CN113628060A - WebGIS-based mangrove forest information management system - Google Patents
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Abstract
The invention relates to a mangrove forest information management system based on WebGIS, which comprises a data acquisition module, a database module, a data management module, a layer management and output module, an analysis and statistics module and a thematic customization module, wherein the data acquisition module is used for acquiring data of mangrove forest information; the data acquisition module is used for acquiring mangrove forest data and sending the data to the database module; the database module divides the mangrove forest data into basic data and analysis data, and stores the basic data and the analysis data into corresponding databases; the data management module is used for updating the database module; the database module is a data source of the layer management and output module, the analysis and statistics module and the special customization module.
Description
Technical Field
The invention belongs to the field of ecological environment protection, and particularly relates to a mangrove forest information management system based on WebGIS.
Background
The mangrove forest is a woody plant community naturally distributed in the intertidal zone of tropical and subtropical coast, and forms a mangrove forest wetland ecosystem together with the related habitat of the tidal flat land, the saline flat land and the tidal mixed zone. The mangrove forest ecosystem plays an irreplaceable important role in resisting sudden ecological disasters such as tsunami, storm tide and the like, protecting coastal dams, keeping the diversity of coastal organisms, maintaining the stability and balance of the bay estuary ecosystem and the like. In the priority starting project of the Chinese wetland protection action plan, it is clearly indicated that the basic information monitoring system and the information management system of animal and plant diversity in the mangrove wetland ecosystem are established, so that the working efficiency of the mangrove management department of the government is greatly improved, and the efficient protection and the reasonable development and utilization of mangroves are realized. Most of the existing mangrove forest database management systems are developed secondarily by using ArcView or ArcEngine, users must have corresponding operating environment and professional knowledge when using the mangrove forest database management systems, the user use threshold is high, and the mangrove forest database management systems are difficult to popularize and use. Meanwhile, the spatial dimension and the time dimension of mangrove forest ecological survey data are not uniform, and effective analysis and comprehensive analysis of the data are insufficient. Therefore, the development of database systems with low usage thresholds is urgent. The WebGIS is an extension and development of a traditional GIS (geographic information system) on the network, and has been widely applied to the fields of disaster assessment, geology and the like, and a user can access and use the system through a browser. In addition, a database framework is constructed based on long-term field investigation and mangrove ecological data analysis experience, and comprehensive analysis and application decision of ecological data are further promoted. In conclusion, in order to facilitate government departments and scientific research personnel to efficiently obtain the basic information of the mangrove forest, a mangrove forest information management system based on the WebGIS is urgently needed to be constructed.
Disclosure of Invention
Aiming at the defects of the existing database system, the invention provides a mangrove forest information management system based on WebGIS, which comprises a data acquisition module, a database module, a data management module, a layer management and output module, an analysis and statistics module and a thematic customization module;
the data acquisition module is used for acquiring mangrove forest data and sending the acquired mangrove forest data to the database module, wherein the mangrove forest data comprise ground survey data, remote sensing images and mangrove forest protection area data, and the remote sensing images comprise satellite remote sensing images and unmanned aerial vehicle remote sensing images;
the database module is used for storing mangrove forest data and storing the mangrove forest data into a MySQL database;
the data management module provides functions of checking, importing and exporting mangrove forest data, changes of basic attribute table structures of elements, updates of attribute table data, addition, modification and deletion of relationship tables and table structure change operation, and after the data are stored in the database module, the data are connected with a database by using an Express frame of node.js and used for updating the data in the database module;
and the layer management and output module realizes the display of data in the database module, reads the data in the database module by using the GET/POST request of node. Providing operation functions of spatial data editing, layer management, graphic output and the like; the customized layer rendering mode can be provided to render the layer, elements such as legends, compass, scales, characters, pictures, grids and the like can be added in a user-defined mode, free and diverse page settings are provided, thematic map management, layer addition and deletion, printing and outputting are carried out to files in various formats and the like;
the analysis and statistics module provides various spatial query modes such as simple query, condition query, matching query and the like according to the requirements of a user on the basis that the layer management and output module reads the data of the database module according to the normalized data in the database module, so that operations such as query, positioning, highlighting and the like from the attribute to the space are realized, and query from the space to the attribute data is also provided; the functions of statistical classification analysis, superposition analysis, distance and area calculation and the like are realized; in addition, the health condition of the mangrove forest can be analyzed, and the health condition of the mangrove forest is evaluated by utilizing a mangrove forest health evaluation model through the calculated mangrove forest stand structure and the physical and chemical property related indexes of the mangrove forest wetland;
the thematic customization module is used for switching different thematic maps according to user requirements and by combining normalized data in the database module.
