Article
Geosciences, Multidisciplinary
Bing Guo, Miao Lu, Yewen Fan, Hongwei Wu, Ying Yang, Chenglong Wang
Summary: This study analyzed the evolution of soil salinization in the Yellow River Delta from 1984 to 2022 using a three-dimensional feature space method. The results showed that the salinization intensity in the delta increased from the inland southwest to the coastal northeast. The implementation of salinization control measures has exacerbated salinization, particularly in the northeast. However, some cultivated land in the southwest has shown improvement in salinization.
GEOMATICS NATURAL HAZARDS & RISK
(2023)
Article
Green & Sustainable Science & Technology
Lingling Bian, Juanle Wang, Jing Liu, Baomin Han
Summary: This study used the feature space method to construct multiple feature spaces and develop an optimal inversion model for soil salinity in the Yellow River Delta. The results indicated a decrease in soil salinization from 2015 to 2019, with corresponding sustainable development countermeasures proposed for different salinity levels.
Article
Environmental Sciences
Qingli Cheng, Huiping Chang, Xue Yang, Ding Wang, Wenlin Wang
Summary: The Yellow River Delta is the largest and youngest estuarine and coastal wetland in China and bacterial communities in the soil are significantly influenced by factors related to seawater erosion, nutrient levels, and human disturbance. Seawater erosion drives the variations of marine oligotrophic bacterial communities in early succession stages, while nutrient availability enhances riverine copiotrophs in the late stages.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Yingxuan Ma, Nigara Tashpolat
Summary: Soil salinization is a serious global problem. The Weigan River-Kuqa River Delta Oasis in China is highly affected by soil salinization, causing harm to agriculture and the environment. Remote sensing monitoring can provide a method to manage regional salinization.
Article
Biodiversity Conservation
Yinshuai Li, Chunyan Chang, Zhuoran Wang, Gengxing Zhao
Summary: This study used remote sensing technology and random forest algorithm to construct a soil salinization model and realized the upscaling inversion and dynamic monitoring of soil salinization through land use regionalization. The results showed that soil salinization in the Yellow River Delta gradually decreases from coastal to inland. From 2000 to 2020, soil salinization increased first and then decreased, with salinized soil accounting for 20.35% to 35.10%.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Tiantian Cheng, Jiahua Zhang, Sha Zhang, Yun Bai, Jingwen Wang, Shuaishuai Li, Tehseen Javid, Xianglei Meng, Til Prasad Pangali Sharma
Summary: This study proposed an optimized remote sensing model for detecting soil salinity at different depths in the Yellow River Delta, China. By comparing multiple linear regression and partial least squares regression models, an integrated multi-parameter optimized prediction model was established. The results showed distinct spatiotemporal variations in soil salinity, with higher levels along the coastal shoreline and lower levels in the central area.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agronomy
Xiquan Wang, Hongyuan Zhang, Zhizhong Zhang, Chenping Zhang, Kai Zhang, Huancheng Pang, Stephen M. Bell, Yuyi Li, Ji Chen
Summary: The relationship between salt-affected soils and their adjacent river systems is important for addressing the challenges of soil salinization in agriculture. A study found that the distance along the river is closely related to the level of soil salinization, with soil salinity increasing as the distance along the river increases. This is likely due to the leaching of ions from upstream soils and their accumulation in downstream soils.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Geography, Physical
Mengmeng Hong, Juanle Wang, Baomin Han
Summary: Under the pressure of SDG15.3.1 compliance, addressing land salinization degradation in the Yellow River Basin is crucial due to its role as China's granary. A salinization inversion model was constructed for each zoning unit in the basin based on geographical factors, and a feature space inversion process was utilized for automatic salinization inversion using the Google Earth Engine platform. The resulting salinization distribution maps of the basin in 2015 and 2020 were analyzed, along with the causes and spatiotemporal variations of salinization, leading to proposed prevention and control suggestions. This study can be expanded to larger and more complex geographical regions.
