Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015
Growth and senescence rates are critical ecological indicators of seasonality shifts of vegetation, with both sensitive to climate change. Here we investigated daily mean vegetation growth and senescence rates, and the major climate forcing across the Northern Hemisphere (>30°N) using satellite-d...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Global Ecology and Conservation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989423002573 |
| _version_ | 1797676273677369344 |
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| author | Wendu Rina Gang Bao Quansheng Hai Jiquan Chen Enliang Guo Fei Li Yuhai Bao Lijuan Miao Xiaojun Huang |
| author_facet | Wendu Rina Gang Bao Quansheng Hai Jiquan Chen Enliang Guo Fei Li Yuhai Bao Lijuan Miao Xiaojun Huang |
| author_sort | Wendu Rina |
| collection | DOAJ |
| description | Growth and senescence rates are critical ecological indicators of seasonality shifts of vegetation, with both sensitive to climate change. Here we investigated daily mean vegetation growth and senescence rates, and the major climate forcing across the Northern Hemisphere (>30°N) using satellite-derived normalized difference vegetation index (NDVI) and flux-based gross primary productivity (GPP) from 1982 through 2015. Both growth and senescence rates are higher at high latitudes than those at low latitudes, with spatially-averaged values increased by 1.0 × 10−4 and 0.7 × 10−4 NDVI-units·day−1 per degree latitude. These increases were greater in Eurasia than in North America. A parallel acceleration of growth (0.8 ×10−4 NDVI-units·day−1·decade−1) and senescence (0.6 ×10−4 NDVI-units·day−1·decade−1) rates was found for the 34-year study period. The warming-induced increases in vegetation peak growth (peak NDVI) contributed strongly to this parallel acceleration, while unequal advances or delays of three key phenological indicators (the start (SOS), peak (POS), and end (EOS) of the growing season) exerted influential effects on the rates. However, no single climatic factor during any period appeared responsible for the variations in growth and senescence rates. In areas with growth and senescence rates that are determined by peak growth, temperature and precipitation during the growth period accelerated both rates through elevating peak growth. On the other hand, in areas with growth rate determined by SOS, rising temperature before SOS decelerated the growth rate by advancing SOS. In areas with senescence rate determined by EOS, both temperature and radiation during the senescence period contributed to changes in senescence rate by influencing EOS. In sum, a central focus should be placed on the linkages among climate, phenology, and growth and senescence rates for quantifying vegetation seasonality and associated ecosystem function under the changing climate. |
| first_indexed | 2024-03-11T22:25:37Z |
| format | Article |
| id | doaj.art-29169f1b65e6418e8460856b04db4a10 |
| institution | Directory Open Access Journal |
| issn | 2351-9894 |
| language | English |
| last_indexed | 2024-03-11T22:25:37Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
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| series | Global Ecology and Conservation |
| spelling | doaj.art-29169f1b65e6418e8460856b04db4a102023-09-24T05:15:36ZengElsevierGlobal Ecology and Conservation2351-98942023-10-0146e02622Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015Wendu Rina0Gang Bao1Quansheng Hai2Jiquan Chen3Enliang Guo4Fei Li5Yuhai Bao6Lijuan Miao7Xiaojun Huang8College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, China; Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems, Inner Mongolia Normal University, Hohhot 010022, ChinaCollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, China; Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems, Inner Mongolia Normal University, Hohhot 010022, China; Corresponding author at: College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, China.Department of Geography, School of Arts and Sciences, National University of Mongolia, Ulaanbaater 14200, Mongolia; Baotou Normal College, Baotou 014030, ChinaDepartment of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, MI 48823, USACollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, ChinaGrassland Research Institute, Chinese Academy of Agricultural Sciences, Hohhot 010010, ChinaCollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, China; Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems, Inner Mongolia Normal University, Hohhot 010022, ChinaSchool of Geographical Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaCollege of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, China; Inner Mongolia Key Laboratory of Remote Sensing and Geographic Information Systems, Inner Mongolia Normal University, Hohhot 010022, ChinaGrowth and senescence rates are critical ecological indicators of seasonality shifts of vegetation, with both sensitive to climate change. Here we investigated daily mean vegetation growth and senescence rates, and the major climate forcing across the Northern Hemisphere (>30°N) using satellite-derived normalized difference vegetation index (NDVI) and flux-based gross primary productivity (GPP) from 1982 through 2015. Both growth and senescence rates are higher at high latitudes than those at low latitudes, with spatially-averaged values increased by 1.0 × 10−4 and 0.7 × 10−4 NDVI-units·day−1 per degree latitude. These increases were greater in Eurasia than in North America. A parallel acceleration of growth (0.8 ×10−4 NDVI-units·day−1·decade−1) and senescence (0.6 ×10−4 NDVI-units·day−1·decade−1) rates was found for the 34-year study period. The warming-induced increases in vegetation peak growth (peak NDVI) contributed strongly to this parallel acceleration, while unequal advances or delays of three key phenological indicators (the start (SOS), peak (POS), and end (EOS) of the growing season) exerted influential effects on the rates. However, no single climatic factor during any period appeared responsible for the variations in growth and senescence rates. In areas with growth and senescence rates that are determined by peak growth, temperature and precipitation during the growth period accelerated both rates through elevating peak growth. On the other hand, in areas with growth rate determined by SOS, rising temperature before SOS decelerated the growth rate by advancing SOS. In areas with senescence rate determined by EOS, both temperature and radiation during the senescence period contributed to changes in senescence rate by influencing EOS. In sum, a central focus should be placed on the linkages among climate, phenology, and growth and senescence rates for quantifying vegetation seasonality and associated ecosystem function under the changing climate.http://www.sciencedirect.com/science/article/pii/S2351989423002573Vegetation growth and senescence ratesPeak growthPhenologyNorthern HemisphereClimate-phenology-canopy development linkages |
| spellingShingle | Wendu Rina Gang Bao Quansheng Hai Jiquan Chen Enliang Guo Fei Li Yuhai Bao Lijuan Miao Xiaojun Huang Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015 Global Ecology and Conservation Vegetation growth and senescence rates Peak growth Phenology Northern Hemisphere Climate-phenology-canopy development linkages |
| title | Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015 |
| title_full | Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015 |
| title_fullStr | Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015 |
| title_full_unstemmed | Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015 |
| title_short | Parallel acceleration of vegetation growth rate and senescence rate across the Northern Hemisphere from 1982 to 2015 |
| title_sort | parallel acceleration of vegetation growth rate and senescence rate across the northern hemisphere from 1982 to 2015 |
| topic | Vegetation growth and senescence rates Peak growth Phenology Northern Hemisphere Climate-phenology-canopy development linkages |
| url | http://www.sciencedirect.com/science/article/pii/S2351989423002573 |
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