Vegetation Coverage Classification and Vegetation Structure Parameters Extraction of Populus euphratica Forest in Ejina Oasis by LiDAR Data

doi:10.7522/j.issn.1000-694X.2017.00028

JOURNAL OF DESERT RESEARCH ›› 2017, Vol. 37 ›› Issue (4): 689-697.DOI: 10.7522/j.issn.1000-694X.2017.00028

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Vegetation Coverage Classification and Vegetation Structure Parameters Extraction of Populus euphratica Forest in Ejina Oasis by LiDAR Data

Su Yang^1,2, Qi Yuan¹, Wang Jianhua¹, Xu Feinan^1,2, Zhang Jinlong¹

1. Key Laboratory of Remote Sensing of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2017-01-13 Revised:2017-04-21 Online:2017-07-20 Published:2017-07-20

Abstract

Abstract: The climate is extremely arid,and the ecological environment is fragile in Ejina Oasis in lower reaches of the Heihe River.The vegetation cover and vegetation structure parameters of Populus euphratica forest are the basis of ecological environment assessment,vegetation change analysis and regional ecological and hydrological processes research in the region.In this study,vegetation coverage was classified,and vegetation structure parameters were extracted by the airborne LiDAR data,and the distribution and growth of P.euphratica riparian forest was analyzed.The P.euphratica,Tamarix and buildings were effectively discriminated in Ejina Oasis and the overall accuracy and Kappa coefficient of vegetation coverage classification were 95.86% and 0.91,respectively.The structure parameters of P.euphratica forest vegetation (tree height,crown diameter,DBH and leaf area index) were extracted at high accuracy level,which provided effective parameters for multi-scale ecological water consumption research.

Key words: LiDAR, Populus euphratica, vegetation coverage, vegetation structure parameters

CLC Number:

TP79

Su Yang, Qi Yuan, Wang Jianhua, Xu Feinan, Zhang Jinlong. Vegetation Coverage Classification and Vegetation Structure Parameters Extraction of Populus euphratica Forest in Ejina Oasis by LiDAR Data[J]. JOURNAL OF DESERT RESEARCH, 2017, 37(4): 689-697.

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Vegetation Coverage Classification and Vegetation Structure Parameters Extraction of Populus euphratica Forest in Ejina Oasis by LiDAR Data

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