Spatial and seasonal variation of salt ions under the influence of halophytes, in a coastal flat in eastern China

Wu, Yanyou; Liu, Rongcheng; Zhao, Yu-Guo; Li, Pingping; Liu, Cong‐Qiang

doi:10.1007/s00254-008-1427-5

Cited by 22 publications

(14 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The result suggests there was a saline accumulation stage from autumn to winter. Wu et al (2009) found a similar result in his study, which many researchers attributed to seasonal rainfall (Silvestri et al 2005;Tho et al 2007). Generally, soil salt content represents the level of soil salinity.…”

Section: Discussionsupporting

confidence: 80%

“…The soil water content was lowest in winter. The trend was regulated by the rainfall pattern and irrigation practice (Wu et al 2009). Soil is lacking in organic carbon if the concentration of SOC is in the range of 3.5-5.8 g/kg according to The Standard of the National Soil Survey Office (1979).…”

Section: Discussionmentioning

confidence: 99%

“…The variability in pH was very low. The soil water content was lowest in winter on account of little precipitation and irrigation in this reason (Wu et al 2009). The variability in water content was moderate and the CV of autumn, winter, and spring were 0.09, 0.07, and 0.06, respectively.…”

Section: Distribution Of Soil Basic Properties In the Study Areamentioning

confidence: 95%

See 2 more Smart Citations

Spatial and temporal variations of soil organic carbon and total nitrogen pools in the coastal reclamation area, eastern China

et al. 2015

View full text Add to dashboard Cite

The spatial and temporal variation of soil organic carbon (SOC) and soil total nitrogen (STN) in a coastal reclamation area in eastern China were studied based on the ordinary kriging method. The 0-20 cm soil organic carbon pool (SOCP) and soil total nitrogen pool (STNP) ranged from 4.38 to 15.92 Mg/ha and from 0.24 to 2.37 Mg/ha, respectively, during the observed period. The results show there was a low level of spatial variation in both SOC and STN, which is to some extent the result of the same farmland management practiced in this region. The seasonal variation of SOC was attributed to plant growth and crop residue returning back to soil, while the spatial variation was mainly resulted from the fertilization practice. The average 0-20 cm SOCP and STNP were 10.38 ± 2.50 and 1.27 ± 0.38 Mg/ha, respectively, in the study region, both of which were much lower than in other ecosystems. Further analysis indicated that SOC was positively correlated with STN. This work revealed that the reclamation area from the tidal flat should be a potential sink for SOC and STN.

show abstract

Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Spatial and temporal variations of soil organic carbon and total nitrogen pools in the coastal reclamation area, eastern China

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Halophyte plants alter soil properties by leaf‐litter decomposition and nutrient cycling (Cao et al , ; Chaudhary et al , ). However, climate, groundwater levels and microtopography also affect the soil characteristics and ionic composition of soil solution, which in turn affect the distribution of coastal vegetation (Wu et al , ). Soil pH was significantly decreased in winter and summer seasons than in rainy season (Table ), which might be associated with leaching and dissolution of salt due to rainwater.…”

Section: Discussionmentioning

confidence: 99%

Seasonal Patterns of Microbial Community Structure and Enzyme Activities in Coastal Saline Soils of Perennial Halophytes

