sampling on the ground, performing soil sampling on the ground to obtain ground data; 3, performing hyperspectral inversion on the soil quality index according to the data obtained in the step 1 and the step 2; 4, establishing an evaluation system by using an analytic hierarchy process, and obtaining the weight of each evaluation system index; 5, calculating the soil quality through comprehensive scoring; and 6, visualizing the soil quality comprehensive scoring result obtained in the step 5. According to the method, various aviation hyperspectral sensors are utilized, visible light-near infrared and thermal infrared bands are covered, the advantages of various sensors are exerted, various types of soil nutrients and environmental indexes are extracted, and the comprehensiveness of evaluation results is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of soil quality evaluation, and in particular relates to a method for comprehensive evaluation of black soil quality based on aerial hyperspectral. Background technique [0002] The black soil area in Northeast my country is one of the four major black soil areas in the world. The soil is fertile and rich in organic matter, making the Northeast my country an important grain production base. However, in recent years, due to the impact of human activities, the protection and utilization of black land resources are facing enormous pressure, such as agricultural production has thinned the soil layer of black land, and industrial activities have increased the risk of soil heavy metal pollution. Therefore, in order to scientifically use and protect Black soil, the quality evaluation of black soil has become particularly important. At present, the quality evaluation of black soil mainly relies on geochemical surve...

AI Technical Summary

Problems solved by technology

In this context, it is an appropriate way to use aerial hyperspectral remote sensing technology to carry out work, because aerial hyperspectral has the advantages of high spatial resolution and hyperspectral resolution. Without too much experience