Ecological stoichiometry of carbon, nitrogen, and phosphorus of periphyton in different habitats of Caohai Wetland, Guizhou Province

Wang, Tianyou; Xia, Pinhua; Lin, Tao; Xin, Du

doi:10.18307/2021.0313

Cited by 2 publications

(1 citation statement)

References 34 publications

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“…The total area of Caohai is 120.00 km², and the water area reaches 22.39 km². It belongs to the mountainous subtropical plateau monsoon climate, with a rainy season from May to October and an average annual precipitation of about 950.9mm [13][14]. (Figure 1)…”

Section: Overview Of the Study Areamentioning

confidence: 99%

Distribution and Release Fluxes of Phosphorus from Sediments in the Lake Caohai, Guizhou

2023

AJEE

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A typical grass-type lake, Caohai, Guizhou, was used as the study object. The morphology and release flux of phosphorus in Caohai sediment were analyzed by the chemical continuous extraction method and pore water diffusion model. The results showed that the TP content of Caohai sediment was 559.75 mg/kg, much lower than that of other lakes on the Yunnan-Guizhou Plateau; the release flux was -0.0009-0.0518 mg/(m 2 -d); the phosphorus form content was Res-P>NaOH-NRP>NaOH-SRP>BD-P>HCl-P>NH4Cl-P in descending order. However, due to the high proportion of organic phosphorus in the Caohai, the ecological risk of its potential release was high. In this study, the author found that the sediment phosphorus content and release flux of grass-type lakes, represented by Guizhou Caohai, were lower than those of algal-type lakes, which had important implications for the conservation management of grass-type lakes.

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Section: Overview Of the Study Areamentioning

confidence: 99%

Distribution and Release Fluxes of Phosphorus from Sediments in the Lake Caohai, Guizhou

2023

AJEE

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Effects of restoration years on soil nitrogen and phosphorus in inland salt marshes

Zhao,

Wan,

Yang

et al. 2024

PeerJ

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Inland salt marsh wetlands have very important ecological functions in semi-arid areas. However, degradation and soil desertification have impacted these areas, making it necessary to study the impact of wetland restoration years on the soil quality of salt marsh wetland. We used remote sensing methods, field surveys, and inquiries to examine the seasonal profile effects of two-, four-, and six-year restoration periods on total nitrogen (TN), total phosphorus (TP) and the ratio of nitrogen to phosphorus (N:P) in P. australis and S. triqueter wetland natural states. Our results showed that soil TN in P. australis wetland in restored conditions was higher than that in natural conditions. The average soil TP of the S. triqueter wetlands at 0–10 cm, 10–20 cm, 20–30 cm, and 30–40 cm layers was 0.36 g/kg, 0.31 g/kg, 0.21 g/kg, and 0.17 g/kg s in September, respectively. The soil TP of the S. triqueter wetland increased slightly over the entire growing season. The restoration years had a great influence on the soil TP of the S. triqueter wetland from May to July. The soil TN in the P. australis wetland was almost restored to its natural condition in each layer during the six-year restoration period. The soil TP of the S. triqueter wetland was higher in the restored two-year period and showed a decreasing trend with an increased soil depth. Our conclusions can significantly guide the restoration of inland salt marsh wetlands.

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Ecological stoichiometry of carbon, nitrogen, and phosphorus of periphyton in different habitats of Caohai Wetland, Guizhou Province

Cited by 2 publications

References 34 publications

Distribution and Release Fluxes of Phosphorus from Sediments in the Lake Caohai, Guizhou

Distribution and Release Fluxes of Phosphorus from Sediments in the Lake Caohai, Guizhou

Effects of restoration years on soil nitrogen and phosphorus in inland salt marshes

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