Ecohydrology最新文献

{"title":"Effect of Forest Management Practices on Water Balance Across a Water–Energy Gradient in the Upper Kings River Basin, USA","authors":"Stefano Casirati,&nbsp;Martha H. Conklin,&nbsp;Saswata Nandi,&nbsp;Mohammad Safeeq","doi":"10.1002/eco.2753","DOIUrl":"https://doi.org/10.1002/eco.2753","url":null,"abstract":"<p>Headwater watersheds and forests play a crucial role in ensuring water security for the western United States. Reducing forest biomass from the current overgrown forests can mitigate the severity and impact of wildfires and offer additional competing ecohydrological benefits. A reduction in canopy interception and transpiration following forest treatments can lead to an increase in available water for the remaining trees and runoff. However, the impact of forest management on water balance can be highly variable due to differences in climate, topography, location and vegetation. In this study, we used the Soil Water Assessment Tool Plus model to investigate how decisions regarding location, intensity and scale of forest treatments can affect both evapotranspiration and streamflow in a large watershed such as the upper Kings River Basin (3998 km²). The model was parameterized using a multiobjective calibration of streamflow, snow water equivalent and evapotranspiration. Various forest treatment scenarios were simulated across different years and regions in the landscape. Modelling results show that during dry years, streamflow gains from biomass reduction are primarily originated from energy-limited regions (i.e., 82% of total streamflow increase in the first year). In water-limited regions, the water is prioritized for sustaining remaining trees, improving forest health and recharging subsurface storage, rather than increasing streamflow. During wet years, the contribution to streamflow from biomass reduction comes from both energy- and water-limited areas. These findings emphasize the importance of evaluating forest treatments on a larger scale. The competing benefits for forests and downstream users are driven by the energy and water limitations of the vegetation targeted by forest treatments, as well as the climate variability that modulates the water availability and forest recovery time.</p>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.2753","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143248419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Substantial Decline in the Groundwater in the Ten Kongduis Basin in the Loess Plateau During 2001–2020","authors":"Jinkai Luan,&nbsp;Xiaojie Li,&nbsp;Shahid Naeem,&nbsp;Amit Kumar,&nbsp;Ping Miao,&nbsp;Ruidong Wang,&nbsp;Zhenqi Yang,&nbsp;Hongli Ma,&nbsp;Ning Ma","doi":"10.1002/eco.2764","DOIUrl":"https://doi.org/10.1002/eco.2764","url":null,"abstract":"<div>\u0000 \u0000 <p>The Loess Plateau has experienced obvious greening because of anthropogenically induced vegetation restoration. However, the impact of ecological restoration on groundwater storage over the past two decades remains unclear, though it is widely known that the growth of plants in this region depends heavily on groundwater. Such a knowledge gap is partly due to the scarcity of groundwater monitoring data. Here, this study reconstructed the groundwater level records in a typical basin in the Loess Plateau (the Ten Kongduis basin) spanning from 2001 to 2020 using an emergent relationship between the cumulative surface water fluxes over a 12-month moving window and the groundwater level changes. The long-term reconstruction suggests a persistent decreasing trend in the groundwater level from 2001 to 2020, with a short period of recovery observed between 2011 and 2013. In particular, the declining trend notably intensified after 2013, indicating an accelerated depletion of groundwater in the most recent few years. Further attribution analysis suggests that the decrease in groundwater levels was primarily attributed to the increasing evapotranspiration because of extensive vegetation restoration. Additionally, the development and utilization of regional groundwater resources also play an important role in this phenomenon. Our results provide crucial insights into the management and utilization of groundwater resources in the Loess Plateau, thus highlighting that a more sustainable strategy for future adaptation must be planned in this water-scarce region.</p>\u0000 </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143248420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecohydrological Engineering for the Sustainable Management of Water–Biota Interactions","authors":"Saverio Perri,&nbsp;Simon Levin,&nbsp;Amilcare Porporato","doi":"10.1002/eco.70002","DOIUrl":"https://doi.org/10.1002/eco.70002","url":null,"abstract":"<p>Ecohydrology engineering provides a valuable framework for addressing emerging environmental challenges by integrating ecological and environmental engineering principles. In this study, we discuss the potential of parsimonious, physically based ecohydrological models through the lens of three case studies: sustainable irrigation, urban heat island mitigation via green roofs and mangrove restoration for climate change mitigation. First, we investigate sustainable irrigation strategies, illustrating the trade-offs between water conservation and soil salinization. This highlights the delicate balance required to optimize crop yield while mitigating soil degradation. Second, we explore the role of green roofs in urban heat island mitigation, showing how vegetation and water dynamics on rooftops can enhance latent heat flux, thereby potentially reducing urban temperatures and improving building energy efficiency. Lastly, we assess the climate mitigation potential of mangrove restoration, accounting for the impacts of salinization and sea-level rise. We demonstrate that carbon sequestration in mangrove ecosystems may be strongly limited by productivity reduction due to salinity and reduced area availability under sea-level rise. These case studies illustrate the strengths of simplified ecohydrological models in capturing critical feedbacks and interdependencies between water and biota across diverse environments. By prioritizing adaptive, resilient strategies, EE offers a practical pathway for developing innovative, context-sensitive solutions that leverage ecosystem dynamics to address pressing environmental issues.