干旱区生态环境知识资源中心(Arid): 河西走廊薄叶荒漠植物光谱特征

Arid

	河西走廊薄叶荒漠植物光谱特征
其他题名	Spectral Reflectance Characteristics of Desert Plants with Thin Leaves in Hexi Corridor
	周兰萍; 魏怀东; 詹科杰; 陈芳; 李亚; 袁宏波; 胡小柯
来源期刊	西北林学院学报
ISSN	1001-7461
出版年	2017
卷号	32 期号:6 页码:74-81
中文摘要	了解和掌握干旱区薄叶荒漠植物的光谱特征,不仅可为干旱荒漠区植物的遥感识别奠定基础,且对于干旱区的生态环境调控、演变及遥感反演等都具有重要的意义。以荒漠植物种丰富的河西走廊为研究区,利用全光谱便携式地物光谱仪测定13种灌木和9种草本薄叶荒漠植被地物反射光谱,对其光谱特征曲线、光谱特征参数及植被指数进行分析研究。结果表明,1)植被反射光谱波形大致相同,总体符合植被光谱特征的规律性;灌木植被和草本植被各在4个波段区间植被反射率差异明显,可用于识别荒漠植物;2)蓝边、黄边、红边位置及红谷、绿峰出现的波段范围差异不大,而蓝边、黄边、红边的斜率和面积各有差异;3)DVI值明显高于NDVI、SAVI、RVI、RDVI,利用同一种植被的5种植被指数的值同时大或小的排列顺序区分测定的大部分灌木植被和草本植被。
英文摘要	The understanding and mastering the spectral characteristics of desert plants with thin leaves in arid region can not only lay the ground for remote sensing identification of drought desert plants,but also has vital significance for ecological environment control,evolution and remote sensing inversion and so on. Take Hexi Corridor of Gansu as research area,which is rich in desert plants,using Fieldspec?4Standard- Res(FS4S)Spectroradiometer,surface reflective spectra of 13kinds of desert shrubs and 9species of herbaceous vegetations were measured.The correlationships between their spectral characteristic curves,spectral characteristic parameters and the spectral reflectance of vegetation index were analyzed.The results showed 1)waveforms of vegetation reflection spectra were approximately the same with the regularity of the spectral characteristics of vegetation.Shrubs and herbaceous vegetations in each of the four bands could be used to distinguish different desert plants because vegetation reflectance differences were significant.2)Blue, yellow,and red edge positions and red valley,green peak appeared in the band range,while the blue, yellow,and red edge slopes and areas were different.3)DVI values were significantly higher than those of NDVI,SAVI,RVI,RDVI.The majority of shrub vegetations and herbaceous vegetations could be distinguished by using five vegetation indices of the same plant.
中文关键词	光谱特征 ; 荒漠植物 ; 光谱曲线 ; 反射率
英文关键词	spectral reflectance characteristics thin leaf desert plant spectral curve reflectance
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:6120041
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236793
作者单位	甘肃省治沙研究所, 甘肃省荒漠化与风沙灾害防治重点实验室省部共建国家重点实验室培育基地;;甘肃省荒漠化防治重点实验室;;甘肃民勤荒漠草地生态系统国家野外科学观测研究站, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	周兰萍,魏怀东,詹科杰,等. 河西走廊薄叶荒漠植物光谱特征[J]. 甘肃省治沙研究所,2017,32(6):74-81.
APA	周兰萍.,魏怀东.,詹科杰.,陈芳.,李亚.,...&胡小柯.(2017).河西走廊薄叶荒漠植物光谱特征.西北林学院学报,32(6),74-81.
MLA	周兰萍,et al."河西走廊薄叶荒漠植物光谱特征".西北林学院学报 32.6(2017):74-81.