| 不同品种水稻群体冠层光谱特征比较研究 |
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| 引用本文： | 杨长明,杨林章,韦朝领,丁超尘. 不同品种水稻群体冠层光谱特征比较研究[J]. 应用生态学报, 2002, 13(6): 689-692 |
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| 作者姓名： | 杨长明 杨林章 韦朝领 丁超尘 |
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| 作者单位： | 1. 中国科学院南京土壤研究所,南京,210008
2. 安徽农业大学,合肥,230036 |
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| 基金项目： | 国家自然科学基金 ( 39470 40 7)，安徽省“九五”科技攻关资助项目 ( 96 110 0 1) |
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| 摘 要： | 应用分光光谱辐射仪对不同株型水稻品种的冠层光谱辐射能进行观测和计算，比较分析了不同冠层群体光谱分布特征的差异性。结果表明，不同株型水稻品种群体冠层内太阳光谱辐射反率α，透射率β和吸收率τ及消光系数K存在明显差异，尤其以蓝光辐射（400－510nm)差异最为显著。在水稻生长后期，这些差异表现更为突出。
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| 关 键 词： | 品种 水稻 冠层 光谱特征 比较研究 作物群体 |
| 文章编号： | 1001-9332(2002)06-0689-04 |
| 修稿时间： | 2001-02-16 |
Canopy spectral characteristics of different rice varieties |
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| YANG Changming ,YANG Linzhang ,WEI Chao-ling ,Ding Chaochen. Canopy spectral characteristics of different rice varieties[J]. The journal of applied ecology, 2002, 13(6): 689-692 |
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| Authors: | YANG Changming YANG Linzhang WEI Chao-ling Ding Chaochen |
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| Affiliation: | Nanjing Institute of Soil Sciences, Chinese Academy of Sciences, Nanjing 210008. chmyang@263.net |
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| Abstract: | By using spectroradiameter, canopy spectral characteristics such as reflection rate (alpha), absorption rate (tau), transmission rate (beta), and extinction coefficient(K) of different rice varieties were analyzed and compared. The results showed the canopy spectral characteristics were significantly different among different rice varieties, especially under blue radiation (400-510 nm). In addition, these dissimilarities were more obvious in the late stage of growth period. |
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| Keywords: | Rice Canopy Spectral characteristics. |
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