地形对大光斑激光雷达森林回波影响研究

庞勇; 李增元; Sun Guoqing; Michael Lefsky; 车学俭; 陈尔学

地形对大光斑激光雷达森林回波影响研究

1.
中国林业科学研究院资源信息研究所, 北京　100091
2.
马里兰大学地理系, 马里兰　20742, 美国
3.
科罗拉多州立大学森林、草地与流域系, 科罗拉多　80523, 美国
基金项目:
国家自然科学基金项目( 30230420 ) 、( 40601070 ) 、国家863 计划课题( 2002AA133050 )和中国林业科学研究院基金项目(2004Z04)支持

Effects of Terra in on the Large Footpr in t L idarWaveform of Forests

1.
Institute of Forest Resource Information Techniqus, CAF, Beijing　100091, China
2.
Department of Geography, University of Maryland, CollegePark, MD　20742,USA
3.
Department of Forest, Range andWatershed Stewardship, Colorado State University, Fort Collins, CO　80523, USA

摘要: 利用三维激光雷达森林回波波形模型模拟了地形对波形的影响,并用ICEsat GLAS的数据对模拟结果进行了验证。结果表明坡度对大光斑激光雷达波形影响较大,随着坡度的增大,地面回波和树冠回波都展宽,波形长度也随之增加,同时地面的波峰和植被的波峰值都降低,来自地面的回波明显减少,并逐渐与靠近地面的回波发生信息混叠。鉴于二者的关系呈近似线性正相关,在实际的森林参数反演中可望通过减去一个含有坡度或地形起伏度的因子进行地形效应纠正。
- 地形
- / 大光斑激光雷达
- / 森林回波波形
- / ICEsat GLAS
Abstract: The large footp rint lidar has demonstrated its great potential for accurate estimation ofmany forest parameters. As the lidarwaveform is a record of return signal as a function of time from sensor to target, the terrain withinlidar footp rintwill affect the waveform through changing the distance of target to sensor and make effective footp rintarea larger. This paper simulated the effects of terrain on large footp rint lidarwaveform using a three dimensional lidar waveform model from forest. The analysis of ICEsat GLAS laser2b data ofNortheast China showed the same phenomena with simulated results. The results showed that both of the ground return signals and vegetation return signals were widened and the peak decreased with slope increasing. The return singles began earlierwith slope increasing. Meanwhile, the slope angle from the signal beginning to first peak of the waveform decreased. These two phenomena caused the error in detecting signal beginning and the following forest height estimation. The recorded lidarwaveform would contain false vegetation peak at certain slope level. The relationship between waveform length andterrain slope was near linear. So the effects of terrain on lidarwavefrom could be corrected by subtracting a factor ofslope or terrain index.
- terrain
- / large footp rint lidar
- / waveform from forests
- / ICEsat GLAS

