Results 41 to 50 of about 1,631,965 (189)

Effect of gypsum and polyacrylamides on water turbidity and infiltration in a sodic soil [PDF]

, 2005
Water ponded on sodic soils can develop turbidity problems which seriously affect rice crop establishment. A total of 19 polyacrylamide products were tested to assess their effectiveness to control water turbidity in a sodic soil under laboratory ...
Sivapalan, Siva
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

Deep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou, Xueqiu He, Zhenlei Li, Ping Wang, Dazhao Song, Fuxing Jiang, Shan Yin, Anliang Lü, Menghan Wei, Taoping Zhong   +9 more
wiley   +1 more source

The Effects of Some Peripheral Conditions on the Solubility of Gypiferous Soils

علوم آب و خاک, 2018
Gypsiferous soils are one of the problematic soils which, due to solubility and contact with water, are a threat to various civil structures, especially water structures. Various factors affect the rate and amount of gypsum particles solubility.
N. Abbasi, A. A. Afsharian
doaj  

Promotion of sunflower growth and water productivity using soil amendments under saline conditions

Water Science
An experimental field trial was conducted to evaluate the effects of adding gypsum, compost, and their combination on the characteristics of a salt-affected loamy sand soil and on sunflower growth and productivity thereon.
Karam Farrag, Sara G. Abdel-Hakim, Marwa E. El-Sesy, El-Sayed el-Bastamy El-Sayed, Mohamed A. Abdrabbo   +4 more
doaj   +1 more source

Adding Straw and Gypsum to Improve Efficiency of Remediating Coastal Saline Soils

Guan'gai paishui xuebao, 2022
【Objective】 Enhancing salt leaching is critical to improving the efficiency of desalinating salt-affected soils. In this paper, we investigated the efficacy of adding straw and gypsum to improve efficiency of remediation of coastal saline soil.
HE Yuanchun, LUO Wan, JIA Zhonghua, ZHANG Yu, ZHANG Dawei, EBRAHIM Y K, LU Peirong, XU Qing   +7 more
doaj   +1 more source

Fracture Development Mechanism of Water‐Isolating Soil Layers During Downward Mining of Shallow‐Buried Coal Seam Groups

Energy Science &Engineering, EarlyView.
This study systematically investigates the fracture development mechanisms of water‐isolating soil layers under the coupled effects of repeated mining and groundwater seepage during the downward mining of shallow‐buried coal seams. The findings provide a theoretical basis for evaluating stratum stability and preventing roof water inrush.
Tao Yang, Shuqi Zhang, Jie Zhang, Haifei Lin, Dong Liu, Hui Liu, Yiming Zhang, Jianping Sun   +7 more
wiley   +1 more source

Short- and Long-Term Effects of Lime and Gypsum Applications on Acid Soils in a Water-Limited Environment: 3. Soil Solution Chemistry

Agronomy, 2021
Aluminum (Al) toxicity imposes a significant limitation to crop production in South Western Australia. This paper examines the impact of surface-applied lime and gypsum on soil solution chemistry in the short term (1 year) and the long-term (10 years) in
Geoffrey C. Anderson, Shahab Pathan, David J. M. Hall, Rajesh Sharma, James Easton   +4 more
doaj   +1 more source

Farmers' Soil–Water Management Practices and Perspectives on Soil Salinization in Mirab Abaya District, Gamo Zone, Southern Ethiopia

Irrigation and Drainage, EarlyView.
ABSTRACT Soil salinization is a critical threat, impacting 20% of the world's irrigated lands and jeopardizing food security. In Ethiopia's Mirab Abaya district of the Gamo Zone, unsustainable irrigation methods exacerbate this issue. This paper examines local farmers' soil–water management systems and their awareness of salinization, aiming to educate
Oloba Jobe, Fanuel Laekemariam, Dereje Tsegaye, Demelash Wendemeneh   +3 more
wiley   +1 more source

Short- and Long-Term Effects of Lime and Gypsum Applications on Acid Soils in a Water-Limited Environment: 2. Soil Chemical Properties

Agronomy, 2020
Soil acidity or aluminum (Al) toxicity is a major limitation to crop production. In this paper, we examine the effects of surface-applied lime and gypsum on soil profile chemical properties that affect Al toxicity in short-term (1 year), medium-term (2 ...
Geoffrey C. Anderson, Shahab Pathan, James Easton, David J. M. Hall, Rajesh Sharma   +4 more
doaj   +1 more source