Article
Agronomy
Zhenyu Zhang, Yanlian Zhou, Weimin Ju, Jingming Chen, Jingfeng Xiao
Summary: Recent studies have shown that current LUE models generally overestimate GPP during drought years and SM regulates LUE during these years. The effectiveness of concurrent, lagged, and accumulated soil moisture deficit in capturing actual LUE during drought years was compared. Accumulated soil moisture deficit (ASMD) had stronger correlations with LUE and outperformed commonly used water stress scalars.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Engineering, Geological
Wei Hu, Pawel Polaczyk, Hongren Gong, Yuetan Ma, Baoshan Huang
Summary: This study utilized a Marshall impact compactor with an accelerometer to capture the dynamic response of three types of soils during compaction. Results showed that the acceleration curve and compaction progress were linearly related, and filtering structural resonance can help construct the impact compaction curve for quantifying soil compactability.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2022)
Article
Plant Sciences
Patrick Skilleter, David Nelson, Ian C. Dodd
Summary: Soil compaction delays potato shoot emergence and reduces yield. Inca Bella roots are more sensitive to compaction than Maris Piper roots, resulting in a 30% yield reduction for Inca Bella. Maris Piper yield is 60% higher than Inca Bella's.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Fu-Xing Guo, Yan-Ping Wang, Ting-Ting Hou, Lin-Sen Zhang, Yan Mu, Fu-yong Wu
Summary: Improving the utilization efficiency of rainwater resources is crucial for apple orchards in semi-arid areas. The RCIP-SA system effectively increased soil moisture and expanded the dense distribution zone of apple tree roots. Economic benefits were also higher when using the RCIP-SA system in hilly apple orchards on the Loess Plateau of China.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Soil Science
Fabricio da Silva Barboza, Lizete Stumpf, Eloy Antonio Pauletto, Claudia Liane Rodrigues de Lima, Luiz Fernando Spinelli Pinto, Thais Murias Jardim, Jefferson Prass Pimentel, Renata Pinto Albert, Gisele Aparecida Vivan
Summary: The study found that mine soil is highly susceptible to compaction from machine traffic events after topographic reconstruction, especially during the first pass. Before reconstruction, Proctor testing of the topsoil is necessary to establish soil moisture levels and minimize the negative impacts of machine traffic.
SOIL & TILLAGE RESEARCH
(2021)
Article
Agronomy
Fekremariam Asargew Mihretie, Atsushi Tsunekawa, Nigussie Haregeweyn, Enyew Adgo, Mitsuru Tsubo, Tsugiyuki Masunaga, Derege Tsegaye Meshesha, Kindiye Ebabu, Muluken Bayable
Summary: Teff is an important crop for smallholder farmers in Ethiopia, and improved crop management practices are needed to increase productivity and decrease costs. Reduced tillage can improve soil moisture and reduce costs, while row planting can decrease seed costs and lodging. Different tillage and planting practices can influence plant population and leaf area index, while soil compaction has a significant impact on labor costs.
Article
Agronomy
Michail L. Giannitsopoulos, Paul J. Burgess, Goetz M. Richter, Matt J. Bell, Cairistiona F. E. Topp, Julie Ingram, Taro Takahashi
Summary: This study investigates the effectiveness of the LINGRA-N-Plus model in simulating the interaction of climate, soil, and management on ryegrass yields in England and Wales. The model showed improved efficiency in predicting grass yields compared to the original model, especially in scenarios involving nitrogen application and harvest intervals. The results emphasize the usefulness of grass models like LINGRA-N-Plus in exploring the combined effects of various factors on grass productivity.
Article
Green & Sustainable Science & Technology
Xiaoping Ji, Honglei Lu, Cong Dai, Yonggen Ye, Zhifei Cui, Yue Xiong
Summary: This study investigates the properties of soil-rock mixtures prepared by the vibration compaction method, determining reasonable parameters and showing superior performance in density, CBR, and resilient modulus compared to the static pressure compaction method. The ratio of soil to rock and the maximum particle size have significant influences on the properties of soil-rock mixtures. Moreover, there is a strong correlation between the CBR and resilient modulus of soil-rock mixtures prepared by vibration compaction method with field tests.
Article
Agriculture, Multidisciplinary
Chenchen Kang, Geraldine Diverres, Manoj Karkee, Qin Zhang, Markus Keller
Summary: This study developed a decision-support system for managing precision regulated deficit irrigation in vineyards, which included a soil moisture prediction model and an irrigation scheduling model based on artificial neural networks. Validation test results showed that the system was capable of accurately predicting soil moisture changes and creating an adequate irrigation plan to control soil moisture at desired levels.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2023)
Article
Construction & Building Technology
Prinya Chindaprasirt, Arkhom Sriyoratch, Anukun Arngbunta, Panatchai Chetchotisak, Peerapong Jitsangiam, Apichit Kampala
Summary: In this paper, the elastic moduli of compacted loess and lateritic-loess soils on-site were estimated from laboratory tests. The point load test provided a slightly better estimation of elastic modulus compared to the uniform load test.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Engineering, Civil
Nicolas Poncelet, Bertrand Francois
Summary: This study systematically investigates the effects of compaction mode, dry density, and suction on the tensile strength of natural and lime-treated soils. The results show that in-mold compaction provides the best repeatability of tensile strength but is not representative of real compaction conditions. Untreated soils are strongly influenced by suction level and slightly by dry density, while lime-treated soils are more affected by variations in dry density. This study highlights the importance of proper compaction process for lime-treated soils used as bearing elements.
TRANSPORTATION GEOTECHNICS
(2022)
Article
Agronomy
Jianlei Zhao, Jun Zhou, Chenyang Sun, Xu Wang, Zian Liang, Zezhong Qi
Summary: This study determined the working parameters and soil physical parameters of plowing using a designed electric suspension platform and soil instrument. By classifying the soil conditions into three physical states and constructing a T-S fuzzy neural network classifier, the model achieved real-time and accurate identification of the soil's physical state.
Article
Agronomy
Ruqing Zhang, Lu Li, Ye Zhang, Feini Huang, Jianduo Li, Wei Liu, Taoning Mao, Zili Xiong, Wei Shangguan
Summary: Accurately assessing agricultural drought is crucial for its impacts on ecosystem and economy. This study utilized ERA5-Land dataset to estimate SWDI in four southern provinces of China, showing that subsurface layer performs better in drought monitoring. Different climate zones exhibit varying drought periods and severity, with the most severe droughts occurring in early winter, especially in 2019. Results provide valuable reference for drought risk management.
Article
Agronomy
Keke Zhou, Jianzhu Li, Ting Zhang, Aiqing Kang
Summary: Monitoring and assessing drought is crucial due to the costly damage it causes. This study evaluated the utility of combined satellite retrieved soil moisture products and the monthly scaled soil water deficit index in characterizing agricultural drought and investigating relationships among different types of drought. The results showed good performance of the drought index in detecting drought events and revealed the propagation time between meteorological, agricultural, and vegetation drought.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Environmental Sciences
Xiazhen Xi, Xing Yuan
Summary: This study used MODIS data to investigate the impact of soil and atmospheric moisture deficits on carbon and water use in the ecosystem during flash droughts and high temperature conditions in eastern China. The results showed that soil moisture stress had a greater influence on vegetation productivity in humid regions. However, high vapor pressure deficit significantly affected the light use efficiency of vegetation in 55% of the regions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)