Spartina alterniflora Leaf and Soil Eco-Stoichiometry in the Yancheng Coastal Wetland
| Autor: | Yinru Lei, Cai Yang, Dou Zhiguo, Zhijun Liu, Xiajie Zhai, Wei Li, Xueyan Zuo, Lijuan Cui |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Yancheng Elk Nature Reserve Soil salinity Soil test leaf-soil chemistry.chemical_element Wetland Plant Science 010501 environmental sciences Spartina alterniflora complex mixtures 010603 evolutionary biology 01 natural sciences Article Nutrient Ecosystem Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences alien invasive plants geography ecological stoichiometry geography.geographical_feature_category Ecology biology Phosphorus fungi Botany food and beverages Soil carbon biology.organism_classification Agronomy chemistry QK1-989 Environmental science |
| Zdroj: | Plants Volume 10 Issue 1 Plants, Vol 10, Iss 13, p 13 (2021) |
| ISSN: | 2223-7747 |
| DOI: | 10.3390/plants10010013 |
| Popis: | Carbon, nitrogen, and phosphorus&mdash nutrient and restrictive elements for plant growth and important components of the plant body&mdash are mainly transferred and exchanged between plants and the soil environment. Changes in the carbon, nitrogen, and phosphorus eco-stoichiometry greatly impact the growth and expansion of Spartina alterniflora, and understanding these changes can reveal the nutrient coordination mechanism among ecosystem components. To explore the relationship between leaf and soil eco-stoichiometry and determine the key soil factors that affect leaf eco-stoichiometry, we collected leaf and soil samples of S. alterniflora at different tidal levels (i.e., 1, 3, and 5 km away from the coastline) in a coastal wetland in the Yancheng Elk Nature Reserve, Jiangsu province. We measured the leaf and soil carbon, nitrogen, and phosphorus contents and ratios, as well as the soil salinity and soil organic carbon. The results revealed the following. (1) The leaf stoichiometric characteristics and soil properties of S. alterniflora differed significantly between tidal levels for example, total carbon, nitrogen, soil organic carbon were detected at their highest levels at 3 km and lowest levels at 5 km. (2) Significant correlations were detected between the leaf stoichiometric characteristics and soil characteristics. Additionally, nitrogen limitation was evident in the study area, as indicated by the nitrogen&ndash phosphorus ratio being less than 14 and the soil nitrogen&ndash phosphorus ratio being less than 1. (3) Soil salinity and the soil carbon&ndash nitrogen ratio were shown to be the key factors that affect the eco-stoichiometric characteristics of S. alterniflora. These findings furthered our understanding of the nutrient distribution mechanisms and invasion strategy of S. alterniflora and can thus be used to guide S. alterniflora control policies formulated by government management departments in China. |
| Databáze: | OpenAIRE |
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