Assessing Earthquake-Induced Tree Mortality in Temperate Forest Ecosystems: A Case Study from Wenchuan, China
| Autor: | Hongcheng Zeng, Robinson I. Negrón-Juárez, Hillary S. Jenkins, Jiceng Xu, Tao Lu |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences synthetic approach earthquake remote sensing forest mortality biomass carbon loss Science Classical Physics 010603 evolutionary biology 01 natural sciences Physical Geography and Environmental Geoscience Ecosystem China Stock (geology) 0105 earth and related environmental sciences Hydrology Empirical modelling Temperate forest Field survey Biomass carbon Good Health and Well Being Geomatic Engineering Epicenter General Earth and Planetary Sciences Environmental science |
| Zdroj: | Remote Sensing, vol 8, iss 3 Remote Sensing, Vol 8, Iss 3, p 252 (2016) Zeng, H; Lu, T; Jenkins, H; Negrón-Juárez, RI; & Xu, J. (2016). Assessing earthquake-induced tree mortality in temperate forest ecosystems: A case study from wenchuan, china. Remote Sensing, 8(3). doi: 10.3390/rs8030252. Lawrence Berkeley National Laboratory: Retrieved from: http://www.escholarship.org/uc/item/9bq5q20t Remote Sensing; Volume 8; Issue 3; Pages: 252 |
| Popis: | © 2016 by the authors. Earthquakes can produce significant tree mortality, and consequently affect regional carbon dynamics. Unfortunately, detailed studies quantifying the influence of earthquake on forest mortality are currently rare. The committed forest biomass carbon loss associated with the 2008 Wenchuan earthquake in China is assessed by a synthetic approach in this study that integrated field investigation, remote sensing analysis, empirical models and Monte Carlo simulation. The newly developed approach significantly improved the forest disturbance evaluation by quantitatively defining the earthquake impact boundary and detailed field survey to validate the mortality models. Based on our approach, a total biomass carbon of 10.9 Tg·C was lost in Wenchuan earthquake, which offset 0.23% of the living biomass carbon stock in Chinese forests. Tree mortality was highly clustered at epicenter, and declined rapidly with distance away from the fault zone. It is suggested that earthquakes represent a significant driver to forest carbon dynamics, and the earthquake-induced biomass carbon loss should be included in estimating forest carbon budgets. |
| Databáze: | OpenAIRE |
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