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Authors Gu, XX; Feng, HY; Tang, T; Tam, NFY; Pan, H; Zhu, QC; Dong, Y; Fazlioglu, F; Chen, LZ
Author Full Name Gu, Xiaoxuan; Feng, Hongyu; Tang, Ting; Tam, Nora Fung-Yee; Pan, Hao; Zhu, Qichong; Dong, Ying; Fazlioglu, Fatih; Chen, Luzhen
Title Predicting the invasive potential of a non-native mangrove reforested plant (Laguncularia racemosa) in China
Source ECOLOGICAL ENGINEERING
Language English
Document Type Article
Author Keywords Mangroves; Salinity; Shade tolerance; Photosynthesis; Biological invasion
Keywords Plus WATER-USE EFFICIENCY; RHIZOPHORA-MANGLE; AVICENNIA-MARINA; GAS-EXCHANGE; AEGICERAS-CORNICULATUM; PHENOTYPIC PLASTICITY; LEAF DEMOGRAPHY; SALINITY; GROWTH; SALT
Abstract Mangroves are critical inter-tidal ecosystems with high productivity and ecological significance. Afforestation was regarded as one of the key projects worldwide in recovering mangrove ecosystem function. Laguncularia racemosa, a non-native mangroves species in China has been used in mangrove afforestation, while its invasiveness is widely concerned. Understanding how it tolerates shade and salinity stresses is crucial as these factors can affect its invasive potential. However, the effects of soil salinity and light on mangroves (especially on non-native species) are ambiguous. We examined the combined effects of salinity and light on the growth and physiological responses of L. racemosa and predicted an extensive range of dispersal habitats for L. racemosa in a typical estuary using Kriging model. The field surveys showed that the seedling density and seedling height were positively correlated with light availability but negatively correlated with salinity. Our greenhouse experiment also demonstrated that moderate shading (60-80% PAR) and low salinity treatments (0-10 psu) enhanced the survival and growth of seedlings, whereas high salinity limited their assimilation rates (A), independent of the light levels. Under high salinity (30 psu) and low light level (20%), L. racemosa seedlings employed a water-saving strategy (248.96 +/- 24.27 mu mol.mmol(-1) in instantaneous water use efficiency), which helped them to improve their adaptability to stressful environmental conditions and maintain their growth. Our findings indicate the combined effects of salinity and light on the growth strategies of L. racemosa as well as its environmental tolerance to high salinity which limits its growth and survival in coastal ecosystems. These results can provide a reference for the management of non-native mangrove species in China and worldwide.
Author Address [Gu, Xiaoxuan; Feng, Hongyu; Tang, Ting; Pan, Hao; Zhu, Qichong; Dong, Ying; Fazlioglu, Fatih; Chen, Luzhen] Xiamen Univ, Coll Environm & Ecol, Minist Educ Coastal & Wetland Ecosyst, Key Lab, Xiamen 361102, Fujian, Peoples R China; [Tam, Nora Fung-Yee] City Univ Hong Kong, Dept Chem, SAR999077, Hong Kong, Peoples R China
Reprint Address Chen, LZ (reprint author), Xiamen Univ, Coll Environm & Ecol, Minist Educ Coastal & Wetland Ecosyst, Key Lab, Xiamen 361102, Fujian, Peoples R China.
E-mail Address luzhenchen@xmu.edu.cn
ResearcherID Number ; Fazlioglu, Fatih/A-4824-2018
ORCID Number FENG, Hongyu/0000-0001-9658-3498; Fazlioglu, Fatih/0000-0002-4723-3640
Funding Agency and Grant Number National Natural Science Foundation of ChinaNational Natural Science Foundation of China [31770579, 41476071]; National Key Research and Development Program of China [2017YFC0506103]; Fundamental Research Funds for the Central Universities of ChinaFundamental Research Funds for the Central Universities [20720180118]; Key Laboratory of the Coastal and Wetland Ecosystems [WELRI201601]; State Key Laboratory of Marine Environmental Science [MELRI1603]
Funding Text The authors are thankful to Q. Lin, L. Xu, Q. Huang, Q. Wu, and A. Bergman for their help with greenhouse experiment, and L. Luo and S. Wu for their assistance in the field survey. This project was jointly supported by the National Natural Science Foundation of China (#31770579 and #41476071) and the National Key Research and Development Program of China (2017YFC0506103), the Fundamental Research Funds for the Central Universities of China (20720180118), the Key Laboratory of the Coastal and Wetland Ecosystems (WELRI201601) and the State Key Laboratory of Marine Environmental Science (MELRI1603).
Publisher ELSEVIER
Publisher City AMSTERDAM
Publisher Address RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
ISSN 0925-8574
29-Character Source Abbreviation ECOL ENG
ISO Source Abbreviation Ecol. Eng.
Publication Date NOV
Year Published 2019
Volume 139
Article Number UNSP 105591
Digital Object Identifier (DOI) 10.1016/j.ecoleng.2019.105591
Page Count 12
Web of Science Category Ecology; Engineering, Environmental; Environmental Sciences
Subject Category Environmental Sciences & Ecology; Engineering
Document Delivery Number JA4PA
Unique Article Identifier WOS:000487810100014
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