2017

View full text Add to dashboard Cite

Perennial halophytes are known to be one of the most influential parameters in coastal ecosystem affecting ecosystem processes. The aim of this study was to investigate the changes in soil microbial community structure and enzyme activities in different halophyte‐covered soils (Arthrocnemum indicum, Aeluropus lagopoides, Heleochloa setulosa and Suaeda nudiflora) with control soil (un‐vegetated) that were collected in three seasons (rainy, winter and summer) from intertidal coastal soils of Gujarat, India. Soil microbial community structure was assessed using phospholipid fatty acid (PLFA) profiling. Halophytes influenced significantly soil micro‐environment by exerting effects on the soil chemical characteristics, enzyme activities and microbial community structure. The activities of β‐glucosidase, urease and alkaline phosphatase were significantly higher in halophyte‐covered soils than in control soil. Among four halophyte‐covered soils, the highest amounts of total, bacterial, actinomycetes and fungal PLFAs were observed in Arthrocnemum soil. The concentrations of total, bacterial, actinomycetes and fungal PLFAs were also significantly higher in summer and winter seasons than in rainy season, whereas enzyme activities also vary with seasons. The non‐metric multidimensional scaling analysis PLFA profiling revealed that the structure of microbial community significantly differed in all seasons as well as between control and halophyte‐covered soils. These shifts in microbial community were due to the higher abundance of Gram‐positive, total bacterial and actinomycetes PLFAs in summer and winter seasons than in rainy season, whereas abundance of fungal biomarker was significantly higher in rainy season than in other seasons. Among halophytes, significantly higher abundance of Gram‐positive, Gram‐negative and total bacteria was observed in Arthrocnemum, Heleochloa and Suaeda whereas the lowest in control soil. Halophytes exhibited improved soil microbial activities, which is important for healthy ecosystem. Copyright © 2017 John Wiley & Sons, Ltd.

show abstract

“…The role of urban vegetation to improve environmental quality, increase the economic, physical and social health of communities is important to quality of life (McPherson et al, 2000;Wu et al, 2009). However, in these coastal areas, the soil salinity is high (15-65 dS m −1 ), with two dominant ions (sodium and chlorine) from sea water (Sun et al, 2013), the groundwater table is shallow (0.8-1.5 m) (Wang et al, 1993;Xing et al, 2013), and windy conditions in spring and winter lead to high evaporation and salt accumulation on the soil surface.…”

Section: Introductionmentioning

confidence: 99%

Influence of mulches on urban vegetation construction in coastal saline land under drip irrigation in North China

Chen

Kang

Wan

et al. 2015

Agricultural Water Management

View full text Add to dashboard Cite

a b s t r a c tIn order to generate information for reclaiming coastal saline sandy-loam soil for urban vegetation construction around Bohai Bay in North China, a field experiment combined with drip irrigation and setting a gravel-sand layer beneath the saline soil but above the water table was conducted to study the effect of mulches on irrigated water amount, soil salt control and willow (Salix babylonica L.) growth, and construction costs were also estimated during 2012 and 2013. The three mulch treatments were control treatment with no mulch (C1), black shading net mulch (C2) and straw mulch (C3). In order to leach salts in the soil profile, irrigation was triggered by the soil matric potential threshold at 20-cm soil depth of −5 kPa in the early stage, and this was changed to −10 kPa until the end of the first growing year, and to −20 kPa for the second year. The results showed that (1) the straw mulch consumed the least irrigation water, followed by the black shading net mulch and the control treatment. Compared to the control treatment, the amount of irrigation for the straw mulch had decreased by 12% in 2012 and 27% in 2013. (2) The salinity reduction was mainly related to rainfall and the strategy of drip irrigation; and the mulches, especially straw mulch, decreased the risk of salt accumulation in early spring. (3) The best growth characteristic of plants and the optimal investment cost were for straw mulch, and the high investment cost in 2012 was due to soil preparation cost and the willows, gravel and sand cost was high and then it had decreased by 90% in 2013. From the combined points of water saving, plant growth and investment cost, the use of straw mulch with drip irrigation could aid in urban vegetation construction on coastal saline land in North China.

show abstract

Spatial and seasonal variation of salt ions under the influence of halophytes, in a coastal flat in eastern China

Cited by 22 publications

References 31 publications

Spatial and temporal variations of soil organic carbon and total nitrogen pools in the coastal reclamation area, eastern China

Spatial and temporal variations of soil organic carbon and total nitrogen pools in the coastal reclamation area, eastern China

Seasonal Patterns of Microbial Community Structure and Enzyme Activities in Coastal Saline Soils of Perennial Halophytes

Influence of mulches on urban vegetation construction in coastal saline land under drip irrigation in North China

Contact Info

Product

Resources

About