[1]	Sun G, Ranson K J. Modeling lidar returns from forest canop ies[J].IEEE Transactions on Geoscience and Remote Sensing, 2000, 38:2 617～2 626
[R], NASA’s Goddard Space Flight Center, 2000
[3]	MatsNilsson. Estimation of tree heights and stand volume using anairborne lidar systems[J]. Remote Sensing of Environment, 1996,56: 1～7
[R]. NASA’s Goddard Space Flight Center, 1998
[5]	Means J E, Acker S A, Harding D J, et al. Use of large-footp rintscanning airborne lidar to estimate forest stand characteristics in thewestern cascades of Oregon [J]. Remote Sensing of Environment,1999, 67: 298～308
[6]	Popescu S C, Wynne R H, Nelson R F. Estimating p lot-level treeheightswith lidar- local filteringwith a canopy-height based variablewindow size [J]. Computers and Electronics in Agriculture, 2002,37: 71～95
[7]	LefskyM A, Harding D, Cohen W B, et al. Surface lidar remotesensing of basal area and biomass in deciduous forests of EasternMaryland, USA[J]. Remote Sensing of Environment, 1999, 67: 83～98
[8]	Drake J B, Dubayaha R O, Clark D B, et al. Estimation of trop icalforest structural characteristics using large-footp rint lidar [J]. Remote Sensing of Environment, 2002, 79: 305～319
[9]	Lim K, Paul Treitz, IanMorrison, et al. Estimating aboveground biomass using lidar remote sensing [C]. Remote Sensing for Agriculture, Ecosystems, and Hydrology IV Conference, Sep tember 23 ～27, 2002, Agia Pelagia, Crete, Greece
[10]	庞勇,于信芳,李增元,等. 星载激光雷达波形长度提取与林业应用潜力分析[J]. 林业科学, 2006, 42 (7) : 137～140
[11]	庞勇,孙国清,李增元. 林木空间格局对大脚印激光雷达波形影响模拟[J]. 遥感学报, 2006, 10 (1) : 97～104
[12]	Ni2MeisterW, Jupp D L B, Dubayah R. Modeling lidarwaveformsin heterogeneous and discrete canop ies[J]. IEEE Trans Geosci Remote Sensing, 2001, 39: 1 943～1 958
[13]	Kotchenova S, NikolayV Shabanov, Yuri Knyazikhin, et al. Modeling lidarwaveformswith time-dependent stochastic radiative transfertheory for remote estimations of forest biomass[J]. Journal of Geophysical Research, 2003, 108 - D15: ACL12 - 1
[14]	Brenner A C, Jay Zwally, Charles R B, et al. GLAS AlgorithmTheoretical BasisDocument Version 3. 0 -Derivation of Range andRange Distributions From Laser Pulse Waveform Analysis for Surface Elevations, Roughness, Slope, and Vegetation Heights
[15]	Harding D J, Blair J B, Rabine D L, et al. SL ICER: Scanning Lidar Imager of Canop ies by Echo Recovery instrument and data p roduct descrip tion, v. 1. 3
[16]	Gastellu-Etchegorry, Demarez V, Pinel V, et al. Modeling radiativetransfer in heterogeneous 3-D vegetation canop ies [J]. RemoteSensing of Environment, 1996, 58: 131～156
[17]	Ralph Dubayah, Blair J B, Jack Bufton, et al. The Vegetation Canopy LidarMission. Land Satellite Information in the Next DecadeII: Sources and App lications[C]. American Society for Photogrammetry and Remote Sensing, Bethesda, MD. 1997, 100～112
[18]	汤国安,刘学军,闾国年. 数字高程模型及地学分析的原理与方法[M]. 北京:科学出版社, 2005
[19]	LefskyMichael A, HardingD J, Michael Keller, et al. Estimates offorest canopy height and aboveground biomass using the GeoscienceLaserAltimeter System[J]. Geophys Res Lett, 2005, 32, L22S02

