[1]周靖靖,刘金良,郭睿妍,等. 纹理步长对刺槐林叶面积指数估算的影响[J].西北林学院学报,2018,33(2):28-34.[doi:10.3969/j.issn.1001-7461.2018.02.05]
　ZHOU Jing-jing,LIU Jin-liang,GUO Rui-yan,et al. Effects of Displacement on LAI Estimation of Black Locust Plantations Based on the Texture Values from Quickbird Satellite Imagery[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(2):28-34.[doi:10.3969/j.issn.1001-7461.2018.02.05]
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 纹理步长对刺槐林叶面积指数估算的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第2期
页码:
28-34
栏目:
出版日期:
2018-03-31

文章信息/Info

Title:
 Effects of Displacement on LAI Estimation of Black Locust Plantations Based on the Texture Values from Quickbird Satellite Imagery
文章编号:
1001-7461(2018)02-0028-07
作者:
 周靖靖1; 刘金良2; 郭睿妍1; 罗杰1; 周欢3; 梁杰3; 赵忠2*
 （1.华中农业大学 园艺林学学院/湖北省林业信息工程技术研究中心， 湖北 武汉 430070；2.西北农林科技大学 林学院/陕西省林业综合重点实验室，陕西 杨陵 712100；3.湖北省太子山林场管理局，湖北 荆门 431800）
Author(s):
 ZHOU Jing-jing1; LIU Jin-liang2; GUO Rui-yan1; LUO Jie1; ZHOU Huan3; LIANG Jie3; ZHAO Zhong2*
 （1.College of Horticulture and Forestry Sciences / Hubei Engineering Technology Research Center for Forestry Information,Huazhong Agricultural University,Wuhan,Hubei 430070,China; 2.College of Forestry/ Shaanxi Comprehensive Key Laboratory of Forestry,Northwest A＆F University,Yangling,Shaanxi 712100,China; 3.Taizishan Forest Management Bureau of Hubei Province,Jingmen,Hubei 431800,China)
关键词:
 ; 步长; 纹理; 叶面积指数; 快鸟影像; 刺槐林
Keywords:
 ; displacement;  texture parameters;  leaf area index;  Quickbird imagery;  black locust
分类号:
S792.27
DOI:
10.3969/j.issn.1001-7461.2018.02.05
文献标志码:
A
摘要:
 以渭北地区刺槐林为研究对象，通过计算不同步长Quickbird影像的纹理参数，建立野外实测刺槐林叶面积指数（LAI）与纹理参数的线性回归方程，比较纹理步长对刺槐林LAI估算精度的影响，遴选出估算刺槐林LAI的最佳纹理步长。结果表明：对于角二阶矩阵（ASM）和熵（ENT），LAI估算精度随着步长的增加变化不大；对于对比度（CON）、非相似度（DIS）和同质性（HOM），LAI估算精度随着步长的增加而明显下降，步长为3时，r2达到最大值（分别为0.51、0.56和0.59）；对于相关性（COR），在0°和135°角度下，LAI估算精度随着步长的增加而降低，在45°和90°角度下，步长对LAI 估算精度无明显影响；对于变化量（VAR），步长对LAI精度影响不大。
Abstract:
 The black locust plantations in Weibei area were chosen as the research objects.Texture features with different displacement of Quickbird image were calculated.A simple linear model was established between field measurement of LAI and texture parameter to compare the effect of texture displacement on the accuracy of LAI of black locust plantations and to select the optimum displacement of LAI estimation.The results indicated that the accuracy of LAI estimation was less affected by displacement for Angular Second Moment (ASM) and Entropy (ENT); for Contrast (CON),Dissimilarity (DIS) and Homogeneity (HOM),the accuracy of LAI estimation significantly decreased with the increase of displacement.When displacement was set as 3,the r2 value reached the maximum value (0.51,0.56 and 0.59 respectively); for Correlation (COR),the accuracy of LAI estimation decreased with the increase of displacement when the orientation was set as 0° and 135°.The displacement had no effects on the accuracy of LAI estimation when the orientation was 45° and 90°.Displacement had no effects on LAI estimation for Variance (VAR).

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备注/Memo

备注/Memo:
 收稿日期：2017-05-07修回日期：2017-06-18
基金项目：中央高校科研业务费专项资金资助项目(2662015BQ009、2662016PY039)；国家自然科学基金项目(41501365)。
作者简介：周靖靖，女，博士，讲师，研究方向：林业遥感。E-mail:hupodingxiangyu@mail.hzau.edu.cn
*通信作者：赵忠，男，博士，教授，研究方向：森林培育理论与技术。E-mail：zhaozh@nwsuaf.edu.cn
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