</p>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.70002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143111540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Groundwater Flow on Microbial Activity in a Porous Limestone Groundwater","authors":"Shinji Nakaya,&nbsp;Tatsuya Deno,&nbsp;Jun Yasumoto,&nbsp;Ryogo Takada","doi":"10.1002/eco.70000","DOIUrl":"https://doi.org/10.1002/eco.70000","url":null,"abstract":"<div>\u0000 \u0000 <p>Microbial metabolism in aerobic conditions releases carbon dioxide into the groundwater in the aquifer, while carbon dioxide controls the dissolution/precipitation of calcite and the hydration reaction under field conditions. Higher microbial activity produces more adenosine triphosphate (ATP) and vice versa. In this study, to elucidate the effect of groundwater flow on microbial activity in porous limestone groundwater, the relationship between water chemistry and ATP as a microbial activity index was investigated in groundwater in the Ryukyu limestone groundwater reservoir on Yoron Island, a subtropical island in southwestern Japan. The results in groundwater of a porous limestone groundwater reservoir suggest that (1) microbial activity caused by floating microorganisms in natural groundwater flow depends on dissolved oxygen and reflects that the calcite dissolution/precipitation behaviour and the hydration reaction proceed and (2) fast-flowing groundwater flow induced by artificial pumping suppresses the microbial activity caused by floating microorganisms in groundwater, despite the introduction of sufficient dissolved oxygen necessary for metabolism, and reduces the links between the microbial activity in groundwater and water-rock interaction.</p>\u0000 </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143121051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Habitat Unit Mapping in Large River: Combining Ecological Opinions and Hydrodynamic Modelling to Inform River Management","authors":"Qingrong Xie,&nbsp;Li Wang,&nbsp;Shengfa Yang,&nbsp;Shuaishuai Zhang,&nbsp;Yi Xiao,&nbsp;Peng Zhang,&nbsp;Jiang Hu,&nbsp;Wenjie Li,&nbsp;Jin Yang","doi":"10.1002/eco.2767","DOIUrl":"https://doi.org/10.1002/eco.2767","url":null,"abstract":"<div>\u0000 \u0000 <p>Restoration of complex river ecosystems requires an understanding of the availability of habitat for populations and multi-scale choices. Habitat unit (HU) mapping classifies river habitats, aiding in establishing the connection between the physical and biological conditions of rivers. Mid-scale HU classification can effectively predict fish habitat utilization patterns and has been developed and applied in numerous small to medium-sized river classifications. However, the delimitation of habitat units (HUs) for large rivers remains in its preliminary stages. This study used a two-dimensional (2D) hydrodynamic numerical model to calculate hydrodynamic data and forms ecological expert opinions based on the swimming abilities of typical fish species and geomorphic characteristics. A HU mapping procedure was constructed to describe the mesohabitat heterogeneity of HUs in the fluctuating backwater areas of the upper Yangtze River. Results indicated: (1) Rich diversity of habitats in the investigated river segment. HUs exhibit evident patterns in their planar, longitudinal, and lateral distribution. (2) Discharge magnitude influences the stability of HUs, leading to transitions between HU types. During the storage and falling periods, no dominant HU was observed, whereas the fast channel unit dominates during flood period, resulting in a reduction of the preferred habitat of fish. (3) Field monitoring of fish communities validates the potential of HU mapping in describing habitat utilization, which HUs such as pools and riffles were favoured by fish, while fast channel and slackwater unit were actively avoided, confirming the efficacy of the procedure. This research holds significant implications for habitat restoration in river management.