Visualization of overall urban and rural develop-ment – Atlas of Chengdu land resources

Haijing Zhang*, Fu Ren**, Qingyun Du*, Zhiyuan Zhao*

*School of Resources and Environmental Science, Wuhan Univer-sity, 129 Luoyu Road, Wuhan 430079, China; ** Key Laboratory of Geographic Information System, Ministry of Education, Wuhan University, 129 Luoyu Road, Wuhan 43007, China

Abstract. Atlas of Chengdu land resources began in 2012 with the second national land survey data, which reflects the new achievements of overall urban and rural development in the field of land resource management of Chengdu. A variety of indicators for land resource management is visualised with the help of thematic maps. The Atlas is oriented as a whole to the localization both work map and achievements demonstration so as to contain comprehensiveness to reflecting management results and scientificalness to providing decision support. The Atlas is typical of numerous and aimed thematic content, emphasizing concision and brilliant colors in symbol design.

Keywords: atlas, Chengdu, land resource management, thematic cartography

1. Introduction Chengdu, lying at 30.67°N and 104.06°E and situated in Sichuan district of China, located in the Sichuan Basin. It con-sists of Sichuan Plain in the middle, Longmen mountains on both sides, and parts of Chuanzhong Hills on the northwest, and cov-ers an area of approximately 13277 km2.

Atlas of Chengdu land resources was compiled from 2012, as the requirements of the second land survey in Chengdu and the general plans for the land compiled maps, combining the

progress of the Chengdu “one map”, based on the land resources management data of Chengdu since the city and countryside inte-gration development in 2003, reflecting the newest land use sta-tus and the results of the urban and rural planning and land de-velopment.

Geostatistics is a spatial statistical technique that can be used to assess and represent the distribution of concentration over space and time (Rouhani and Wackernagel, 1990).

2. Method

2.1.Atlas conceptThe purpose of compiling this Atlas lies in that：a. centrally

reflect the integrated achievement of advancing the institution innovation of the land resources management and ensuring the experimental zone construction of overall urban and rural devel-opment; b. urgently need a macro-decision basis of the land re-sources management and the referenced data of the scientific research by the governments, managers and experts; c. accord with the current increasingly rising developing trend of atlas compilation of the provinces, districts and municipalities in our country; d. offer extensive data by the completion of the second land survey , the general plans for the land and “one map” con-struction.

The Atlas is oriented as a whole to the localization both work map and achievements demonstration so as to contain com-prehensiveness to reflecting management results and scientifical-ness to providing decision support. Therefore, special attention shall be paid to the content design to make the themes coherent that accord with content unfolding model of general atlas and to satisfy the land management need that accord with the working process of the land management practice. Especially, by chang-ing over programming series with management series ——Pro-gram first management then——the Atlas structure fully embody the newest achievments and practice significances of land man-agement various work, closely connected with theme of the over-all urban and rural development.

2.2. Construction and Map Sheets The Atlas consists of 5 units: preface series, striograph se-ries, land resources foundation series, land resources program-ming series, and land resources management series, about 160 maps, detailing the themes in terms of the basic information of Chengdu city, covering the topics such as land use, land plans, new rural construction, post-disaster reconstruction, and so on.

Map Series Map Title Counts

Preface Series Geographical Position

Administrative Division

Transport

3

Terrain and Landform

Geology

Soil

3

Historical Evolution 1

Striograph Series Map Sheet Index 1

Administrative District Striograph 16

Division Striograph 60

Land Resources Foundation Series

Present Land-Use Map 15

Slope Grade For City Cultivated Land 1

Land Use Structure 1

Mineral Resources Distribution 1

Development and Utilization Of Mineral Resources 1

Geological Environment 1

Land Resources Programming Series

The Comprehensive Planning Of Land Use 15

Basic Farmland Protection Planning 1

Construction Land Planning 1

Special Planning Of Comprehensive Land Management

1

Functional Area Planning 1

Industrial Planning 1

Mineral Resource Planning 1

Special Planning Of Geological Disaster Prevention and Control

1

Land Planning In The Disaster Reconstruction 1

The New Countryside Construction 1

Land Resources Management Series

Land Expropriation/Land Requisition 1

Land Supply 1

Land Price/Value 5

Agricultural Land Grading Results 2

Intensive and Economical Land Use 1

Arable Land/Cultivated Land Protection Fund 1

Comprehensive Land Management/Consolidation/Renovation

1

Land Law Enforcement/Law Enforcement On Land 1

Disaster Reconstruction 1

The Characteristic Achievement Of Urban and Rural Land Resources Management

1

The New Countryside Construction Achievement 1

Land Economy 1

Ecological Environment Protection 1

Table 1. The map series and map sheets of the Atlas.

2.3. The appearance and scales In the appearance design, the Atlas, not limited to the de-sign approach of the traditional thematic atlas, emphasizes the-matic content by improving elements more designed and recog-nizable, combining use of various colors and cartographic meth-ods, to greatly enhance aesthetic effect.

In practical work, maps of different scales have different functions, particularly the management process containing both the details and the overall situation. To ensure the scientifical-ness and coordination, the Atlas is compiled by octavo, corre-sponding to the data and the practical situation, applying map scales series for the themes respectively:1:460000, 1:600000, 1:800000,1:1000000,and 1:1300000. In layout design, a unified and not limited format is employed to leave more room and flexi-bility for content construction, so that the thematic contents will be highlighted to the optimum as far as the layout is concerned.

Figure 1. The sample of the format.

2.4.Map designThe Atlas is typical of numerous and aimed thematic content,

emphasizing concision and brilliant colors in symbol design, iden-tifying element types by different hues, full of vivid labels, bubble symbols, representation symbol, and so on.

Figure 2. The design of the signal samples.

3. Maps presented

Figure 3. The Comprehensive Planning Of Land Use

Figure 4. Agricultural land grading results

Figure 5. Disaster reconstruction

4. Conclusion In a new round of cartography development, the Thematic

Atlas’s individualization and applicability are highlighted, the concept of customization is deeply rooted in the process of the Atlas design and manufacture. In the age of webGIS application, the Thematic Atlas can learn some pragmatic strategies of map applications, on the other hand, it will be developing and everlasting project to return to the traditional maps and atlases, achieve more refined map language transmitting spatial information.

ReferencesHuang Rentao, Pang Xiaoping (2003), Thematic map cartography,

Wuhan University Press

Rouhani S, Wackernagel H(1990) Multivariate geostatistical approach to space-time data analysis.WaterResourRes26(4):585–591