Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation
Increasing occurrences of climate extreme events urge us to study their impacts on terrestrial carbon sequestration. Ecosystem potential productivity deficits could characterize such impacts and display the ecosystem vulnerability and resilience to the extremes in climate change, whereas few studies...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2013-01-01
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| Series: | Environmental Research Letters |
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| Online Access: | https://doi.org/10.1088/1748-9326/8/3/035021 |
| _version_ | 1797748136976842752 |
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| author | Kun Huang Shaoqiang Wang Lei Zhou Huimin Wang Yunfen Liu Fengting Yang |
| author_facet | Kun Huang Shaoqiang Wang Lei Zhou Huimin Wang Yunfen Liu Fengting Yang |
| author_sort | Kun Huang |
| collection | DOAJ |
| description | Increasing occurrences of climate extreme events urge us to study their impacts on terrestrial carbon sequestration. Ecosystem potential productivity deficits could characterize such impacts and display the ecosystem vulnerability and resilience to the extremes in climate change, whereas few studies have analyzed the yearly dynamics of forest potential productivity deficits. Based on a perfect-deficit approach, we used in situ eddy covariance flux data and meteorological observation data at Qianyanzhou station from 2003 to 2010 to explore the relationship between potential productivity and climate extremes, such as droughts in 2003 and 2007, ice rain in 2005, and an ice storm in 2008. We found (1) the monthly canopy photosynthetic capacity (CPC) deficits could be mainly explained by air temperature (Ta) deficits ( R ^2 = 0.45, p < 0.000 01); (2) a significant correlation was noted between seasonal CPC deficits and co-current Ta deficits ( R ^2 = 0.45, p < 0.000 01), especially in winter ( R ^2 = 0.79, p = 0.003); (3) drought in summer exerted a negatively lagged effect on potential productivity ( R ^2 = 0.59, p = 0.02), but at a short time scale; and (4) annual CPC deficits captured the impacts of climate extremes on the forest ecosystem potential productivity, and the two largest potential productivity deficits occurred in 2003 (relative CPC deficits = 0.34) and in 2005 (relative CPC deficits = 0.35), respectively. With the perfect-deficit approach, the forest ecosystem vulnerability to extremes was analyzed in a novel way. |
| first_indexed | 2024-03-12T16:00:34Z |
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| id | doaj.art-5d986eb1ac9745089d20c13c41092ff2 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T16:00:34Z |
| publishDate | 2013-01-01 |
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| series | Environmental Research Letters |
| spelling | doaj.art-5d986eb1ac9745089d20c13c41092ff22023-08-09T14:37:42ZengIOP PublishingEnvironmental Research Letters1748-93262013-01-018303502110.1088/1748-9326/8/3/035021Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observationKun Huang0Shaoqiang Wang1Lei Zhou2Huimin Wang3Yunfen Liu4Fengting Yang5Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing, 100101, People’s Republic of China; University of Chinese Academy of Sciences , Beijing, 100049, People’s Republic of ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing, 100101, People’s Republic of ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing, 100101, People’s Republic of China; University of Chinese Academy of Sciences , Beijing, 100049, People’s Republic of ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing, 100101, People’s Republic of ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing, 100101, People’s Republic of ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences , Beijing, 100101, People’s Republic of ChinaIncreasing occurrences of climate extreme events urge us to study their impacts on terrestrial carbon sequestration. Ecosystem potential productivity deficits could characterize such impacts and display the ecosystem vulnerability and resilience to the extremes in climate change, whereas few studies have analyzed the yearly dynamics of forest potential productivity deficits. Based on a perfect-deficit approach, we used in situ eddy covariance flux data and meteorological observation data at Qianyanzhou station from 2003 to 2010 to explore the relationship between potential productivity and climate extremes, such as droughts in 2003 and 2007, ice rain in 2005, and an ice storm in 2008. We found (1) the monthly canopy photosynthetic capacity (CPC) deficits could be mainly explained by air temperature (Ta) deficits ( R ^2 = 0.45, p < 0.000 01); (2) a significant correlation was noted between seasonal CPC deficits and co-current Ta deficits ( R ^2 = 0.45, p < 0.000 01), especially in winter ( R ^2 = 0.79, p = 0.003); (3) drought in summer exerted a negatively lagged effect on potential productivity ( R ^2 = 0.59, p = 0.02), but at a short time scale; and (4) annual CPC deficits captured the impacts of climate extremes on the forest ecosystem potential productivity, and the two largest potential productivity deficits occurred in 2003 (relative CPC deficits = 0.34) and in 2005 (relative CPC deficits = 0.35), respectively. With the perfect-deficit approach, the forest ecosystem vulnerability to extremes was analyzed in a novel way.https://doi.org/10.1088/1748-9326/8/3/035021climate extreme eventsforestpotential productivitydroughtice rain |
| spellingShingle | Kun Huang Shaoqiang Wang Lei Zhou Huimin Wang Yunfen Liu Fengting Yang Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation Environmental Research Letters climate extreme events forest potential productivity drought ice rain |
| title | Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation |
| title_full | Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation |
| title_fullStr | Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation |
| title_full_unstemmed | Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation |
| title_short | Effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation |
| title_sort | effects of drought and ice rain on potential productivity of a subtropical coniferous plantation from 2003 to 2010 based on eddy covariance flux observation |
| topic | climate extreme events forest potential productivity drought ice rain |
| url | https://doi.org/10.1088/1748-9326/8/3/035021 |
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