1. County building a database what it requires?
(1) requires county government leaders on the importance of this work have a full understanding and unwavering support.
The establishment of county-level land use information system is a project of enormous scale, from data collection preparation, technology training, field change survey, within the industry to switch painting, vector, attribute entry, area control, error checking and Integrated storage and many other aspects, corresponding to each link has a corresponding state operating norms and standards, in addition to the unified arrangement of Ministry of Land and the norms and regulations, in light of local circumstances and to consider future work needs, the region proposed additional requirements for their own; involving such a wide range of such vast quantities of work, it takes a lot of human and financial resources, only a few people or a department to rely on is very difficult to accomplish. County government leaders in charge as head of the counties as well as the leadership team can dispatch the relevant departments and the township government to strengthen leadership in order to ensure the smooth progress.
(2) the need to organize a high-quality team of professionals.
After 10 years, staff turnover and changes in institutional reform, the province and land departments of the older generation land survey team has been depleted, while the annual change of land in all parts of the investigation, but always partial, sporadic work, a comprehensive, systematic land survey control protocols and technologies, new recruits for the land front to say, really need to go through a thorough and comprehensive investigation of exercise and learning to change. Rural land management departments are fewer, on the one hand deployed in agriculture, forestry, water conservancy departments composed of technical backbone of technical strength, on the other hand may also consider borrowing agricultural school students the chance to practice, through technical training, organization 10 of each township professional team of several people, divided into three to four groups for two to three months to complete the field investigation work, to gain the initiative work.
(3) careful route carefully decided to build libraries and selection of the unit.
Database for entirely by the land department to bear its own technical staff, you can experience all of the companies are building a database to bear, but this is not the best way. Because the land department can not short of technical personnel familiar with the application of MAPGIS platform technology, building a database of norms and standards also need to practice and gradually master at work, and building a database workload is quite difficult, this, no experienced it may be difficult to imagine; Moreover, the personnel department of land have heavy daily work, can not put all their energy into this one work, all the way to land the departments themselves are likely to delay the progress of the project, the fatigue tactical, slow years not finish the task.
All contracted to the company's approach is also undesirable, because they lack the understanding of local conditions, flexibility to deal with difficult problems is difficult, requires the active support of local technical personnel; and purpose of the database setup is used, if the technology sector land backbone does not participate in the work of building a database, the application will be to create difficulties for the future.
The best option is to allow the company to bear most of the work, under the guidance of the company's technology to complete a small part of their work; this way, with the construction of libraries in close collaboration and communication unit commitment, in the process have grown and technology forces, and progress has also been protected.
Choose experience building libraries and library construction credible commitment unit is to ensure the progress and quality of the library building key. Can not just listen to Mrs. Wang, the justification offered to buy melons, the company's performance and reputation, actual inspection is necessary.
(4) needs some funding to ensure
Expenditure on construction of libraries vary, counties have the size, map points of difficulty, relatively speaking, a number of difficult mountains than the plains. But remove the software and hardware equipment, a county of 30-50 million is enough. The costs are incurred in the return to local land use fees paid special expenditure is reasonable and has legal, Land and Natural Resources, Province National Land Agency of the relevant documents have clear instructions and, of course need the local government and financial sectors leadership to do some note.
2. Dongying Why MAPGIS as building a database platform?
Dongying City Land Department after several years of investigation, the final choice MAPGIS as rural cadastral system building a database platform, first of all because MAPGIS have independent intellectual property in the best-made GIS, and is the certification by Ministry of Land and evaluation, recommended platforms, widely used in the country; Second, in the land to the company and the State Planning Institute of collaborative development of land use database system, combined with the national standards closely; Furthermore, the company has a strong advantage to technology development support, software can continuously upgrade, the performance can continue to improve.
3. Dongying Why was shot as building a database of image map base map?
Dongying City, Shandong Province as the first batch of pilot units of land survey, carried out the work as early as 85 years to 90 years the city's summary, it has been 10 years now, after years of radical change possible, the data error increases, the use maps and dilapidated, the establishment of detailed investigation of the significance of libraries is not very big, and difficult and costly. Our province has 95 years of surveying and mapping departments aerial, 96 harvest map, covering the province of 1:10000 orthophoto image map, make changes using the survey data can not only reduce the workload of foreign trade and supplementary, and can correct the previous years and supplementary errors. The three counties of Dongying City, proved as building a database application of the data base map, three months outside the industry six months to complete construction of library work, you can establish a new land-use database system, and can directly in Agricultural Land Classification, Land Development and Planning, land resource evaluation and reserve investment, and many work, play-reaching social benefits, land management, follow-up to save the human and financial resources.
4. The main survey of foreign trade mission to change what is?
Land use change survey of foreign trade missions short tone paint, a word: land administrative boundaries, land ownership boundaries, to kind of patch to verify and adjust the boundaries of painting.
For the sector due to administrative Kansas, the adjustment of the dispute dealt with land acquisition, land replacement and other reasons caused by the land administrative boundaries and land ownership changes on-site verification, and to border the two sides recognized legal entity or legal representative of the scene community, sign land border worthy husband alone or cadastral survey, cadastre management as a legal basis.
For as agricultural restructuring, land development and natural disaster causes damage to other land use changes, site plan approval to class spot border, polygon partition should be the village as a unit, a village adjacent map site The same map should be compiled for the same spot a map spot number, fill out the field investigation log; for the changed field measurements of the width of linear features, linear features filled form; for sporadic surface features within the polygons, the amount test area, according to surface features of patch fill in sporadic form; and supplementary site for the new surface features, rendering and supplementary draft.
When the actual work outside the industry can do is to record in detail the investigation into the Field Book, and outlined the draft, to be back inside only after the collation of data, fill out the form and to adjust the outcome of standard paint painted to change the base map on.
Foreign trade operations, the key is determining the correct stand point is to judge their current location on the seat-shaped graph, if erroneous stand point, you can not work, or position offset; followed by selection based on the obvious surface features and supplementary points If the right choice, not only can reduce the workload, but also to ensure accuracy.
5. Ortho-image map how changes to the investigation?
Ortho-image map used to make changes to it should be copying the first two surveys, one outside the industry as a working draft, a draft as dwell within the industry. Draft work outside the industry can get to use, and written sketches only to stay indoors and to avoid damage.
Ortho-image map for use tone painting and drawing using aerial photos to adjust the operating methods of the same, but the projection does not need to correct, no conversion scale, the former is more convenient, fast. Working outside in the indoor first fixed to the map folder on the draft plan, covered with a graphic film, painted with a pencil to transfer the administrative village boundaries and the large-scale linear features through the paint out. To the field in the village under the guidance of the wizard to transfer the contents of Drawing and painting in the drawing film. For small surface features or drawing film location not plotting the correct content, can be directly labeled with a color document image in orthographic sketches of work outside the industry.
A village outside the industry, drawn after the completion of transfer, which should sort out information of foreign trade, pre-draft work outside the industry code on patch number, and to draw the contents transferred to a work order to dwell on the base map. Ortho image base map for the work is grayscale, only the black line is difficult to distinguish different, so the development work and written specifications. Far from shooting images of the specific requirements of the base map of building a database dwell.
6. Ortho image base map of building a database dwell transfer painted requirements?
Land Use Database for the base map, is building a database of basic information, maps and written essential. To do a standard, unified, to improve the quality of the results, according to surveys of land use standard linear order and with reference to the following provisions:
1, and written linear and color:
Ditch: the blue solid line plotting the center of 0.2 mm;
Public Road: black single solid line;
Administrative circles: red dotted lines (County community: a cross point; rural community: two cross 2:00; village boundaries: three horizontal point);
Ownership industry: a black short-dashed line is zoned 2 mm, spacing 1 mm;
Rural roads: black solid line designated 5 mm, spacing 2 mm;
Land type community: red solid line;
Embankment dam: black single jagged line;
Agroforestry: the green solid line.
Second, note: the regular font, size uniformity, the same interval. Linear features to note on-line-like features on the top or left, but the big exception of linear features (note the internal spot in the chart). Notes should generally be perpendicular to the grid, or parallel to the grid, or the like along the direction of surface features, and should try to make it neat and beautiful. Oil symbol with "Well," said uniform font size, hash mark in the well below the horizontal, "Well," the word shall be the location of the center of the exact location of oil wells. Note the font should note the following:
Last Stage Control District Name: Red 5 words in italics;
Ownership Name: Black 5 words in italics;
Ditch Note: Blue words in italics small 5;
Polygon Note: Black 5 words in italics;
Highway Note: Black 5 words in italics.
3, and written requirements:
1. Accurate and written to be careful, do not drain well, not expand, not shrink, without distortion, legible, neat, annotation and symbols in the same direction, font size and spacing uniform.
2. Pains to depict the sequence: first, linear features can be, the order after the massive surface features. Linear features of the dwell to be the first river, road, after the state, the order of land tenure sector dwell; block surface features to from north to south, from west to east in the order, and to the village as a unit, each in turn polygons series serial number, in general, in order from left to right, top to bottom number, and pay attention to do, "Woods clear, pieces of pieces of clear."
3. Dwell should be strict, all plans on-line program must use a ruler or curve board, does not allow hand-free drawing situation. Dwell time must be carefully, carefully, does not allow for a large scratch, smear, we must cherish the original image, properly used, does not allow folded paper map, and note line program do not succeed, do not miss.
4. Cartographic generalization: Based on the theme of the map, uses, scale and mapping the geographical features of the geographical elements of each selected and summarized to reflect and even exaggerate the ground that the phenomenon of discarding some of the minor and inessential things and phenomena. For example, on the threshing field map, you can dwell a little expanded, reduced, etc., create a more standardized graphics, but all the administrative boundaries do not allow even the slightest human movement.
5. Subject area within the map and written profile can not be out of range.
Four settlements on the map:
It should be noted that all corners are right angles, not arcuate, and the red solid line closed, pay attention to include all housing, while not large-scale expansion of settlements.
Ownership units in small, difficult to note its name, the word in black italics on the 5th note neat spot in the outer edge of the map, along with the arrows indicate.
5, linear features of the plan:
1. Ditch the blue single-solid line; road into road ditch, said the general; several ditches, roads parallel to road-based journey, based on the ditch to ditch.
2. To ditch the guide to the main ditch, the ditch is not on the road, but as administrative boundaries to road center line, or ditch, road as the boundary between the two kinds of surface features when the plan must be.
3. Ditch, drainage, roads, woods and four parallel linear features, no administrative boundaries, ownership, sector or administrative sector ownership to ditch the center of the world, and expressed as a ditch, a forest; administrative sector not to drain center sector, administrative boundaries of linear features on both sides should be on the map.
4. Uniform coding of all linear features to ring that is not in brackets, such as 鈶?-77-10, 鈶?-63-4 so.
5. Across the township administrative divisions of large linear features should be unified name, its name or number directly to that number of patch: If the spillway River, ID recorded as "overflow River", not to pinyin, such as ring 鈶?-77-30 said; Yellow River to the "Yellow River", said instead of 鈶?hh said so and so.
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