Reservoir water body total nitrogen content estimation method based on optimized derivative calculation method

A technology of nitrogen content and water body, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of large fertilization loss, water quality pollution in water source protection areas, and insufficient attention to the negative effects of water quality in the artificial eucalyptus forest ecosystem, achieving high precision and protection The effect of water quality and ecological security

Inactive Publication Date: 2017-05-31
GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The loss of total nitrogen fertilization in fast-growing eucalyptus forests is much greater than that in other broad-leaved forests, resulting in serious water pollution in lakes and reservoirs in eucalyptus forests.
[0003] Previous studies have paid more attention

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reservoir water body total nitrogen content estimation method based on optimized derivative calculation method
  • Reservoir water body total nitrogen content estimation method based on optimized derivative calculation method
  • Reservoir water body total nitrogen content estimation method based on optimized derivative calculation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] The present invention will be further described below in conjunction with specific embodiments.

[0027] Such as Figure 1-2 As shown, the Hedi Reservoir is located in the northern Leizhou Peninsula, 14 kilometers northwest of Helip Town, the reservoir area across the Luchuan and Bobai counties of the Guangxi Zhuang Autonomous Region, located in the middle reaches of the Jiuzhou River, with a catchment area of ​​1,440 square kilometers and a total storage capacity of 11.51 100 million cubic meters is a large-scale reservoir that is mainly used for irrigation, combined with flood control, power generation, and shipping. The designed irrigation area is 2 million mu and the effective irrigation area is 1.27 million mu. The Hedi Reservoir is a multi-year regulating reservoir with a total storage capacity of 1.187.5 billion cubic meters, of which flood regulation storage capacity is 311.5 million cubic meters, Xingli storage capacity is 536 million cubic meters, and dead stora...

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

No PUM Login to view more

Abstract

The invention discloses a reservoir water body total nitrogen content estimation method based on an optimized derivative calculation method, wherein an estimation model is established according to the spectral reflectivity wavelength derivative and water body sample measured total nitrogen content, then total nitrogen content is estimated according to the estimation model, the estimation result is quickly obtained, and knowledge of the environmental problems of eucalyptuses in the reservoir area is deepened. The spectral reflectivity wavelength derivative is calculated by an optimized method which has higher precision than traditional derivative calculation method; and scientific support and decision basis are provided for protecting ecological safety and sustainable development of water quality.

Description

technical field [0001] The invention relates to the technical field of water quality ecological security, in particular to a method for estimating the total nitrogen content of reservoir water based on an optimized derivative calculation method. Background technique [0002] Eucalyptus is one of the three famous fast-growing tree species in the world. It is a subtropical evergreen plant native to Australia. Because eucalyptus is widely used in papermaking, wood-based panels, construction and other industries, the planting area of ​​eucalyptus in Guangdong is close to 3 million hectares 2 . The loss of total nitrogen fertilization in fast-growing eucalyptus forests is much larger than that in other broad-leaved forests, resulting in serious water pollution in lakes and reservoir drinking water source protection areas in eucalyptus forests. [0003] Previous studies paid more attention to air pollution purification, water and fertilizer utilization and nutrient cycle, water ...

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
no application Login to view more
IPC IPC(8): G01N21/25G01N21/31
CPCG01N21/25G01N21/31
Inventor 王重洋陈水森姜浩李丹王丹妮
Owner GUANGZHOU INST OF GEOGRAPHY GUANGDONG ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap