Revisiting assessments of ecosystem drought recovery

Liu, Laibao; Gudmundsson, Lukas; Hauser, Mathias; Qin, Dahe; Li, Shuangcheng

doi:10.1088/1748-9326/ab4c61

Cited by 35 publications

(37 citation statements)

References 48 publications

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“…On the contrary, Yu et al () found an opposing pattern suggesting the drought recovery time is shortest in the tropics and high northern latitudes lasting for less than 4 months to recover to its pre‐drought condition. Following this controversy, a revisiting assessment on the drought recovery time was made by Liu et al () to understand the underlying reasons. Liu et al () found that the study time frame employed, methods used for drought identification, the definitions used in detecting the recovery level and consideration of non‐impactful droughts (droughts that did not show ecosystem production reduction) are main contributing factors that lead to a strong bias in understanding the drought recovery time.…”

Section: Drought Impact On Socio‐environmental Systems and Its Mitigamentioning

confidence: 99%

“…Following this controversy, a revisiting assessment on the drought recovery time was made by Liu et al () to understand the underlying reasons. Liu et al () found that the study time frame employed, methods used for drought identification, the definitions used in detecting the recovery level and consideration of non‐impactful droughts (droughts that did not show ecosystem production reduction) are main contributing factors that lead to a strong bias in understanding the drought recovery time. Furthermore, Liu et al () indicated that the drought recovery time is longest in some tropical regions but not in high northern latitudes.…”

Section: Drought Impact On Socio‐environmental Systems and Its Mitigamentioning

confidence: 99%

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Drought: Progress in broadening its understanding

et al. 2019

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Drought affects many aspects of society and its impact is global. To this end, rendering recurrent drought occurrences is a key research focus. Recently, in addition to existing knowledge, progress in scientific advancements regarding drought have been observed on a regional and global scale. Here, we reviewed and outlined current and emerging scientific developments in drought, focusing on progress made in recent years. In the human‐modified world, the anthropogenic effects on drought were dominant and drought‐frequency showed a prominent increase. In this study, we have identified the development of drought concepts, types, and indices, and their indicators were developed as sector‐specific, comprehensive, and oriented towards multiple scales. Anthropogenic changes have enhanced hydrological processes and affected the development of drought. Urbanization, deforestation, and related human activities have aggravated drought. Climate change has had an exacerbating role in drought, which is expected to increase during the 21st century. Human communities, in particular, are undertaking activities that cause droughts; suffering from and coping with their impact. In addition, the direct and indirect effects of drought need reconsideration. As such, the health impact of droughts is a concern in drought‐vulnerable societies and its burden on public health is largely unknown. The need for drought recovery to aid in effective ecosystem functioning in the aftermath of the drought and the development of mitigation measures to alleviate recurrent drought is critical. Enhanced drought monitoring and management options are required under existing environmental and socio‐economic setups in the 21st century. This article is characterized under: Science of Water > Water Extremes Engineering Water > Planning Water Water and Life > Stresses and Pressures on Ecosystems

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Section: Drought Impact On Socio‐environmental Systems and Its Mitigamentioning

confidence: 99%

Section: Drought Impact On Socio‐environmental Systems and Its Mitigamentioning

confidence: 99%

Drought: Progress in broadening its understanding

et al. 2019

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“…In general, it is still difficult to accurately estimate GPP at regional and global scales. This limitation in GPP data may cause dubious conclusions when assessing the effects of drought on GPP using a few or different GPP estimates (Liu et al, 2019). For example, Schewe et al (2019) found that current TEMs underestimate the impact of drought on GPP due to the insufficient representation of both natural processes and human management in the models.…”

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confidence: 99%

Response of Gross Primary Productivity to Drought Time‐Scales Across China

Sun

Zhang

et al. 2021

JGR Biogeosciences

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Terrestrial gross primary productivity (GPP) plays an important role in terrestrial-atmosphere system carbon cycles and contributes to human welfare, as it is the basis for food, fiber, and wood production (Beer et al., 2010). Although rising atmospheric CO 2 has increased GPP in many regions of the world during the last several decades (Schimel et al., 2015;Tharammal et al., 2019), factors such as drought, heat stress, and nutrient limitations decrease GPP, and their effects are poorly understood at regional scale due to

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“…To identify a drought event, previous studies used the meteorological drought index (Standardized Precipitation Evapotranspiration Index, SPEI) and Drought Severity Index (DSI) (Liu et al, 2019;Schwalm et al, 2017;Yu et al, 2017). Climate data-based SPEI is easy to estimate for long-term analysis but it is not linked to plant condition (Vicente-Serrano et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Detecting Agricultural and Meteorological Drought With Gross Primary Production Recovery Including Spatiotemporal Statistical Analysis in East Africa's Lake Victoria Basin

Hao

Baik

Fred

et al. 2021

Preprint

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Drought imposes severe, long-term effects on global environments and ecosystems. A better understanding of how long it takes a region to recover to pre-drought conditions after drought is essential for addressing future ecology risks. In this study, drought-related variables were obtained using remote sensing and reanalysis products for 2003 to 2016. The meteorological drought index (standardized precipitation evapotranspiration index [SPEI]) and agricultural drought index (vegetation condition index [VCI]) were employed to estimate drought duration time (DDT) and drought recovery time (DRT). To the basin’s west, decreasing rainfall and increasing potential evapotranspiration led to decreasing SPEI. On the east side, decreasing soil moisture from each depth effects vegetation condition, which results in a decreasing gross primary productivity and VCI. Extreme meteorological drought events are likely to occur in the basin’s northeastern and middle western areas, while the southern basin is more likely to suffer from extreme agricultural drought events. The mean SPEI-based DDT (2.45 months) was smaller than the VCI-based DDT (2.97 months); the average SPEI-based DRT (2.02 months) was larger than the VCI-based DRT (1.63 months). Most of the area needs 1 or 2 months to recover from drought except for the basin’s northwestern area, where the DRT is more than 8 months. DDT is the most important parameter in determining DRT. These results provide useful information about regional drought recovery that will help local governments looking to mitigate potential environmental risks and formulate appropriate agricultural policies in Lake Victoria Basin.

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Revisiting assessments of ecosystem drought recovery

Cited by 35 publications

References 48 publications

Drought: Progress in broadening its understanding

Drought: Progress in broadening its understanding

Response of Gross Primary Productivity to Drought Time‐Scales Across China

Detecting Agricultural and Meteorological Drought With Gross Primary Production Recovery Including Spatiotemporal Statistical Analysis in East Africa's Lake Victoria Basin

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