Scale-dependent controls on ecological functions in agroecosystems of Argentina
Agricultural managers that operate at different levels (plot, farm, landscape, region) need to understand how ecological functions (energy, nutrients and water flows and cycles) are controlled by scale-dependent factors. Using cross-level data from the Argentine pampas, analyzed by simple and multip...
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| Veröffentlicht in: | Agriculture, ecosystems & environment ecosystems & environment, 2004, Vol.101 (1), p.39-51 |
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| creator | Viglizzo, E.F. Pordomingo, A.J. Castro, M.G. Lértora, F.A. Bernardos, J.N. |
| description | Agricultural managers that operate at different levels (plot, farm, landscape, region) need to understand how ecological functions (energy, nutrients and water flows and cycles) are controlled by scale-dependent factors. Using cross-level data from the Argentine pampas, analyzed by simple and multiple regression analysis, we demonstrate that controls differ from one spatio-temporal level to the other, but they can be altered by humans. In the Argentine pampas, environmental controls (climate, landform, soil quality) seem to have a strong top-down influence on lower levels. But the bottom-up aggregated effect of anthropogenic controls seems to scale-up to upper levels and counteract such influence. Thus, the more intense use of land and technology in small units, the larger the up-scaling human influence on ecological functions. We suggest that a discrimination among farming intensity levels is useful and necessary to understand and predict human controls on ecological functions across scales. |
| doi_str_mv | 10.1016/S0167-8809(03)00229-9 |
| format | Article |
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Agricultural development</subject><subject>intensive farming</subject><subject>Land use</subject><subject>Scale-dependent controlling factors</subject><subject>Technology</subject><subject>Top-down and bottom-up controls</subject><issn>0167-8809</issn><issn>1873-2305</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWKs_QdyLoofVfOxXTlKKX1DoofYcssmkRLZJTbZC_73ZVvRoDpPDPO_M8CB0SfA9waR6WKRS502D-S1mdxhTynN-hEakqVlOGS6P0egXOUVnMX7g9ChrRmi-ULKDXMMGnAbXZ8q7PvguZt5loHznVzYRmdk61VvvYmZdJlfBp17cxR7WiTTZJKxS2Dp5jk6M7CJc_PxjtHx-ep--5rP5y9t0MssV47TPVUFoTasazHCYlJi0ra4UV3UpORSlli0uykoTDsA0ayrdsFZyVWDSaDCMjdHNYe4m-M8txF6sbVTQddKB30ZBOGVlzQewPIAq-BgDGLEJdi3DThAsBn1ir08MbgRmYq9P8JS7_lkgYxJggnTKxr9wWdeMN2Xirg6ckV4kMYlZLigmDKfhvKI0EY8HApKPLwtBRGXBKdA2gOqF9vafW74B8ryOXA</recordid><startdate>2004</startdate><enddate>2004</enddate><creator>Viglizzo, E.F.</creator><creator>Pordomingo, A.J.</creator><creator>Castro, M.G.</creator><creator>Lértora, F.A.</creator><creator>Bernardos, J.N.</creator><general>Elsevier B.V</general><general>Elsevier Science</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope></search><sort><creationdate>2004</creationdate><title>Scale-dependent controls on ecological functions in agroecosystems of Argentina</title><author>Viglizzo, E.F. ; Pordomingo, A.J. ; Castro, M.G. ; Lértora, F.A. ; Bernardos, J.N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c392t-c4127267ef0167aa01bbd6c9c75a9e45dab0456d19ee3d386d83ba9c4018def33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>agroecosystems</topic><topic>Agronomy. 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Agricultural development</topic><topic>intensive farming</topic><topic>Land use</topic><topic>Scale-dependent controlling factors</topic><topic>Technology</topic><topic>Top-down and bottom-up controls</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Viglizzo, E.F.</creatorcontrib><creatorcontrib>Pordomingo, A.J.</creatorcontrib><creatorcontrib>Castro, M.G.</creatorcontrib><creatorcontrib>Lértora, F.A.</creatorcontrib><creatorcontrib>Bernardos, J.N.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Agriculture, ecosystems & environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Viglizzo, E.F.</au><au>Pordomingo, A.J.</au><au>Castro, M.G.</au><au>Lértora, F.A.</au><au>Bernardos, J.N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Scale-dependent controls on ecological functions in agroecosystems of Argentina</atitle><jtitle>Agriculture, ecosystems & environment</jtitle><date>2004</date><risdate>2004</risdate><volume>101</volume><issue>1</issue><spage>39</spage><epage>51</epage><pages>39-51</pages><issn>0167-8809</issn><eissn>1873-2305</eissn><coden>AEENDO</coden><abstract>Agricultural managers that operate at different levels (plot, farm, landscape, region) need to understand how ecological functions (energy, nutrients and water flows and cycles) are controlled by scale-dependent factors. 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| ispartof | Agriculture, ecosystems & environment, 2004, Vol.101 (1), p.39-51 |
| issn | 0167-8809 1873-2305 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | agroecosystems Agronomy. Soil science and plant productions Argentine agroecosystems Biological and medical sciences ecological function Ecological functions environmental factors Fundamental and applied biological sciences. Psychology General agroecology General agroecology. Agricultural and farming systems. Agricultural development. Rural area planning. Landscaping General agronomy. Plant production Generalities. Agricultural and farming systems. Agricultural development intensive farming Land use Scale-dependent controlling factors Technology Top-down and bottom-up controls |
| title | Scale-dependent controls on ecological functions in agroecosystems of Argentina |
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