Article
Biodiversity Conservation
Zhang Xingyuan, Li Fawen, Zhao Yong
Summary: This study focuses on the connectivity of river networks in the Haihe River basin in China. By constructing a graphic model, the researchers analyze the changes in river network structure and their impact on connectivity. The results show that the river network evolves into a small-world network, which improves its efficiency and functionality but leads to decreased connectivity. The structural changes also result in spatial and temporal differences in hydrological connectivity, which further limits the function of the river system.
ECOLOGICAL INDICATORS
(2023)
Article
Water Resources
Jonas Souza, Janet Hooke
Summary: This study investigates the impact of dry forest biomass fluctuation on connectivity in tropical dry forests, using vegetation scenarios based on rainfall patterns and NDVI fluctuations. Results show that potential connectivity increases during wet scenarios and decreases during dry scenarios, indicating temporal variability in connectivity in runoff-dominated regions.
HYDROLOGICAL PROCESSES
(2021)
Article
Environmental Sciences
Weilun Gao, Zheng Bing Wang, Maarten G. Kleinhans, Chiyuan Miao, Baoshan Cui, Dongdong Shao
Summary: A river bifurcation plays a critical role in distributing water, sediment, and nutrients to the downstream branches of deltaic river networks. However, the effects of a connecting channel between the downstream branches on water partitioning and hydrological connectivity are still not well understood.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
David Bretreger, In-Young Yeo, Robert Melchers
Summary: The external corrosion of cast iron water supply pipes is related to the availability of free moisture at the pipe wall. Terrain wetness indices can be used to estimate soil surface moisture content. The study demonstrates the potential of terrain indices to indicate relative soil wetness in urban areas, revealing the potential risk of pipe failure.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biodiversity Conservation
Suman Jumani, Matthew J. Deitch, Denis Valle, Siddarth Machado, Vincent Lecours, David Kaplan, Jagdish Krishnaswamy, Jeanette Howard
Summary: The article introduces new metrics, CAFI and CARFI, to quantify river fragmentation at spatiotemporal scales. These metrics use catchment area as a proxy for riverine habitat availability and provide important insights for understanding and informing basin-wide conservation and development planning in data-limited environments.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Ziqi Li, Wenchao Sun, Haiyang Chen, Baolin Xue, Jingshan Yu, Zaifeng Tian
Summary: This study investigates the temporal variations of hydrological connectivity and their driving mechanism in Baiyangdian Lake using a time series of open water surface area data derived from Landsat 8 images. The study reveals that the near-infrared band reflectance is the most accurate index for water classification, and that the relationship between computed hydrological connectivity and observed water level shows high variability between years. Furthermore, the spatial distribution of emergent plants varies year to year due to interannual variations of the climate and hydrological regime.
Article
Biodiversity Conservation
Yinghu Zhang, Jinhong Chen, Jinchi Zhang, Zhenming Zhang, Mingxiang Zhang
Summary: Innovative methods were used to assess the spatial and temporal patterns of hydrological connectivity in the soil profiles of the Yellow River Delta wetland. The results showed significant spatial and temporal changes in hydrological connectivity, with high values concentrated in certain areas. Wetland degradation was found to be correlated with changes in the hydrological connectivity, leading to recommendations for wetland restoration solutions.
ECOLOGICAL INDICATORS
(2021)
Article
Microbiology
Baozhu Pan, Xinyuan Liu, Qiuwen Chen, He Sun, Xiaohui Zhao, Zhenyu Huang
Summary: Floodplains play essential roles in regional ecological functions. This study investigated the spatiotemporal patterns and coalescence processes of bacterial communities in a floodplain ecosystem. The results revealed differences in planktonic and sedimentary bacterial communities and the influence of hydrological connectivity on their coalescence.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Zibo Yu, Laibin Huang, Junhong Bai, Guangliang Zhang, Wei Wang, Dawei Wang, Chen Wang, Yaqi Wang, Guozhu Chen, Zhe Liu
Summary: Hydrological connectivity is an important factor influencing wetland plant traits and spatial patterns. This study investigated the relationships between hydrological connectivity and plant traits in intertidal salt marshes. The results showed that plant traits were enhanced with increasing hydrological connectivity, and the density and complexity of the plant trait network increased. The study also found that different tidal flat areas had different effects on the growth and adaptability of Suaeda salsa. Understanding the relationships between plant trait network and hydrological connectivity can help guide wetland restoration efforts.
