Achievements introduced
The national territory resources environment space database
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National resources environmental remote sensing database
(1) national resources environmental remote sensing database content
The Chinese resources environmental remote sensing database in the nationwide scale the first use ˇ°the entire digital workˇ± the way, with more than 500 scenery newest TM phantom, carries on according to 1: 100,000 extremely covers national the land resource investigation charting, the process later period image data, the spatial data, the attribute data and the ecology background data integration, production China large-scale (1: 100,000) the resources environment database, in the database has covers national the TM remote sensing phantom(county), 1: 100,000 land resource use (is divided county), the path and the river system (is divided province), the county level administrative demarcation line and the landform, the soil texture, the temperature and the humidity ecology background data stratification plane, available in the Chinese wide range remote sensing estimation, the crops growing trend monitor, the flooding disaster monitor and the appraisal, the land resource plan and the appraisal and the place study scientific research and so on is various.
(2) Nation land resource and the ecological environment background data analysis model
a. nation land resource spatial distribution influence factor model analysis and the land resource region combines
b. nation land utilization degree generalized analysis model [China land utilization composite index chart]
c. farming and the farming reserve resources ecological environment background quality appraisal model [national various provinces, city, autonomous region farming rank constitution diagram]
d. nation land resource ecological environment quality synthetic evaluation model [China land resource ecological environment comprehensive evolution map]
(3) formed has covered national resources environmental remote sensing monitor ability and the background data foundation
forms through this project has distributed in Beijing and each big area resources environmental remote sensing macroscopic investigation and the dynamic monitor technology system, the technical team, and constituted in this data foundation the district completes the national remote sensing monitor task the network pattern, at present put the dynamic monitor operation.
China land utilization change remote sensing space and time information research (electronic atlas)
ˇˇ973 project synopses
The country significant basic research manages which by Chinese Academy of Science resources environmental science data central Director Liu Jiyuan plans (2002CB412500) Chinese land ecosystem carbon cycle and the actuation mechanism research, through to in the carbon cycle key scientific question development work, obtains the new science innovation and the breakthrough, directly provides the scientific basis for our country's ecological environment construction and the ecosystem management plan, Participates in the UNFCCC negotiations and the formulation possible land ecosystem for our country to increase collects the strategy to provide the data and the technical support. The main research key scientific question includes:
1) What does the land ecosystem carbon collect the biogeography mechanism which/the source space and time pattern forms is? How to reduce the low-carbon to collect/the source strength appraisal uncertainty?
2) What the land ecosystem carbon cycle regulative mechanism and is the human factor actuation mechanism? How differentiates the natural factor and the human factor in the actuation carbon storehouse change function and the contribution? How appraises the ecosystem management measure to collect the cost benefit to the ecosystem carbon which the function the influence and increases collects? How appraises long-enduring, divulging and between the carbon storehouse which the land carbon collects the cycle period?
3) What is the land ecosystem carbon cycle biological process to the climatic change response and the adaptation mechanism? How will know under the future climate scene the ecosystem carbon cycle characteristic?
4) How 4) does the land utilization way switching process affect the land ecosystem carbon storehouse/carbon cycle process? How quantitative evaluation land utilization/land covering change to land ecosystem carbon cycle influence?
5) How solves the criterion transformation problem, how realizes the carbon cycle dynamics model and the remote sensing inversion model coupling?
6) What 6) will the Chinese land ecosystem carbon collect/the source historical process and the future scene is? The carbon collects the potential to have in a big way?
7) How the river mouth and the neighbor sea area carbon origin and do preserved ability calculate? How much the rivers carbon flux the contribution which/collects to the land carbon source?
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