Hydrothermal Dynamics and Surface Energy Allocation in Subtropical Grasslands by WANG Heng, ZHANG Qingtao, WANG Zhiqiang, WU Xinyu

“…Soil hydrothermal changes are an important part of the study of eco-hydrological processes,and studies on soil hydrothermal changes in grasslands in subtropical coastal areas are relatively insufficient.This paper studied the soil hydrothermal changes and surface energy balance of grassland in a subtropical campus area by using field observation data.The results showed that:① Grassland soil moisture is affected differently by rainfall in the wet and dry seasons,with rainfall causing greater soil moisture changes in the dry season than in the wet season.On 20 December,the daily rainfall was 15.2 mm,and the soil moisture change was 0.12 m³/m³ during the study period.On 1 May,the daily rainfall was 120.3 mm,and the soil moisture change was only 0.11 m³/m³.② In terms of vertical variation in soil water potential gradient,the zero-pass surface of the soil water potential gradient occurs within 10~30 cm in the wet season and around 50 cm in the dry season.③ According to the response of soil moisture to rainfall,soil moisture transport after rainfall in the dry and wet seasons mainly occurs at a soil depth of 0~40 cm.④ The change in soil temperature is greatly influenced by seasonal temperature,and the surface soil temperature gradient is large.In spring and summer,soil temperature decreases with increasing soil depth;in autumn and winter,soil temperature increases with increasing soil depth.⑤ Within two adjacent months,transpiration from grasses is significantly reduced in the wet season relative to the dry season.In terms of energy allocation,although the wet season sees more rainfall and less energy flux,the proportion of latent heat flux is higher,with the proportion of latent heat flux between 0:00 and 6:00 and between 7:00 and 17:00 increasing by 3% and 7% respectively compared with the dry season.This paper examines rainfall and seasonal differences in the hydrothermal dynamics and surface energy of subtropical grasslands,providing information for the study of ecosystems in subtropical coastal zones.…”
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Spatio-Temporal Simulation of Hydrological Elements and Disaster Causes in Beijiang River Basin by ZHANG Kangtao, LEI Weidong

“…After the flood, as precipitation decreased, both soil moisture and runoff levels dropped. A comparison between the simulated average soil moisture for 2022 and historical landslide locations reveals that areas with high kernel density of historical landslides overlap with regions with high soil moisture in the southeastern part of the basin. …”
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Design and simulation of an intelligent irrigation system using fuzzy logic by Peter Kibazo, Wanzala Jimmy Nabende, Michael Robson Atim

“…The system design integrates light, temperature, and soil moisture sensors to monitor environmental conditions and soil moisture content in real-time. …”
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Water Budget on Various Land Use Areas Using NARR Reanalysis Data in Florida by Chi-Han Cheng, Fidelia Nnadi

“…Higher rainfall led to higher soil moisture anomalies for the agriculture, forest, and wetland from 1992 to May 1998 in both study regions. …”
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Temporal-spatial Evolution of Drought Characteristics at Different Grades in Yulin by KONG Gang, ZHANG Shanliang, WANG Lu, HUANG Shengzhi, BAI Jueying

“…Under the background of climate warming and human activities,Yulin city suffers from frequent drought,which has adverse effect on the agriculture,ecological environment and social economy in this area.Although the adverse effects of drought on the Loess Plateau have attracted the attention of many scholars,there is still a lack of grid and refined spatial and temporal assessment of drought in Yulin City.Therefore,taking Yulin City as the study area,based on the monthly precipitation and soil moisture data with a spatial resolution of 0.25°×0.25°,this paper calculates the standardized precipitation index (SPI) and the standardized soil moisture index (SSMI) on three month scales,identifies the drought characteristic parameters by the run theory,and analyzes the spatial-temporal evolution of drought characteristics at different grades.The results show that:The drought is rigorous in Yulin city.In time,a wet trend appears in spring and winter,while a dry trend in summer.In space,there is a significant dry trend in the southern of Yulin city.There are more than 6 months of long-term precipitation deficit and 12 months of long-term soil moisture deficit in Yulin City,respectively,and the month with consecutive precipitation deficit come earlier than the soil moisture deficit.Areas with high drought frequency are located in the northern,southern and eastern edges of Yulin.The conclusion is of great significance to the drought prevention,social production and ecological environment in Yulin city.…”
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Effects of drought stress and Morchella inoculation on the physicochemical properties, enzymatic activities, and bacterial community of Poa pratensis L. rhizosphere soil by Wei Yin, Le Wang, Qian Han Shang, Yi Xin Li, Wei Sa, Quan Min Dong, Jian Liang

