How the interplay between management and interannual climatic variability influences the NDVI variation in a sub-Mediterranean pastoral system: Insight into sustainable grassland use under climate change

Catorci, Andrea; Lulli, Roberto; Malatesta, Luca; Tavoloni, Marco; Tardella, Federico Maria

doi:10.1016/j.agee.2021.107372

Cited by 24 publications

(11 citation statements)

References 78 publications

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“…In Mediterranean-type ecosystems, the spring phenology trends show scattered spatial pattern according to a comprehensive study of Ivits et al [ 4 ]; over the southern Mediterranean region, an earlier start-of-season was observed, whereas over parts of the northern Mediterranean basin a growing season shift towards later dates was evident. Concerning the climate forcing of spring phenology trends, March rainfall was reported as the main driver of NDVI variability [ 42 ], whereas in accordance with our results Cabelo et al [ 43 ] also reported a trend for reduced spring precipitation which accounted for spring phenology variations. Temperature rising has also well documented consequences in vegetation phenology, especially in semi-arid ecosystems [ 49 , 50 , 51 ].…”

Section: Discussionsupporting

confidence: 90%

“…In semi-arid Mediterranean ecosystems, the high inter-annual variability of EVI suggests that the “memory effects” of previous year’s climate are minimized, as proposed by Catorci et al [ 42 ]. Therefore, our analysis of the relationship between phenological events and climatic drivers was focused on up to 6 months preceding each certain transition.…”

Section: Discussionmentioning

confidence: 99%

“…Spring phenology has been proved to be sensitive to climatic control in Mediterranean-type ecosystems, possibly due to the high variability of climatic parameters during spring [ 4 , 43 ]. Working with Mediterranean grasslands Catorci et al [ 42 ] reported that rainfall in March and drought stress in April and May were the main drivers of satellite-derived spring biomass production. Climatic parameters linked to moisture control are predominant in shaping vegetation response in Mediterranean, semi-arid and arid ecosystems [ 44 ].…”

Section: Discussionmentioning

confidence: 99%

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Climatic Drivers of the Complex Phenology of the Mediterranean Semi-Deciduous Shrub Phlomis fruticosa Based on Satellite-Derived EVI

Kyparissis

Levizou

2022

Plants

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A 21-year Enhanced Vegetation Index (EVI) time-series produced from MODIS satellite images was used to study the complex phenological cycle of the drought semi-deciduous shrub Phlomis fruticosa and additionally to identify and compare phenological events between two Mediterranean sites with different microclimates. In the more xeric Araxos site, spring leaf fall starts earlier, autumn revival occurs later, and the dry period is longer, compared with the more favorable Louros site. Accordingly, the control of climatic factors on phenological events was examined and found that the Araxos site is mostly influenced by rain related events while Louros site by both rain and temperature. Spring phenological events showed significant shifts at a rate of 1–4.9 days per year in Araxos, which were positively related to trends for decreasing spring precipitation and increasing summer temperature. Furthermore, the climatic control on the inter-annual EVI fluctuation was examined through multiple linear regression and machine learning approaches. For both sites, temperature during the previous 2–3 months and rain days of the previous 3 months were identified as the main drivers of the EVI profile. Our results emphasize the importance of focusing on a single species and small-spatial-scale information in connecting vegetation responses to the climate crisis.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Climatic Drivers of the Complex Phenology of the Mediterranean Semi-Deciduous Shrub Phlomis fruticosa Based on Satellite-Derived EVI

Kyparissis

Levizou

2022

Plants

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“…Many studies have recently examined the relationships between grassland growth and climate variables in different ecosystems and geographical regions. However, most of these studies have focused on the spatial and temporal variation in the relationship between NDVI obtained with satellite images and climate variables (Catorci et al, 2021; Guo et al, 2012; Li et al, 2021; Peng et al, 2021; Piao et al, 2006; Wang et al, 2011). Few studies have evaluated the relationship between measured daily grassland LAI and climate factors.…”

Section: Introductionmentioning

confidence: 99%

LAI‐based reduction in growth of semiarid grasslands and its responses to climate change on China's Loess Plateau

