Nitrogen sources, processes, and associated impacts of climate and land-use changes in a coastal China watershed: Insights from the INCA-N model

Ervinia, Ayu; Huang, Jinliang; Zhang, Zhenyu

doi:10.1016/j.marpolbul.2020.111502

Cited by 16 publications

(4 citation statements)

References 56 publications

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“…Many scholars worldwide have researched this area. For example, Ervinia [16] assessed the associated impacts of climate and land-use changes in China s coastal watershed using the Integrated Nitrogen CAtchments (INCA-N) model. Similarly, Tang et al [17] evaluated land-use changes by linking ecosystem services values (ESVs) between the estuary and non-estuary zones of the coastal watershed in south-eastern China.…”

Section: Introductionmentioning

confidence: 99%

Land-Use and Land-Cover (LULC) Change Detection and the Implications for Coastal Water Resource Management in the Wami–Ruvu Basin, Tanzania

et al. 2021

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Evaluation of river basins requires land-use and land-cover (LULC) change detection to determine hydrological and ecological conditions for sustainable use of their resources. This study assessed LULC changes over 28 years (1990–2018) in the Wami–Ruvu Basin, located in Tanzania, Africa. Six pairs of images acquired using Landsat 5 TM and 8 OLI sensors in 1990 and 2018, respectively, were mosaicked into a single composite image of the basin. A supervised classification using the Neural Network classifier and training data was used to create LULC maps for 1990 and 2018, and targeted the following eight classes of agriculture, forest, grassland, bushland, built-up, bare soil, water, and wetland. The results show that over the past three decades, water and wetland areas have decreased by 0.3%, forest areas by 15.4%, and grassland by 6.7%, while agricultural, bushland, bare soil, and the built-up areas have increased by 11.6%, 8.2%, 1.6%, and 0.8%, respectively. LULC transformations were assessed with water discharge, precipitation, and temperature, and the population from 1990 to 2018. The results revealed decreases in precipitation, water discharge by 4130 m3, temperature rise by 1 °C, and an increase in population from 5.4 to 10 million. For proper management of water-resources, we propose three strategies for water-use efficiency-techniques, a review legal frameworks, and time-based LULC monitoring. This study provides a reference for water resources sustainability for other countries with basins threatened by LULC changes.

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Section: Introductionmentioning

confidence: 99%

Land-Use and Land-Cover (LULC) Change Detection and the Implications for Coastal Water Resource Management in the Wami–Ruvu Basin, Tanzania

et al. 2021

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“…between the simulated and monitoring results were calculated (Ervinia et al, 2020;Wu et al, 2017). The river flow data was obtained from hydrological stations at the outlet of the sub-watershed.…”

Section: Climate Change Scenario and Modelling Evaluationmentioning

confidence: 99%

Exploring dynamics of riverine phosphorus exports under future climate change using a process-based catchment model

Tong

Chen

Wen

et al. 2022

Journal of Hydrology

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“…For instance, Jin et al employed the Integrated Nitrogen Catchments (INCA-N) model to link upstream processes to downstream water quality of NH 4 + -N in the Hampshire Avon catchment [6]. Ervinia et al applied the INCA-N model to identify the source and processes of NH 4 + -N in the Jiulong River Watershed (JRW) [7]. Zhang et al employed QUAL2K model to explore the transport of NH 4 + -N in a creek watershed with sparse data in southeast of China [8].…”

Section: Introductionmentioning

confidence: 99%

Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins

Yin

Chen

Wang

et al. 2022

Water

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Ammonium nitrogen (NH4+-N), which naturally arises from the decomposition of organic substances through ammonification, has a tremendous influence on local water quality. Therefore, it is vital for water quality protection to assess the amount, sources, and streamflow transport of NH4+-N. SPAtially Referenced Regressions on Watershed attributes (SPARROW), which is a hybrid empirical and mechanistic modeling technique based on a regression approach, can be used to conduct studies of different spatial scales on nutrient streamflow transport. In this paper, the load and delivery of NH4+-N in Poyang Lake Basin (PLB) and Haihe River Basin (HRB) were estimated using SPARROW. In PLB, NH4+-N load streamflow transport originating from point sources and farmland accounted for 41.83% and 32.84%, respectively. In HRB, NH4+-N load streamflow transport originating from residential land and farmland accounted for 40.16% and 36.75%, respectively. Hence, the following measures should be taken: In PLB, it is important to enhance the management of the point sources, such as municipal and industrial wastewater. In HRB, feasible measures include controlling the domestic pollution and reducing the usage of chemical fertilizers. In addition, increasing the vegetation coverage of both basins may be beneficial to their nutrient management. The SPARROW models built for PLB and HRB can serve as references for future uses for different basins with various conditions, extending this model’s scope and adaptability.

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Nitrogen sources, processes, and associated impacts of climate and land-use changes in a coastal China watershed: Insights from the INCA-N model

Cited by 16 publications

References 56 publications

Land-Use and Land-Cover (LULC) Change Detection and the Implications for Coastal Water Resource Management in the Wami–Ruvu Basin, Tanzania

Land-Use and Land-Cover (LULC) Change Detection and the Implications for Coastal Water Resource Management in the Wami–Ruvu Basin, Tanzania

Exploring dynamics of riverine phosphorus exports under future climate change using a process-based catchment model

Ammonium Nitrogen Streamflow Transport Modelling and Spatial Analysis in Two Chinese Basins

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