干旱区生态环境知识资源中心(Arid): Impact of Extreme Weather Events on Aboveground Net Primary Productivity and Sheep Production in the Magellan Region, Southernmost Chilean Patagonia

Arid

DOI	10.3390/geosciences10080318
	Impact of Extreme Weather Events on Aboveground Net Primary Productivity and Sheep Production in the Magellan Region, Southernmost Chilean Patagonia
	Soto-Rogel, Pamela; Aravena, Juan-Carlos; Meier, Wolfgang Jens-Henrik; Gross, Pamela; Perez, Claudio; Gonzalez-Reyes, Alvaro; Griessinger, Jussi
通讯作者	Soto-Rogel, P
来源期刊	GEOSCIENCES
EISSN	2076-3263
出版年	2020
卷号	10 期号:8
英文摘要	Spatio-temporal patterns of climatic variability have effects on the environmental conditions of a given land territory and consequently determine the evolution of its productive activities. One of the most direct ways to evaluate this relationship is to measure the condition of the vegetation cover and land-use information. In southernmost South America there is a limited number of long-term studies on these matters, an incomplete network of weather stations and almost no database on ecosystems productivity. In the present work, we characterized the climate variability of the Magellan Region, southernmost Chilean Patagonia, for the last 34 years, studying key variables associated with one of its main economic sectors, sheep production, and evaluating the effect of extreme weather events on ecosystem productivity and sheep production. Our results show a marked multi-decadal character of the climatic variables, with a trend to more arid conditions for the last 8 years, together with an increase in the frequency of extreme weather events. Significant percentages of aboveground net primary productivity (ANPP) variance is explained by high precipitation, mesic temperatures, and low evapotranspiration. These conditions are, however, spatially distributed in the transition zone between deciduous forests and steppe and do not represent a general pattern for the entire region. Strong precipitation and wind velocity negatively affect lamb survival, while temperature and ANPP are positively correlated. The impact of extreme weather events on ANP and sheep production (SP) was in most of the cases significantly negative, with the exception of maximum temperature that correlated with an increase of ANPP, and droughts that showed a non-significant negative trend in ANPP. The examination of these relationships is urgent under the current scenario of climate change with the acceleration of the environmental trends here detected.
英文关键词	extreme weather events climate variability aboveground net primary productivity sheep production Magellan region Patagonia
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000576969100001
WOS关键词	PATTERNS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334660
作者单位	[Soto-Rogel, Pamela; Meier, Wolfgang Jens-Henrik; Griessinger, Jussi] Friedrich Alexander Univ Erlangen Nurnberg, Inst Geog, D-91054 Erlangen, Germany; [Aravena, Juan-Carlos] Univ Magallanes, Ctr Invest Gaia Antart, Punta Arenas 6200000, Chile; [Gross, Pamela] Serv Agr & Ganadero SAG, Punta Arenas 6200000, Chile; [Gonzalez-Reyes, Alvaro] Univ Mayor, Fac Ciencias, Hemera Ctr Observac Tierra, Escuela Ingn Forestal, Camino Piramide 5750, Santiago 8580745, Chile
推荐引用方式 GB/T 7714	Soto-Rogel, Pamela,Aravena, Juan-Carlos,Meier, Wolfgang Jens-Henrik,et al. Impact of Extreme Weather Events on Aboveground Net Primary Productivity and Sheep Production in the Magellan Region, Southernmost Chilean Patagonia[J],2020,10(8).
APA	Soto-Rogel, Pamela.,Aravena, Juan-Carlos.,Meier, Wolfgang Jens-Henrik.,Gross, Pamela.,Perez, Claudio.,...&Griessinger, Jussi.(2020).Impact of Extreme Weather Events on Aboveground Net Primary Productivity and Sheep Production in the Magellan Region, Southernmost Chilean Patagonia.GEOSCIENCES,10(8).
MLA	Soto-Rogel, Pamela,et al."Impact of Extreme Weather Events on Aboveground Net Primary Productivity and Sheep Production in the Magellan Region, Southernmost Chilean Patagonia".GEOSCIENCES 10.8(2020).