Ecohydrology最新文献_第10页

Valuation of forest-management and wildfire disturbance on water and carbon fluxes in mountain headwaters 森林管理和野火扰动对山区源头水流和碳通量的影响评估

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-03-28 DOI: 10.1002/eco.2642

Min Gon Chung, Han Guo, Charity Nyelele, Benis N. Egoh, Michael L. Goulden, Catherine M. Keske, Roger C. Bales

{"title":"Valuation of forest-management and wildfire disturbance on water and carbon fluxes in mountain headwaters","authors":"Min Gon Chung, Han Guo, Charity Nyelele, Benis N. Egoh, Michael L. Goulden, Catherine M. Keske, Roger C. Bales","doi":"10.1002/eco.2642","DOIUrl":"10.1002/eco.2642","url":null,"abstract":"Recent drought, wildfires and rising temperatures in the western US highlight the urgency of increasing resiliency in overstocked forests. However, limited valuation information hinders the broader participation of beneficiaries in forest management. We assessed how historical disturbances in California's Central Sierra Nevada affected live biomass, forest water use and carbon uptake and estimated marginal values of these changes. On average, low-severity wildfire caused greater declines in forest evapotranspiration (ET), gross primary productivity (GPP) and live biomass than did commercial thinning. Low-severity wildfires represent proxies for prescribed burns and both function as biomass removal to alleviate overstocked conditions. Increases in potential runoff over 15 years post-disturbance were valued at $108,000/km2 for commercial thinning versus $234,000/km2 for low-severity wildfire, based on historical water prices. Respective declines in GPP were valued at −$305,000 and −$1,317,000/km2, based on an average social cost of carbon. Considering biomass levels created by commercial thinning and low-severity fire as more-sustainable management baselines for overstocked forests, carbon uptake over 15 years post-disturbance can be viewed as a benefit rather than loss. Realizing this benefit upon management re-entry may require sequestering thinned material. High-severity wildfire and clearcutting resulted in greater declines in ET and thus greater potential water benefits but also substantial declines in GPP and live carbon. These lessons from historical disturbances indicate what benefit ranges from fuels treatments can be expected from more-sustainable management of mixed-conifer forests and the importance of setting an appropriate baseline.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140323327","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}

引用次数: 0

Is nonrainfall water a likely water source for arid and semiarid biocrusts? A critical perspective 非降雨水是否可能成为干旱和半干旱生物群落的水源？批判性视角

IF 2.5 3区环境科学与生态学

Ecohydrology Pub Date : 2024-03-27 DOI: 10.1002/eco.2647

Giora J. Kidron

{"title":"Is nonrainfall water a likely water source for arid and semiarid biocrusts? A critical perspective","authors":"Giora J. Kidron","doi":"10.1002/eco.2647","DOIUrl":"10.1002/eco.2647","url":null,"abstract":"It is commonly believed that nonrainfall water (NRW) serves as an important and even a central source of water for biocrusts in arid and semiarid regions. Known also as biological soil crusts, they mainly consist of cyanobacteria (that dwell within the upper 2 mm of the soil) and crustose chlorolichens that commonly protrude 1–2 mm above ground. It is commonly assumed that due to the prolonged dry season in deserts, a constant source of water is required for their survival. Overestimated, nonrealistic NRW values, whether due to the use of improper measurement devices or erroneous interpretation of the recorded values as well as instances during which distillation was regarded as dewfall, supported the notion that the amounts of NRW are sufficiently high to allow for biocrust activation. In the current commentary, a short account of the reasons that led scholars to believe that NRW may be utilized by biocrusts is presented, and the findings that led to this belief are critically analysed. It is argued that the amounts of NRW reaching the surface are below the critical thresholds of 0.05 and 0.1 mm required for net photosynthesis by the chlorolichens and cyanobacteria, respectively. Moreover, it is argued that even if these thresholds are seldom reached, their duration is too short to result in net carbon gain. As shown for the dewy Negev and may be applicable for other arid and semiarid regions, biocrusts rely on rainwater for their growth and survival.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 5","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140323326","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}

引用次数: 0

Assessment of environmental water strategies for improving fringing vegetation health by modelling vegetation condition in a connected floodplain lakes system 通过模拟相连洪泛平原湖泊系统中的植被状况，评估改善边缘植被健康的环境水战略

