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Quantitative analysis of yield and soil water balance for summer maize on the piedmont of the North China

Jingjing WANG,Feng HUANG,Baoguo LI

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 295-310 doi: 10.15302/J-FASE-2015074

Abstract: production area in China, but the current winter wheat-summer maize system has resulted in a large waterThis water-shortage necessitates the improvement of crop water productivity in the NCP.A crop water model, AquaCrop, was adopted to investigate yield and water productivity (WP) for rain-fedThe RMSE between the simulated and measured soil water storage at depth of 0–100 cm ranged from 4.09capillary groundwater would not result in groundwater over-tapping since the precipitation can meet the water

Keywords： AquaCrop     summer maize     soil water balance     water productivity    

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Assessment of future climate change impacts on water-heat-salt migration in unsaturated frozen soil using

Hanli Wan, Jianmin Bian, Han Zhang, Yihan Li

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1302-5

Abstract: Abstract • A model coupling water-heat-salt of unsaturated frozen soil was established. • Future temperature, precipitation, and evaporation increase in freeze–thaw period. • Soil water, heat, and salt transportThe transport mechanisms of water, heat, and salt in unsaturated frozen soil, as well as its responseThe water, heat, and salt dynamics of unsaturated frozen soil under three representative concentrationThe results show that water, heat, and salt migration are tightly coupled, and the soil salt concentration

Keywords： Soil salinization     Climate change     Unsaturated frozen soil     Water-heat-salt balance     Soil environment change    

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Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0676-4

Abstract: approach for the deviation correction trajectory and posture rectification load for an earth pressure balanceThe required results can be obtained regardless of the soil–rock compound stratum distribution.The maximum rectification moment in the rock layer is almost 12.6 times that in the soil layer.

Keywords： additional position change     deviation correction trajectory     earth pressure balance shield     mechanical    

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Experimental study on the stratum applicability and mechanisms of bubble–slurry for earth pressure balance

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 9,   Pages 1387-1399 doi: 10.1007/s11709-023-0005-y

Abstract: Soil conditioning is essential for addressing the stratum applicability problem of earth pressure balanceUnder high water pressures, EPB shields spew water and soil when excavating coarse-grained strata.However, in current techniques, slurry, foam, and the other agents are mixed with soil separately, theirIt was found that the conditioning effect of bubble–slurry in coarse gravel soil was excellent and could

Keywords： EPB shield     bubble–slurry     soil conditioning     stability     permeability    

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LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 545-558 doi: 10.15302/J-FASE -2020349

Abstract:

Agriculture uses a large proportion of global and regional water resources.Due to the rapid increase of population in the world, the increasing competition for water resourceshas led to an urgent need in increasing crop water productivity for agricultural sustainability.This review examines the effects of soil physical, chemical, and microbial properties on crop water productivityA comprehensive view of these relationships may provide important insights for soil and water management

Keywords： crop water productivity     crop yield     soil chemical properties     soil microbial properties     soil physicalproperties     water consumption    

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Soil-water interaction in unsaturated expansive soil slopes

ZHAN Liangtong

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 198-204 doi: 10.1007/s11709-007-0023-1

Abstract: The intensive soil-water interaction in unsaturated expansive soil is one of the major reasons for slopeIn this paper, the soil-water interaction is investigated with the full-scale field inspection of rainwaterIt is demonstrated that the soil-water interaction induced by seasonal wetting-drying cycles is verycomplex, and it involves coupled effects among the changes in water content, suction, stress, deformationIn addition, the abundant cracks in the expansive soil play an important role in the soil-water interaction

Keywords： strength     intensive soil-water     comprehensive     Infiltration     wetting-induced softening    

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ORGANIC CARBON STOCKS IN A SILTY TEXTURED SOIL FOLLOWING REINTEGRATION OF A 20 YEARS OLD × SITE INTO

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 2,   Pages 183-197 doi: 10.15302/J-FASE-2023485

Abstract:

● 0.98 Mg·ha−1·yr−1 Corg accumulation under miscanthus over 26 years.

Keywords： biobased energy crops     C balance     humus accumulation    

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HIGH QUALITY DEVELOPMENTAL APPROACH FOR SOIL AND WATER CONSERVATION AND ECOLOGICAL PROTECTION ON THE

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 501-511 doi: 10.15302/J-FASE-2021425

Abstract: A series of ecological projects has implemented aimed at soil and water conservation and ecological managementthe ecological projects are apparent mainly through a marked increase in vegetation cover, controlled soilthe coordinated development of the region through research and demonstration, striking the optimum balance

Keywords： ecological management     high quality development     industrial structure     soil erosion     soil and water    

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LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Di WU, Allan A. ANDALES, Hui YANG, Qing SUN, Shichao CHEN, Xiuwei GUO, Donghao LI, Taisheng DU

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 545-558 doi: 10.15302/J-FASE-2020349

Abstract: Agriculture uses a large proportion of global and regional water resources.Due to the rapid increase of population in the world, the increasing competition for water resourceshas led to an urgent need in increasing crop water productivity for agricultural sustainability.This review examines the effects of soil physical, chemical, and microbial properties on crop water productivityA comprehensive view of these relationships may provide important insights for soil and water management

Keywords： crop water productivity     crop yield     soil chemical properties     soil microbial properties     soil physical properties     water consumption    

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Effect of mulching with maize straw on water infiltration and soil loss at different initial soil moistures

Yifu ZHANG,Hongwen LI,Jin HE,Qingjie WANG,Ying CHEN,Wanzhi CHEN,Shaochun MA

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 2,   Pages 161-170 doi: 10.15302/J-FASE-2016104

Abstract: Mulching and soil water content (SWC) have a significant impact on soil erosion, and this study investigatedthe effect of straw mulching on water infiltration and soil loss under different initial SWC treatmentsIncreasing initial SWC can decrease soil infiltration and increase soil loss.For all initial SWC treatments, straw mulching of 30% or more significantly enhanced water infiltrationand soil in northern China.

