A method for information data collection and analysis of valley grassland degradation

A technology of information data and analysis methods, applied in the field of grassland degradation and improvement, can solve problems such as inaccurate data, low reliability, and bad environmental impact, and achieve accurate analysis and intuitive data analysis

CN108170926BInactive Publication Date: 2021-07-30YILI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-07-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for information data collection and analysis of grassland degradation in river valleys. The specific steps include: acquiring NDVI data, acquiring DEM data, information processing, data conversion, vegetation coverage inversion, grassland degradation grade division, grassland degradation Cold / hot spot analysis, grassland degradation spatio-temporal change analysis, grassland degradation cold / hot spot distribution and evolution, valley grassland degradation altitude differentiation, grassland coverage analysis, grassland degradation factor analysis, the present invention can use the grassland degradation grade division map, from the whole The data analysis is more intuitive for areas with obvious grassland degradation levels in the above analysis; the cold / hot spot analysis shows that the spatial difference between grassland degradation and improvement is more obvious; through the grassland coverage analysis, it is possible to quantitatively analyze and express different coverage levels. Grassland degradation characteristics; through the analysis of climate temperature, rainfall and grazing conditions, the analysis of grassland degradation is more accurate.
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Description

technical field

[0001] The invention relates to the technical field of grassland degradation and improvement, in particular to a method for collecting and analyzing information and data of grassland degradation in river valleys. Background technique

[0002] Under irrational use, the process of retrograde succession and productivity decline of grassland ecosystems is called grassland degradation, also known as grassland degradation. The main manifestations are the decline of the height, coverage, yield and quality of grassland vegetation, the deterioration of soil habitat, and the decline of production capacity and ecological function. The long-term and large-scale grassland degradation not only causes the decline of the productivity of the grassland itself, but also causes the deterioration of the ecological environment and threatens the survival and development of human beings. Under the influence of unfavorable natural factors such as drought, wind and sand, water erosio...

Examples

Embodiment 1

[0040] The following is the specific implementation process of the present invention in Ili River Valley, Xinjiang, my country.

[0041] The Yili River Valley is located in the northwest of Xinjiang, on the border of the motherland. Due to its special topographical features, it can intercept the moist water vapor brought by the land westerly, making it the largest oasis in Xinjiang and an important water source for the transnational river Yili River. Abundant precipitation creates favorable conditions for vegetation growth. Grassland develops in the Yili River Valley, which is the most widely distributed land cover type in the region, providing an important guarantee for regional biodiversity protection, water conservation and ecological balance maintenance. At the same time, the high-quality grassland resources in the valley also make it a famous pastoral area in the country. However, with the economic development and population increase in the Yili River Valley, the disturba...