Temporal changes in fractions and loading of sediment nitrogen during the holistic growth period of &lt;i&gt;Phragmites australis&lt;/i&gt; in littoral Lake Chaohu, China&lt;sup&gt;*&lt;/sup&gt;

Jian, Yu; Lehao, Wang; Dejun, KANG; Zheng, Gongyi; Guo, Bin; Zhong, Jun; Zheng, Xiangzhou; Zhang, Yushu; Yuansong, Cai; Hong, Ding

doi:10.18307/2021.0514

Journal of Lake Sciences

2021

DOI: 10.18307/2021.0514

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Temporal changes in fractions and loading of sediment nitrogen during the holistic growth period of <i>Phragmites australis</i> in littoral Lake Chaohu, China<sup>*</sup>

Yu Jian¹,

Wang Lehao²,

KANG Dejun³

et al.

Abstract: 10 &'QüîÛ&'topr×PÚäÜÝ.¥íõ®_2cÄè2Ì&'Q(üAEBrS~'t ñ?c2bÏG3 ZB&'top2bc¬c.ÖZgCËyÁ&Q('?.ÛgéÔ÷fyM¯(c§ÏGí ÇR»¬¨Y(4èAE&'Qüñ?Çf×Ì?ÇÜtLc3 123 &'Q(M¯(iS~'tñ?`S

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Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

Yao

Wang²,

Xie

et al. 2022

Sci Rep

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Carbon storage in wetland ecosystems is an important part of the carbon cycle of terrestrial ecosystems and provides important ecosystem services. Chaohu Wetland is a typical freshwater lake wetland in China. In this study, soil and plant samples were collected every 500 m through three sample lines of different vegetation habitats (estuarine banks, woodlands and shrub beaches) and different offshore distances, revealing the spatial distribution characteristics of soil organic carbon density (SOCD) in Chaohu wetland. The overall SOCD of Chaohu wetland was low, with different habitats ranking as Woodland > Estuary and riverside > Shrub and beach. SOCD of different offshore distances had no obvious law, and the SOCD decreased significantly with soil depth. The plant biomass was significantly higher at the woodland habitat than at other habitats. Most of soil nutrient indicators were the highest at the woodland habitat, while the estuary-riverside habitat had the highest N and P contents. Soil and plant nutrients at different offshore distances had no obvious change patterns. The contents of soil K, Ca, Mg, and N were significantly positively correlated with SOCD, but soil bulk density and pH were significantly negatively correlated with SOCD, and vegetation P content was significantly negatively correlated with SOCD. The spatial pattern of SOCD changes in this lake coastal wetland was determined by the combined effects of plant nutrients, biomass, and soil physical and chemical properties. Our results indicate Chaohu wetlands may have been experiencing serious degradation. The SOCD of Chaohu wetland is lower than that of other wetlands in China, which is mainly affected by human activities. Different offshore distances and habitat heterogeneity are the main factors affecting the soil carbon cycle of the wetland.

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Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

Yao

Wang²,

Xie

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

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Temporal changes in fractions and loading of sediment nitrogen during the holistic growth period of <i>Phragmites australis</i> in littoral Lake Chaohu, China<sup>*</sup>

Abstract: 10 &'QüîÛ&'topr×PÚäÜÝ.¥íõ®_2cÄè2Ì&'Q(üAEBrS~'t ñ?c2bÏG3 ZB&'top2bc¬c.ÖZgCËyÁ&Q('?.ÛgéÔ÷fyM¯(c§ÏGí ÇR»¬¨Y(4èAE&'Qüñ?Çf×Ì?ÇÜtLc3 123 &'Q(M¯(iS~'tñ?`S

Cited by 1 publication

References 16 publications

Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

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