Impact of spring flooding on DOM characterization in a small watershed of the Hun River, China

Peng, Jianfeng; Ren, Zhaoyong; Song, Yonghui; Yu, Han‐Qing; Tang, Xiaoyu; Gao, Hongjie

doi:10.1007/s12665-015-4248-3

Cited by 13 publications

(5 citation statements)

References 26 publications

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“…Dissolved organic matter (DOM) is an organic continuum or mixture with different structures and molecular weights, containing abundant biogenic elements such as carbon, nitrogen, and phosphorus [1][2][3]. Thus, DOM plays an important role in the control of transport, speciation, and bioavailability of carbon, nitrogen, and other elements in aquatic ecosystems by providing energy sources to microorganisms [4,5], demonstrating important functions in matter cycling in aquatic ecosystems.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, DOM can be used to effectively track terrestrial sources to aid in water quality management. However, research on the fluorescence spectral characteristics of DOM in freshwater has concentrated primarily on rivers [3,5], while the influences of catchment ecosystem in eutrophic agricultural reservoirs has received relatively less attention.…”

Section: Introductionmentioning

confidence: 99%

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The Response of Catchment Ecosystems in Eutrophic Agricultural Reservoirs to Water Quality Management Using DOM Fluorescence

Jin

Lee

et al. 2019

Sustainability

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Three-dimensional excitation emission matrix (EEM) fluorescence spectroscopy was used to investigate the characteristics of dissolved organic matter (DOM) in five typical eutrophic agricultural reservoirs. Based on catchment ecosystem, the five reservoirs were divided into three pollution sources of livestock, living, and farmland sources. The quantities and qualities of DOM in the reservoirs were analyzed. Our results showed that DOM characteristics were different in eutrophic reservoirs based on source. More protein-like components were observed in the reservoirs with the living sources, while more humic-like components were seen in the reservoir with farmland sources. Additionally, correlation analysis showed different sources for protein-like and humic-like components. Protein-like components originated mainly from phytoplankton (endogenous sources), and humic-like components were from terrestrial sources. Furthermore, the high values of specific fluorescence parameters were consistent with a dominant role of endogenous DOM in eutrophic water bodies, with FI values (fluorescence index) of approximately 1.9, and β:α values (freshness index) greater than 0.7. This result indicated that mixed features dominated endogenous sources in the reservoirs, regardless of terrestrial pollution sources. By comparing our fluorescence characteristics and historical references, we confirmed that catchment ecosystems related to human activities are important factors in determination of the characteristics of DOM in aquatic environments. However, complex and extensive eutrophication requires endogenous control of water bodies, which will play a central role in improving water environments and sustainable use of reservoirs. Therefore, this study provides an effective basis for water quality assessment of eutrophic agricultural reservoirs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Response of Catchment Ecosystems in Eutrophic Agricultural Reservoirs to Water Quality Management Using DOM Fluorescence

Jin

Lee

et al. 2019

Sustainability

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“…Recent studies have shown that fluorescent dissolved organic matter (DOM) has received considerable attention as a useful method for evaluating and managing water quality in various aquatic systems [17][18][19][20][21]. First, because DOM is rich in biological elements, such as carbon, nitrogen, and phosphorus [22][23][24], it can provide energy for microorganisms, thus playing a crucial role in the transportation, speciation, and bioavailability of carbon, nitrogen, and other elements in aquatic ecosystems [25,26]. Therefore, DOM occupies a paramount role in the matter cycle of aquatic ecosystems.…”

Section: Introductionmentioning

confidence: 99%

The Response of Dissolved Organic Matter during Monsoon and Post-Monsoon Periods in the Regulated River for Sustainable Water Supply

Jin

Shin

et al. 2020

Sustainability

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Dissolved organic matter (DOM) in rivers are an important factor in pollution management due to the abundance of stored carbon. Using fluorescent spectroscopy, we investigated the temporal and spatial dynamics of DOM compositions, as well as their properties, for two of the major four regulated rivers—Han River (HR) and Geum River (GR) in South Korea. We collected eight sampling sites, four from each of the two rivers (from close to the weirs) in order to observe the integrated effects of different land use (terrestrial input) during the monsoon (July) and post-monsoon periods (September). High integral values of DOM compositions (July: 30.81 ± 9.71 × 103 vs. September: 1.78 ± 0.66 × 103) were present in all eight sites after heavy rainfall during the monsoon period, which indicated that Asian monsoon climates occupy a potent role in the DOM compositions of the rivers. Regarding DOM compositions, tryptophan-like and fulvic acid-like components were predominant in HR and GR, especially in GR with high integral values of protein-like and humus components. However, the properties of terrestrial DOM between HR and GR are markedly different. These results considered due to the different land use, where the terrestrial DOM shows a low degree of humification due to a high percentage of agriculture and urban land use in GR. Furthermore, these two rivers are typical regulated rivers, due to their weir constructions. High values of DOM components were present in the downstream of the weirs; however, increasingly high patterns appeared in the HR because of heavy rainfall (511.01 mm in HR; 376.33 mm in GR). In addition, a lower increasing trend of humic-like component was present in the GR due to a low percentage of forest land use/cover. These results suggest that the effect of the weir on rivers can be highlighted by the different percentages of land use/cover under the conditions of the monsoon period. Hence, DOM fluorescence can serve as an effective indicator for providing an early signal for the complex impacts of the different land use and rainfall in the regulated river systems.

