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World Affairs Online
Supply-induced demand for medical services under price regulation: Evidence from hospital expansion in China
In: China economic review, Band 68, S. 101642
ISSN: 1043-951X
Enhanced Citizenship Verification and Children's Medicaid Coverage
In: Andrew Young School of Policy Studies Research Paper Series No. 15-03
SSRN
Working paper
High-Cr and High-Al Podiform Chromitites, Western China: Relationship to Partial Melting and Melt/Rock Reaction in the Upper Mantle
In: International Geology Review, Band 36, Heft 7, S. 678-686
Geochemistry and Tectonic Significance of Basaltic Lavas in the Neoproterozoic Yanbian Group, Southern Sichuan Province, Southwest China
In: International Geology Review, Band 49, Heft 6, S. 554-571
Stratification of vertical canopy structure to improve estimation of forest inventory attributes using airborne LiDAR data in a large subtropical region of China
In: Annals of Forest Research: journal of forestry and environmental sciences, Band 66, Heft 2, S. 101-120
ISSN: 2065-2445
Over the last two decades, airborne light detection and ranging (LiDAR) has been developed into an advanced tool for practical forest resource inventory monitoring over large areas. Nonetheless, improving the accuracy of forest inventory attribute estimations remains an ongoing challenge. This paper introduces a novel framework for estimating forest inventory attributes based on the stratification of vertical forest structures (VFS). According to the composition and spatial arrangement of the superior, middle, and inferior strata in the tree layer, the forest stand was classified into six distinct VFS classes. Subsequently, the multiplicative power models were established for the stratification-based estimations of the forest inventory attributes, including stand volume (VOL), basal area (BA), and above-ground biomass (AGB), by using a rule-based exhaustive combination approach, and their performances were comparatively analyzed. The result indicated that: compared to the accuracy (relative root mean squared error, rRMSE) of the species-based estimation, the weighted average rRMSE of stratumbased VOL, BA, and AGB estimations of four forest types (Chinese fir, Masson pine, eucalyptus, and broadleaf forests) decreased by 0.3%–7.3%, +3.6%–9.4%, and 0.7%–8.7%, respectively, and the accuracy was significantly improved after stratification. Even after clustering the VFS into two or three classes using cluster analysis, the accuracy of forest attribute estimations remained superior to that of the species-based estimations. Notably, the coefficients of variation for both forest attributes and LiDAR metrics experienced a substantial decrease, and their statistical relationship considerably strengthened within most strata post-VFS classification, which led to an improvement in the accuracy of the forest attribute estimations. The methodology presented in this paper provides a significant advance in improving the accuracy of forest inventory attributes for large areas using airborne LiDAR data.
Paleoproterozoic Rift-Related Volcanism of the Xiong'er Group, North China Craton: Implications for the Breakup of Columbia
In: International Geology Review, Band 44, Heft 4, S. 336-351
The Mayari-Baracoa Paired Ophiolite Belt, Eastern Cuba: Implications for Tectonic Settings and Platinum-Group Elemental Mineralization
In: International Geology Review, Band 43, Heft 6, S. 494-507
Development of Generalized Estimation Models of Forest Inventory Attributes Using an Exhaustive Combination of Airborne Lidar-Derived Metrics
In: FORECO-D-22-00745
SSRN
What Happened to Disparities in CRC Screening Among FFS Medicare Enrollees Following Medicare Modernization?
In: Journal of racial and ethnic health disparities: an official journal of the Cobb-NMA Health Institute, Band 6, Heft 2, S. 273-291
ISSN: 2196-8837
Preparation of regenerated keratin sponge from waste feathers by a simple method and its potential use for oil adsorption
In: Environmental science and pollution research: ESPR, Band 21, Heft 8, S. 5730-5736
ISSN: 1614-7499
Role of Crustal Contamination in Formation of the Jinchuan Intrusion and Its World-Class Ni-Cu-(PGE) Sulfide Deposit, Northwest China
In: International Geology Review, Band 48, Heft 12, S. 1113-1132
Tectonic Evolution of the West Kunlun: Geochronologic and Geochemical Constraints from Kudi Granitoids
In: International Geology Review, Band 44, Heft 7, S. 653-669
N6-methyladenosine facilitates arsenic-induced neoplastic phenotypes of human bronchial epithelial cells by promoting miR-106b-5p maturation
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 283, S. 116803
ISSN: 1090-2414
Carrier-free poly(glycyrrhetinic acid)-facilitated celastrol-loaded nanoparticle for high-efficiency low-toxicity treatment of rheumatoid arthritis
In: Materials and design, Band 241, S. 112951
ISSN: 1873-4197