紫花苜蓿冠层反射光谱与叶片含水率关系研究

doi:10.3964/j.issn.1000-0593(2013)03-0766-04

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摘要：以呼图壁县草地生态站不同灌溉量下现蕾期紫花苜蓿冠层光谱反射率为研究对象，研究确定紫花苜蓿叶片含水率的光谱诊断模型。结果表明：（1）在近红外波段随着紫花苜蓿叶片含水率的增加冠层光谱反射率逐渐减小;（2）利用归一化反射光谱建立的苜蓿叶片含水率光谱反演模型优于原始反射光谱，并且在1 344～1 660 nm波段内所建立的苜蓿叶片含水率预测模型平均相对误差最低（7.8%）。（3）筛选建立的叶片含水率光谱诊断模型为：Y＝0.962-7.560X_{1 451}+5.295X_{1 473}。所建立的紫花苜蓿叶片含水率光谱预测模型可为苜蓿科学灌溉提供决策依据。

关键词：紫花苜蓿;含水率;冠层光谱反射率;现蕾期;模型

Abstract：In the present study, alfalfa canopy reflectance was researched at alfalfa squaring period under different irrigation amount at the hutubi county grassland ecological station. Determining the spectral diagnostic model of alfalfa leaf moisture content was determined by spectrometry. The results showed that (1) The spectral reflectance of alfalfa canopy gradually decreases with the increase in the leaf water content in the near infrared. (2) The spectral inversion model of alfalfa leaf moisture content established by normalized reflectance spectra is superior to the original reflectance spectra, and the prediction model established in the 1 344~1 660 nm band has the lowest average relative error (7.8%). (3) In this study, the spectral diagnostic model of the leaf moisture content is: Y＝0.962-7.560X_{1 451}+5.295X_{1 473}. The spectral prediction model of the alfalfa leaf moisture content can provide a basis for decision making for scientific irrigation of alfalfa.

Key words：Alfalfa;Water content;Canopy reflectance;Squaring period;Model

收稿日期: 2012-07-17 修订日期: 2012-10-25

中图分类号:

S143.1

通讯作者: 盛建东 E-mail: sjd-2004@126.com

引用本文:

付彦博，范燕敏，盛建东^*，李宁，武红旗，李美婷，李丽，赵云 . 紫花苜蓿冠层反射光谱与叶片含水率关系研究[J]. 光谱学与光谱分析, 2013, 33(03): 766-769.
FU Yan-bo, FAN Yan-min, SHENG Jian-dong^*, LI Ning, WU Hong-qi, LI Mei-ting, LI Li, ZHAO Yun . Study on Relationship Between Alfalfa Canopy Spectral Reflectance and Leaf Water Content . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(03): 766-769.

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[1] HUANG Wen-hui, LIU Zi-xue（黄文惠, 刘自学）. Overview of the Distribution and Development of Alfalfa·China Alfalfa(综述苜蓿的分布和发展·中国苜蓿). Beijing: China Agriculture Press(北京：中国农业出版社), 1995. 2.
[2] Abrams S M, Shenk J S, Westerhaus M O, et al. Journal of Dairy Science, 1987, 70: 806.
[3] XIAO Yan-fang，GONG Hui-li, ZHOU De-min, et al(肖艳芳, 宫辉力, 周德民, 等). Acta Ecologica Sinica(生态学报)，2012, 32: 3098.
[4] JIANG Jian，YANG Bao-ling，XIA Tong，et al(姜健, 杨宝灵, 夏彤, 等). Transactions of the Chinese Society of Agricultural Engineering(农业工程学报), 2010, 26(12): 207.
[5] ZHENG Hong-mei, HU Tian-ming，et al(郑红梅, 呼天明，等). Seed World(种子世界), 2004，5: 36.
[6] XIE Bo-cheng, XUE Xu-zhang, LIU Wei-dong, et al(谢伯承, 薛绪掌, 刘伟东, 等). Acta Pedologica Sinica(土壤学报)，2005, 42(1): 171.
[7] WANG Ji-hua, ZHAO Chun-jiang, GUO Xiao-wei, et al(王纪华, 张春江, 郭晓维, 等). Scientia Agriculture Sinka(华北农学报), 2001, 16(1): 104.
[8] ZHANG Xiao-dong, MAO Han-ping, ZUO Zhi-yu, et al(张晓东, 毛罕平, 左志宇, 等). Journal of Anhui Agricultural Sciences(安徽农业科学), 2011, 39(30): 18451.
[9] Gates D M, Keegan H J, Schleter J C, et al. Applied Optics, 1965，4(1): 11.
[10] TONG Chang-fu, GUO Ke-zhen, SHI Hai-bin, et al(佟长福, 郭克贞, 史海滨, 等). Transactions of The Chinese Society of Agricultural Engineering(农业工程学报), 2005, 21(12): 152.
[11] YANG Yong, ZHANG Dong-qiang, LI Shuo, et al(杨勇，张冬强，李硕, 等). Chinese Agricultural Science Bulletin(中国农学通报), 2011, 27(2): 180.
[12] TIAN Yong-chao, ZHU Yan, CAO Wei-xing, et al(田永超，朱艳，曹卫星，等). Chinese Journal of Applied Ecology(应用生态学报), 2004, 15(11): 2072.
[13] ZHAO Zhao, LI Xia, YIN Ye-biao, et al(赵钊, 李霞, 尹业彪，等). Xinjiang Agricultural Sciences(新疆农业科学), 2010, 30(9): 2500.
[14] SUN Jun, MAO Han-ping, YANG Yi-qing, et al(孙俊, 毛罕平, 羊一清, 等). Transactions of the Chinese Society of Agricultural Engineering(农业工程学报), 2009, 25: 133.