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“…In the Jiulong River, Luo et al (2014) studied the dynamics of ammonia-oxidizing archaea and bacteria in relation to nitrification along simulated dissolved oxygen gradient in sediment-water interface of the river estuarine wetland. Peng et al (2015a) stated that potential water pollution derived from melting snow is a growing concern to watershed management in northern climates such as in Northeast China. For most small watersheds in the Hun River Basin, substantial portions of the annual load of pollutants such as organic matter, ammonia, phosphorus and metals come from snowmelt and early spring runoff.…”

mentioning

confidence: 99%

“…This seems an attractive practice for efficient waste treatment. Different aspects sludge treatment, such as reactivation and succession of microbial communities and fermentation, were investigated byPeng et al (2015a) andLiu et al (2015a), respectively. Nitrogen removal from waste water is an important issue for water quality improvement in China(Gao et al 2015a) and other countries (AlDwairi et al 2014;Cicchella et al 2014;Pascual Aguilar et al 2014).…”

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confidence: 99%

Waste water treatment and pollution control in the Liao River Basin

et al. 2015

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Rapid economic development and population growth in China go hand-in-hand with increasing urbanisation, involving growing mega-cities, industrialization, and intensified agriculture. As a result, natural resources are increasingly stressed and productive management strategies towards sustainable planning are urgently needed. Pollution containing hazardous substances for environmental and human health, depletion of water resources as a result of overexploitation, soil degradation and air pollution in mega-cities (such as Beijing or Shanghai) are increasing at an alarming rate. Consequently, the protection of aquatic ecosystems and the security of drinking water provision are becoming an increasing challenge in water management. The Chinese government recognized the importance and complexity of the situation and has initiated a program entitled ''Major Program of Science and Technology for Water Pollution and Governance'' (2006-2020) (Major Water Program). While shortages resulting from regional resource depletion have led to plans for large-scale water transport from distant water-rich areas of China (Water Diversion Project), the water quality problems in other areas require efficient, flexible, and site-specific solutions and overall management concepts. China is internationally cooperating with many countries to tackle the severe environmental problems and learning from their experiences. In particular, China can benefit from the lessons learnt in Germany concerning the rehabilitation of water resources in areas heavily affected by chemical industry and mining after the reunification in 1989. German-Chinese cooperation in water sciences started over 25 years ago and is dealing now with increasing challenges in the 21st century (Chen et al. 2015). Under the umbrella of ''International Partnerships for Sustainable Technologies and Services for Climate Protection and the Environment'' (CLIENT) under the ''Research for Sustainable Development'' framework programme the Federal Ministry of Education and Research of Germany (BMBF) started a series of research projects supporting the Chinese Major Water Program in several regions, the lakes, Taihu, Chaohu and Dianchi, as well as the Liao River Basin (Fig. 1). The Liao River Basin is located in northeast China with two river systems, one system is the Liao River formed by converging Xiliao River and Dongliao River, and the other system is the Daliao River formed by converging Hun River and Taizi River (Fig. 1). The province of Liaoning derived its name from the river. Shenyang is the provincial capital of Liaoning. Liaoning was one of the first provinces in China to industrialize and heavy industry led to severe environmental pollution including the water environment. Liaoning has the largest economy of Northeast China covering a wide range of industries, such as metallurgy, petroleum, chemical industries, pulp and paper making, pharmaceutical industry, printing and dyeing, machinery, electronics, metal refining, construction materials, ore and coal mining, etc. The Lia...

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Impact of spring flooding on DOM characterization in a small watershed of the Hun River, China

Cited by 13 publications

References 26 publications

The Response of Catchment Ecosystems in Eutrophic Agricultural Reservoirs to Water Quality Management Using DOM Fluorescence

The Response of Catchment Ecosystems in Eutrophic Agricultural Reservoirs to Water Quality Management Using DOM Fluorescence

The Response of Dissolved Organic Matter during Monsoon and Post-Monsoon Periods in the Regulated River for Sustainable Water Supply

Waste water treatment and pollution control in the Liao River Basin

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