Plastic film mulching farmland remote sensing monitoring method based on spectrum and texture features

Abstract

The invention discloses a plastic film mulching farmland remote sensing monitoring method based on spectrum and texture features, and the method comprises the steps: S1, carrying out preprocessing of remote sensing image data of a research area; S2, building a plastic film mulching agricultural remote sensing monitoring classification system; S3, employing a Google Earth image the same as the remote sensing image data of the research area, collecting irregular polygon samples of different ground features in the classification system, and drawing the outline of a regular polygon sample of an element at a preset size through visual interpretation; S4, carrying out the separable analysis, so as to select a usable band; S5, extracting a plurality of types of texture features based on the multiband data of a remote sensing image, and extracting the texture features at three steps in four directions; S6, carrying out dimension reduction of the extracted texture feature parameters, and selecting the texture features; S7, building an input feature parameter set based on the combination of spectrum and texture features; S8, carrying out the classification of ground features of the classification system through employing a classifier. The invention proposes a new method for monitoring a plastic film mulching farmland.

Description

technical field [0001] The invention relates to remote sensing monitoring technology, more specifically, to a method for remote sensing monitoring of farmland covered by plastic film based on spectrum and texture features. Background technique [0002] Plastic film mulching cultivation can significantly improve the habitat conditions such as temperature, light, water, air, and fertilizer in farmland, increase soil moisture, promote crop growth and development, shorten the growth period, avoid later-stage diseases and insect pests and natural disasters such as dryness, heat, and wind, and greatly increase crop yields , and can be listed in advance to increase economic income. It is one of the key cultivation techniques in arid and semi-arid areas, areas with low temperature and water shortage, and areas with large temperature and precipitation changes and regional differences. [0003] However, after the crops are harvested, the remaining mulch film in the farmland will cause...

AI Technical Summary

Problems solved by technology

However, the current spatial distribution pattern, distribution area and change characteristics of plastic film mulched farmland in my country are still unclear.

Therefore, it is impossible to provide a basis for the scientific planning and management of plastic film production, use, and residual film recycling, nor can it provide a reference for mitigating the negative impact of plastic film covering technology and finding effective ways to solve problems.

It is also unable to provide basic data for other research (crop phenology changes, surface temperature and humidity, evapotranspiration, etc.)

Images