Remote sensing estimation method for crop yield based on adjustable vegetation index
A technology of crop yield and vegetation index, which is applied in the field of crop yield estimation in the agricultural field, can solve the problems of low yield estimation efficiency and accuracy, and achieve the effect of accurate page index LAI value
Active Publication Date: 2018-01-19
航天信德智图(北京)科技有限公司
View PDF4 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the method of using remote sensing observation data to quantitatively invert the leaf area index or biomass for yield estimation has the disadvantages of low yield estimation efficiency and accuracy
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.
[0038] figure 1 It shows a schematic flow chart of the crop yield remote sensing estimation method based on the adjustable vegetation index according to the embodiment of the present invention. like figure 1 As shown, in step 10, for the region where the crop yield needs to be estimated, obtain the multi-source multi-temporal remote sensing observation data of the crops in the region in the early growth period, mid-growth period and growth maturity period, and determine based on th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A remote sensing estimation method for crop yield based on an adjustable vegetation index includes the following steps: acquiring multi-source and multi-temporal remote sensing observation data of crops in an area of which the crop yield is to be estimated in the growth period, determining the multi-temporal adjustable vegetation index of the crops based on the remote sensing observation data, andgetting the multi-temporal leaf area index LAI based on the remote sensing observation data through inversion; based on pre-obtained crop growth model prior data of an area, setting the input parameters and initial conditions of the crop growth model in the area, and repeatedly running the crop growth model to obtain multiple simulated LAI curves and corresponding crop yields; selecting multipleLAI curves of which similarity with the multi-temporal leaf area index LAI based on the remote sensing observation data is above 75%, fitting the LAI curves to get a fitted LAI curve, and taking the average of the crop yields corresponding to the LAI curves of which similarity with the multi-temporal leaf area index LAI is above 75% as the crop yield corresponding to the fitted LAI curve; and taking the crop yield as the estimated yield of the area. By using the method, the accuracy of crop yield estimation can be improved.
Description
technical field [0001] The invention relates to crop yield estimation technology in the agricultural field, in particular to a crop yield remote sensing estimation method based on an adjustable vegetation index. Background technique [0002] Crop yield estimation has important theoretical research significance and practical application value for the formulation and implementation of field management strategies, food quality and safety assessment, and loss assessment of diseases, insect pests and meteorological disasters. It is a research hotspot in the field of precision agriculture. In the field of precision agriculture, the use of remote sensing technology is gaining more and more attention. Compared with time-consuming and laborious ground sampling, remote sensing observation with temporal and spatial continuity can obtain crop observation data in a timely, accurate and large-scale manner, thus providing scientific data support for crop yield estimation. [0003] Crop yi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06Q10/04G06Q50/02
Inventor 戴维序赵淑珍马瑞宽
Owner 航天信德智图(北京)科技有限公司