干旱区生态环境知识资源中心(Arid): 新疆三种主要草地植被类型的高光谱反射特征研究

Arid

	新疆三种主要草地植被类型的高光谱反射特征研究
其他题名	Analysis of hyperspectral reflectance characteristics of three main grassland types in Xinjiang
	杨红飞 1; 李建龙 1; 穆少杰 1; 杨齐 2; 胡潇潇 1; 金国平 3; 赵万羽 4
来源期刊	草业学报
ISSN	1004-5759
出版年	2012
卷号	21 期号:6 页码:258-266
中文摘要	本研究利用便携式地物光谱仪,对新疆部分天然草地类型及植物进行了实地光谱测量,分析和比较了3种草地类型的光谱反射特征。结果表明,在可见光波段,干荒漠类草甸植被,除角果黎外,其冠层反射率要低于低地山地草甸和蒿属荒漠草地。而在近红外波段,角果黎、骆驼蓬、梭梭冠层光谱反射率明显高于低地山地草甸植被和部分蒿属荒漠草甸植被。同一类型草地中,由于植被类别间的差异以及叶片内部结构的不同,冠层光谱反射率差异较大。3类草地类型不同植被的红边特征参数表现为干荒漠类草甸的梭梭红边位置最高,低地山地草甸的博洛塔绢蒿红边位置最低;蒿属荒漠类草甸的骆驼蓬的红边斜率和红边面积最大,低地山地草甸的苔草红边斜率和红边面积最小。对6种代表性的植被指数分析得出,PRI、OSAVI、MCARI指数均表现为蒿属荒漠类草甸<低地山地草甸<干荒漠类草甸。NDVI植被指数则表现为低地山地草甸最大,而干荒漠类草甸最小。GNDVI指数表现为低地山地草甸最大,蒿属荒漠类草甸最小。总之,高光谱遥感对于草地植被的分类监测和遥感反演等具有重要的意义。
英文摘要	The arid desert meadow, Artemisia desert meadow, and lowland mountain meadow are three main grassland types of Xinjiang Uygur Autonomous Region of China. To assist the extraction of remote sensing data and dynamic monitoring of grassland, hyperspectral reflectance spectra were measured with a portable ground object spectrometer. The reflectance spectral characteristics were analyzed for the three main grassland types that are located on the northern side of the Tianshan Mountains in Fukang city. The canopy spectral reflectance of arid desert meadow was smaller than those of Artemisia desert meadow and lowland mountain meadow in the visible wavelengths (except for Ceratocarpus arenarius) while in the near infrared wavelengths, the spectral reflectance of C. arenarius, Peganum harmala and Haloxylon ammodendron was considerably greater than those of Artemisia desert meadow and lowland mountain meadow. Because of the difference between vegetation type and internal structure of leaves, the differences of spectral reflectance between different vegetations that belong to the same type were significant in the visible and the near infrared wavelengths. The value of the red edge position of H. ammodendron of arid desert meadow was greater than those of Artemisia desert meadow and lowland mountain meadow. The value of Dlambda_red and S_red of P. harmala in the Artemisia desert meadow was greater than those of arid desert meadow and lowland mountain meadow, while those of Carex liparocarpos was the smallest. PRI, OSAVI and MCARI were the greatest for arid desert meadow vegetation and the smallest for Artemisia desert meadow vegetation. NDVI was the greatest for lowland mountain meadow and the lowest for arid desert meadow. In addition, GNDVI was the greatest for lowland mountain meadow and the lowest for Artemisia desert meadow. In conclusion, hyperspectral remote sensing played a vital and significant role in monitoring grassland vegetation classification and remote sensing inversion.
中文关键词	高光谱草地遥感 ; 光谱特征 ; 植被指数 ; 红边参数
英文关键词	hyperspectral grassland remote sensing spectral characteristics vegetation index red edge parameter
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4715584
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227801
作者单位	1.南京大学生命科学学院, 南京, 江苏 210093, 中国; 2.中国环境监测总站, 北京 100012, 中国; 3.新疆阜康市畜牧局草地站, 阜康, 新疆 831500, 中国; 4.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	杨红飞,李建龙,穆少杰,等. 新疆三种主要草地植被类型的高光谱反射特征研究[J]. 中国科学院新疆生态与地理研究所,2012,21(6):258-266.
APA	杨红飞.,李建龙.,穆少杰.,杨齐.,胡潇潇.,...&赵万羽.(2012).新疆三种主要草地植被类型的高光谱反射特征研究.草业学报,21(6),258-266.
MLA	杨红飞,et al."新疆三种主要草地植被类型的高光谱反射特征研究".草业学报 21.6(2012):258-266.