Further, the data acquisition module acquires ground survey data through field investigation of personnel, wherein the ground survey data comprises longitude and latitude, types, breast height and height of mangrove plants;
further, the unmanned aerial vehicle remote sensing image is obtained by shooting through a Xinjiang unmanned aerial vehicle;
further, the satellite remote sensing image is a Landsat-8 satellite image.
The invention has the beneficial effects that:
the mangrove forest information management system based on the WebGIS provided by the invention has the greatest characteristic that the mangrove forest information management system is not limited by an operating environment, can be directly accessed and used through a browser, and does not need to install desktop end software. The system comprises a data acquisition module, a database module, a data management module, a layer management and output module, an analysis and statistics module and a thematic customization module. The mangrove forest database in a certain area can be conveniently established, the spatial dimension and the time dimension are unified, the basic information of the mangrove forest in the area is checked, and simple analysis statistics is carried out. And the user can customize different thematic maps according to the requirement. The invention can provide information for mangrove researchers and can also provide popular science service for the society.
Drawings
FIG. 1 is a frame diagram of the mangrove forest information management system based on WebGIS.
FIG. 2 is a graph showing the effect of individual marking of mangrove plants in a map.
Fig. 3 is a diagram showing the effect of mangrove forest species identification on a map.
Detailed Description
The invention is further described with reference to the accompanying drawings and examples.
As shown in fig. 1, the invention provides a mangrove forest information management system based on WebGIS, which comprises a data acquisition module, a database module, a data management module, a layer management and output module, an analysis and statistics module and a thematic customization module;
the data acquisition module is used for acquiring mangrove forest data and sending the acquired mangrove forest data to the database module, wherein the mangrove forest data comprise ground survey data, remote sensing images and mangrove forest protection area data, and the remote sensing images comprise satellite remote sensing images and unmanned aerial vehicle remote sensing images;
the database module is used for storing mangrove forest data and storing the mangrove forest data into a MySQL database;
the data management module provides functions of checking, importing and exporting mangrove forest data, changes of basic attribute table structures of elements, updates of attribute table data, addition, modification and deletion of relationship tables and table structure change operation, and after the data are stored in the database module, the data are connected with a database by using an Express frame of node.js and used for updating the data in the database module;
and the layer management and output module realizes the display of data in the database module, reads the data in the database module by using the GET/POST request of node. Providing operation functions of spatial data editing, layer management, graphic output and the like; the customized layer rendering mode can be provided to render the layer, elements such as legends, compass, scales, characters, pictures, grids and the like can be added in a user-defined mode, free and diverse page settings are provided, thematic map management, layer addition and deletion, printing and outputting are carried out to files in various formats and the like;
the analysis and statistics module provides various spatial query modes such as simple query, condition query, matching query and the like according to the requirements of a user on the basis that the layer management and output module reads the data of the database module according to the normalized data in the database module, so that operations such as query, positioning, highlighting and the like from the attribute to the space are realized, and query from the space to the attribute data is also provided; the functions of statistical classification analysis, superposition analysis, distance and area calculation and the like are realized; in addition, the health condition of the mangrove forest can be analyzed, and the health condition of the mangrove forest is evaluated by utilizing a mangrove forest health evaluation model through the calculated mangrove forest stand structure and the physical and chemical property related indexes of the mangrove forest wetland;
the special topic customizing module is used for switching different special topic maps, such as Futian mangrove urbanization special topic maps, Guangxi mangrove pest and disease damage special topic maps and the like, according to user requirements and by combining normalized data in the database module.
Furthermore, the data acquisition module acquires ground survey data including the longitude and latitude, the variety, the breast height, the height and the like of the mangrove plant through personnel field survey;
further, shooting and acquiring the remote sensing data of the unmanned aerial vehicle by using the unmanned aerial vehicle in Xinjiang province;
further, the satellite remote sensing data is mainly Landsat-8 satellite data.
In the invention, a mangrove forest information management system based on WebGIS is constructed by taking the Bay district of hong Kong and Australia as an example.
For mangrove forest ground data collected in the field, sorting the information of the mangrove plants such as longitude and latitude, variety, breast height, height and the like; mangrove forest protected area data mainly include basic chemical indexes such as longitude and latitude, area and pH, pollution indexes such as heavy metal concentration and economic development indexes of the area where the mangrove forest protected area data is located, and the data mainly come from laboratory detection and related documents. And classifying the unmanned aerial vehicle remote sensing data by utilizing the existing mangrove forest species identification algorithm.
