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东北哈泥泥炭地不同泥炭藓属植物高光谱特征

王林凤1,冯璐2,李微2,吴玉环1,2*#br#   

  1. 1杭州师范大学生命与环境科学学院, 生态系统保护与恢复杭州市重点实验室, 杭州 310036;2中国科学院沈阳应用生态研究所森林生态与管理重点实验室, 沈阳 110016)
  • 出版日期:2018-02-10 发布日期:2018-02-10

Hyperspectral characteristics of different species of Sphagnum L. in Hani peatland, Northeast China.

WANG Lin-feng1, FENG Lu2, LI Wei2, WU Yu-huan1,2*   

  1. (1College of Life andEnvironmental Sciences, Hangzhou Normal University; Key Laboratory of Hangzhou City forEcosystem Protection and Restoration, Hangzhou 310036, China; 2Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China).
  • Online:2018-02-10 Published:2018-02-10

摘要:

泥炭藓是北方泥炭地的优势植物,其高光谱特征研究很少。本研究采用高光谱遥感技术,对不同水位埋深条件下(藓丘及丘间)生长的相同种类泥炭藓植物,及同一水位埋深条件下的不同种类泥炭藓植物的光谱特征进行研究。结果表明,不同种类泥炭藓属植物的光谱反射特征具有明显种间差异,主要反映在绿峰、红边的差异上。由于水分条件差异,生长在高丘和低丘的锈色泥炭藓、泥炭藓及中位泥炭藓在可见光和近红外波段的光谱反射率均具有显著差异,高丘的泥炭藓属植物的反射率均高于低丘的泥炭藓属植物。本研究所获得的东北地区哈泥泥炭地几种泥炭藓属植物的详细光谱信息,可以为高分辨率航空影像和卫片解译泥炭藓湿地提供地面基础。
 

关键词: 小流域, 土壤有机质, 生态治理, 黏粒含量, 土壤容重

Abstract: Few studies have examined the hyperspectral characteristics of Sphagnum species which are dominated in northern peatlands. Hyperspectral remote sensing technology was used in this study to explore the spectral characteristics of the same Sphagnumspecies in different water level conditions (hummock and hollow), and those of different Sphagnumspecies in the same water level conditions. The results showed that the spectral reflectance  varied across different Sphagnum species, with large difference in  green peak and  red edge. Due to the difference ofwater level conditions, the spectral reflectance in visible and infrared wavebands ofSphagnum fuscum, S. palustre, andS. magellanicum was different between highhummock and lowhummock populations, with the reflectance of highhummock species being higher than that of lowhummock ones. The detailed spectral information of severalSphagnum species in HaniSphagnumwetland in Northeast China obtained here would be helpful for interpreting thehigh resolution aerial photographs and satellite images of Sphagnumwetlands.

Key words: ecological management, small watershed, soil bulk density, clay content, soil organic matter