IF 2.5 3区环境科学与生态学

Ecohydrology Pub Date : 2024-03-19 DOI: 10.1002/eco.2644

Chunying Wu, J. Angus Webb, Michael J. Stewardson

{"title":"Assessment of environmental water strategies for improving fringing vegetation health by modelling vegetation condition in a connected floodplain lakes system","authors":"Chunying Wu, J. Angus Webb, Michael J. Stewardson","doi":"10.1002/eco.2644","DOIUrl":"10.1002/eco.2644","url":null,"abstract":"Across the globe, environmental water has been allocated with the purpose of preserving the health and vitality of floodplain vegetation. However, the influences of environmental water volume and environmental water delivery strategies have not been studied widely because of shortage of on-ground monitoring data. Remotely sensed data can bridge this gap by providing long-term and continuous information; Landsat imagery from 1988 to 2020 was used in this research. We used the normalized difference vegetation index (NDVI) as an indicator of physiological condition of lake-fringing trees on the Hattah Lakes floodplain, south-east Australia. We employed the random forest (RF) regression method to model the relationship between NDVI and various climate and hydrological factors, such as the volume of water delivered to the connected lakes system as environmental water allocations or natural floods. The RF models performed well overall, with a mean R2 value of 0.73. The analysis identified the monthly total of environmental water delivered 3 months prior to the Landsat image date as a more crucial factor than natural floods over the same period for driving vegetation condition. Environmental water from 3 months previously exerts a positive influence on NDVI until the volume reaches a specific threshold. We have observed significant improvements in floodplain vegetation through the current environmental water strategy, particularly since the construction of pumping infrastructure in 2013. We suggest that managers aim to inundate the lake fringing area every 3 years, specifically from August to September, by delivering environmental water up to the modelled threshold volume. Finally, the use of infrastructure has proven to be an effective and efficient method for irrigating floodplain lakes, leading to improvements in vegetation condition while conserving water resources.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 4","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.2644","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140171487","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}

引用次数: 0

Frogs and flows: Using life-history traits and a systematic review to establish water-dependent functional groups for stream frogs in New South Wales, Australia 青蛙与水流：利用生命史特征和系统回顾，为澳大利亚新南威尔士州的溪流青蛙建立依赖水的功能组群

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-03-18 DOI: 10.1002/eco.2643

Daniel W. Coleman, Rebecca J. Wood, Michael Healey

{"title":"Frogs and flows: Using life-history traits and a systematic review to establish water-dependent functional groups for stream frogs in New South Wales, Australia","authors":"Daniel W. Coleman, Rebecca J. Wood, Michael Healey","doi":"10.1002/eco.2643","DOIUrl":"10.1002/eco.2643","url":null,"abstract":"Hydrological alteration has contributed to the global decline of stream frogs. Flows support stream frog reproduction, juvenile development, food resources, and maintain habitats for all life stages. At present, there is a lack of information regarding the specific water requirements necessary for the conservation of stream frogs. To address this gap, we developed a traits-based approach that serves as a valuable tool for grouping and prioritising water-dependent stream frog species to inform future research priorities and environmental flow design. In this study, we focussed on 53 Australian frog species and analysed eight species traits to develop water-dependent functional groups for stream frogs. We classified frogs based on their level of water dependency using an agglomerative hierarchical clustering analysis and a systematic review of water requirements and water management threats. The distinguishing traits that determined functional groups were: tadpole body type, egg clutch type, stream breeding habitat type, and documented association with flowing water and water permanence. Our study identified two distinct water-dependent groups: facultative stream spawners, capable of reproducing in both stream and non-stream habitats, and obligate stream spawners, restricted solely to stream habitats. Importantly, we highlight that the obligate stream spawners are the most sensitive group to within-channel flow alteration and should be prioritised for water management decisions in lotic environments. This study represents the first comprehensive overview of the importance of hydrology for stream frogs and identifies the critical need for additional research and validation to enhance our understanding of stream frog responses to flows regimes.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.2643","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140149382","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}

引用次数: 0

δ2H isotopic offsets in xylem water measurements under cryogenic vacuum distillation: Quantifying and correcting wood-water hydrogen exchange influences 低温真空蒸馏条件下木质部水分测量中的δ2H同位素偏移：木材-水氢交换影响的量化和校正

