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      DRL26C 樹木生長監(jiān)測儀用于監(jiān)測樹干的生長微變化，使樹的生長與水分關(guān)系的研究變得更容易和更準(zhǔn)確。傳感器為不銹鋼和防紫外線塑料制作，堅固耐用，適合長期監(jiān)測，無須外接電池或太陽能板，內(nèi)置鋰電池和數(shù)據(jù)采集器，可記錄50000個數(shù)據(jù)，通過紅外數(shù)據(jù)輸出。儀器具有較高的分辨率，可精確測量1微米莖桿的微變化，為研究樹木在白天，夜晚等氣候條件差異下的生長提供重要數(shù)據(jù)依據(jù)。

主要優(yōu)點：

適用于直徑大于8cm的任何樹干；

傳統(tǒng)機械與電子技術(shù)相結(jié)合，測量更準(zhǔn)確；

精度較高，分辨率1微米；

無損安裝固定；

導(dǎo)出數(shù)據(jù)格式為TXT、Excel

技術(shù)參數(shù)：

量程：64mm生長量變化監(jiān)測

分辨率：0.001mm

誤差：量程2%

作用力：15-20N

工作溫度：-30-60℃

工作濕度：0-100%

溫度傳感器精度：±2℃

重量：300g

數(shù)據(jù)容量：50000個數(shù)據(jù)（每小時記錄1次則可自動記錄4年）

采樣間隔：10min-24hrs

電池壽命：1hr間隔5年；10mins間隔3年；待機5.5年

通訊方式：無線紅外傳輸

植物生理生態(tài)專業(yè)數(shù)據(jù)下載分析軟件，可進(jìn)行數(shù)據(jù)下載、數(shù)據(jù)在線觀測、柱狀圖、數(shù)據(jù)修復(fù)、統(tǒng)計分析（如每小時平均、每日平均、總計、最小值、最大值、數(shù)據(jù)相關(guān)分析、回歸分析）與圖表展示及系統(tǒng)設(shè)置等

可選配MicroLog三通道土壤監(jiān)測儀，實時、連續(xù)、原位監(jiān)測土壤水分、溫度、水勢的變化

推薦系統(tǒng)：樹木生理生態(tài)系統(tǒng)，同時對多棵樹木進(jìn)行實時在線監(jiān)測，采集記錄樹木生長、樹皮溫度（陰面和陽面）、樹干莖流等三個生理指標(biāo)的數(shù)據(jù)

產(chǎn)地：捷克

參考文獻(xiàn)

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4.Forner, A., Valladares, F., Bonal, D., Granier, A., Grossiord, C., and Aranda, I. (2018). Extreme droughts affecting Mediterranean tree species’ growth and water-use efficiency: the importance of timing. Tree Physiology 38, 1127–1137.

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9.Maicher, V., Sáfián, S., Murkwe, M., Delabye, S., Przyby?owicz, ?., Potocky, P., Kobe, I.N., Jane?ek, ?., Mertens, J.E.J., Fokam, E.B., et al. (2020). Seasonal shifts of biodiversity patterns and species’ elevation ranges of butterflies and moths along a complete rainforest elevational gradient on Mount Cameroon. Journal of Biogeography 47, 342–354.

10.Nalevanková, P., Je?ík, M., Sitková, Z., Vido, J., Le?tianska, A., and St?elcová, K. (2018). Drought and irrigation affect transpiration rate and morning tree water status of a mature European beech (Fagus sylvatica L.) forest in Central Europe. Ecohydrology 11, e1958.

11.Obojes, N., Meurer, A., Newesely, C., Tasser, E., Oberhuber, W., Mayr, S., and Tappeiner, U. (2018). Water stress limits transpiration and growth of European larch up to the lower subalpine belt in an inner‐alpine dry valley. The New Phytologist 220, 460.

12.Qian-Wen, J.I., Cheng-Yang, Z., Lei, Z., and Fa-Xu, Z. (2020). Stem radial growth dynamics of Pinus sylvestris var. mongolica and their relationship with meteorological factor in Saihanba, Hebei, China. Chinese Journal of Plant Ecology 44, 257.

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