“…Methods High-throughput sequencing was employed to study rhizosphere soil bacterial communities in both Morchella-inoculated and uninoculated Poa pratensis rhizosphere soil subjected to moderate (50% soil moisture) and severe (30% soil moisture) drought stress, as well as under normal water conditions (70% soil moisture). …”
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Effects of No-tillage of Rice on Blue and Green Water at Basin Scale by LUO Kaisheng

“…It is of great significance to study the hydrological effect of no-tillage of rice for the popularization of no-tillage technology and the sustainable development of agriculture.However,previous studies were mainly conducted at station scale,and the effect of no-tillage of rice on blue-green water at basin scale is still unclear.Taking the Xiangjiang River Basin as the test area,based on the land use data,digital elevation data,soil data,agricultural management data in 2000 and meteorological data-driven SWAT model,this paper simulates the effect of no-tillage of rice on blue water (water yield+deep groundwater recharge) and green water (actual evapotranspiration+soil moisture content) in the basin.The results show that:Compared with traditional tillage,no-tillage of rice had a greater influence on recharge of deep groundwater,resulting in a decrease of 5.62%,which was 5.35% higher than that of water yield.However,the change of blue water was mainly attributed to the change of water yield,whose contribution was 72.46%.The green water flow (actual evapotranspiration) decreased by 8.460×10⁷ m³ due to no-tillage of rice,but the increase of green water reservoir (soil moisture content) offset these and eventually resulted in the increase of green water.Therefore,the change of blue-green water distribution under no-tillage of rice was mainly achieved by changing water yield and soil moisture content.The water yield mainly caused the change of blue water,while the soil moisture content mainly resulted in the change of green water.Due to the mutual offset of hydrological factors,there was no significant final effect of no-tillage rice on the blue-green water of the whole basin,but large spatial differences within the basin.No-tillage of rice increased the proportion of green water in the total water resources,and increased the ecological water available in the farmland ecosystem,so it played a positive role.…”
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Stability Evaluation of Volcanic Slope Subjected to Rainfall and Freeze-Thaw Action Based on Field Monitoring by Shima Kawamura, Seiichi Miura

“…This study aims at clarifying the aspects of in-situ volcanic slopes subjected to rainfall and freeze-thaw action. The changes in soil moisture, pore pressure, deformations, and temperatures in the slope were investigated using soil moisture meters, tensiometers, thermocouple sensors, clinometers, settlement gauges, an anemovane, a snow gauge, and a rainfall gauge. …”
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The Effect of Drought on PM Concentrations in the Czech Republic by Adéla Holubová Šmejkalová, Jáchym Brzezina

“…Results of the study show that soil moisture affects the extent of resuspension and soil erosion. …”
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Experimental study on in-situ simulation of rainfall-induced soil erosion in forest lands converted to cash crop areas in Dabie Mountains. by Gao Li, Tao Yang, Rui Chen, Haogang Dong, Feng Wu, Qinghua Zhan, Jinyan Huang, Minxuan Luo, Li Wang

“…The findings underscore that rainfall prompts a swift surge in surface soil moisture, destabilizing the soil surface and culminating in slope erosion; thus, the rate of change in surface soil moisture content emerges as a pivotal indicator for predicting slope soil erosion. …”
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Responses of Loess Ground with Different Slopes and Vegetation Covers to Rainfall Infiltration by ZHANG Lina, LI Ping, HU Xiangyang, ZHONG Jianping, YANG Kai, ZHAO Zhiyan, LI Tonglu

