干旱区生态环境知识资源中心(Arid): 基于地面高光谱遥感数据的梭梭地上生物量估算模型

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	基于地面高光谱遥感数据的梭梭地上生物量估算模型
其他题名	Estimation model for aboveground biomass of Haloxylon ammodendron based on hyper spectral data
	李园园; 楚光明; 牛攀新; 李明艳; 刘烈; 张洪波
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2018
卷号	32 期号:7 页码:93-97
中文摘要	梭梭(Haloxylon ammodendron)是准噶尔盆地建群种和优势种,梭梭生物量是评价荒漠生产力和生态功能的重要指标。以古尔班通古特沙漠南缘石河子地区沙地和盐碱地梭梭为研究对象,利用个体植株冠层高光谱数据提取的植被指数(VI)与实测的地上生物量进行6种单变量线性和非线性回归分析。结果表明:二次函数和幂函数与植株个体冠层NDVI呈现较强相关,其中二次函数拟合方程为B= 7.8- 112.61* NDVI+447.37* NDVI~2 (R_(adj)~2= 0.813,RSS= 5.583),幂函数拟合方程为B= 856.33* NDVI~(3.41) (R_(adj)~2= 0.817,RSS= 5.469),并利用这2种拟合方程估算梭梭地上生物量。分析发现,两个方程估算的梭梭个体地上生物量均值偏高,而对于不同径级梭梭地上生物量估算效果无明显规律。该研究对于利用地面高光谱数据无损、定量提取梭梭地上生物量进行了有益尝试,可为今后利用高光谱以及光学影像数据进行梭梭地上生物量的大范围估测提供一些参考。
英文摘要	Haloxylon ammodendron was the dominant species in Junggar Basin. Haloxylon ammodendron biomass of the H. ammodendron was an important index to evaluate the productivity and ecological function of the desert. Based on the vegetation index (VI) extracted from the canopy hyperspectral data of the individual plant canopy and the measured aboveground biomass,six kinds of univariate linear and non - linear regression analysis were obtained from the sand and salinity fields in the Shihezi area of the southern Gurbantunggut Desert. The results showed that quadratic function and power function between individual plant canopy NDVI showed strong correlation, of which two fitting equations were B = 7.8 - 112.61NDVI+447.37NDVI~2 (R_(adj)~2 = 0.813,RSS = 5.583) and B = 856.33NDVI~(3.41)(R_(adj)~2 = 0.817,RSS = 5.469),and aboveground biomass of the plant were estimated using two models. The analysis found that the estimated individual biomass of H. ammodendron was higher than the average,but there was no obvious regularity for the estimation of different developmental stages. The study was a useful attempt to estimate the H. ammodendron aboveground biomass using the hyperspectral data,and provided a useful reference for the large - scale estimation of aboveground biomass by using hyperspectral and optical image data in the future.
中文关键词	梭梭 ; 高光谱 ; 植被指数(VI) ; 地上生物量 ; 估算模型
英文关键词	Haloxylon ammodendron hyperspectrum vegetation index aboveground biomass estimation model
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6263161
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237715
作者单位	石河子大学农学院林学系, 石河子, 新疆 832003, 中国
推荐引用方式 GB/T 7714	李园园,楚光明,牛攀新,等. 基于地面高光谱遥感数据的梭梭地上生物量估算模型[J]. 石河子大学,2018,32(7):93-97.
APA	李园园,楚光明,牛攀新,李明艳,刘烈,&张洪波.(2018).基于地面高光谱遥感数据的梭梭地上生物量估算模型.干旱区资源与环境,32(7),93-97.
MLA	李园园,et al."基于地面高光谱遥感数据的梭梭地上生物量估算模型".干旱区资源与环境 32.7(2018):93-97.