A technical method for dynamic monitoring of carbon storage in forest ecosystems

An ecosystem and dynamic monitoring technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of inaccuracy, time-consuming, heavy workload, etc., achieve rich spectral information, reduce workload and work time, improve work efficiency

Inactive Publication Date: 2011-12-21
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

[0003] ①Traditional methods for large-scale forest ecosystems require a large amount of manpower and material resources for field investigation of sample plots, and the workload is huge;
[0004] ②Forest resource inventory is carried out every 5 years in my country. It usually takes 3-5 years from the start of field survey to data collation and mapping to the final completion of the results. It takes a long

Method used

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Embodiment Construction

[0018] The technical methods for dynamic monitoring of carbon storage in forest ecosystems are different from traditional ones, specifically:

[0019] 1. Collection of field survey data and calculation of forest carbon storage. According to the field survey method of dendrology, make a 2m x 2m sample plot for shrubs, investigate the coordinates of the sample plot, collect the ground part, dry and weigh the dry weight to obtain the shrub biomass; make a 1m x 1m sample plot for herbs , investigate the coordinates of the sample plot, collect the ground part, dry and weigh the dry weight to obtain the herbaceous biomass; make a standard plot of 30m x 30m for the arbor woodland, and investigate the coordinates of the sample plot and the tree height and DBH data of the trees. According to the formula M=G 1.3 *(H+3)*f calculates stand volume, where M represents forest volume, G 1.3 The total basal area of ​​breast height per hectare, H represents the average stand height, f represe...

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Abstract

The invention discloses a technical method for dynamic monitoring of carbon storage in forest ecosystems. The steps are: firstly, obtain the forest ecosystem biomass according to the field survey data, and then calculate the forest ecosystem carbon storage from the forest ecosystem biomass; secondly, use the forest ecosystem carbon storage and remote sensing The relationship between the gray value of the image and the factors of the geographic information system, the carbon storage inversion model during the field survey period was established, and the carbon storage of the forest ecosystem during the field survey period was obtained from the inversion; finally, the image during the field survey period was used as a reference image , carry out relative atmospheric correction on regional historical remote sensing images and reference images, and use the carbon stock inversion model during the field survey period to calculate the carbon stock of the forest ecosystem in each historical period of the region, so as to achieve accurate , Rapid dynamic monitoring of forest ecosystem carbon storage.

Description

1. Technical field [0001] The invention relates to a technology for dynamic monitoring of forest ecosystems, in particular to a technology and method for dynamic monitoring of carbon storage in forest ecosystems. 2. Technical background [0002] At present, the traditional method for the research on the dynamic changes of carbon storage in forest ecosystems is to estimate the carbon storage of forest vegetation based on the relationship between the biomass and stock of different forest types based on the early forest resource inventory data, but the above-mentioned techniques are not Has its obvious disadvantages and deficiencies: [0003] ①Traditional methods for large-scale forest ecosystems require a large amount of manpower and material resources for field investigation of sample plots, and the workload is huge; [0004] ②Forest resource inventory is carried out every 5 years in my country. It usually takes 3-5 years from the start of field survey to data collation and ...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 冯仲科韦雪花姚山刘德庆
Owner BEIJING FORESTRY UNIVERSITY
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