“…[Objective] To investigate the soil moisture response to rainfall in loess ground with different slopes and vegetation types. …”
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The Responses of the Quantitative Characteristics of a Ramet Population of the Ephemeroid Rhizomatous Sedge Carex physodes to the Moisture Content of the Soil in Various Locations... by Buhailiqiemu Abudureheman, Huiliang Liu, Daoyuan Zhang, Kaiyun Guan, Yongkuan Zhang

“…In this study, the soil moisture content was measured, and the quantitative characteristics of this sedge species were compared. …”
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Experimental Study of Site-Specific Soil Water Content and Rainfall Inducing Shallow Landslides: Case of Gakenke District, Rwanda by Martin Kuradusenge, Santhi Kumaran, Marco Zennaro, Albert Niyonzima

“…Various experiments have been conducted for the real-time monitoring of slope failure using the toolset composed of a rain gauge, soil moisture sensors, and a rainfall simulating tool. …”
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Response of high-yielding soybean varieties to water-saturated and drought stress by Purwantoro ., R.D. Purwaningrahayu, H. Kuntyastuti, A. Harsono, N. Nuryati, A. Sulistyo, Z. Yursak, R. Soehendi, Trustinah ., H. Kuswantoro, M.J. Mejaya, D. Harnowo

“…The yields of Dering 2 and Deja 2 varieties at the optimal soil moisture reached 4.53 gram per plant and 6.28 gram per plant, and in soil moisture of 40 percent field capacity were 4.68 gram per plant and 5.69 gram per plant respectively. …”
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Associated Clustering Strategy for Wireless Sensor Network by Yajuan Sun, Huanzhao Wang, Kewang Zhang, Xudong Yang

“…We consider the soil moisture monitoring problem and propose a WSN associated clustering strategy based on spatiotemporal data correlation, which ensures that the nodes within each cluster can share a good data correlation and consequently makes the cluster head do the data fusion more efficiently. …”
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Photosynthetic characteristics of Paris polyphylla var. chinensis in response to different light intensities and soil water contents by Yaling Zhang, Yaling Zhang, Rong Xu, Rong Xu, Rong Xu, Zhaozhao Wang, Juan Zhang, Xinghao Tang, Yu Chen, Xiao-Li Yan, Lu-Ping Qu, Lu-Ping Qu

“…This is associated with a decrease in the light response curve, indicating that low soil moisture inhibits the growth of P. polyphylla and increases the likelihood of irreversible light damage, so the optimum soil moisture content for P. polyphylla should be above 20%.DiscussionConsidering the economic benefits and the growth and health of P. polyphylla in artificial cultivation, it is recommended that shade be controlled at around 50% while maintaining soil moisture between 40% and 60% of water content.…”
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Assessment of ozone impact on forest vegetation using visible foliar injury, AOT40F exposure index and MDA concentration in two meteorologically contrasting years by Radek Novotný, Leona Vlasáková, Vít Šrámek, Václav Buriánek, Nina Benešová

“…The 2021 vegetation season was characterised by lower temperatures and higher relative air humidity and soil moisture in comparison to 2022. Stomatal conductance conditions were similar in both years, except for lower soil moisture in 2022. …”
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Geospatial monitoring and analysis of agricultural drought to identify hotspots and risk assessment for Senegal by Gurjeet Singh, Narendra N. Das, P.V. Vara Prasad

“…This system, with a high-resolution of 0.05°, effectively simulates daily soil moisture and generates the Soil Moisture Deficit Index (SMDI)-based agricultural drought monitoring. …”
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Effect of intercropping Lolium perenne in Ziziphus jujuba orchards on soil quality in the canopy by Yao Ma, Bin Cao, Xiaojia Wang, Weijun Chen

“…This method promotes rapid soil moisture evaporation, exacerbates soil erosion, and deteriorates the soil’s physicochemical properties. …”
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Field Data Report for the First Microwave Water and Energy Balance Experiment (MicroWEX-1), July 17 - December 16, 2003, Citra, Florida by Kai-Jen Calvin Tien, Jasmeet Judge, Larry W. Miller, Orlando L. Lanni

“…It is important to know how microwave brightness signature varies with soil moisture, evapotranspiration (ET), and biomass in a dynamic agricultural canopy with a significant biomass (4-6 kg/m2 ) throughout the growing season. …”
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