Arid
DOI10.1016/j.jenvman.2008.02.013
Agriculture adjustment, land-use transition and protected areas in Northwestern Argentina
Izquierdo, Andrea E.1; Grau, H. Ricardo2
通讯作者Izquierdo, Andrea E.
来源期刊JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN0301-4797
EISSN1095-8630
出版年2009
卷号90期号:2页码:858-865
英文摘要

Land-use change is the main component of regional environmental change, while protected areas represent a direct land use policy to prevent its potentially negative effects on biodiversity and environmental services. We combined an analysis of trends in land use and human demography with trends in creation of protected areas during the last three decades in northwestern Argentina, a subtropical region including a wide range of environments. The eighty nine administrative analysis units of the region were classified into four ecological groups based on their percentage of cover by the six eco-regions of the study area: (1) "Dry valleys": dominated by Middle-elevation deserts; (2) "Highlands", dominated by High-elevation alpine zones and plateaus: (3) "Humid ecosystems", dominated by Foggy grasslands and Humid forests, and (4) "Dry forests". Between 1970 and 2002, human population became concentrated in urban areas and land use trends varied greatly among the four ecological groups. Agricultural area decreased in the Highlands and increased in the other regions, particularly in the Dry forests. Domestic animals decreased in Humid ecosystems, Highlands and the Dry valleys: and remained constant in the Dry forests. Several protected areas were created, but most of them were established in regions undergoing a decreasing intensity of land use. Overall, the analysis shows that agricultural production is becoming concentrated in the areas more suitable for modern agriculture while marginal agriculture areas and, particularly, extensive grazing are decreasing. The creation of protected areas reflects the decreasing opportunity costs of marginal areas and is failing to protect the eco-regions most threatened by current land-use trends. (C) 2008 Elsevier Ltd. All rights reserved.


英文关键词Eco-regions Ecosystems recovery GAP analysis Land-use change Land-use transition
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000261895500020
WOS关键词FOREST TRANSITION ; TROPICAL DEFORESTATION ; MIGRATION ; GLOBALIZATION ; ECOSYSTEMS ; AMAZON
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/161467
作者单位1.Univ Nacl Tucuman, Lab Invest Ecol Yungas, RA-4107 San Miguel De Tucuman, Argentina;
2.Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina
推荐引用方式
GB/T 7714
Izquierdo, Andrea E.,Grau, H. Ricardo. Agriculture adjustment, land-use transition and protected areas in Northwestern Argentina[J],2009,90(2):858-865.
APA Izquierdo, Andrea E.,&Grau, H. Ricardo.(2009).Agriculture adjustment, land-use transition and protected areas in Northwestern Argentina.JOURNAL OF ENVIRONMENTAL MANAGEMENT,90(2),858-865.
MLA Izquierdo, Andrea E.,et al."Agriculture adjustment, land-use transition and protected areas in Northwestern Argentina".JOURNAL OF ENVIRONMENTAL MANAGEMENT 90.2(2009):858-865.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Izquierdo, Andrea E.]的文章
[Grau, H. Ricardo]的文章
百度学术
百度学术中相似的文章
[Izquierdo, Andrea E.]的文章
[Grau, H. Ricardo]的文章
必应学术
必应学术中相似的文章
[Izquierdo, Andrea E.]的文章
[Grau, H. Ricardo]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。