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    植物冠层数字图像分析仪CI-110
    日期:2017-03-13 13:20:48

     植物冠层分析仪利用鱼眼镜头和CCD图像传感器来获取植物冠层图像。通过专业软件分析,获得植物冠层的叶面积指数(LAI)和冠层其它的参数;自动水平数字相机获取150°的冠层图像,手柄上24个PAR传感器测量光合有效辐射并计算光斑。图像法测量植物冠层,仅仅获取一次冠层图像即可,简化了传统能量法要一天定点多次测量的繁复工作;同时可以躲开障碍物,选择合适测量点。

    主要功能

    Ø  测量冠层叶面积指数(LAI),光合有效辐射值,计算太阳光斑

    Ø  可调节镜头聚焦适合不同高度的冠层测量,从低矮植物到林木均可使用

    Ø  镜头自动水平,一次成像,测量不受天气、光线影响,无需天空空白对照测量

    Ø  无需在冠层顶部做参照测量

    Ø  现场获取植物冠层彩色图像,并直接显示和储存,强大的冠层分析软件功能,可以手动调节阈值、自动调节阈值(OTSU),现场评估冠层内的太阳直接辐射透过系数或LAI分析空隙系数。

    Ø  软件设置天顶角和方位角

    Ø  用户可通过分析软件进行天空和叶片进行颜色过滤

    Ø  通过GPS和罗盘功能方便定位,在植物生长季过程定点重复测量

    Ø  软件进行屏蔽、躲开影响图像计算结果的人影、天空等无用图像

                                                                                            

    测量参数

    Ø  植物冠层叶面积指数(LAI)

    Ø  叶片平均倾角(MLA)

    Ø  散射辐射透过率(Transmission Coefficient)

    Ø  消光系数(Extinction Coefficient)、直接辐射透过系数(Transmission Coefficient)、叶片分布(Leaf Distribution)

    Ø  GPS定位信息(GPS Lock)

    Ø  太阳光斑(Sunflecks)、光合有效辐射(PAR)


    应用领域

    广泛应用农业科学、林木科学和植物结构分析等方面,研究植物叶面积指数与生产关系、林木的冠层指标、农作物和林木的生长监测;林木内的光合有效辐射强度;对不同纬度林木的叶面积指数的变化,环境对植物观察的影响,田间农作物、树林及低矮植物冠层测量

    主要技术参数

    Ø  镜头视角:150°广角镜头

    Ø  相机分辨:800万像素,

    Ø  交互界面:7”触屏,6按键

    Ø  测量时间:0.5 s

    Ø  冠层分区:天顶角划分1~10;方位角划分1~10

    Ø  图像分析:可对冠层图进行调节、数据分析和编辑

    Ø  工作环境:5-50℃, 0-100% RH(不结露)

    Ø  操作杆:400mm

    Ø  PAR传感器:24个

    Ø  附加功能:GPS数据显示

    Ø  供电:>6小时

    选购指南

    手柄、鱼眼镜头、操作说明、软件和便携式手提箱

    林地测量模式

    110.jpg

    产地:美国CID

    参考文献

    原始数据来源:Google Scholar
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    2.Jarrah Wills, John Herbohn, Maria Opelia Maranguit Moreno, Mayet S. Avela, Jennifer Firn,(2016)Next-generation tropical forests: reforestation type affects recruitment of species and functional diversity in a human-dominated landscape Authors,Journal of Applied Ecology 10.1111/1365-2664.12770
    3.Long-Fei Chena, Zhi-Bin Hea, Xi Zhua, Jun Dua, Jun-Jun Yanga, Jing Lia(2016)Impacts of afforestation on plant diversity, soil properties, and soil organic carbon storage in a semi-arid grassland of northwestern China,CATENA 10.1016/j.catena.2016.07.009
    4.Adil Enis Arslan, Esra Erten, Muhittin İnan(2016) Application of Geodetic Projections to Terrestrial Laser Scanning in Leaf Area Index calculation,Signal Processing and Communication Application Conference 10.1109/SIU.2016.7495900
    5.Prahlad, V.C.(2016)Studies on Canopy Distribution, Stand Growth and Regeneration in Cedrus deodara (Roxb.) Loud Under Temperate Conditions of Himachal Pradesh,Thesis for the Dr. Y.S. Parmar University of Horticulture & Forestry, Solan
    6.Junaid N. Khan; A. K. Jain; Vijay P. Singh, F.ASCE; R. Kumar; R. Sharda; and M. Siag(2016)Simulation of Mulch and No-Mulch Conditions for Various Soil Matric Potential Thresholds for Drip-Fertigated Guava (Psidium guajava L.) in the Semiarid Region of Northwest India Journal of Irrigation and Drainage Engineering 10.1061/(ASCE)IR.1943-4774.0001047
    7.Shi De-yang, Li Yan-hong, Zhang Ji-wang, Liu Peng, Zhao Bin, Dong Shu-ting(2016)Increased plant density and reduced N rate lead to more grain yield and higher resource utilization in summer maize,Journal of Integrative Agriculture 10.1016/S2095-3119(16)61355-2
    8.Davi Rodrigo Rossatto, Everlon Cid Rigobelo(2016)Tree encroachment into savannas alters soil microbiological and chemical properties facilitating forest expansion,Journal of Forestry Research 10.1007/s11676-016-0219-0
    9.Assal, T., Anderson, P., Sibold, J.(2016)Spatial and temporal trends of drought effects in a heterogeneous semi-arid forest ecosystem,Forest Ecology and Management, 365 (137-151). 10.1016/j.foreco.2016.01.017

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