干旱区生态环境知识资源中心(Arid): Late Holocene Paleonvironmental Evolution of Two Coastal Lakes in Mediterranean Chile and Its Implications for Conservation Planning

Arid

DOI	10.3390/app11083478
	Late Holocene Paleonvironmental Evolution of Two Coastal Lakes in Mediterranean Chile and Its Implications for Conservation Planning
	Montes, Isis-Yelena; Banegas-Medina, Andy; Fagel, Nathalie; El Ouahabi, Meriam; Verleyen, Elie; Alvarez, Denisse; Torrejon, Fernando; Schmidt, Sabine; Lepoint, Gilles; Diaz, Gustavo; Pedreros, Pablo; Urrutia, Roberto
通讯作者	Montes, IY (corresponding author), Univ Concepcion, Ctr Environm Sci EULA Chile, POB 160-C, Concepcion, Chile. ; Montes, IY (corresponding author), Univ Concepcion, CHRIAM Water Res Ctr, Dept Aquat Syst, Fac Environm Sci, POB 160-C, Concepcion, Chile. ; Montes, IY (corresponding author), Natl Autonomous Univ Honduras UNAH, Lab Biol, Dept Sci, Danli Technol Campus,Pan Amer Highway Km 95, Danli 13201, Honduras.
来源期刊	APPLIED SCIENCES-BASEL
EISSN	2076-3417
出版年	2021
卷号	11 期号:8
英文摘要	Paleolimnological reconstructions from the mid and high latitudes in the Southern Hemisphere are still relatively scarce. Anthropogenic impacts have evidenced trophic state changes and an increase in cyanobacterial blooms in the lacustrine system of San Pedro de la Paz in the last decades. Here, we reconstructed primary production and sedimentological changes spanning the past 2500 years in two coastal lakes in Mediterranean Chile. A multiproxy approach including sedimentological, biogenic silica, carbon and nitrogen isotopes and fossil pigments analysis in sediment cores was performed in Laguna Grande (LGSP) and Laguna Chica de San Pedro (LCSP). A marked change in the sedimentology of the lakes, likely related to the terrigenous sediment inputs derived by a transition from an arid condition in the mid-Holocene to a more humid condition in the late Holocene that favoured arboreal forest establishment at 100 BC-AD 150. A period of low primary production was identified between 850 to 1050 AC for LCSP, suggesting moist and cold conditions that were possibly related to La Nina events. In recent decades, there have been increases in primary production, probably resulting from anthropogenic disturbances. These likely include the clearance of native vegetation, the introduction of exotic tree species, and urbanisation, which in turn, resulted in nutrient inputs and hence eutrophication. We conclude that an integrated management program for both lakes is urgently needed.
英文关键词	lacustrine sediments algal pigments multi-proxy reconstruction environmental changes
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000644023500001
WOS关键词	PEDRO VIII REGION ; CLIMATE-CHANGE ; SEDIMENTARY PIGMENTS ; SOUTHERN WESTERLIES ; ORGANIC-MATTER ; ALGAL PIGMENTS ; LAGUNA-CHICA ; DELTA N-15 ; SEA-LEVEL ; RECORD
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368884
作者单位	[Montes, Isis-Yelena; Banegas-Medina, Andy; Alvarez, Denisse; Torrejon, Fernando; Diaz, Gustavo; Pedreros, Pablo; Urrutia, Roberto] Univ Concepcion, Ctr Environm Sci EULA Chile, POB 160-C, Concepcion, Chile; [Montes, Isis-Yelena; Banegas-Medina, Andy; Alvarez, Denisse; Torrejon, Fernando; Diaz, Gustavo; Pedreros, Pablo; Urrutia, Roberto] Univ Concepcion, CHRIAM Water Res Ctr, Dept Aquat Syst, Fac Environm Sci, POB 160-C, Concepcion, Chile; [Montes, Isis-Yelena; Banegas-Medina, Andy] Natl Autonomous Univ Honduras UNAH, Lab Biol, Dept Sci, Danli Technol Campus,Pan Amer Highway Km 95, Danli 13201, Honduras; [Fagel, Nathalie; El Ouahabi, Meriam] Univ Liege, Dept Geol, AGEs, Allee Six Aout 14, B-4000 Liege, Belgium; [Verleyen, Elie] Univ Ghent, Dept Biol, Lab Protistol & Aquat Ecol, Krijgslaan 281-S8, B-9000 Ghent, Belgium; [Alvarez, Denisse] Univ Santo Tomas, Fac Ciencias, Concepcion 4030585, Chile; [Schmidt, Sabine] Univ Bordeaux, CNRS, EPOC, EPHE,UMR 5805, Allee Geoffroy St Hilaire, F-33615 Pessac, France; ...
推荐引用方式 GB/T 7714	Montes, Isis-Yelena,Banegas-Medina, Andy,Fagel, Nathalie,et al. Late Holocene Paleonvironmental Evolution of Two Coastal Lakes in Mediterranean Chile and Its Implications for Conservation Planning[J],2021,11(8).
APA	Montes, Isis-Yelena.,Banegas-Medina, Andy.,Fagel, Nathalie.,El Ouahabi, Meriam.,Verleyen, Elie.,...&Urrutia, Roberto.(2021).Late Holocene Paleonvironmental Evolution of Two Coastal Lakes in Mediterranean Chile and Its Implications for Conservation Planning.APPLIED SCIENCES-BASEL,11(8).
MLA	Montes, Isis-Yelena,et al."Late Holocene Paleonvironmental Evolution of Two Coastal Lakes in Mediterranean Chile and Its Implications for Conservation Planning".APPLIED SCIENCES-BASEL 11.8(2021).