Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in Eurasia
While global vegetation shows widespread greening under climate change, the corresponding impacts on Net Ecosystem Production (NEP)—particularly the divergent responses between drylands and non-drylands—remain poorly understood. In this study, based on the Normalized Difference Vegetation Index (NDV...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-05-01
|
| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X25003759 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849697519047540736 |
|---|---|
| author | Rui Yang Hao Yuan Ruohua Du Litao Zhou Jianjun Wu Liang Gao Ting Mao |
| author_facet | Rui Yang Hao Yuan Ruohua Du Litao Zhou Jianjun Wu Liang Gao Ting Mao |
| author_sort | Rui Yang |
| collection | DOAJ |
| description | While global vegetation shows widespread greening under climate change, the corresponding impacts on Net Ecosystem Production (NEP)—particularly the divergent responses between drylands and non-drylands—remain poorly understood. In this study, based on the Normalized Difference Vegetation Index (NDVI), Solar-Induced Chlorophyll Fluorescence (SIF), Gross Primary Productivity (GPP), and NEP, we analyzed the spatiotemporal dynamics of vegetation photosynthesis and NEP across Eurasia from 1982 to 2018, and explored their differential responses to environmental factors, with particular focus on the contrasting mechanisms between drylands and non-drylands. The results showed that the rate of increase in NEP standardized anomalies (0.004 yr−1, p < 0.05) lagged behind NDVI/SIF/GPP standardized anomalies (0.009 − 0.014 yr−1, p < 0.01), particularly after 2000, and it was more pronounced in drylands. Spatially, vegetation photosynthesis and NEP changed asynchronously in nearly one-third of Eurasia, with a slightly higher proportion in non-dryland areas and the most obvious patterns in forests and croplands. Explainable machine learning analysis revealed that this asynchrony was primarily driven by interactions among temperature, vapor pressure deficit (VPD), and evapotranspiration. Vegetation photosynthesis was mainly influenced by evapotranspiration, while NEP was constrained by increased VPD. Moreover, in drylands, NEP was highly sensitive to atmospheric moisture, whereas in non-drylands, temperature fluctuations played a dominant role. These findings offer important insights for regional carbon sequestration management and climate change adaptation strategies. |
| format | Article |
| id | doaj-art-d4f3e15a5f304b298ff730f987228721 |
| institution | DOAJ |
| issn | 1470-160X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj-art-d4f3e15a5f304b298ff730f9872287212025-08-20T03:19:11ZengElsevierEcological Indicators1470-160X2025-05-0117411344510.1016/j.ecolind.2025.113445Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in EurasiaRui Yang0Hao Yuan1Ruohua Du2Litao Zhou3Jianjun Wu4Liang Gao5Ting Mao6State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaState Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaState Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaState Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaState Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Corresponding author.Academy of Ecological Civilization Development for JING-JIN-JI Megalopolis, Tianjin Normal University, Tianjin 300387, ChinaState Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Beijing Engineering Research Center for Global Land Remote Sensing Products, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; Faculty of Geographical Science, Beijing Normal University, Beijing 100875, ChinaWhile global vegetation shows widespread greening under climate change, the corresponding impacts on Net Ecosystem Production (NEP)—particularly the divergent responses between drylands and non-drylands—remain poorly understood. In this study, based on the Normalized Difference Vegetation Index (NDVI), Solar-Induced Chlorophyll Fluorescence (SIF), Gross Primary Productivity (GPP), and NEP, we analyzed the spatiotemporal dynamics of vegetation photosynthesis and NEP across Eurasia from 1982 to 2018, and explored their differential responses to environmental factors, with particular focus on the contrasting mechanisms between drylands and non-drylands. The results showed that the rate of increase in NEP standardized anomalies (0.004 yr−1, p < 0.05) lagged behind NDVI/SIF/GPP standardized anomalies (0.009 − 0.014 yr−1, p < 0.01), particularly after 2000, and it was more pronounced in drylands. Spatially, vegetation photosynthesis and NEP changed asynchronously in nearly one-third of Eurasia, with a slightly higher proportion in non-dryland areas and the most obvious patterns in forests and croplands. Explainable machine learning analysis revealed that this asynchrony was primarily driven by interactions among temperature, vapor pressure deficit (VPD), and evapotranspiration. Vegetation photosynthesis was mainly influenced by evapotranspiration, while NEP was constrained by increased VPD. Moreover, in drylands, NEP was highly sensitive to atmospheric moisture, whereas in non-drylands, temperature fluctuations played a dominant role. These findings offer important insights for regional carbon sequestration management and climate change adaptation strategies.http://www.sciencedirect.com/science/article/pii/S1470160X25003759Terrestrial ecosystemCarbon cycleClimate changeEurasiaDrylands |
| spellingShingle | Rui Yang Hao Yuan Ruohua Du Litao Zhou Jianjun Wu Liang Gao Ting Mao Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in Eurasia Ecological Indicators Terrestrial ecosystem Carbon cycle Climate change Eurasia Drylands |
| title | Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in Eurasia |
| title_full | Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in Eurasia |
| title_fullStr | Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in Eurasia |
| title_full_unstemmed | Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in Eurasia |
| title_short | Temperature-VPD-evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in Eurasia |
| title_sort | temperature vpd evapotranspiration interactions modulated asynchronous dynamics of vegetation photosynthesis and net ecosystem production in eurasia |
| topic | Terrestrial ecosystem Carbon cycle Climate change Eurasia Drylands |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X25003759 |
| work_keys_str_mv | AT ruiyang temperaturevpdevapotranspirationinteractionsmodulatedasynchronousdynamicsofvegetationphotosynthesisandnetecosystemproductionineurasia AT haoyuan temperaturevpdevapotranspirationinteractionsmodulatedasynchronousdynamicsofvegetationphotosynthesisandnetecosystemproductionineurasia AT ruohuadu temperaturevpdevapotranspirationinteractionsmodulatedasynchronousdynamicsofvegetationphotosynthesisandnetecosystemproductionineurasia AT litaozhou temperaturevpdevapotranspirationinteractionsmodulatedasynchronousdynamicsofvegetationphotosynthesisandnetecosystemproductionineurasia AT jianjunwu temperaturevpdevapotranspirationinteractionsmodulatedasynchronousdynamicsofvegetationphotosynthesisandnetecosystemproductionineurasia AT lianggao temperaturevpdevapotranspirationinteractionsmodulatedasynchronousdynamicsofvegetationphotosynthesisandnetecosystemproductionineurasia AT tingmao temperaturevpdevapotranspirationinteractionsmodulatedasynchronousdynamicsofvegetationphotosynthesisandnetecosystemproductionineurasia |