Method for evaluating GIS-based agricultural non-point pollution production potential index

A technology of non-point source pollution and evaluation method, which is applied in the field of GIS-based evaluation of agricultural non-point source pollution occurrence potential index, which can solve the problems of non-point source pollution control lack of pertinence and effective discount of control measures.

Inactive Publication Date: 2007-02-28
NANJING UNIV
View PDF0 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is no suitable method for evaluating the potential of non-point source pollution and identifying priority control are

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
  • Method for evaluating GIS-based agricultural non-point pollution production potential index
  • Method for evaluating GIS-based agricultural non-point pollution production potential index
  • Method for evaluating GIS-based agricultural non-point pollution production potential index

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0072] In order to better implement the present invention, a GIS-based agricultural non-point source pollution occurrence potential index evaluation method was piloted in Dapu Town, Yixing City, Jiangsu Province.

[0073] Dapu Town has a population of 32,000 and the total land area of ​​the town is 46km 2 Among them, the water area is nearly 1,000 hectares, and the cultivated land area is 230 hectares. The population density is large, the proportion of land and water is large, and the land utilization rate is high.

[0074] 1 Collection of preliminary data

[0075] Collect data such as the village boundary map, soil type map, soil use type map, Dapu elevation map, farming conditions of each village, population data, and rainfall in Dapu Town through the relevant local departments, and part of it was obtained through field inspections.

[0076] 2 Establishment of GIS database

[0077] Use Mapinfo to perform image registration (WGS84, 50 North) and vectorization on the collected pic...

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 relates to an agriculture non-point pollution generating potentiality index evaluating method, based on GIS, wherein it uses Mapinfo as platform, building country boundary, soil type, soil utilization type, and superior layers; inputting character data; calculating out the year flux index (RI), soil loss index (SPI), fertilizer amount index (CUI), and human-animal discharge index (PAL) of each country; using model to calculate the non-point pollution generating potentiality index (APPI); then using said APPI to compare the pollution generating potentiality; and using classified method to display it on GIS picture. The invention can fix the first control area with serous pollution and main factor that affecting the non-point pollution generating potentiality, to improve the treatment.

Description

1. Technical field [0001] The invention relates to a method for evaluating and predicting agricultural environmental pollution, in particular to a method for evaluating the occurrence potential index of agricultural non-point source pollution based on GIS (Geographic Information System). 2. Background technology [0002] Non-point source pollution (NPS--Non-point source pollution, also known as surface source) refers to the pollutants entering the surface or groundwater in a wide-area, dispersed, and trace form. The trace amount refers to that the concentration of NPS pollutants is usually lower than that of point source pollution, but the total load of NPS pollution is very huge. [0003] Non-point source pollution is closely related to the precipitation process in the region. Its volume is large and wide, its formation is random, its impact is lagging, its impact factors are complex, and its monitoring and control are difficult. It mainly includes agricultural non-point so...

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): G01N33/00G06F19/00
Inventor 王晓蓉王宁郭红岩
Owner NANJING UNIV
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