[1]	韩大校 , 王千雪 , 王烁 , 纪昊男 , 柴林琦 , 张吉利 . 地形和森林植被因子对落叶松毛虫越冬代发生及数量的影响. 林业科学研究, 2023, 36(2): 144-152. doi: 10.12403/j.1001-1498.20220187
[2]	孟康敏 , 赵冰 , 朱旭 , 李绍忠 . 西丰县长白落叶松生长与地形、土壤的关系*. 林业科学研究, 1989, 2(2): 181-184.
[3]	李迎春 , 杨清平 , 郭子武 , 陈双林 , 胡俊靖 . 毛竹林持续高温干旱灾害特征及影响因素分析. 林业科学研究, 2015, 28(5): 646-653.
[4]	刘美爽 , 邢艳秋 , 吴红波 , 尤号田 . 基于ICESat-GLAS波形估测平均树高的研究. 林业科学研究, 2014, 27(3): 309-315.
[5]	周梅 , 李春干 , 李振 , 余铸 . 点云密度对无人机激光雷达森林参数估测精度的影响. 林业科学研究, 2024, 37(2): 39-47. doi: 10.12403/j.1001-1498.20230242
[6]	. 激光雷达沙尘参数提取技术研究. 林业科学研究, 2009, 22(2): -.
[7]	庞勇 , 李增元 , 谭炳香 , 刘清旺 , 赵峰 , 周淑芳 . 点云密度对机载激光雷达林分高度反演的影响. 林业科学研究, 2008, 21(Z1): 14-19.
[8]	梁晓军 , 庞勇 , 陈博伟 . 基于地基激光雷达胸径提取的单木位置精确测量. 林业科学研究, 2020, 33(4): 67-74. doi: 10.13275/j.cnki.lykxyj.2020.04.009
[9]	熊昊 , 庞勇 , 荚文 , 李春干 . 基于机载激光雷达冠层高度模型的小班区划. 林业科学研究, 2022, 35(2): 28-36. doi: 10.13275/j.cnki.lykxyj.2022.02.004
[10]	洪奕丰 , 张守攻 , 陈伟 , 陈东升 , 项伟波 , 庞勇 . 基于机载激光雷达的落叶松组分生物量反演. 林业科学研究, 2019, 32(5): 83-90. doi: 10.13275/j.cnki.lykxyj.2019.05.011
[11]	鞠洪波 . 资源信息系统中数字地形模型子系统的建立. 林业科学研究, 1989, 2(2): 149-154.
[12]	任正龑 , 朱清科 , 张恰咛 , 马欢 , 黄正佳 . 陕北黄土区坡面微地形对乔木空间分布的影响. 林业科学研究, 2016, 29(3): 389-394.
[13]	张恰咛 , 朱清科 , 任正龑 , 黄正佳 . 地形对陕北黄土区衰退沙棘人工林天然更新的影响. 林业科学研究, 2017, 30(2): 300-306. doi: 10.13275/j.cnki.lykxyj.2017.02.016
[14]	贾呈鑫卓 , 李帅锋 , 苏建荣 . 地形因子对思茅松人工林土壤有机碳储量的影响. 林业科学研究, 2016, 29(3): 424-429.
[15]	王兵 , 崔向慧 , 李海静 , 白秀兰 . 大岗山森林生态站区气象要素分析. 林业科学研究, 2002, 15(6): 693-699.
[16]	杨承栋 , 王丽丽 , 祁月清 , 焦如珍 , 陈仲庐 , 周慧 . 江西大岗山东侧森林土壤性质与肥力的关系. 林业科学研究, 1993, 6(5): 504-509.
[17]	王兵 . 大岗山森林生态系统定位研究站. 林业科学研究, 1999, 12(5): 561-562.
[18]	. 大亮子河国家森林公园大型真菌的生态分布与资源评价. 林业科学研究, 2009, 22(6): 883-887.
[19]	朱梦雪 , 赵洋毅 , 王克勤 , 段旭 , 卢华兴 , 涂晓云 . 中亚热带不同演替森林群落土壤结构分形特征对大孔隙的影响. 林业科学研究, 2022, 35(2): 67-77. doi: 10.13275/j.cnki.lykxyj.2022.02.008
[20]	吴丽芝 , 高岗 , 秦富仓 , 姚云峰 . 内蒙古赤峰市敖汉旗大五家流域森林涵养水源功能与林分因子的相关性研究. 林业科学研究, 2013, 26(6): 722-729.

点击查看大图

计量

文章访问数: 3557
HTML全文浏览量: 220
PDF下载量: 2432
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

地形对大光斑激光雷达森林回波影响研究

Effects of Terra in on the Large Footpr in t L idarWaveform of Forests

计量

地形对大光斑激光雷达森林回波影响研究

English Abstract

Effects of Terra in on the Large Footpr in t L idarWaveform of Forests

全文HTML

目录

留言板

地形对大光斑激光雷达森林回波影响研究

Effects of Terra in on the Large Footpr in t L idarWaveform of Forests

计量

出版历程

地形对大光斑激光雷达森林回波影响研究

English Abstract

Effects of Terra in on the Large Footpr in t L idarWaveform of Forests

全文HTML

目录