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| Knoot, Tricia G; Department of Natural Resource Ecology and Management, Iowa State University; tknoot@iastate.edu; Schulte, Lisa A.; Department of Natural Resource Ecology and Management, Iowa State University; lschulte@iastate.edu; Tyndall, John C.; Department of Natural Resource Ecology and Management, Iowa State University; jtyndall@iastate.edu; Palik, Brian J.; USDA Forest Service; bpalik@fs.fed.us. |
| Current ecological, economic, and social conditions present unique challenges to natural resource managers seeking to maintain the resilience of disturbance-dependent ecosystems, such as oak (Quercus spp.) forests. Oak-dominated ecosystems throughout the U.S. have historically been perpetuated through periodic disturbance, such as fire, but more recently show decline given shifting disturbance regimes associated with human land management decisions. We characterized the state of the social-ecological oak forest ecosystem in the midwestern U.S. through the perspectives of 32 natural resource professionals. Data from interviews with these change agents provided an integrative understanding of key system components, cross-scale interactions, dependencies,... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Conservation; Oak forests; Privately-owned lands; Qualitative interviews; Resilience; Systems analysis. |
| Ano: 2010 |
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| Vermaat, Jan E; Earth Sciences and Economics, Faculty of Earth and Life Sciences, VU University; j.e.vermaat@vu.nl; Broekx, Steven; Flemish Institute for Technological Research (VITO); steven.broekx@vito.be; Van Eck, Bert; Deltares; Bert.vanEck@deltares.nl; Engelen, Guy; Flemish Institute for Technological Research (VITO); guy.engelen@vito.be; Hellmann, Fritz; Institute for Environmental Studies (IVM), VU University; f.a.hellmann@vu.nl; De Kok, Jean Luc; Flemish Institute for Technological Research (VITO); Jean-Luc.DeKok@vito.be; Van der Kwast, Hans; Flemish Institute for Technological Research (VITO); hans.vanderkwast@vito.be; Maes, Joachim; Joint Research Centre-European Commission; joachim.maes@jrc.ec.europa.eu; Salomons, Wim; Institute for Environmental Studies (IVM), VU University; wim.salomons@home.nl; Van Deursen, Willem; PCRaster; willem@pcraster.nl. |
| Using the systems approach framework (SAF), a coupled model suite was developed for simulating land-use decision making in response to nutrient abatement costs and water and nutrient fluxes in the hydrological network of the Scheldt River, and nutrient fluxes in the estuary and adjacent coastal sea. The purpose was to assess the efficiency of different long-term water quality improvement measures in current and future climate and societal settings, targeting nitrogen (N) load reduction. The spatial-dynamic model suite consists of two dynamically linked modules: PCRaster is used for the drainage network and is combined with ExtendSim modules for farming decision making and estuarine N dispersal. Model predictions of annual mean flow and total N... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Catchment hydrology; Coupled modeling; Estuary; Eutrophication; Land use; Systems analysis; Watershed nutrient loading. |
| Ano: 2012 |
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| LOPES, M. A.. |
| O inesperado surgimento e a rápida disseminação do Coronavírus despertam apreensão e alarme em todo o mundo. O risco de pandemia bem ilustra a natureza dos problemas complexos da atualidade, que podem emergir sem avisos a partir de inter-relações entre elementos biológicos, físicos, sociais, culturais, políticos e tecnológicos. Os problemas complexos cada vez mais comuns no mundo globalizado desafiam análises e soluções simples e míopes ou, pior, se estabelecem e ganham força a partir da passividade e da inação. É por isso que a ciência de sistemas precisa ser priorizada e fortalecida, para ganharmos capacidade de promover mais colaboração intersetorial e multidisciplinar, quebrando os "silos" científicas e institucionais no processo de formular políticas... |
| Tipo: Artigo na mídia |
Palavras-chave: Covid-19; Coronavírus; Sistemas complexos; Ciência de sistemas; Systems analysis; Pandemis. |
| Ano: 2020 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123696 |
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