Effects of Different Fertilizer and Irrigation Water Types, and Dissolved Organic Matter on Soil C and N Mineralization in Crop Rotation Farmland

Shang, Fangze; Ren, Shumei; Yang, Peiling; Li, Changsheng; Ma, Ning

doi:10.1007/s11270-015-2667-0

Cited by 32 publications

(12 citation statements)

References 102 publications

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“…The DOC content is widely used to estimate the concentration of DOM (Filep and Rékási 2011). DOC plays important roles in element cycling, especially in the cycling of soil organic carbon in agricultural soils (Shang et al 2015). In this study, the DOC content had no significant differences among treatments at S0, S1 and S2 stages (Fig.…”

Section: Concentration Of Docmentioning

confidence: 57%

“…Numerous biotic and abiotic factors affect the content and structure of soil DOM, including soil physiochemical properties, climate, crop types and agricultural management practices (Long et al 2015;Shang et al 2015;Smebye et al 2016). The fertilization and crop residue management are the prominent management factors which had profound influences on soil DOM (Qiu et al 2015;Shang et al 2015). The turnover of DOM directly improved soil organic matter content and soil nutrients supply, and increased the aggregate of soil and the capacity of water and nutrients through appropriate tillage practices (Guggenberger and Kaiser 2003).…”

Section: Introductionmentioning

confidence: 99%

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Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

Gao

Jian

Cao

et al. 2018

Journal of Integrative Agriculture

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Dissolved organic matter (DOM) plays important roles in soil biogeochemistry activity and nutrients transportation in soils, but studies regarding the long-term effects of green manures on the content and structure of DOM in red paddy soil have not been reported yet. A long-term green manure experiment established in 1982 was utilized to test the DOM contents in different treatments, and the spectral characteristics of DOM were investigated by using ultraviolet-visible (UV-Vis) spectrometry and Fourier transform infrared (FTIR) spectrometry. The experiment included four cropping systems: ricerice-milk vetch (RRV), rice-rice-rape (RRP), rice-rice-ryegrass (RRG) and rice-rice-winter fallow (RRF), among them, milk vetch, rape, and ryegrass are popular winter green manure species in southern China. The results showed that the content of dissolved organic carbon (DOC), which is widely used to estimate the concentration of DOM, was significantly promoted after the incorporation of green manures compared with the other sampling stages. The contents of aromatic groups and the degree of humification of DOM increased in RRV and RRP, suggesting more complex compositions of the soil DOM after long-term application of milk vetch and rape. The contents of phenol, alcohol and carboxylic acid group at the mature stage of early rice were significantly higher than those at the stage of after green manures turned over of green manures, especially for the RRV treatment. The absorption ratio of FTIR indicated that winter plantation of rape increased the aromatic-C/aliphatic-C ratio, and ryegrass increased the aromatic-C/carboxyl-C ratio. In conclusion, long-term planting

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Section: Concentration Of Docmentioning

confidence: 57%

Section: Introductionmentioning

confidence: 99%

Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

Gao

Jian

Cao

et al. 2018

Journal of Integrative Agriculture

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“…Human activity plays an important role in this process [26,27]. On the one hand, anthropogenic inputs such as domestic sewage, industrial effluents, fertilizers, and irrigation can directly increase the concentrations of riverine carbon and nitrogen [28,29]. On the other hand, human activities have ecological impacts [1].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Anthropogenic Changes on the Mun River Water: Insight from Spatio-Distributions and Relationship of C and N Species in Northeast Thailand

Liu

Han

Liu

et al. 2019

IJERPH

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C and N species, including dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), dissolved organic nitrogen (DON), NO3− and NH4+ contents in 57 river water samples collected from the Mun River of Thailand were measured to determine the relationships between these dissolved load species and their impacts on the environment. DOC values varied between 1.71 and 40.08 mg/L, averaging 11.14 mg/L; DON values ranged from 0.20 to 1.37 mg/L, with an average value of 0.48 mg/L; NO3−-N values averaged 0.18 mg/L; and NH4+-N values averaged 0.15 mg/L. DOC contents increased while DON and NO3− values decreased along the flow direction. The concentrations of NH4+ maintained the same level in the whole watershed. DOC and DON values exhibited clearly higher concentrations in comparison with other rivers worldwide and were inextricably linked with anthropogenic inputs. The relationships of DOC, DON, and anthropogenic ions imply that there are two different anthropogenic sources (industrial activities and agricultural activities) of the dissolved load in the Mun River watershed. The limited correlations between the DON, NO3−, and NH4+ indicate that the N species are not dominated by a single factor, and reciprocal transformations of riverine N pool are complex. Based on the environmental water quality standard reported by the EC (European Communities) and the World Health Organization, assessments of the water quality using the parameters of pH, dissolved oxygen (DO), NO3−, NH4+, and TN (total nitrogen) in the Mun River were conducted. The results demonstrate that the river water faces potential environmental pollution, and anthropogenic inputs endanger local water quality and the aquatic community. Therefore, the local government should restrict and reduce the anthropogenic inputs discharged in to rivers, and launch long-term monitoring of water quality.

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“…Some river water and reservoir water have a low δ 18 O-NO 3 value. This is due to the fact that the high content of NH 4 + increased the reaction rate of nitrification, which leads to more O atoms being used from H 2 O [28][29][30].…”

Section: Concentration and Transformation Of Nitrogen Speciesmentioning

confidence: 99%

Pollution Processes in Chinese Mining Area from Isotope Evidence

Meng

Yang

Qin

2018

Pol. J. Environ. Stud.

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Nitrate pollution of water has become a worldwide water quality problem, which has been an important factor in ecosystem destruction [1-2]. In recent years, the increased nitrate concentrations in water bodies caused by intensive human activity, industrial production, domestic sewage discharge, fertilizer application, landfill pollutants, and fossil fuel leakage have attracted the attention of researchers [3-4]. Excessive nitrates in drinking water and food can transform into nitrosamines, which is a carcinogenic substance in the intestines and stomach, endangering the health of humans and animals [5]. Accordingly, numerous independent countries and the World Health Organization (WHO) have stipulated that NO 3-N concentrations in drinking water be limited to under 10 mg/L [6]. The composition and variation of a stable isotope in water originates from the stage of water vapor entering the atmosphere during the hydrological cycle. Isotope fractionation also runs through all sections of the hydrological cycle. Therefore, a stable isotope can be used to analyze the source, pathway, redistribution, and recharge of water vapor in a more comprehensive way, so as to further understand the continuous changes of water vapor in various temporal and spatial scales [7-9]. The global meteoric water line (GMWL), defined by Craig

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Effects of Different Fertilizer and Irrigation Water Types, and Dissolved Organic Matter on Soil C and N Mineralization in Crop Rotation Farmland

Cited by 32 publications

References 102 publications

Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

Effects of long-term green manure application on the content and structure of dissolved organic matter in red paddy soil

Impacts of Anthropogenic Changes on the Mun River Water: Insight from Spatio-Distributions and Relationship of C and N Species in Northeast Thailand

Pollution Processes in Chinese Mining Area from Isotope Evidence

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