| Technology Application |
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The Restoration of Barren Ecosystems and the Construction of Economic Forest in the Yangtze River Delta Economy District |
| SONG Zhi-hong 1,2,3， CHEN Hua 4， LI Xian-qing 1,2 |
| 1.State Key Laboratory of Coal Resources and Safe Mining， China University of Mining and Technology， Beijing 100083， China； 2.School of Resources and Safety Engineering， China University of Mining and Technology， Beijing 100083， China； 3.Armed Ploice Golden Branch 6， Zhengzhou 472000， China； 4. China Aero Geophysical Survey & Remote Sensing Center for Land and Resources， Beijing 100083， China |
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Abstract Due to human activities and natural disturbance, the barren hills as a typical degradation ecosystem are
constantly increasing. On the basis of geological environment remote sensing survey in eastern China，the authors have
found that in the Yangtze River Delta Economic District there exist extensive barren hills with miscellaneous heaths and
bushes under no management， which are mainly distributed in most areas of Zhejiang and north and southwest parts of
Jiangsu Province. According to the statistical information of the landscape，there exist 43 800 km2 barren hills in
Zhejiang Province. Field investigation reveals that at least 1/3 of hilly vegetation，i.e., about 14 600 km2 (close to the
current area of Beijing) of such vegetation, has been severely damaged， unattended and in a state of natural recovery. If
the economic forest-building is carried out，the barren hills can be restored, and the tremendous economic value can be
achieved as well.
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| Keywords
Remote sensing
Integrated prognosis
Ore-controlling factor
Ore-prospecting model
Digitalanalysis
Analysis and evaluating system
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Issue Date: 13 November 2010
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2010,
Vol. 22