And establishing a mangrove plant individual plant data table and a mangrove forest protected area data table in a Mysql database. Longitude and latitude serve as common main keys in a mangrove plant individual plant data table; and in the mangrove forest protected area data table, the protected area name is used as a main key. The individual mangrove plants and the mangrove forest protection area are in a many-to-one relationship, so the name of the protection area is used as an external key of the data sheet of the individual mangrove plants.
The result of mangrove forest species identification is a picture format without latitude and longitude information, and the format conversion is needed because the Leafelet frame needs GeoJSON data. The method specifically comprises the following steps:
selecting a plurality of specific control points, and acquiring longitude and latitude coordinates of the selected points from related map software. In arcmap10.3, known latitude and longitude coordinates are input for geographic registration using a "georefering" tool, and a geographic coordinate system is defined using a "define projection" tool.
In arcmap10.3, the raster image is segmented by using a Spatial analysis tool, namely a reclassification segmentation tool, several mangrove forest species or ground object types exist, namely several regions are output, and then an attribute table is added to the segmented raster image.
In ArcMap10.3, a transformation tool-transformation from grid to grid-transformation plane tool is used to transform the grid image into a vector image, and then a data management tool-drawing synthesis-fusion tool is used to merge the mangroves of the same species into one plane.
And converting the shp format file into a GeoJSON file by using the service provided by https:// mapdriver.
Js Express frame is used for building a website, and a static file path is set, wherein the static file comprises pictures, CSS, JavaScript scripts and the like.
And reading the individual mangrove plant data in the Mysql database by using an SQL statement, and storing the individual mangrove plant data in a cache table < table > in html.
In script, using HTML DOM (document object model) to read data in < table >, marking on the map, and clicking the marked point to display the specific information of the mangrove plant, the effect is shown in fig. 2.
The GeoJSON file is converted into a JavaScript file, the JavaScript file is introduced into a map, a mouse is moved into a certain mangrove plant area to highlight the mangrove plant area, the name of the mangrove plant is displayed, and the effect is shown in figure 3.
Claims (4)
1. A mangrove information management system based on WebGIS is characterized in that: the system comprises a data acquisition module, a database module, a data management module, a layer management and output module, an analysis and statistics module and a special subject customization module;
the data acquisition module is used for acquiring mangrove forest data and sending the acquired mangrove forest data to the database module, wherein the mangrove forest data comprise ground survey data, remote sensing images and mangrove forest protection area data, and the remote sensing images comprise satellite remote sensing images and unmanned aerial vehicle remote sensing images;
the database module is used for storing mangrove forest data and storing the mangrove forest data into a MySQL database;
the data management module provides functions of checking, importing and exporting mangrove forest data, changes of basic attribute table structures of elements, updates of attribute table data, addition, modification and deletion of relationship tables and table structure change operation, and after the data are stored in the database module, the data are connected with a database by using an Express frame of node.js and used for updating the data in the database module;
and the layer management and output module realizes the display of data in the database module, reads the data in the database module by using the GET/POST request of node. Providing operation functions of spatial data editing, layer management, graphic output and the like; the customized layer rendering mode can be provided to render the layer, elements such as legends, compass, scales, characters, pictures, grids and the like can be added in a user-defined mode, free and diverse page settings are provided, thematic map management, layer addition and deletion, printing and outputting are carried out to files in various formats and the like;
the analysis and statistics module provides various spatial query modes such as simple query, condition query, matching query and the like according to the requirements of a user on the basis that the layer management and output module reads the data of the database module according to the normalized data in the database module, so that operations such as query, positioning, highlighting and the like from the attribute to the space are realized, and query from the space to the attribute data is also provided; the functions of statistical classification analysis, superposition analysis, distance and area calculation and the like are realized; in addition, the health condition of the mangrove forest can be analyzed, and the health condition of the mangrove forest is evaluated by utilizing a mangrove forest health evaluation model through the calculated mangrove forest stand structure and the physical and chemical property related indexes of the mangrove forest wetland;
the thematic customization module is used for switching different thematic maps according to user requirements and by combining normalized data in the database module.
2. The mangrove forest information management system of claim 1, wherein the data acquisition module obtains ground survey data through on-site survey of personnel, the ground survey data comprising the longitude and latitude, species, diameter at breast height, height of mangrove plants.
3. The mangrove forest information management system of claim 1, wherein the unmanned aerial vehicle remote sensing image is obtained by shooting with a Dajiang unmanned aerial vehicle.
4. The mangrove information management system of claim 1, wherein the satellite remote sensing image is a Landsat-8 satellite image.
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| CN117875758A (en) * | 2023-12-20 | 2024-04-12 | 广东省科学院广州地理研究所 | Driving evaluation method for mangrove ecological quality |
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