Keywords： infiltration     initial soil water content     rainfall simulation     soil loss     straw mulching    

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Strategies and Advices for Harmony Evolution Between Water Balance and Territorial Space

Hu Qingfang , Chen Xiumin , Gao Juan , Jin Junliang , Wang Yintang , Zhang Jianyun

Strategic Study of CAE 2022, Volume 24, Issue 5,   Pages 63-74 doi: 10.15302/J-SSCAE-2022.05.009

Abstract:

Healthy water balance is the foundation of promoting the coordinationbalance and ensure national water security.Then, the overall strategy for coordinated development of water balance and territorial space is constructedFirstly, thresholds of healthy water balance should be clarified to optimize the objectives of territory, land and so on.Furthermore, proposals on harmony evolution between water balance and territorial space

Keywords： healthy water balance     territory space     coordinated development     overall strategies     ecological protection    

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How did Archimedes discover the law of buoyancy by experiment?

Hidetaka KUROKI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 26-32 doi: 10.1007/s11465-016-0368-z

Abstract: After Archimedes and Vitruvius era, for more than 2000 years, it has been believed that the displaced waterProposition 7 of his principles) and proved the theft of a goldsmith by weighing the golden crown in water

A previous study showed that a small amount of displaced water was able to be measured withArchimedes measured the weight of displaced water.

Keywords： Archimedes’ principle     buoyancy     specific gravity     Eureka     Vitruvius     displaced water     balance     floating body    

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Identification of abnormal operating conditions and intelligent decision system

Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 456-462 doi: 10.1007/s11465-011-0224-0

Abstract:

In earth pressure balance (EPB) shield construction, the “plastic flow state” is difficultto form using the soil dug in the capsule because it can cause three abnormal operating conditions,present paper effectively integrates the mechanism of abnormal operating conditions and knowledge of soilThe model maximizes knowledge in improving the soil, construction experience, and data to optimize the

Keywords： earth pressure balance (EPB) shield machine     soil pressure cabin     abnormal operating condition     belief rule-base    

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Application of fractal theory to unsaturated soil mechanics

XU Yongfu, TONG Lixin

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 411-421 doi: 10.1007/s11709-007-0056-5

Abstract: In this paper, the soil-water characteristics, unsaturated hydraulic conductivity function, unsaturatedThe predictions of the proposed soil-water characteristics, unsaturated hydraulic conductivity, unsaturated

Keywords： selection     soil-water     independent physical     unsaturated     strength    

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Agricultural Resource Balance and International Import Potential of China by 2050

Zheng Haixia, You Fei, Luo Qiyou, Tang Huajun

Strategic Study of CAE 2022, Volume 24, Issue 1,   Pages 20-28 doi: 10.15302/J-SSCAE-2022.01.003

Abstract:

The balance of supply and demand for agricultural resources in Chinaof the agricultural resource supply-demand gap as well as import potentials and sources of virtual waterVirtual water imports will reach a peak around 2045.If estimated by blue water, virtual water imports will be 1.136×108 m3, accountingfor 30% of the total agricultural water consumption in 2017.

Keywords： agricultural resource balance     food consumption structure     virtual water     virtual arable land     import    

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Title Author Date Type Operation

Quantitative analysis of yield and soil water balance for summer maize on the piedmont of the North China

Jingjing WANG,Feng HUANG,Baoguo LI

Journal Article

Assessment of future climate change impacts on water-heat-salt migration in unsaturated frozen soil using

Hanli Wan, Jianmin Bian, Han Zhang, Yihan Li

Journal Article

Deviation correction strategy for the earth pressure balance shield based on shield–soil interactions

Journal Article

Experimental study on the stratum applicability and mechanisms of bubble–slurry for earth pressure balance

Journal Article

LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Journal Article

Soil-water interaction in unsaturated expansive soil slopes

ZHAN Liangtong

Journal Article

ORGANIC CARBON STOCKS IN A SILTY TEXTURED SOIL FOLLOWING REINTEGRATION OF A 20 YEARS OLD × SITE INTO

Journal Article

HIGH QUALITY DEVELOPMENTAL APPROACH FOR SOIL AND WATER CONSERVATION AND ECOLOGICAL PROTECTION ON THE

Journal Article

LINKING CROP WATER PRODUCTIVITY TO SOIL PHYSICAL, CHEMICAL AND MICROBIAL PROPERTIES

Di WU, Allan A. ANDALES, Hui YANG, Qing SUN, Shichao CHEN, Xiuwei GUO, Donghao LI, Taisheng DU

Journal Article

Effect of mulching with maize straw on water infiltration and soil loss at different initial soil moistures

Yifu ZHANG,Hongwen LI,Jin HE,Qingjie WANG,Ying CHEN,Wanzhi CHEN,Shaochun MA

Journal Article

Strategies and Advices for Harmony Evolution Between Water Balance and Territorial Space

Hu Qingfang , Chen Xiumin , Gao Juan , Jin Junliang , Wang Yintang , Zhang Jianyun

Journal Article

How did Archimedes discover the law of buoyancy by experiment?

Hidetaka KUROKI

Journal Article

Identification of abnormal operating conditions and intelligent decision system

Xiuliang LI, Junjie JIANG, Hongye SU, Jian CHU

Journal Article

Application of fractal theory to unsaturated soil mechanics

XU Yongfu, TONG Lixin

Journal Article

Agricultural Resource Balance and International Import Potential of China by 2050

Zheng Haixia, You Fei, Luo Qiyou, Tang Huajun

Journal Article