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-03-16 DOI: 10.1002/eco.2640

Seth E. Younger, John Blake, C. Rhett Jackson, Doug P. Aubrey

{"title":"δ2H isotopic offsets in xylem water measurements under cryogenic vacuum distillation: Quantifying and correcting wood-water hydrogen exchange influences","authors":"Seth E. Younger, John Blake, C. Rhett Jackson, Doug P. Aubrey","doi":"10.1002/eco.2640","DOIUrl":"10.1002/eco.2640","url":null,"abstract":"Stable isotopes δ18O and δ2H are used to infer vegetation water sources. In some studies, significant xylem water δ2H offsets from potential source waters have been observed. The offsets appear to be more prevalent with cryogenic vacuum distillation (CVD) of plant water. Hypothesized mechanisms for these offsets include changes during plant water uptake and transport, and methodological problems. We propose that a large portion of the offsets are due to hydrogen isotope exchange between xylem water and non-crystalline hydroxyl groups of wood cellulose and hemicellulose during CVD. We present a method for estimating the hypothesized isotopic exchange between wood tissues and water, which is the result of Rayleigh and equilibrium fractionation. To estimate the exchange, we use published wood properties for North American tree species and isotope chemical relationships as a function of moisture content, CVD temperature and water extraction efficiency. A simple model of exchange between xylem water and hydroxyl groups captures the range of observations in studies in which CVD and non-CVD methods were compared. To evaluate the model, we compared observed δ2H offsets (sw-excess) values from two field datasets (90°C, n = 364, and 170°C, n = 43) to δ2H offsets estimated with our chemical model. We found good agreement between observed and estimated δ2H offsets for samples extracted at 90°C (r2 = 0.69) but not for samples extracted at 170°C (r2 = 0.20). The offset may be eliminated by increasing the extraction temperature to 229°C or by adding a standard sufficient to raise the moisture content to >150%. A correction can also be approximated by applying a theoretical calculation based on the extraction temperature, moisture content and water extraction efficiency.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.2640","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140149393","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}

引用次数: 0

Peat swamp hydrological connectivity and runoff vary by hydrogeomorphic setting: Implications for carbon storage 泥炭沼泽的水文连通性和径流因水文地质环境而异：对碳储存的影响

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-03-07 DOI: 10.1002/eco.2637

Colin McCarter, Stephen Kaufman, Brian Branfireun, James Waddington

{"title":"Peat swamp hydrological connectivity and runoff vary by hydrogeomorphic setting: Implications for carbon storage","authors":"Colin McCarter, Stephen Kaufman, Brian Branfireun, James Waddington","doi":"10.1002/eco.2637","DOIUrl":"10.1002/eco.2637","url":null,"abstract":"Despite their importance in carbon cycling and catchment runoff dynamics, the hydrology of temperate peat swamps in response to changing hydrometeorological conditions is largely understudied. We examined the importance of hydrogeomorphic settings in controlling hydrological connectivity and runoff in a temperate peat swamp in southern Ontario, Canada over two consecutive growing seasons with contrasting conditions (dry and wet years). We chose two different small-scale hydrogeomorphic settings to investigate: (i) a site with strong wetland-stream interactions (i.e., an unconfined stream channel; unconfined) and (ii) a site with limited wetland-stream interactions (confined).During the wet year, the confined site exhibited a consistently gaining stream, maintaining lateral hydrological connectivity and yielding high runoff ratios, while during the dry year, the confined site lost water and experienced low runoff ratios during storm events. Overland flow at the unconfined site maintained a longitudinal hydrological connectivity delivering water to its sub-catchment outflow, as reinforced by hydrochemical observations. This connectivity was maintained in the wet year but ceased in the dry year despite consistent upstream sub-catchment water inflow due to high depression storage. Runoff ratios were reduced because of this hydrological disconnection.We highlight the importance of small-scale hydrogeomorphic setting on peat swamp carbon storage as facilitated by the variation of within-site hydrological connectivity and runoff, which also has important implications for downstream water quality. The unconfined site maintained a higher water table position in both years and has much greater peat carbon stocks. We suggest peat swamp channelization either naturally or through drainage decreases carbon stocks.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.2637","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140074934","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}

