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植物冠層數(shù)字圖像分析儀CI-110
日期:2017-03-13 13:20:48

 植物冠層分析儀利用魚(yú)眼鏡頭和CCD圖像傳感器來(lái)獲取植物冠層圖像。通過(guò)專業(yè)軟件分析,獲得植物冠層的葉面積指數(shù)(LAI)和冠層其它的參數(shù);自動(dòng)水平數(shù)字相機(jī)獲取150°的冠層圖像,手柄上24個(gè)PAR傳感器測(cè)量光合有效輻射并計(jì)算光斑。圖像法測(cè)量植物冠層,僅僅獲取一次冠層圖像即可,簡(jiǎn)化了傳統(tǒng)能量法要一天定點(diǎn)多次測(cè)量的繁復(fù)工作;同時(shí)可以躲開(kāi)障礙物,選擇合適測(cè)量點(diǎn)。

主要功能

?  測(cè)量冠層葉面積指數(shù)(LAI),光合有效輻射值,計(jì)算太陽(yáng)光斑

?  可調(diào)節(jié)鏡頭聚焦適合不同高度的冠層測(cè)量,從低矮植物到林木均可使用

?  鏡頭自動(dòng)水平,一次成像,測(cè)量不受天氣、光線影響,無(wú)需天空空白對(duì)照測(cè)量

?  無(wú)需在冠層頂部做參照測(cè)量

?  現(xiàn)場(chǎng)獲取植物冠層彩色圖像,并直接顯示和儲(chǔ)存,強(qiáng)大的冠層分析軟件功能,可以手動(dòng)調(diào)節(jié)閾值、自動(dòng)調(diào)節(jié)閾值(OTSU),現(xiàn)場(chǎng)評(píng)估冠層內(nèi)的太陽(yáng)直接輻射透過(guò)系數(shù)或LAI分析空隙系數(shù)。

?  軟件設(shè)置天頂角和方位角

?  用戶可通過(guò)分析軟件進(jìn)行天空和葉片進(jìn)行顏色過(guò)濾

?  通過(guò)GPS和羅盤功能方便定位,在植物生長(zhǎng)季過(guò)程定點(diǎn)重復(fù)測(cè)量

?  軟件進(jìn)行屏蔽、躲開(kāi)影響圖像計(jì)算結(jié)果的人影、天空等無(wú)用圖像

                                                                                        

測(cè)量參數(shù)

?  植物冠層葉面積指數(shù)(LAI)

?  葉片平均傾角(MLA)

?  散射輻射透過(guò)率(Transmission Coefficient)

?  消光系數(shù)(Extinction Coefficient)、直接輻射透過(guò)系數(shù)(Transmission Coefficient)、葉片分布(Leaf Distribution)

?  GPS定位信息(GPS Lock)

?  太陽(yáng)光斑(Sunflecks)、光合有效輻射(PAR)


應(yīng)用領(lǐng)域

廣泛應(yīng)用農(nóng)業(yè)科學(xué)、林木科學(xué)和植物結(jié)構(gòu)分析等方面,研究植物葉面積指數(shù)與生產(chǎn)關(guān)系、林木的冠層指標(biāo)、農(nóng)作物和林木的生長(zhǎng)監(jiān)測(cè);林木內(nèi)的光合有效輻射強(qiáng)度;對(duì)不同緯度林木的葉面積指數(shù)的變化,環(huán)境對(duì)植物觀察的影響,田間農(nóng)作物、樹(shù)林及低矮植物冠層測(cè)量

主要技術(shù)參數(shù)

?  鏡頭視角:150°廣角鏡頭

?  相機(jī)分辨:800萬(wàn)像素,

?  交互界面:7”觸屏,6按鍵

?  測(cè)量時(shí)間:0.5 s

?  冠層分區(qū):天頂角劃分1~10;方位角劃分1~10

?  圖像分析:可對(duì)冠層圖進(jìn)行調(diào)節(jié)、數(shù)據(jù)分析和編輯

?  工作環(huán)境:5-50℃, 0-100% RH(不結(jié)露)

?  操作桿:400mm

?  PAR傳感器:24個(gè)

?  附加功能:GPS數(shù)據(jù)顯示

?  供電:>6小時(shí)

選購(gòu)指南

手柄、魚(yú)眼鏡頭、操作說(shuō)明、軟件和便攜式手提箱

林地測(cè)量模式

110.jpg

產(chǎn)地:美國(guó)CID

參考文獻(xiàn)

原始數(shù)據(jù)來(lái)源:Google Scholar
1.Ziany N. Brand?o & Jo?o H. Zonta(2016)Hemispherical photography to estimate biophysical variables of cotton,Revista Brasileira de Engenharia Agrícola e Ambiental,10.1590/1807-1929
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 ?nan(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,F(xiàn)orest Ecology and Management, 365 (137-151). 10.1016/j.foreco.2016.01.017

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