INTERNATIONAL JOURNAL OF DIGITAL EARTH
(2023)
Article
Environmental Sciences
Bing Guo, Fei Yang
Summary: Previous studies have used satellite image parameters to construct monitoring models for salinisation, with a limited number combining these models with SENTINEL-2B MSI images. The red edge index from SENTINEL-2B MSI images provides detailed vegetation information for monitoring salinised land ecosystems. By introducing seven parameters and constructing two feature space models based on the SENTINEL-2B MSI images, a novel salinisation monitoring index for the Yellow River Delta was developed. The results showed high applicability of the monitoring model, with the red edge index playing a crucial role in indicating soil salinisation and highlighting the severity of salinisation in the eastern and northeastern regions, providing a new technical approach for regional salinisation prevention and treatment.
LAND DEGRADATION & DEVELOPMENT
(2022)
Article
Geochemistry & Geophysics
Chuanshun Zhi, Wengeng Cao, Zhen Wang, Zeyan Li, Yu Ren
Summary: This study explored the hydrogeochemical processes of high arsenic groundwater in the Yellow River Delta using the alternative method of ionic ratios. The results indicated that high salinity plays a significant role in the mobilization of arsenic, with reductive dissolution being the principal driving force for arsenic release in coastal groundwater systems.
APPLIED GEOCHEMISTRY
(2022)
Article
Environmental Sciences
Yiming Wu, Lele Liu, Meiqi Yin, Weihua Guo
Summary: The study revealed significant effects of soil salinization on the growth characteristics of Phragmites, with no significant relationships observed for seed number per panicle or reproductive ratio. High genetic diversity within populations and weak genetic differentiation between populations indicated strong genetic flow. Genetic structure analysis identified two phylogenetic groups of Phragmites in the Yellow River Delta.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Chemistry, Analytical
Mingyue Sun, Qian Li, Xuzi Jiang, Tiantian Ye, Xinju Li, Beibei Niu
Summary: In this study, rapid and large-scale estimation of soil salt content (SSC) and organic matter (SOM) was conducted on arable land in the Yellow River Delta (YRD) using multi-source remote sensing. The integration of UAV hyperspectral and satellite multispectral data enabled the accurate estimation of SSC and SOM for a large-scale area. The results revealed significant correlations and distributions of SSC and SOM in the YRD region.
Article
Soil Science
Yang Guo, Xiujun Wang, Xianglan Li, Minggang Xu, Yuan Li, Haonan Zheng, Yongming Luo, Pete Smith
Summary: The study found significant differences in SOC and SIC content among different land use types in the semi-humid region. Dry croplands had higher SOC and SIC content compared to paddy fields, while reed fields had higher SOC content than paddy fields. Salinization was found to have adverse effects on soil C storage in the Yellow River Delta.
Article
Geosciences, Multidisciplinary
Bing Guo, Yifeng Liu, Junfu Fan, Miao Lu, Wenqian Zang, Chuan Liu, Baoyu Wang, Xiangzhi Huang, Jibao Lai, Hongwei Wu
Summary: Within the context of global change, the evolution of salinization in the Yellow River Delta has undergone significant changes in response to climate change and human activities. This study analyzed the spatial and temporal patterns of salinization in the region using a soil salinization monitoring index model and investigated the mechanisms behind its response to climate change and human activities. The findings revealed increasing salinization intensity in the northeastern coastal zone and improving trends in the southwestern inland area. Dominant factors influencing salinization varied in different historical periods, with vegetation coverage and land-use types playing a crucial role in 2022. The study also highlighted the reinforcing interplay between natural and human activity factors in the salinization process.
Article
Agronomy
Yuyang Shan, Ge Li, Yungang Bai, Qiuping Fu, Yan Sun, Lijun Su, Weiyi Mu, Hongbo Liu
Summary: Optimal winter irrigation can be an effective method to control soil salinization in the Yellow River Delta under freezing-thawing conditions. However, there is limited research on optimal winter irrigation based on soil water, heat, and salt dynamics in this region. This study used the Simultaneous Heat and Water Model (SHAW) to simulate the hydrothermal coupling process in freeze-thaw soil during the seedling stage of winter wheat. The model successfully simulated soil moisture, temperature, and salinity, providing recommended winter irrigation amounts for wet, normal, and dry years. These findings have important implications for irrigation optimization in the Yellow River Delta and similar areas.