引用次数: 0

Growth response of dune‐building grasses to precipitation 沙丘草的生长对降水的反应

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-02-27 DOI: 10.1002/eco.2634

Jan‐Markus Homberger, Aaron Lynch, Michel Riksen, Juul Limpens

{"title":"Growth response of dune‐building grasses to precipitation","authors":"Jan‐Markus Homberger, Aaron Lynch, Michel Riksen, Juul Limpens","doi":"10.1002/eco.2634","DOIUrl":"https://doi.org/10.1002/eco.2634","url":null,"abstract":"The formation and development of coastal dunes are influenced by the growth of dune‐building grasses. Concurrently, the development of coastal dunes has been positively related to growing season precipitation, which might be due to precipitation promoting the growth of dune‐building grasses. However, a direct response relationship between precipitation and dune‐building grasses has yet to be identified. We explored the impact of precipitation on dune‐building grass species using a three‐step approach. (1) We assessed how plant‐available soil moisture changed with precipitation along an elevation profile from embryo dune to foredune. (2) We quantified the growth response of European marram grass (Ammophila arenaria [L.] Link) and sand couch (Elytrigia juncea [L.] Nevski) in a controlled pot experiment with water treatments derived from long‐term precipitation records. (3) We explored the impact of different precipitation scenarios on the growth of dune‐building grasses. Our field monitoring results showed that changes in soil moisture of the upper soil profile (0–50 cm) closely followed precipitation dynamics for all topographic positions. In our controlled pot experiment, soil moisture significantly increased plant growth in plant attributes associated with dune‐building, irrespective of species. Our scenario analyses indicated that prolonged periods with deviations from average growing season precipitation significantly affect plant growth, with extremely dry years reducing plant growth up to 23% and extremely wet years increasing plant growth up to 32%. Hence, in precipitation‐dependent coastal dune ecosystems, future extreme climatic events might have considerable consequences for dune development by notably influencing the growth of dune‐building vegetation.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"282 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139987710","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}

引用次数: 0

Analysing the spatiotemporal variation and influencing factors of Lake Chaohu's CDOM over the past 40 years using machine learning 利用机器学习分析过去 40 年巢湖 CDOM 的时空变化及其影响因素

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-02-27 DOI: 10.1002/eco.2639

Zijie Zhang, Han Zhang, Yifan Jin, Hongwei Guo, Shang Tian, Jinhui Jeanne Huang, Xiaotong Zhu

{"title":"Analysing the spatiotemporal variation and influencing factors of Lake Chaohu's CDOM over the past 40 years using machine learning","authors":"Zijie Zhang, Han Zhang, Yifan Jin, Hongwei Guo, Shang Tian, Jinhui Jeanne Huang, Xiaotong Zhu","doi":"10.1002/eco.2639","DOIUrl":"10.1002/eco.2639","url":null,"abstract":"Chromophoric dissolved organic matter (CDOM) in aquatic environments is an important component of the biogeochemical cycle and carbon cycle. The aim of this study is to investigate the long-term changes in CDOM in shallow and eutrophic Chaohu Lake, as well as its relationship with climate, environment and social factors. Using long time series Landsat image data and machine learning technology, the spatiotemporal evolution of Chaohu CDOM since 1987 was reconstructed. A total of 180 samples were collected, which were divided into three parts based on regional and hydrological characteristics. The results show that the water quality in different regions were significantly different, and TN may be the key factor driving the change of CDOM in Chaohu Lake. Machine learning algorithms including random forest (RF), support vector regression (SVR), neural network (NN), multimodal deep learning (MDL) model and Extreme Gradient Boosting (XGBoost) were used, among which XGBoost model performed best (R2 = 0.955, mean absolute error [MAE] = 0.024 mg/L, root mean square error [RMSE] = 0.036 mg/L, bias = 1.005) and was used for CDOM spatiotemporal variation retrieval. The change of CDOM was seasonal, highest in August (0.67 m−1) and lowest in December (0.48 m−1), and the western lake is the main source of CDOM. Annual variability of the CDOM indicates that it began to decline after the completion of water pollution control in 2000. Temperature changes were closely related to CDOM (P < 0.01) and agricultural non-point source pollution plays an important role in Chaohu Lake. This study will provide feasible methods and scientific basis for the long-term remote sensing supervision of CDOM.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140009511","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}

