Vegetation vulnerability to drought on southeastern Europe

Páscoa, Patrícia; Gouveia, Célia M.; Russo, Ana; Bojariu, Roxana; Vicente‐Serrano, Sergio M.; Trigo, Ricardo M.

doi:10.5194/hess-2018-264

Cited by 8 publications

(4 citation statements)

References 31 publications

(45 reference statements)

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“…Shi et al (2021) reported that in arid and semi-arid regions, these correlation mainly was observed in short time scales, which as Namak Lake basin is mostly dominated by arid and semi-arid climate, the results obtained in the present study are consistent with their results. Also, (Páscoa et al 2018;Zhang et al 2017) reported that since the plants have shallow-rooted in the rainfed agricultural lands, their water demand is mainly dependent on surface soil water content. On the other hand, in forests and shrublands, where there is permanent vegetation cover, the plants have deeper roots and can use moisture from deep soil water content or groundwater in long term.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the effect of climate fluctuations and human activities on vegetation dynamics and its vulnerability

Rahimabadi

Azarnivand

2023

Theor Appl Climatol

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It is necessary to evaluate the impacts of climate change and human activities on vegetation dynamics.The purpose of this study is to assess the linkage of vegetation cover and climate change and distinguish the contribution of climate change and human activities on vegetation and its vulnerability in Namak Lake basin, Iran. For this purpose, changes in the Enhanced Vegetation Index (EVI) in association with Standardized Precipitation Evapotranspiration Index (SPEI) during 2000-2019 were analyzed. Then, the roles of climate change and human activities on vegetation vulnerability were assessed in various Land Use Land Cover (LULC) classes using the residual analysis and Probability of Vegetation Vulnerability Index (PVVI). The results indicated that vegetation cover was mainly dependent on shortterm climatic changes and their correlation decreased with increasing time scale of SPEI. It re ected that short-term water availability was vital for vegetation growth. Also, the sparse vegetation cover was mainly more vulnerable to climate change. Residual analysis showed that the vegetation dynamics was intensively attributed to the climate change, so that climate change affected vegetation cover in 78.96% of the basin, while 15.58% was affected by human activities and 5.46% was affected by both factors. The value of PVVI in the regions affected by climatic change was the highest (55.99), in the regions affected by human activities it was lower (50.40), and in the regions affected by both factors was between the other two numbers (50.93). The results can provide useful recommendations for designing the restoration plans in arid and semi-arid areas.

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Section: Discussionmentioning

confidence: 99%

Assessment of the effect of climate fluctuations and human activities on vegetation dynamics and its vulnerability

Rahimabadi

Azarnivand

2023

Theor Appl Climatol

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“…The climate in the high altitude area changes with the increase of altitude, the radiation increases, and the temperature and precipitation decreased gradually. Due to the high sensitivity of grass to climate change, the growth of western alpine grass was limited (Nemani et al, 2003;Páscoa et al, 2018;Gao et al, 2019), thus shrinking the grass area in the western YRB (Table 2). With the gradual decrease of altitude, temperature and precipitation gradually increased as controlling factors influencing vegetation growth, and the change rate of temperature and precipitation would also gradually increase Frontiers in Earth Science frontiersin.org (Figure 2).…”

Section: Discussionmentioning

confidence: 99%

The quantitative effects of climate change and human activity on the vegetation growth in the Yangtze River Basin

Guo,

Cai,

Chen

2023

Front. Earth Sci.

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Vegetation has changed dramatically in recent years as a result of various disturbances, but the factors influencing vegetation growth vary geographically. We looked into the impact of climate change and human activity on vegetation growth in the Yangtze River Basin (YRB). We characterized vegetation growth in the YRB using gross primary production (GPP) and the leaf area index (LAI), analyzed the relationship between vegetation growth and climate change using the standardized precipitation evapotranspiration index (SPEI), and quantified the relative contribution rate of climate change and human activity to vegetation growth in the YRB by using residual trend method. The findings revealed that: 1) From 2000 to 2018, the YRB showed an increasing trend of temperature (0.03°C yr−1) and precipitation (4.02 mm yr−1) and that the entire area was gradually becoming warmer and wetter; 2) Vegetation growth in the YRB showed a significant increasing trend (GPP: 7.83 g C m−2 yr−2, LAI: 0.02 years‐1). Among them, 87.40% of the YRB showed an increasing trend, primarily in the northern, eastern, and southern parts, while decreasing areas were primarily found in the Yangtze River Delta (YRD) and the YRB’s west region. 3) Vegetation had a significant positive correlation with SPEI in most areas of the YRB, and it was more sensitive to SPEI over a long time scale. The effects of climate change and human activity on vegetation growth in the YRB were spatially heterogeneous, and climate change was the primary driving factors of vegetation change in the YRB (accounting for 61.28%). A large number of grass were converted into forest, crop and urban. Overall, climate change and human activity promoted the growth of vegetation in the middle and upper reaches of YRB (MUYRB) while inhibited the growth of vegetation in the YRD. The findings of this study will contribute to a better understanding of the effects of climate change and human activity on vegetation growth in the YRB, as well as provide a scientific foundation for future ecological restoration in humid and semi-humid areas.

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“…Amongst the monthly NDVIs, relatively more important appear those characterizing April and May, when vegetation activity, lower in the winter months, signifi cantly increases (Páscoa et al, 2018).…”

Section: Normalized Difference Vegetation Index (Ndvi)mentioning

confidence: 99%

Associations Between Habitat Quality and Body Size in the Carpathian-Podolian Land Snail Vestia turgida (Gastropoda, Clausiliidae): Species Distribution Model Selection and Assessment of Performance

Tytar¹

2021

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Species distribution models (SDMs) are generally thought to be good indicators of habitat suitability, and thus of species’ performance. Consequently SDMs can be validated by checking whether the areas projected to have the greatest habitat quality are occupied by individuals or populations with higher than average fi tness. We hypothesized a positive and statistically signifi cant relationship between observed in the fi eld body size of the snail V. turgida (Rossmässler, 1836) and modelled habitat suitability, tested this relationship with linear mixed models, and found that indeed, larger individuals tend to occupy high-quality areas, as predicted by the SDMs. However, by testing several SDM algorithms, we found varied levels of performance in terms of expounding this relationship. Marginal R2 expressing the variance explained by the fi xed terms in the regression models, was adopted as a measure of functional accuracy, and used to rank the SDMs accordingly. In this respect, the Bayesian additive regression trees (BART) algorithm gave the best result, despite the low AUC and TSS. By restricting our analysis to the BART algorithm only, a variety of sets of environmental variables commonly or less used in the construction of SDMs were explored and tested according to their functional accuracy. In this respect, the SDM produced using the ENVIREM data set gave the best result.

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Vegetation vulnerability to drought on southeastern Europe

Abstract: Abstract. In this work, the impacts of drought events on vegetation activity in the period 1998-2014 were analysed, on an area

Cited by 8 publications

References 31 publications

Assessment of the effect of climate fluctuations and human activities on vegetation dynamics and its vulnerability

Assessment of the effect of climate fluctuations and human activities on vegetation dynamics and its vulnerability

The quantitative effects of climate change and human activity on the vegetation growth in the Yangtze River Basin

Associations Between Habitat Quality and Body Size in the Carpathian-Podolian Land Snail Vestia turgida (Gastropoda, Clausiliidae): Species Distribution Model Selection and Assessment of Performance

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