1st national geographic conditions census of china and · 2018-02-12 · entity of road、water...
TRANSCRIPT
1st National Geographic Conditions Census of China
and Its Applications in Poverty Alleviation, Food Security
and Sustainable Development
Dr. ZHOU Xu
National Geomatics Center of China
History
• Oct. 2010, National Administration of Survying, Mapping
and Geoinformation(NASG) started to propose the
program
• Sep.2011,the Sate Council approved the proposal
• Sep.2012, the program initiated with fund from center
government
• Mar. 2013, the Sate Council claimed to conduct 1st nation-
wide geographic conditions census
Imagery data processing
Information Extract
Field Check Data Editing and compiling
Overview of the Process
总体过程
More than 50,000 technicians spend 3 years from 2013 to 2015 , and ¥8.6 Billion, capturing data. We constructed a integrated database and published the report in Apr. 2017
All d
ata
results
:302
.9 T
B
所有最终数据成果总量
Land Cover Data
地表覆盖数据
Feature Data
地理要素数据
Geotagged Photo
解译样本数据
Spatial Metadata
空间元数据
>260 million parcels 超过2.6亿图斑
Entity of road、water body and
geographic unit, >25 million 道路、水体、地理单元实体,超过2500万个
Geotagged Photo,2.95 million, 10.39 TB
Tracks of field check: 10.62 million km 其中外业核查路线超过1000万千米
Terrain data
地形数据
Ortho-imagery
正射影像 90% resolution best than 1m,280 TB 其中90%的影像分辨率优于1米
DEM、Slope、Aspect: 10.79 TB 包括高程、坡度、坡向等数据
>320GB
the 1st National Geographic Conditions Census
第一次全国地理国情普查主要成果
Data Sources 数据源 Satellites Data type Spectral(nm) Band No. Res.(m) Num. of Bands
WorldView-1 panchromatic 400-900 0.5 1
WorldView-2
panchromatic 450-800 0.5 1
multispectral
450-510(蓝) 1
1.84 4 510-580(绿) 2
630-690(红) 3 770-895(红外1) 4
QUICKBIRD
panchromatic 610-720 0.61 1
multispectral
450-520(蓝) 1
2.44 4 520-600(绿) 2
630-690(红) 3
760-900(近红外) 4
SPOT5
panchromatic 490-690 2.5 1
multispectral 490-610(绿) 1
10 3 610-680(红) 2
780-890(近红外) 3
SPOT6
panchromatic 455-745 1.5 1
multispectral
455-525(蓝) 1
6 4 530-590(绿) 2
625-695(红) 3
760-890 (近红外) 4
ZY-3
panchromatic 500-800 2.1 1
multispectral
450-520(蓝) 1
6 4 520-590(绿) 2
630-690(红) 3
770-890(近红外) 4
IKONOS
panchromatic 450-900 1 1
multispectral
450-520(蓝) 1
4 4 510-600(绿) 2
630-700(红) 3
760-850(近红外) 4
GeoEye-1
panchromatic 450-800 0.41 1
multispectral
450-510 (蓝) 1
1.65 4 510-580 (绿) 2
655-690 (红) 3
780-920 (近红外) 4
pléiade-1A/1B
panchromatic 480-830 0.5 1
multispectral
430-550(蓝) 1
2.0 4 490-610(绿) 2
600-720(红) 3
750-950(近红外) 4
And k
inds o
f dig
ital a
eria
l photo
data
Sat.
Aerial Aerial
Aerial
Aerial
Data Results Sample: Land Cover Data 数据成果实例:地表覆盖数据
High resolution imagery data
Crops
Woods
Bulding
s
Roa
d
Garden
Grass
wate
r
Building
site
Classification system for land cover
地表覆盖分类系统
8
No. 1st level class 2nd level class 3rd level class
01 Crops 耕地 2 2
02 Garden 园地 7 11
03 Woods 林地 8 12
04 Grass 草地 2 8
05 Buildings 房屋建筑(区) 5 10
06 Road 道路 2 2
07 Structures 构筑物 8 19
08 Disarranged 人工堆掘地 4 14
09 Bared 裸露地表 5 5
10 Water 水域 2 4
总计 10 45 87
3 levels, 1st level: 10 ,2nd level: 45 ,3rd level: 87。
Basins and Rivers
Feature Data:Water 地理要素数据:水系
Railways and roads
Feature Data:Transportation 地理要素数据:交通
Counties Towns Villages Residential sites
Feature Data:Geographic Units 地理要素数据
Following work: Geographic Conditions Monitoring
持续工作:地理国情监测
• Monitoring 监测
– To update the data annually since 2016 每年数据更新
– Data source: 2 meters imagery data for the whole
country, better than 1 meter imagery data for about 2
million square km frequently changing area
– 全国使用2米分辨率影像,重点区域采用由于1米分辨率的影像
• Application 应用
– To set up a geographic computing center 建立云计算平台
– To provide online analytical processing service 提供在线
分析服务
– To develop derived data products 衍生数据产品开发
Application in Poverty Alleviation
Distribution of the poor
Application in Poverty Alleviation
Information of poor individuals
Planning of
relocating the poor
Application in Poverty Alleviation
development-orientated
poverty reduction
就地开发扶贫
Application in Poverty Alleviation
Monitor the progress of developing
Application in food security management
• Based on the data, every year we can get the
correct area of planted land, and the structure
of the planted crops.
• According to the data, the government can get
accurate production to make decision on food
security management
country level applications in Sustainable Development
• Ministry of Environment Protection
– nature reserves management
– delineation of ecological area borders
• National Bureau of Statistics
– natural resources balance sheet,used for performing
audits on officials activities when they leave office
• Ministry of Housing and Urban-Rural development
– Evaluation of urban planning implementation
– Polluted water treatment in urban area
• Other Ministries
– plans coordination and Integration
Overlay on our data to fix the
conflicts
Conflicts between plans
Urban and Environment planning
Land use and forestry planning
Land use and Urban planning
Urban and Farmland planning
plans coordination
Thanks!