Abstract
Abstract. Trough mastering background information of Yunnan province grassland resources utilization and ecological conditions to improves grassland elaborating management capacity, it carried out grassland resource investigation work by Yunnan province agriculture department in 2017. The traditional grassland resource investigation method is ground based investigation, which is time-consuming and inefficient, especially not suitable for large scale and hard-to-reach areas. While remote sensing is low cost, wide range and efficient, which can reflect grassland resources present situation objectively. It has become indispensable grassland monitoring technology and data sources and it has got more and more recognition and application in grassland resources monitoring research. This paper researches application of multi-source remote sensing image in Yunnan province grassland resources investigation. First of all, it extracts grassland resources thematic information and conducts field investigation through BJ-2 high space resolution image segmentation. Secondly, it classifies grassland types and evaluates grassland degradation degree through high resolution characteristics of Landsat 8 image. Thirdly, it obtained grass yield model and quality classification through high resolution and wide scanning width characteristics of MODIS images and sample investigate data. Finally, it performs grassland field qualitative analysis through UAV remote sensing image. According to project area implementation, it proves that multi-source remote sensing data can be applied to the grassland resources investigation in Yunnan province and it is indispensable method.
Highlights
In order to execute Party Central Committee and the State Council ecological civilization system reformation overall deployment to realize from quantitative control to entity control land resource management goal, it conducts county based grassland resource investigation by Yunnan province agriculture department and it finds out grassland resources utilization and ecological conditions in Yunnan province, which improves grassland elaborating management capability
After samples spectral characteristics statistical analysis, spectral characteristics of different grassland types can be formed, and the grassland properties can be determined according to the spectrum characteristic interval
This paper summarizes the application of multi - source remote sensing image in Yunnan grassland resource investigation
Summary
In order to execute Party Central Committee and the State Council ecological civilization system reformation overall deployment to realize from quantitative control to entity control land resource management goal, it conducts county based grassland resource investigation by Yunnan province agriculture department and it finds out grassland resources utilization and ecological conditions in Yunnan province, which improves grassland elaborating management capability. It provides data support for deepening grassland ecological civilization system reform comprehensively. Using Landsat 8 remote sensing image, it extracts investigation patch spectral characteristics, which is the determination base of grassland type. After samples spectral characteristics statistical analysis, spectral characteristics of different grassland types can be formed, and the grassland properties can be determined according to the spectrum characteristic interval
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