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当前位置: 首页 > 文章 > 新温185号核桃叶片光谱特征及其对施肥的响应 新疆农业科学 2014,51 (7) 1205-1212
Position: Home > Articles > The Leaf Spectral Characteristics of Juglans regia'Xinwen 185' and Its Response to the Fertilizer Xinjiang Agricultural Sciences 2014,51 (7) 1205-1212

新温185号核桃叶片光谱特征及其对施肥的响应

作  者：
肖冰;潘存德;王世伟;叶静;常志帅;努斯热提·托合提
单  位：
新疆农业大学林学与园艺学院/新疆教育厅干旱区林业生态与产业技术重点实验室
关键词：
新温185号;核桃;叶片;光谱反射率;N肥;P肥;K肥
摘  要：
【目的】通过肥料效应田间试验,了解不同氮(N)、磷(P)、钾(K)施肥水平下新温185号核桃叶片光谱反射率的变化特征,并检验其光谱指数是否存在差异性,以期为探索采用光谱技术监测其树体营养的可能性提供科学依据。【方法】基于"3414"肥料效应田问试验,使用单通道高光谱非成像光谱辐射仪(UniSpeeSC)测定新温185号核桃叶片在不同N、P、K施肥水平下的光谱反射率。【结果】新温185号核桃叶片光谱反射率依赖于波长,在510和680 nm附近出现吸收谷,在550 nm附近出现反射峰,在710~780 nm波段出现了一个陡峭的爬升脊,在810~1000 am波段出现了一个较高的反射平台。不同N、P、K施肥水平下,新温185号核桃叶片的光谱反射率依波长变化发生了一定程度的改变,并且叶片光谱指数ND_(705)存在显著差异(P<0.05)。【结论】存在利用叶片光谱反射率监测新温185号核桃树体营养的可能性,可尝试采用光谱技术监测其树体N、P、K营养的进一步研究。
译  名：
The Leaf Spectral Characteristics of Juglans regia'Xinwen 185' and Its Response to the Fertilizer
作  者：
XIAO Bing;PAN Cun-de;WANG Shi-wei;YE Jing;CHANG Zhi-shuai;Nusireti Tuoheti;Collage of Forestry and Horticulture,Xinjiang Agricultural University/Key Laboratory of Forestry Ecology and Industry Technology in Arid Region,Education Department of Xinjiang;
关键词：
Juglans regia 'Xinwen 185';;walnut;;leaf;;spectral reflectance;;nitrogen fertilizer;;phosphate fertilizer;;potash fertilizer
摘  要：
【Objective】 Through fertilizer effect field trials,the experiment aimed at in-deep understanding the spectral reflectance variations of Juglans regia 'Xinwen185'leaves under different nitrogen(N)fertilizer,phosphate(P) fertilizer and potash(K) fertilizer amount treatments,and whether there were some differences in spectral indices was examined,with a view to providing a theoretical basis for exploring the possibility of monitoring its tree nutrition with spectroscopic techniques.【Method】 Based on the "3414" fertilizer effect field trials,the spectral reflectance of J.regia 'Xinwen185'leaves under different N,P and K fertilizer amount treatments were measured by non-imaging hyper spectral radiometer with single channel(UniSpeeSC).【Result】The spectral reflectance of J.regia 'XinwenlS5'leaves depended on the wavelength.There was an absorption valley around 510 nm and 680 nm,a reflectance peak around 550 nm,a steep climbing ridge at the band of 710-780 nm,and a higher reflectance platform at 810-1 000 nm.The spectral reflectance of J.regia 'Xinwen185'leaves was altered to some extent with the wavelength variation under different N,P and K fertilizer amount treatments.Moreover,there was significant difference(P < 0.05) of the leaf spectral index ND705.【Conclusion】 There remained the possibility that monitoring J.regia 'Xinwen185'tree nutrition might take advantage of the spectral reflectance.A further in-depth study should be made on monitoring its tree N,P and K nutrition with spectroscopic techniques.

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