Q
Qi Chen
Researcher at University of Hawaii
Publications - 90
Citations - 5535
Qi Chen is an academic researcher from University of Hawaii. The author has contributed to research in topics: Lidar & Population. The author has an hindex of 35, co-authored 84 publications receiving 4405 citations. Previous affiliations of Qi Chen include University of California, Berkeley & University of Hawaii at Manoa.
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Improving non-representative-sample prediction of forestaboveground biomass maps: A combined machinelearning and spatial statistical approach
TL;DR: In this article, a low-cost approach that combines machine learning with spatial statistics to construct a regional AGB map from non-representative sample units is proposed, and the experimental results demonstrate that the combined methods can improve the accuracy of AGB mapping.
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QuickBird image-based estimation of tree stand density using local maxima filtering method: A case study in a Beijing forest.
Shuhan Wang,Xiaoli Zhang,Mohammed Abdelmanan Hassan,Qi Chen,Chaokui Li,Zhiguang Tang,Yanjun Wang +6 more
TL;DR: The proposed method uses a combination of high spatial resolution imagery and sampling plots strategy to estimate stand density and the optimal selection was identified by testing the different combination of Normalized Difference Vegetation Index thresholds and window sizes.
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Assessing the vulnerability to climate change of a semi-arid pastoral social–ecological system: A case study in Hulunbuir, China
TL;DR: Wang et al. as mentioned in this paper developed a conceptual framework of climate-livelihood vulnerability in semi-arid pastoral social-ecological systems and evaluated the vulnerability of SAPSES to climate change effects and environmental pressure in Hulunbuir, China.
Journal ArticleDOI
Stand density extraction and analysis of plantations based on QuickBird and Worldview-2 images
TL;DR: In this article, a spectral local maximum filtering method was used to extract the number of individual trees in a mountain forest and a nonlinear quadratic polynomial regression model was established for the local maximum points and the actual stand density.
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Fu-Zheng-Tong-Luo formula promotes autophagy and alleviates idiopathic pulmonary fibrosis by controlling the Janus kinase 2/signal transducer and activator of transcription 3 pathway.
Xing-Tang Zhang,Jiacheng Lin,Jiamin Wu,Yi-bao Zhang,Qi Chen,Zi-jian Su,Gui-hua Xu,Meng Sun,Yi-le Zhang,Xuan Chen,Wei Zhang +10 more
TL;DR: Fu-Zheng-Tong-Luo (FZTL) formula is a Chinese herbal prescription which is used to treat idiopathic pulmonary fibrosis (IPF) as discussed by the authors .