| 塔里木河下游林地树冠QuickBird影像信息提取与分析 |
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| 引用本文： | 万红梅,李霞,董道瑞,刘欢. 塔里木河下游林地树冠QuickBird影像信息提取与分析[J]. 西北植物学报, 2011, 31(9): 1878-1885 |
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| 作者姓名： | 万红梅 李霞 董道瑞 刘欢 |
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| 作者单位： | 新疆农业大学草业与环境科学学院,乌鲁木齐,830052 |
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| 基金项目： | 国家自然科学基金(40961027); 新疆草地资源与生态实验室资助 |
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| 摘 要： | 基于QuickBird影像,采用人机交互方法提取了塔里木河下游不同离河距离胡杨、柽柳树冠信息,以实测数据为真值检验遥感提取冠幅、郁闭度及混交比精度;并建立了胡杨冠幅、胸径、树高关系模型,为塔里木河流域植被调查、生物量估测及生态恢复评价提供依据和方法借鉴.结果表明:胡杨、柽柳冠幅提取精度分别为84.00%、76.24%;林分郁闭度、混交比提取精度分别为69.45%、66.96%.基于实测数据建立的冠幅与胸径、胸径与树高模型相关显著(R2>0.8,P<0.01);根据遥感解译因子反演胡杨胸径、树高的平均精度分别为80.33%、89.25%.
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| 关 键 词： | QuickBird影像 人机交互 冠幅 信息提取 相关分析 塔里木河下游 |
Abstraction and Analysis of Tree-crown of Forest Land Based on QuickBird Image in the Lower Reaches of Tarim River |
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| WAN Hong-mei,LI Xia,DONG Dao-rui,LIU Huan. Abstraction and Analysis of Tree-crown of Forest Land Based on QuickBird Image in the Lower Reaches of Tarim River[J]. Acta Botanica Boreali-Occidentalia Sinica, 2011, 31(9): 1878-1885 |
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| Authors: | WAN Hong-mei LI Xia DONG Dao-rui LIU Huan |
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| Affiliation: | WAN Hong-mei,LI Xia,DONG Dao-rui,LIU Huan(The College of Pratacultural and Environmental Science,Xinjiang Agricultural University,Urumqi 830052,China) |
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| Abstract: | Using the method of man-computer interaction to Abstract and analyze the crown of Populus euphratica and Tamarix ramosissima at different distance from the stream channel based on the high resolution remote sensing QuickBird in the lower reaches of Tarim River.According to the field investigation data,we tested the interpretation accuracy of tree-crown,canopy closure and mixed ratio,and established the model between crown,diameter at breast height and tree height.The results show that:crown interpretation a... |
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| Keywords: | QuickBird image man-computer interaction tree-crown information distraction correlation analysis lower reaches of Tarim River |
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