Environmental and biological controls on monthly and annual evapotranspiration in China’s Loess Plateau

Yang, Zesu; Qiang, Zhang; Hao, Xiaolei

doi:10.1007/s00704-018-2701-4

Cited by 5 publications

(2 citation statements)

References 42 publications

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“…In dry grasslands under water-limited conditions, the available energy, precipitation, and soil water content were found to be the primary factors driving the inter-annual variability of water and energy fluxes during the growing season Liu et al, 2010;Wilske et al, 2010;Yang et al, 2019b . Therefore, many studies have been conducted to improve our understanding of the interactions and coupling mechanisms among the energy, soil, water, and vegetation.…”

Section: Multi-site Synthesismentioning

confidence: 99%

“…showed that the main factors controlling the daily LE were net radiation in normal years and soil water content in the dry season. Yang et al 2019b argued that leaf area index LAI is not suitable for estimating the ET of semi-arid natural vegetation, even though it is useful for identifying the physiological constraints on ET. Wilske et al 2010 found that, among the inputs of the FAO-Penman-Monteith model, the soil water potential and available energy were the main drivers in semiarid shrub-dominated ecosystems.…”

Section: Multi-site Synthesismentioning

confidence: 99%

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Progress in water and energy flux studies in Asia: A review focused on eddy covariance measurements

Kang¹,

Cho

2021

J. Agric. Meteorol.

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The eddy covariance EC technique-based observation system allows for researchers to determine latent and sensible heat fluxes, which are key components of the surface energy balance. The number of water and energy flux studies in Asia has increased as the number of flux measurement sites and the length of the observation periods have grown. To retrace the footprints of the AsiaFlux network and predict future research directions, we reviewed the progress in water and energy flux studies in Asia from the 1990s to the present day. This included studies on continuous evapotranspiration ET and surface energy balance measurements in various ecosystems, from the tropics to the polar regions. We also reviewed comparative experiments between the EC technique and other observation techniques including the use of a lysimeter or scintillometer, data processing techniques, connections between carbon and water fluxes, and multi-site syntheses. This paper discusses three remaining challenges that are hindering the derivation of scientific knowledge for ET and the surface energy balance, namely: the non-closure of the surface energy budget, imperfect compatibility between open-and closed-path gas analyzers, and difficulty in partitioning ET into evaporation and transpiration. If we leverage the advantages of the EC technique i.e., high sampling rates of ≥ 10 Hz and continuous measurement capabilities , standardized methods for correcting and partitioning can be developed in the near future.

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Section: Multi-site Synthesismentioning

confidence: 99%

Section: Multi-site Synthesismentioning

confidence: 99%

Progress in water and energy flux studies in Asia: A review focused on eddy covariance measurements

Kang¹,

Cho

2021

J. Agric. Meteorol.

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Dissecting changes in evapotranspiration and its components across the Losses Plateau of China during 2001–2020

Sun,

Ma,

Liu

et al. 2024

Intl Journal of Climatology

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China's Losses Plateau (LP) is one of the ecologically vulnerable and the most severe soil erosion regions. Thus, knowing spatiotemporal changes in evapotranspiration (ET) and its components (soil evaporation, E; transpiration, T; and vegetation interception evaporation, EI) and revealing the underlying mechanisms are vital for ecosystem and water resources sustainability for this region. Here, we investigate the spatiotemporal changes in ET and its components and then quantify the impacts of climate variables (i.e., precipitation, radiation, temperature, and relative humidity) and vegetation dynamics (e.g., land use/cover changes [LUCC] and changes in leaf area index [LAI]) on their annual trends, by using a process‐based terrestrial ecosystem model and a joint‐solution method with multiple sensitivity numerical experiments. Results show that over 67% of the study region experienced significant (p < 0.05) increases in annual ET, T, and EI, with regional average rises of 4.05, 3.67, and 0.74 mm·year−1, respectively. However, there are significant (p < 0.05) decreases in regional mean E of 0.38 mm·year−1, and the negative trend covers 35.8% of the study area. E, T, and EI changes dominate the annual ET trends over 11.8%, 87.3%, and 0.9% of the study area, respectively. Attribution analyses highlight the increased LAI as the critical factor governing these trends across most of the LP (>58%). At the same time, precipitation and LUCC play a more dominant role in the remaining areas. This study emphasizes the spatial heterogeneity in the drivers of changes in ET and its components and highlights the critical role of vegetation dynamics. These findings provide valuable insights for understanding the ET processes and guiding sustainable water resource management in the LP.

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Cascade effects of climate and vegetation influencing the spatial variation of evapotranspiration in China

Ma,

Yu,

Chen

et al. 2024

Agricultural and Forest Meteorology

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Environmental and biological controls on monthly and annual evapotranspiration in China’s Loess Plateau

Cited by 5 publications

References 42 publications

Progress in water and energy flux studies in Asia: A review focused on eddy covariance measurements

Progress in water and energy flux studies in Asia: A review focused on eddy covariance measurements

Dissecting changes in evapotranspiration and its components across the Losses Plateau of China during 2001–2020

Cascade effects of climate and vegetation influencing the spatial variation of evapotranspiration in China

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