</p>\u0000 </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling the Influence of Vegetation on the Stochastic Dynamics of Coastal Dunes","authors":"Kiran Adhithya Ramakrishnan,&nbsp;Orencio Duran Vinent","doi":"10.1002/eco.2766","DOIUrl":"https://doi.org/10.1002/eco.2766","url":null,"abstract":"<div>\u0000 \u0000 <p>Coastal dunes are the highest natural features on a barrier island, where they protect beach communities, infrastructure and low-energy back-barrier ecosystems from flooding and erosion during storms and other high-water events. Their formation, and poststorm recovery, is a result of a subtle competition between the physical and biological processes controlling the initial stages of dune growth. Vegetation colonises a barren back-beach and traps wind-driven (aeolian) sand to form dunes, but at low enough elevation, plants can be eroded by water-driven transport during random flooding events, which slows down or prevents dune formation. This competition has been previously investigated using both process-based and analytical models. However, the effect of finite vegetation recovery times together with the precise stochastic nature of flooding events has not been taken into account before. A recent stochastic dune model assumed that vegetation grows and recovers instantaneously, whereas an existing process-based dune model, the Coastal Dune Model (CDM), did not properly resolve the stochastic flooding events. Here, we address this knowledge gap by adding a much more realistic description of high-water events of the stochastic model to CDM and investigate the role of vegetation growth and recovery times in dune formation. We first replicate the stochastic model predictions assuming instantaneous vegetation growth. We then define the vegetation colonisation time and relate it to the initial dune formation time. Since dune formation requires the presence of vegetation, a finite colonisation time leads to an expected lag in dune formation and recovery. Depending on the competition between vegetation growth and aeolian erosion, we find that dune dynamics can be divided into two regimes: one with a stable (static) vegetated dune and another one with a mobile, partially vegetated, dune propagating landward. Within the stable dune regime, the influence of vegetation on dune recovery is solely controlled by the relation between the vegetation colonisation time, the dune growth time after plant colonisation and the return period of high-water events flooding the back-beach. We introduce two control parameters based on these times and use them to describe a simplified phase space of the dune state. We then find a simple analytical expression for the transition from a ‘high’ state with mature dunes to a ‘low’ state devoid of dunes based on the competition between dune recovery time controlled by vegetation and the flooding frequency. Finally, we use the transition threshold to propose a vulnerability indicator for dune recovery as the minimum elevation after an overwash required for vegetation to recover.</p>\u0000 </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Turbulent Flow Structure in a Symmetric Compound Channel With Flexible Emergent Vegetation Over Floodplains","authors":"Laxman V. Rathod,&nbsp;P. V. Timbadiya,&nbsp;Bandita Barman","doi":"10.1002/eco.2763","DOIUrl":"https://doi.org/10.1002/eco.2763","url":null,"abstract":"<div>\u0000 \u0000 <p>An experimental study was conducted to investigate the influence of emergent flexible floodplain (FP) vegetation on the turbulent flow structure in a symmetric compound channel. The foliage patterns of the artificial flexible vegetation used in our experimental sets were as follows: no vegetation, homogeneous grass and shrubs and a heterogeneous mixture of grass and shrubs arranged in a staggered pattern. An analysis of the velocity data revealed an observable decrease in velocity across the FP owing to the presence of vegetation and a significant increase in the mean streamwise velocity in the middle of the main channel (MC). The effect was higher in the case of heterogeneous vegetation. This indicates that a heterogeneous mixture of grass and shrubs provides a higher resistance than homogeneous grass or shrubs separately. It enhances the lateral momentum transfer owing to the fast-moving MC flow and low-velocity FP flow. The turbulent kinetic energy (TKE) and Reynolds shear stress (RSS) were higher in the vegetative MC than in the non-vegetative channel. In contrast, these were lower in the vegetative FP than in the non-vegetative FP. An octant analysis showed a decrease in ejection events in both FP and MC and an increase in sweep events in the MC owing to FP vegetation. The reduction in ejection events contributed to the breakdown of vortices and reduced turbulence. Meanwhile, the increase in sweep events enhanced the sediment entrainment. These results indicate that heterogeneous FP vegetation significantly affects the flow dynamics and turbulent parameters in a compound channel.</p>\u0000 </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Pond System on Surface Temperature and Urban Cooling","authors":"Quang-Viet Nguyen,&nbsp;Viet Huong-Do Thi","doi":"10.1002/eco.2760","DOIUrl":"https://doi.org/10.1002/eco.2760","url":null,"abstract":"<div>\u0000 \u0000 <p>A greener city is an emerging tendency for urban managers to deal with ongoing urbanization and climate change. One natural-based solution gaining prominence is the incorporation of blue spaces, such as ponds, to regulate microclimates and alleviate urban heat island effects. The study focuses on investigating the inherent properties of a pond system, including morphological characteristics and environmental indicators that influence pond surface temperature (PST). Additionally, the study explores the cooling effects of the pond system, examining both the extent and intensity of cooling. To conduct this analysis, data on land surface temperature and land use/land cover types are extracted from Landsat-8 and Sentinel-2 images, respectively. The study, encompassing 709 ponds, reveals that the perimeter edge predominantly influences the PST (<i>β</i> = −0.857) while the area and shape ratio moderately affect the PST (<i>β</i> = 0.259 and 0.296, respectively). Moreover, mean elevation demonstrates a reducing effect on the PST (<i>β</i> = −0.214). The study utilizes polynomial regression and the concept of the first turning point to identify two critical cooling indicators of the pond system. Consequently, the cooling extent is defined at 140 m and the intensity at 2.7°C. These indicators offer valuable insights into the inherent properties influencing PST and contribute to the understanding of cooling mechanisms in the pond system. The implications of these findings extend to urban planning, particularly in the realm of blue space design, where the evidence presented can guide strategies to tackle the impacts of urbanization and climate change.