Method for comprehensive assessment of geological sequestration CO2 leakage tolerance of crops

A technology of geological storage and comprehensive evaluation, which is applied in the field of crop tolerance evaluation to CO2, and can solve the problems of less research on tolerance and the impact of leaking plants/crops, etc.

Inactive Publication Date: 2019-04-19
NORTHWEST UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Although there have been some studies on CO 2 Case studies of spillage impacts on plants/crops, but systematic understanding of crop impacts on CO 2 Response a

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  • Method for comprehensive assessment of geological sequestration CO2 leakage tolerance of crops
  • Method for comprehensive assessment of geological sequestration CO2 leakage tolerance of crops
  • Method for comprehensive assessment of geological sequestration CO2 leakage tolerance of crops

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Embodiment Construction

[0028] The embodiments of the present invention will be described in detail below, however, the embodiments of the present invention are not limited thereto. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] A crop for geological sequestration of CO 2 A comprehensive evaluation method for leakage tolerance, the specific steps include:

[0030] Step 1: Calculation of individual index tolerance coefficient

[0031] The formula for calculating the tolerance coefficient of a single index is as follows:

[0032]

[0033] refers to the average value under different treatments, V CK Refers to the measured value of the control treatment.

[0034] Step 2: Correlation Analysis and Principal Component Analysis

[0035] According to the calculation method of correlation coefficient, the correlation analysis is c...

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Abstract

The invention discloses a method for comprehensive assessment of geological sequestration CO2 leakage tolerance of crops. The method includes steps: calculating single-index tolerance coefficients, subjecting each index to correlation analysis and calculating a correlation coefficient matrix according to a correlation coefficient calculation method, performing principal component analysis on the basis of the correlation coefficient matrix, converting multiple original correlative indexes into few new independent comprehensive indexes, and selecting j principal components as the comprehensive indexes on the basis of principal component analysis, wherein sigma Pj>0.85; according to a fuzzy comprehensive evaluation method, calculating CO2 comprehensive tolerance indexes (Dk) of each crop by formulas as shown in the specification. Eight typical C3 and C4 crops in the loess plateau of northern Shaanxi are used as objects for creating the method for assessment of CO2 tolerance of the crops,crops tolerant to high-concentration CO2 is screened out, and references are provided for agricultural production decisions in CCS projection areas in the loess plateau of northern Shaanxi.

Description

technical field [0001] The present invention relates to a kind of crop to CO 2 Tolerance evaluation method, specifically a crop for geological sequestration of CO 2 A comprehensive evaluation method for leakage tolerance. Background technique [0002] Due to the late start of CCS project construction, the storage capacity is relatively small, and no obvious CO 2 leakage phenomenon, the current CO 2 Most studies on the impact of leakage on plants or crops focus on field or indoor simulation studies for CCS projects and other CO 2 On-the-spot investigation and study of the leak point. Beaubien, Krüger et al. through the natural CO 2 The study of vegetation coverage near the leak point found that plants within 6m from the leak center were significantly affected, and the vegetation coverage gradually recovered from the center to the outside; Pfanz H et al. found that CO 2 The increase of the concentration will cause the weakening of the photosynthesis of Timothy grass; Lak...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0098
Inventor 薛璐马俊杰刘丹刘浩东赵晨阳
Owner NORTHWEST UNIV
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