Results 61 to 70 of about 22,456 (255)

Mapping Soil Salinity Prediction Enhanced by Time‐Series Remote Sensing Features

Land Degradation &Development, EarlyView.
ABSTRACT Gaining timely knowledge of soil salinity's spatiotemporal dynamics is crucial for accurate mapping. Through temporal span comparisons, this study systematically extracts and utilizes time‐series features (TSFs) derived from Sentinel‐2 and Landsat 8 NDVI and SAVI data (2019–2023) to enhance prediction accuracy. Three datasets were constructed:
Wenji Zhu, Binglong Gao, Yongqi Chen, Chao Dong   +3 more
wiley   +1 more source

Saltmarsh reclamation enhances plant species richness and reduces soil macrofaunal biomass by regulating soil properties through elevation

Frontiers in Ecology and Evolution
Globally, saltmarsh reclamation results in significant losses of coastal wetlands. However, the impacts on above- and below-ground biodiversity and the underlying mechanisms remain poorly understood. We hypothesized that saltmarsh reclamation differently
Guangzhi Zhang, Guangzhi Zhang, Shanshan Wang, Shanshan Wang, Mingshan Xu, Mingshan Xu, Mingshan Xu, Mingshan Xu, Hao Hu, Junbao Huang, Junbao Huang, Jianjun Gan, Jianjun Gan, Zhentao Chen, Zhentao Chen, Jian Zeng, Jian Zeng   +16 more
doaj   +1 more source

The Unfolding Desert: Observed Structural Drying and Projected Aridity Risks in a Brazilian Family Farming Citizenship Territory

Land Degradation &Development, EarlyView.
ABSTRACT Aridification in Semiarid regions is a recurring theme in Intergovernmental Panel on Climate Change (IPCC) reports and has been documented in Northeastern Brazil. This study analyzes the spatiotemporal dynamics of aridification in the Lower São Francisco River “Citizenship Territory” (Sergipe and Alagoas) at a fine spatial resolution (~1 km ...
Carlos Eduardo Pacheco Lima, Júlio Roberto Araújo de Amorim, Marcus Aurélio Soares Cruz, Mariana Rodrigues Fontenelle   +3 more
wiley   +1 more source

Divergent Blue Carbon Trajectories in the Yellow River Delta Post‐1976 Diversion: Hydrological Stability and Human Disturbance Contrasts Revealed by Multi‐Source Remote Sensing (1984–2023)

Land Degradation &Development, EarlyView.
ABSTRACT Coastal wetlands are critical blue carbon sinks, yet their spatiotemporal dynamics under environmental change remain insufficiently quantified. Taking the Yellow River Delta (YRD) as a natural laboratory, this study synthesizes multi‐source remote sensing data, including optical and radar imagery spanning from 1984 to 2023, to explore the ...
Mengqian Jiang, Haotian Liu, Zhenfang He, Zhaosheng Wang, Xuanjie Gai, Qingchun Guo, Shaowei Su   +6 more
wiley   +1 more source

Study on Water-saving Potential and Incentive Systems in Southern Water-lifting Irrigation Districts [PDF]

E3S Web of Conferences
It is of immense significance for agricultural water-saving work to stimulate the initiative of water users and enhance their water-saving awareness. Focusing on the southern water-lifting irrigation districts, this paper employs various water-saving ...
Hu Rongxiang, Wang Yu, Xiao Wanchuan, Wang Yujie, Qiu Xinkai   +4 more
doaj   +1 more source

Refining techniques for high‐frequency monitoring of chlorophyll a fluorescence in estuarine systems

Limnology and Oceanography: Methods, EarlyView.
Abstract Concentrations of the photosynthetic pigment chlorophyll a are commonly used as a proxy for phytoplankton biomass in aquatic systems. Traditional methods for extracting chlorophyll a in discrete samples limit measurement frequency, while in situ sensor technology provides high frequency chlorophyll a fluorescence measurements at a more ...
Nicole Dix, Hannah Nicklay, Jacob Cianci‐Gaskill, Shannon Dunnigan Kimmel, J. Silas Tanner, Kim Cressman, Steven E. McMurray, Yoshimi M. Rii, Rikke Jeppesen, Rachel Guy, Erik Smith   +10 more
wiley   +1 more source

Implementing a Voluntary, Nonregulatory Approach to Nitrogen Management in Tampa Bay, FL: A Public/Private Partnership

The Scientific World Journal, 2001
Participants in the Tampa Bay Estuary Program have agreed to adopt nitrogen-loading targets for Tampa Bay based on the water-quality and related light requirements of underwater seagrasses.
Holly Greening, Bruce D. DeGrove
doaj   +1 more source

Bed‐level tools for monitoring erosion and accretion patterns: Flume validation and field testing

Limnology and Oceanography: Methods, EarlyView.
Abstract Monitoring short‐term changes in surface sediment elevation is fundamental to understanding erosion, transport, and deposition dynamics in shallow coastal environments. However, commonly used field approaches, such as horizontal markers, sediment erosion tables, subsurface sediment plates, or erosion pins, are not always cross‐validated under ...
Lucía Rodríguez‐Arias, Inés Mazarrasa, Beatriz Marin‐Diaz, Teresa Alcoverro, Barbara Ondiviela, Jordi F. Pagès, Eduardo Infantes   +6 more
wiley   +1 more source

Response of suspended sediment dynamics to human activities in the transitional zone between Changjiang Estuary and Hangzhou Bay

Frontiers in Marine Science
The Changjiang Estuary and Hangzhou Bay system has experienced river damming and estuarine engineering in the last decades. However, few studies focused on the shifts in its sediment dynamics due to such human activities.
Dongfeng Xie, Yuwen Chen, Cunhong Pan, Shenyang Zhang, Wen Wei, Zheng Bing Wang, Zheng Bing Wang, Jiali Gu, Wenyi Duan   +8 more
doaj   +1 more source

Exploratory research on rebuilding tidal bore in the Jiuxi reach of the Qiantang River in the project practice

Shuili Shuiyun Gongcheng Xuebao, 2019
Taking the protection of the tidal bore landscape and the reduction of its flood hazards into consideration, it is proposed to rebuild the tidal bore in the Jiuxi reach of the Qiantang River so as to improve the landscape.
JIN Jianfeng, ZHANG Yulun, LI Zhiyong, QIAN Xuecheng, HUANG Zihan   +4 more
doaj   +1 more source