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牛心朴子的光谱差异特征参量分析

常伟, 刘咏梅, 庞国伟, 高原, 王德军

常伟, 刘咏梅, 庞国伟, 高原, 王德军. 牛心朴子的光谱差异特征参量分析[J]. 草业科学, 2016, 10(11): 2165-2172. DOI: 10.11829/j.issn.1001-0629.2016-0059
引用本文: 常伟, 刘咏梅, 庞国伟, 高原, 王德军. 牛心朴子的光谱差异特征参量分析[J]. 草业科学, 2016, 10(11): 2165-2172. DOI: 10.11829/j.issn.1001-0629.2016-0059
Wei Chang, Yong-mei Liu, Guo-wei Pang, Yuan Gao, De-jun Wang. Analysis of spectral difference feature parameters of Cynanchum komaroviii[J]. Pratacultural Science, 2016, 10(11): 2165-2172. DOI: 10.11829/j.issn.1001-0629.2016-0059
Citation: Wei Chang, Yong-mei Liu, Guo-wei Pang, Yuan Gao, De-jun Wang. Analysis of spectral difference feature parameters of Cynanchum komaroviii[J]. Pratacultural Science, 2016, 10(11): 2165-2172. DOI: 10.11829/j.issn.1001-0629.2016-0059

牛心朴子的光谱差异特征参量分析

基金项目: 

农业部公益性行业专项&#x02014

&#x02014

草原主要毒害草发生规律与防控技术研究(201203062)

摘要: 牛心朴子(Cynanchum komarovii)是分布在西北干旱半干旱荒漠草原的主要毒害草之一。近年来,牛心朴子快速蔓延对当地畜牧业发展和草原生产力的影响日益严重。采用内蒙古阿拉善左旗典型样区内牛心朴子和其它沙地植物的野外实测光谱,通过叶片光谱、冠层光谱及群落样方光谱的对比分析,探讨牛心朴子与其它沙地植物的光谱差异性。结果表明,在350-2 500 nm波段,牛心朴子叶片的光谱反射率均高于花的反射率,花的反射光谱未出现明显的蓝谷和绿峰。沙地背景对牛心朴子冠层光谱的影响强烈,冠层光谱是沙地与牛心朴子叶片光谱的综合表征。最大的红边斜率以及800-1 300 nm明显的高反射率是牛心朴子与其它沙地植物冠层光谱的主要差异特征。根据不同盖度牛心朴子群落样方光谱的变化规律,选取4个特征参量与群落盖度进行线性回归分析表明:利用红边斜率进行群落盖度反演的效果最好,R2为0.781 5。本研究可为牛心朴子分布遥感监测及其盖度定量反演提供科学依据。

 

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  • 收稿日期:  2016-01-25
  • 发布日期:  2016-11-19

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