Article
Engineering, Civil
Jiefeng Wu, Huaxia Yao
Summary: Understanding and simulating dissolved organic carbon (DOC) concentrations during dryness and wetness events is crucial for water quality projections and carbon balance estimates. This study proposes a framework that combines the standardized streamflow index (SSI) and run theory to describe dryness/wetness characteristics at different timescales. Simulation models were constructed and validated using multi-variable linear regression and cross-validation methods. The optimal model accurately predicts DOC concentrations at monthly, seasonal, and annual scales based on hydrological characteristics. Results show that DOC concentrations are lower during dryness events, and the model exhibits good performance.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Z. Q. Tan, J. Yao, L. Q. Gong, Y. L. Li, Q. Zhang, X. L. Wang, R. R. Wan, B. Li
Summary: This study utilized a new conceptual framework and connectivity assessment tool to assess the impact of the Poyang Lake Hydraulic Project on the lake's internal connectivity. The results showed that the project would enhance the total connectivity and general connectivity involving inundation depth, but weaken the general connectivity involving flow velocity and effective connectivity. It is important to consider various factors when evaluating the impact of hydraulic barriers, and it is not appropriate to categorize their impact as weakening or enhancing.
WATER RESOURCES RESEARCH
(2023)
Article
Plant Sciences
Xavier Serra-Maluquer, Elena Granda, Jesus J. Camarero, Albert Vila-Cabrera, Alistair S. Jump, Raul Sanchez-Salguero, Gabriel Sanguesa-Barreda, Juan B. Imbert, Antonio Gazol
Summary: This study evaluated the short- and long-term effects of repeated droughts and wet years on six dominant Iberian tree species, finding significant short-term growth decreases and enhancements across species, with large intraspecific variations that were not explained by individual trait data. The accumulated impacts of repeated climate extremes were related to long-term growth trends, showing how the recurrence of climate extremes can determine growth trajectories, particularly in conifers species. These results suggest that in the future, more intense and frequent climate extremes will alter growth performance in forests dominated by conifers.
JOURNAL OF ECOLOGY
(2021)
Article
Geosciences, Multidisciplinary
P. Conte, V Ferro
Summary: The study uses Fast Field Cycling Nuclear Magnetic Resonance to analyze hydrological connectivity inside the soil, showing that soil structure and texture influence connectivity, with high structural connectivity corresponding to better functional connectivity.
Article
Green & Sustainable Science & Technology
Wenhui Bao, Xingyu Zeng, Chunyu Luo, Hongqiang Zhang, Yi Qu, Nan Xu
Summary: The internal and external hydrological connectivity of wetland biodiversity hotspots are significantly correlated. The decline in external hydrological connectivity leads to a decline in internal hydrological connectivity, and is also influenced by the proportion of core wetlands, edge wetlands, and branch corridors. Hotspots located at intersections of high-grade rivers are more affected by climate change, while hotspots near low-grade rivers are mainly impacted by human activities.
Article
Geosciences, Multidisciplinary
Jinfeng Wu, Jao Pedro Nunes, Jantiene E. M. Baartman, Dawen Yang
Summary: The study reveals that the implementation of soil and water conservation measures and anthropogenic activities can reduce water and sediment movement in water erosion areas, but the mechanisms of sediment dynamics may change under climate conditions. This knowledge is crucial for developing sustainable conservation plans and improving sedimentological models.
Article
Environmental Sciences
Yu Liu, Ya Li
ENVIRONMENTAL EARTH SCIENCES
(2019)
Article
Biodiversity Conservation
Yu Liu, Liang Zhao, Xiubo Yu
ECOLOGICAL INDICATORS
(2020)
Article
Environmental Sciences
Yu Liu, Liang Zhao
Article
Green & Sustainable Science & Technology
Yu Liu, Xiubo Yu, Liang Zhao, Suxiao Li
Summary: This paper explores the impact of shrub planting on degraded dryland rangeland, focusing on the role of hydrological and sediment connectivity in ecosystem dynamics. Research gaps were identified in connectivity-based evaluation and prediction, with future priorities including developing indicators and models to address nonlinearity and thresholds in ecosystem responses, as well as social ecological frameworks and tools.
CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY
(2021)
Article
Green & Sustainable Science & Technology
Bojie Fu, Mark Stafford-Smith, Yanfen Wang, Binfang Wu, Xiubo Yu, Nan Lv, Dennis S. Ojima, Yihe Lv, Chao Fu, Yu Liu, Shuli Niu, Yangjian Zhang, Hongwei Zeng, Yuexian Liu, Yanxu Liu, Xiaoming Feng, Lu Zhang, Yongping Wei, Zhihong Xu, Fadong Li, Xiaoyong Cui, Salif Diop, Xi Chen
Summary: The article discusses the current research status of drylands globally and identifies four key themes, each with three research priorities, to facilitate actionable interdisciplinary research and achieve Sustainable Development Goals in drylands. It also proposes a new Global Dryland Ecosystem Programme to address the needs of practitioners and policymakers in drylands.
CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY
(2021)
Article
Green & Sustainable Science & Technology
Yuehan Dou, Xiubo Yu, Yu Liu
Summary: Ecosystem services in dryland areas are crucial for the sustainable development of local communities.
CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY
(2021)
Article
Biodiversity Conservation
Chongjun Tang, Yu Liu, Zhongwu Li, Liping Guo, Aizhen Xu, Jiading Zhao
Summary: This study investigates the regulation effect of vegetation cover pattern on runoff and soil erosion in a humid environment, finding that vegetation cover plays a crucial role in response to rainfall, particularly in mitigating soil loss. The relationship between vegetation coverage and runoff volume weakens as rainfall depth increases.
ECOLOGICAL INDICATORS
(2021)
Article
Ecology
Chan Diao, Yu Liu, Liang Zhao, Ga Zhuo, Yongqing Zhang
Summary: The study highlights the sensitivity of vegetation in the Qinghai-Tibet Plateau to warming and wetting climate, with a temporal lag in response to precipitation of 0-1 months. The vegetation also shows distinct reaction patterns to temperature within 1-2 months.
ECOLOGICAL INFORMATICS
(2021)
Article
Environmental Sciences
Suxiao Li, Yu Liu, Hong Yang, Xiubo Yu, Yiqian Zhang, Chunxiao Wang
Summary: The study analyzed the supply of six ecosystem services (ESs) by landscapes in Xinjiang, China, revealing spatial heterogeneity and coverage differences in ES hotspots. Over 50% of ES hotspots were located within Protected Areas (PAs), indicating moderate outcomes in preserving ESs and biodiversity, yet conservation gaps exist. Substantial differences were found in ES supply by different PAs, highlighting the need for a shift towards broader goals encompassing multiple ESs for human well-being.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Jiakun Teng, Xiubo Yu, Shaoxia Xia, Yu Liu
Summary: The relationship between hydrological variation and waterbird habitat use in wetland complexes is an important research field. This study combined synthetic aperture radar (SAR) imagery and GPS tracking data to quantify the impact of flood duration on goose habitats and investigated the spatial distribution pattern of habitats in Poyang Lake, China from 2018 to 2020. The study also considered the role of sub-lakes in habitat protection.
Article
Environmental Sciences
Yu Liu, Yingxi Zeng, Xiubo Yu
Summary: This study quantified the soil erosion control services (SECSs) delivered to local communities using a land-use-specific cascade mechanism and framework. The results showed an increase in the capacity for soil erosion prevention and sediment flow reduction, but a decrease in the actual delivery of SECSs due to land-use change and reduced cropland area.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Engineering, Geological
Yu Xian, Xueli Wei, Haibo Zhou, Ningsheng Chen, Yu Liu, Feng Liu, Hao Sun
Summary: This study investigates the mechanism of snowmelt-driven landslides through the analysis of a high-level loess landslide in the Yili River Valley, Xinjiang, China. The study reveals that the landslide has experienced two large-scale failures and identified inherited slope deformations. Human grazing activities and the strong water sensitivity of loess were found to be the main factors contributing to the formation and development of the landslide. The results provide important information for understanding early warning systems and risk assessment for snowmelt-triggered landslides in cold areas.
Article
Environmental Sciences
Chunxiao Wang, Xiubo Yu, Shaoxia Xia, Yu Liu, Junlong Huang, Wei Zhao
Summary: This study used satellite tracking technology to investigate the potential habitat distribution of swan geese during their migration cycle. The results show that the wintering grounds of swan geese are mainly located in the middle and lower reaches of the Yangtze River, while stopover sites are widely distributed and breeding grounds are mainly in Inner Mongolia and eastern Mongolia.
Article
Environmental Sciences
Jiakun Teng, Shaoxia Xia, Yu Liu, Houlang Duan, Xiubo Yu, Jiang Chen
Summary: Climate anomalies and human activities have increased the frequency of extreme hydrological events in wetlands, posing greater survival pressure on waterbirds. Therefore, accurately predicting the impact of this phenomenon on waterbird habitat suitability is crucial. This study used flood duration index (FD), enhanced vegetation index (EVI), and waterbird GPS tracking data to examine the response of goose distribution probability to hydrological variations in Poyang Lake. By building an overwintering geese habitat suitability index (HSI) and analyzing the effects of drought and flood on goose habitat, the research provides valuable insights for floodplain wetland hydrology management and waterbird conservation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)