引用次数: 0

Impacts of vegetation dynamics on hydrological simulations under drought conditions in a humid river basin in Southern China 华南湿润流域干旱条件下植被动态对水文模拟的影响

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-02-26 DOI: 10.1002/eco.2630

Cancan Liu, Yongqin David Chen

{"title":"Impacts of vegetation dynamics on hydrological simulations under drought conditions in a humid river basin in Southern China","authors":"Cancan Liu, Yongqin David Chen","doi":"10.1002/eco.2630","DOIUrl":"10.1002/eco.2630","url":null,"abstract":"Vegetation plays an essential role in the atmospheric and hydrological processes, and vegetation responds differently to climate change in various regions, especially in extreme climates. Therefore, the use of static prescribed vegetation information from past years in numerical models can be a source of biases in hydrological simulations. However, previous studies have mainly focused on the effects of vegetation dynamics on hydrological processes in arid and semi-arid regions. It remains unclear how static or dynamic vegetation affects hydrological simulations in humid regions, especially under drought conditions. In this study, the Weather Research and Forecasting (WRF) model coupled with Noah-MP was used to assess the impact of vegetation dynamics on hydrological simulations in the East River basin (ERb) of China, which is a major water source for several major cities in the Pearl River Delta. The model was run with prescribed and dynamic vegetation conditions, respectively. Our model validation based on observed 2-m temperature (T2) and Leaf Area Index (LAI) showed that the model performance was improved when vegetation dynamics were considered. Our simulations with static or dynamic vegetation showed the impacts of vegetation dynamics on hydrological simulations under droughts. The model with vegetation dynamics simulated a wetter condition with higher soil moisture and runoff and lower T2, compared with the simulations of static vegetation. The results suggested that ignoring vegetation dynamics may overestimate the severity of drought in this humid basin, unlike arid and semi-arid regions. Therefore, consideration of vegetation dynamics in this humid basin will deepen our research on different types of zones and serve as a reference for other humid regions.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eco.2630","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139987628","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}

引用次数: 0

Assessing impacts of ecological restoration project on water retention function in the Taihang Mountain area, China 中国太行山区生态修复工程对水源涵养功能的影响评估

IF 2.6 3区环境科学与生态学

Ecohydrology Pub Date : 2024-02-26 DOI: 10.1002/eco.2638

Feng Wang, Jintong Liu, Wei Deng, Tonggang Fu, Hui Gao, Fei Qi

{"title":"Assessing impacts of ecological restoration project on water retention function in the Taihang Mountain area, China","authors":"Feng Wang, Jintong Liu, Wei Deng, Tonggang Fu, Hui Gao, Fei Qi","doi":"10.1002/eco.2638","DOIUrl":"10.1002/eco.2638","url":null,"abstract":"The ecological restoration (ER) project significantly affects the water retention function in the Taihang Mountain area. However, a comprehensive understanding of the water retention effects in different ER project areas still needs to be improved. In this study, we employed the integrated valuation of ecosystem services and trade-offs (InVEST) model to evaluate the differences in water retention among different ER project areas. Additionally, we used the structural equation model to explore the influence of various factors on water retention. The results showed the following: (1) The total amount of water retention in the Taihang Mountain area increased yearly from 2000 to 2020, with an 85.25% increase in 21 years. The water retention function showed a trend of transferring to a higher level. (2) The forest land restoration project showed the highest average water retention capacity, followed by the grassland restoration project, which together provided 61.12% of the water retention capacity in the ER areas. Forest land restoration project was found to have the most potential in improving water retention, while grassland restoration was more efficient. The water retention capacity of a 21-year-old artificial forest could only reach 70.92% of the natural forest. Cropland restoration mode increased the water retention by 22.85% compared with non-ecological engineering areas. (3) The enhancement of water retention function in the study area resulted from multiple factors, among which precipitation and root depth were the most critical variables. (4) According to the structural equation model, the impact of natural factors on water retention accounted for 74.33%, and ecological engineering had a greater impact on water retention in the hilly zone. The ER project significantly increased water retention capacity. The results provide scientific support for improving water retention function and optimizing ER projects in semi-arid areas of China.","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"17 3","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139978000","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}

引用次数: 0