Contributions of groundwater conditions to soil and water salinization

Salama, R. B.; Otto, Claus; Fitzpatrick, Rob

doi:10.1007/s100400050179

Cited by 175 publications

(81 citation statements)

References 34 publications

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“…Survival rate of C. japonica seedlings Salinization in coastal reclaimed lands involves the process of salt accumulation near the soil surface. It is often caused by the capillary rise of salt from water tables due to an increased potential for evapotranspiration (Salama et al, 1999;Rengasamy, 2006). Salt stress can restrict plant survival because the uptake of water and nutrients from high-salinity soil is limited (Koyro, 2006;Park et al, 2017).…”

Section: Nutrients In Soils and Growth And Nutrient Uptake Of Seedlingsmentioning

confidence: 99%

Inoculation with Bacillus licheniformis MH48 to improve Camellia japonicaseedling development in coastal lands

Park¹,

Jeong²,

Ahn³

2017

Turk J Agric For

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IntroductionCamellia japonica is a broad-leaf evergreen tree that is naturally distributed in coastal areas of the southern parts of Korea (Park et al., 2017). This tree constitutes an important type of coastal vegetation in Korea because the tree is relatively tolerant to sea breeze and salinity. However, most C. japonica forests in the coastal areas of Korea have been degraded due to human activities such as road construction, urban development, and seedling collections for potted planting. The Korean government has made efforts to restore C. japonica forests in coastal areas, but restoration is very difficult (Park et al., 2017). In coastal environments, plant growth and survival are affected by the salinity of the soil and by the low availability of nutrients (Williams et al., 1998;Weber and D' Antonio, 1999). In particular, excess salt in the soil can decrease plant growth by inhibiting the osmotic uptake of water by roots or by causing nutritional imbalance through competitive ion absorption (Koyro, 2006).Plant growth-promoting rhizobacteria (PGPR) are the rhizosphere bacteria that can enhance plant growth by a wide variety of mechanisms including phosphate solubilization, siderophore production, biological nitrogen fixation, rhizosphere engineering, phytohormone production, and interference with pathogen toxin production. The potentiality of PGPR in agriculture and forestry is steadily increased as it offers an attractive way to replace the use of chemical fertilizers, pesticides, and other supplements (

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Section: Nutrients In Soils and Growth And Nutrient Uptake Of Seedlingsmentioning

confidence: 99%

Inoculation with Bacillus licheniformis MH48 to improve Camellia japonicaseedling development in coastal lands

Park¹,

Jeong²,

Ahn³

2017

Turk J Agric For

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“…2. The exponential increase of Cl counts in Rincón, starting in the early 1930s, likely relates to soil salinization, a known consequence of irrigated agriculture in arid regions (Banin and Fish 1995;Salama et al 1999). The signal is secondary, as substantiated by its early timing compared to the onset of irrigation.…”

Section: Chronologymentioning

confidence: 99%

First lacustrine varve chronologies from Mexico: impact of droughts, ENSO and human activity since AD 1840 as recorded in maar sediments from Valle de Santiago

et al. 2009

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We present varve chronologies for sediments from two maar lakes in the Valle de Santiago region (Central Mexico): Hoya La Alberca (AD 1852(AD -1973 and Hoya Rincón de Parangueo (AD 1839(AD -1943. These are the first varve chronologies for Mexican lakes. The varved sections were anchored with tephras from Colima (1913) and Paricutín (1943Paricutín ( /1944 and 210 Pb ages. We compare the sequences using the thickness of seasonal laminae and element counts (Al, Si, S, Cl, K, Ti, Mn, Fe, and Sr) determined by micro X-ray fluorescence spectrometry. The formation of the varve sublaminae is attributed to the strongly seasonal climate regime. Limited rainfall and high evaporation rates in winter and spring induce precipitation of carbonates (high Ca, Sr) enriched in 13 C and 18 O, whereas rainfall in summer increases organic and clastic input (plagioclase, quartz) with high counts of lithogenic elements (K, Al, Ti, and Si). Eolian input of Ti occurs also in the dry season. Moving correlations (5-yr windows) of the Ca and Ti counts show similar development in both sequences until the 1930s. Positive correlations indicate mixing of allochthonous Ti and autochthonous Ca, while negative correlations indicate their separation in sublaminae. Negative excursions in the correlations correspond with historic and reconstructed droughts, El Niño events, and This paper is dedicated to our colleague and friend Jim Luhr,

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“…Despite the above mentioned advantages, long-time capillary upflow may result in soil salinization in the irrigated areas with shallow water tables, if significant salt exists in the groundwater and soil (Silberstein et al, 1999;Salama et al, 1999;Valenza et al, 2000;Jorenush and Sepaskhah, 2003). Fortunately, natural infiltration of excess rainfall in rainy seasons can leach some accumulated salt into the subsoil and the shallow groundwater.…”

Section: Introductionmentioning

confidence: 99%

Water fluxes at a fluctuating water table and groundwater contributions to wheat water use in the lower Yellow River flood plain, China

Yang

Wan

Deng

et al. 2007

Hydrological Processes

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Abstract:Capillary upflow from and deep percolation to a water table may be important in crop water supply in irrigated areas of the lower Yellow River flood plain, north China. These fluxes at the water table and the variations of the capillary upflow in relation to crop evapotranspiration need to be investigated to quantify the effect of a water table on soil water balance and to improve agricultural water management. A large weighing lysimeter was used to determine daily crop evapotranspiration, daily capillary upflow from and daily percolation to a fluctuating water table during a rotation period with wheat growing in a dry season and maize in a rainy season. The water table depth varied in the range 0Ð7-2Ð3 m during the maize growth period and 1Ð6-2Ð4 m during the wheat growth period. Experimental results showed that the capillary upflow and the percolation were significant components of the soil water balance. Three distinctly different phases for the water fluxes at the water table were observed through the rotation period: water downward period, the period of no or small water fluxes, and water upward period. It implied that the temporal pattern of these water fluxes at the water table was intimately associated with the temporal distribution of rainfall through the rotation period. An empirical equation was determined to estimate the capillary upflow in relation to wheat evapotranspiration and root zone soil water content for local irrigation scheduling. Coupled with the FAO-Penman-Monteith equation, the equation offers a fast and low cost solution to assess the effect of capillary upflow from a water table on wheat water use.

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Contributions of groundwater conditions to soil and water salinization

Cited by 175 publications

References 34 publications

Inoculation with Bacillus licheniformis MH48 to improve Camellia japonicaseedling development in coastal lands

Inoculation with Bacillus licheniformis MH48 to improve Camellia japonicaseedling development in coastal lands

First lacustrine varve chronologies from Mexico: impact of droughts, ENSO and human activity since AD 1840 as recorded in maar sediments from Valle de Santiago

Water fluxes at a fluctuating water table and groundwater contributions to wheat water use in the lower Yellow River flood plain, China

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