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

Wang, Xiaohan; Liu, Pu; Zhang, Meng; Wang, Qiqi; Xia, Yu

doi:10.1007/s12665-015-4459-7

Cited by 7 publications

(2 citation statements)

References 43 publications

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“…Compared to SOC, the TN of coastal tidal flats in our study area was lower. Therefore, the ratio of C/N was very high ( Figure 2 ), which was similar to the results of other studies [ 28 , 33 , 34 ].…”

Section: Discussionsupporting

confidence: 90%

Spatial Variation of Soil Organic Carbon and Total Nitrogen in the Coastal Area of Mid-Eastern China

Liu

Liao

et al. 2017

IJERPH

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Soils play an important role in sequestrating atmospheric CO2. Coastal tidal flats have been intensively reclaimed for food security and living spaces worldwide. We aimed to identify the changes of soil organic carbon (SOC) and total nitrogen (TN) following coastal reclamation and their spatial variation in the coastal area of mid-Eastern China to provide information for coastal cropland management. We measured SOC and TN of 463 soil samples in the coastal plain of mid-Eastern China. The results showed that SOC and TN increased highly from the uncultivated coastal tidal flat (2.49 g·kg−1 and 0.21 g·kg−1, respectively) to the cropland (10.73 g·kg−1 and 1.3 g·kg−1, respectively). After long-term cultivation, SOC and TN in the old farmland (12.98 g·kg−1 and 1.49 g·kg−1, respectively) were greater than those in the young farmland (5.76 g·kg−1 and 0.86 g·kg−1, respectively). The density of SOC in the uncultivated coastal tidal flat, young farmland, and old farmland were 0.68 kg·C·m−2, 1.52 kg·C·m−2, and 3.31 kg·C·m−2, respectively. The density of TN in the uncultivated coastal tidal flat, young farmland and old farmland were 0.05 kg·N·m−2, 0.23 kg·N·m−2, and 0.38 kg·N·m−2, respectively. The C/N (11.17) in the uncultivated coastal tidal flat was highest comparing to that in the young and old farmland due to lower nitrogen. The C/N increased from 6.78 to 8.71 following cultivation. Reclaimed coastal tidal flats had high carbon and nitrogen sequestration potential that not only mitigated the threat of global warming, but also improved soil fertility for crop production. Coastal management of cropland should consider the spatial distribution of SOC and TN to improve ecosystem services of coastal soils.

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Section: Discussionsupporting

confidence: 90%

Spatial Variation of Soil Organic Carbon and Total Nitrogen in the Coastal Area of Mid-Eastern China

Liu

Liao

et al. 2017

IJERPH

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“…When the quality of sea water could not meet the standard of Grade IV, then it was defined as Inferior to Grade IV. Water quality data for Grade IV and Inferior to Grade IV (GB3097-1997) were collected for the TBNA during 2001 to 2014 and their proportions were calculated to show the sea water pollution status 40 , shown as “pollution degree of sea water” in this paper.…”

Section: Methodsmentioning

confidence: 99%

Monitoring and analysis of coastal reclamation from 1995–2015 in Tianjin Binhai New Area, China

Chen

Huang

Chen

et al. 2017

Sci Rep

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Increasing coastal reclamation activities have been undertaken to solve the conflict between people and land resources, creating significant challenges for coordinating coastal reclamation, economic development and environmental protection. This paper analyzes the effects of coast reclamation on Gross Domestic Product growth and the quality of inshore seawater in the Tianjin Binhai New Area. Remote sensing and a Geographic Information System were used to extract the information of coastal reclamation. The correlation between the area of coastal reclamation, GDP growth and the quality of inshore seawater was analyzed and a decoupling elasticity model was used to explore trends in the relationship between economic development and coastal reclamation. Results showed that coastal reclamation activities played an important role in promoting economic development, but greatly damaged the ecological environment. Although the relationship between coastal reclamation and economic development has weakened during the last three periods, the influence on the environment will continue because of the cumulative effects of pollution. To maintain a balance between coastal reclamation, economic development and environmental protection, (1) coastal reclamation planning must address both economic and environmental outcomes; (2) environmental deficiencies from existing coastal reclamation projects must be rectified; and (3) the legal system regulating coastal reclamation needs to be refined and strengthened.

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Understanding pollution behavior among farmers: Exploring the influence of social networks and political identity on reducing straw burning in China

Zheng

Luo

2022

Energy Research & Social Science

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

Cited by 7 publications

References 43 publications

Spatial Variation of Soil Organic Carbon and Total Nitrogen in the Coastal Area of Mid-Eastern China

Spatial Variation of Soil Organic Carbon and Total Nitrogen in the Coastal Area of Mid-Eastern China

Monitoring and analysis of coastal reclamation from 1995–2015 in Tianjin Binhai New Area, China

Understanding pollution behavior among farmers: Exploring the influence of social networks and political identity on reducing straw burning in China

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