Parallelism of Nutrients and CO 2 Dynamics: Evidence Based on Long-Term Data in Taihu Lake
作者： Xingcheng Yan , Songjun Wu , Jie Xu , Xiaoguang Xu , Guoxiang Wang
DOI: 10.1007/S00128-020-03009-2
关键词: Environmental science 、 Ecosystem 、 Pollution 、 Drainage basin 、 Chlorophyll a 、 River mouth 、 Nutrient 、 Carbon cycle 、 Hydrology 、 Spatial heterogeneity
摘要: Inland lakes are important ecosystems for the carbon cycle at both regional and global scales. However, a knowledge gap still exists about correlations between partial pressure of CO2 (pCO2) nutrient dynamics in lakes. In this study, we analysed long-term pCO2 Taihu Lake. Strong spatial heterogeneity was observed with highest concentrations occurring River mouth significant lower (p < 0.01) East Other zone. For pCO2, average values were 1136.81 ± 1240.16 μatm, 433.07 ± 305.45 487.05 ± 414.02 μatm Rive mouth, Taihu, zone, respectively. Statistical analysis revealed that significantly positively related to (TN: total nitrogen NH4+: ammonium) (p < 0.01), but negatively Chla (Chlorophyll a) zone (p < 0.01). The parallelism Lake highlights dual effects external pollution inputs from surrounding catchment. addition, progressive mitigation found not only nutrients also which attributed previous effort environmental protections basin. Our results suggest importance monitoring future assessment anthropogenic impacts on freshwater
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