QIAO Hong-bo,YANG Ya-fei,WANG Bao-hai,et al.Hyperspectral Features of the Three Locoweed in Tibet[J].HEILONGJIANG AGRICULTURAL SCIENCES,2012,(11):146-148.
西藏三种疯草高光谱特征比较
- Title:
- Hyperspectral Features of the Three Locoweed in Tibet
- 文章编号:
- 1002-2767（2012）11-0146-03
- Keywords:
- locoweed; reflectance; differential spectrum
- 分类号:
- S812.6
- 文献标志码:
- A
- 摘要:
- 为研究西藏地区疯草光谱特征，使用ASD HandHeld野外便携式光谱仪测量茎直黄芪、毛瓣棘豆和冰川棘豆3种疯草冠层光谱反射率，比较分析其光谱特征。结果表明：3种疯草具有植被的光谱曲线特征，在552，670和760 nm波段处差异显著。对原始光谱进行一阶微分处理，3种疯草红边斜率存在极显著差异。研究结果可为利用遥感技术大面积监测疯草空间分布提供理论依据。
- Abstract:
- In order to research the spectral characteristics of locoweed in Tibet,canopy spectral reflectance of Astragalus strictus,Oxytropis sericopetala and Oxytropis glacialis were measured with ASD field Hand-Held spectroradiometers.The results showed that the three kind of locoweed had the same spectral curve characteristics with vegetation,but they were great different during wave band 552,670 and 760 nm.Meanwhile,the first order differential of their original spectrum showed that differences of red edge slope between those three kinds of locoweed were very significant.This research provided a theory evidence for monitoring spatial distribution of locoweed in large area with remote sensing technology.
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备注/Memo
基金项目：农业部公益性行业专项资助项目(201203062)