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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (2): 412-418    DOI: 10.7522/j.issn.1000-694X.2013.00057
Ecology and Economics     
A Test on the Computing-model-aided Photograph-Reading Method for Conveniently Measuring the Vegetation Cover in the Permafrost Area along the Qinghai-Tibet Engineering Corridor
GONG Da-xin1, YUN Han-bo2, DOU Xue-cheng3, WU Qing-bai2, LIU Yong-zhi2, SUN Zhi-zhong2, CHEN Hao4, RUI Peng-fei2, LI Guo-chen5
1.College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China;
2.State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
3.College of Economics and Management, Gansu Agricultural University, Lanzhou 730070, China;
4.State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
5.Golmud Railway Administration of Qinghai-Tibet Railway Corporation, Golmud 816000, China
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Abstract  

Vegetation cover may vary with climate change in some degree. The varitioan of vegetation cover was therefore regarded as a primary index for indicating ecological enviornmental change, and the accuracy of the measurement on the vegetation cover change is essential to forecasting ecological environmental changes resonably. By taking photographs of the vegetation in the permafrost area along the Qinghai-Tibet Engineering Corridor, then reading and analyzing the photos with a computing model, we achieved the caverage of the vegetation. At the same time when the photos were taken, we estimated the coverage by simple eye observing and cross eye observing. The result of comparison among the three methods showed that the coverage gotten by the computing-model aided method could be linearly regressed to that by cross eye observing mehtod (R2≥0.96), suggesting that the computing-model-aided photograph-reading method could be employed to monitor the variation of the vegetation in the permafrost area along the Qinghai-Tibet Engineering Corridor reliably and conviniently, sopposed the coverage obtained with the cross eye observing method was the actual coverage.

Key words:  vegetation cover      Qinghai-Tibet Engineering Corridor      observing mehods     
Received:  23 August 2012      Published:  25 September 2012
ZTFLH:  Q948.151  

Cite this article: 

GONG Da-xin1, YUN Han-bo2, DOU Xue-cheng3, WU Qing-bai2, LIU Yong-zhi2, SUN Zhi-zhong2, CHEN Hao4, RUI Peng-fei2, LI Guo-chen5. A Test on the Computing-model-aided Photograph-Reading Method for Conveniently Measuring the Vegetation Cover in the Permafrost Area along the Qinghai-Tibet Engineering Corridor. JOURNAL OF DESERT RESEARCH, 2013, 33(2): 412-418.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00057     OR     http://www.desert.ac.cn/EN/Y2013/V33/I2/412

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