</p>\u0000 </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supply–Demand Synergy Assessment of the Water–Energy–Food Nexus in the Hanjiang River Basin Under Future Land Scenarios","authors":"Weiqi Yuan,&nbsp;Hongxiang Wang,&nbsp;Wenxian Guo","doi":"10.1002/eco.2762","DOIUrl":"https://doi.org/10.1002/eco.2762","url":null,"abstract":"<div>\u0000 \u0000 <p>Understanding the supply–demand matching and trade-offs of ecosystem services is crucial for formulating land use policies. However, there remains a lack of clear understanding on how to coordinate the supply–demand mismatch of ecosystem services under different future scenarios. In examining the Hanjiang River Basin (HJRB), this study utilizes the PLUS and InVEST models to evaluate present spatiotemporal changes in water yield (WY), carbon storage (CS) and food provision (FP) within the water–energy–food nexus context. It further explores the spatiotemporal patterns and correlation analysis of the WEF nexus across varying scenarios. The findings suggest the following: (1) Between 2000 and 2020, there was a notable rise in both forest and built-up land. Compared to the year 2020, in the cropland protection scenario (CPS), cropland increased by 2.19%. In the ecological protection scenario (EPS), forest area increased significantly by 4.06%. In the natural growth scenario (NGS), the largest increase was observed in construction land, which expanded by 26.31%. (2) Land use and cover change (LUCC) has a limited impact on the WEF nexus supply, accounting for about 1%. From 2000 to 2020, both WY and CS's ESDR exhibited a ‘decrease-followed-by-increase’ trend, while FP's ESDR gradually increased, with only the mismatched area between supply and demand for WY decreasing. (3) Unlike the grid scale, the WEF nexus correlation at the county/city scale has significantly increased, and intense LUCC will alter the synergy and trade-offs within the WEF nexus. Additionally, there exists a pronounced spatial misalignment between CS and WY. Therefore, this study can provide a comprehensive reference for land use planning aimed at achieving the coordinated development of humans and nature.</p>\u0000 </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detecting Forest-Wetland Changes in Northwestern Canada's Discontinuous Permafrost Region Using Landsat Trend Analysis","authors":"Olivia Carpino,&nbsp;Stephanie Wright,&nbsp;Jiaao Guo,&nbsp;Jurjen van der Sluijs,&nbsp;Ryan Connon,&nbsp;William Quinton","doi":"10.1002/eco.2759","DOIUrl":"https://doi.org/10.1002/eco.2759","url":null,"abstract":"<p>Rapid circumpolar warming has led to accelerated permafrost thaw that has induced extensive landscape change in northwestern Canada. In northwestern Canada's discontinuous permafrost zone, forest-dominated peatland landscapes, which were largely underlain by permafrost, are transitioning to treeless, wetland-dominated landscapes that are permafrost-free. Previous studies that focused on permafrost thaw-induced landscape transitions in boreal peatlands have used aerial photographs and/or high-resolution satellite images acquired only at end nodes or decadal intervals across each study's time frame. This study uses a dense near-annual resolution of mosaicked Landsat imagery to determine if changes can be detected to peatland landscapes over a 37-year period for 10 study sites across a latitudinal transect through the southern Northwest Territories and northern British Columbia, Canada. Tasselled cap (TC) transformations (brightness, greenness and wetness) are applied to the Landsat imagery and compared with forest cover changes (1970–2010) derived from high resolution areal imagery to visually assess the performance of this method in revealing forest-wetland changes driven by permafrost thaw. While methods based on Landsat TC trends have been successfully applied in northwestern Canada with forest fires and mass wasting, this study explores pixel trends as well as time series for more gradual thaw-induced changes across peat plateaus, collapse scar wetlands and channel fens. This study demonstrates that TC transformations can be used to determine differing brightness, greenness and wetness trajectories for individual landcovers within permafrost peatlands (i.e., forest, collapse scar wetland and fen). However, the subtle and non-monotonic landcover and hydrologic changes resulting from decades of permafrost thaw can be more challenging to detect. At the regional scale, widespread spectral greening was observed that was not solely indicative of forest cover or density increases, whereby TC trends were not consistent with expected permafrost thaw-induced landscape changes. This work suggests that TC transformations may be limited in use for assessing broad-scale effects of gradual permafrost thaw processes that occur at high temporal and spatial frequencies.</p>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.2759","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}