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The Cooling Trend of Canopy Temperature During the Maturation, Succession, and Recovery of Ecosystems
Lin, Hua; Fan, Zexin; Shi, Leilei; et al
2017
Source PublicationECOSYSTEMS
Volume20Issue:2Pages:406-415
AbstractThe maximum exergy dissipation theory provides a theoretical basis for using surface temperature to measure the status and development of ecosystems, which could provide an early warning of rapid evaluation of ecosystem degradation. In the present study, we used the radiation balance of ecosystems to demonstrate this hypothesis theoretically. Further, we used empirical data to verify whether ecosystems gain more radiation, while lowering their surface temperatures, as they develop naturally. We analyzed 12 chronosequences from the FLUXNET database using meteorological data and heat fluxes. We included age, disturbance, and successional chronosequences across six climate zones. Net radiation (R (n)) and the ratio of net radiation to global radiation (R (n)/R (g)) were used to measure the energy gain of the ecosystems. The maximum daily air temperature above the canopy (T (max)) and thermal response number (TRN) were used to analyze the surface temperature trends with ecosystem natural development. The general trends of T (max), TRN, R (n), and R (n) /R (g) demonstrated that ecosystems become cooler and more stable, yet gain more energy, throughout their natural development. Among the four indicators, TRN showed the most consistent trends and highest sensitivity to ecosystem growth, succession, and recovery. Moreover, TRN was not significantly influenced by precipitation or wind. We propose that TRN can be used to rapidly evaluate or warn of ecosystem disturbance, senescence, and degradation without prior knowledge of species composition, nutrient status, and complex ecosystem processes.
KeywordTerrestrial Vegetation Ecosystem Succession Surface Temperature Temperature Stability Thermal Response Forest Degradation
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10338
Collection2012年后新成立研究组
Recommended Citation
GB/T 7714
Lin, Hua,Fan, Zexin,Shi, Leilei,et al. The Cooling Trend of Canopy Temperature During the Maturation, Succession, and Recovery of Ecosystems[J]. ECOSYSTEMS,2017,20(2):406-415.
APA Lin, Hua,Fan, Zexin,Shi, Leilei,&et al.(2017).The Cooling Trend of Canopy Temperature During the Maturation, Succession, and Recovery of Ecosystems.ECOSYSTEMS,20(2),406-415.
MLA Lin, Hua,et al."The Cooling Trend of Canopy Temperature During the Maturation, Succession, and Recovery of Ecosystems".ECOSYSTEMS 20.2(2017):406-415.
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