Niu

Fan

2023

Land Degrad Dev

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Understanding the response of vegetation growth to climate change can provide key information for predicting future ecosystem dynamics. Over the past 6 years, the semiarid regions of the Loess Plateau in China have experienced a transition from wet to dry years, but little is known about the response of grass growth to this change. Thus, this study aimed to analyze and evaluate the effect of climate change on grass growth. Using observed climate data and leaf area index (LAI) data obtained with hemispherical photography from 2016 to 2021, we investigated changes in trends of five climatic factors, including precipitation (P), temperature (T), relative humidity (RH), wind speed (WS), and solar radiation (Rs), and their impact on the growth of alfalfa (Medicago sativa) and Stipa bungeana plantations in the semiarid area of the Loess Plateau. The results showed a tendency to become colder in spring and drier in summer and autumn. In response, LAI tended to decrease in alfalfa and S. bungeana plots with interannual variation rates of 0.21 year−1 and 0.12 year−1, respectively. Additionally, linear regression methods showed that P had the greatest effect on LAI of two grasslands during the growing season (R2 > 0.84, p < 0.01), followed by RH and T (0.30 < R2 < 0.50, p < 0.01), a negative effect of WS (R2 = 0.36, p < 0.01), and no significant effect of Rs on LAI were found. Conversely, the path analysis indicated that Rs and P were the largest decision coefficients affecting the monthly LAI of alfalfa and S. bungeana, respectively, due to the different time‐to‐peak LAI and root growth depth of these two grass species. This study can provide theoretical support for ecological restoration and system management of semiarid grasslands.

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“…As far as leaf and flowering phenology are concerned, B. rupestre-dominated communities are characterized by temporal niche differentiation, which ensures species coexistence [44,45]. We expected that the decrease of B. rupestre led to the re-occupation of the most favorable period for flowering and photosynthesizing, i.e., in early summer at the maximum of phytomass production [46], reducing functional diversity (i.e., increased convergence). Specifically, our questions were:…”

Section: Introductionmentioning

confidence: 99%

Exploring Assembly Trajectories of Abandoned Grasslands in Response to 10 Years of Mowing in Sub-Mediterranean Context

Bricca

Tardella

Ferrara

et al. 2021

Land

Self Cite

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Abandoned semi-natural grasslands are characterized by lower plant diversity as a consequence of tall grasses spreading. Mowing is a widely used restoration practice, but its effects to maintain the restored diversity over time is poorly investigated in sub-Mediterranean grasslands. Since 2010 in the central Apennines, we fenced a grassland, invaded by Brachypodium rupestre, which was mowed twice a year. Before the experiment started, we recorded species cover in 30 random sampling units (0.5 m × 0.5 m). The sampling was repeated every two years for a total of ten years. We used linear mixed-effect models to investigate the trajectory of functional diversity and community weighted mean for traits related to space occupation, resource exploitation, temporal niche exploitation, and Grime’s CSR strategies. The reduction of the weaker competitor exclusion exerted by B. rupestre affected the functional plant community. In the short term (4–6 years), this fostered space occupation strategies, decreasing convergence of clonal strategies and horizontal space occupation types. In the longer term (8–10 years), mowing filtered ruderal strategies, i.e., species with faster resource acquisition (lower leaf dry matter content, LDMC). LDMC and CSR strategies, initially convergent due to the dominance of B. rupestre, lowered convergence over time due to higher differentiation of strategies.

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How the interplay between management and interannual climatic variability influences the NDVI variation in a sub-Mediterranean pastoral system: Insight into sustainable grassland use under climate change

Cited by 24 publications

References 78 publications

Climatic Drivers of the Complex Phenology of the Mediterranean Semi-Deciduous Shrub Phlomis fruticosa Based on Satellite-Derived EVI

Climatic Drivers of the Complex Phenology of the Mediterranean Semi-Deciduous Shrub Phlomis fruticosa Based on Satellite-Derived EVI

LAI‐based reduction in growth of semiarid grasslands and its responses to climate change on China's Loess Plateau

Exploring Assembly Trajectories of Abandoned Grasslands in Response to 10 Years of Mowing in Sub-Mediterranean Context

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