|
|
|
| Registros recuperados: 311 | |
|
|
| Conroy, Michael J; USGS Cooperative Fish and Wildlife Research Unit; conroy@forestry.uga.edu; Allen, Craig; University of Nebraska; allencr@unl.edu; Peterson, James T; USGS Cooperative Fish and Wildlife Research Unit;; Pritchard, Lowell, Jr.; Emory University; lpritc2@emory.edu; Moore, Clinton T; ;. |
| The southern Piedmont of the southeastern United States epitomizes the complex and seemingly intractable problems and hard decisions that result from uncontrolled urban and suburban sprawl. Here we consider three recurrent themes in complicated problems involving complex systems: (1) scale dependencies and cross-scale, often nonlinear relationships; (2) resilience, in particular the potential for complex systems to move to alternate stable states with decreased ecological and/or economic value; and (3) uncertainty in the ability to understand and predict outcomes, perhaps particularly those that occur as a result of human impacts. We consider these issues in the context of landscape-level decision making, using as an example water resources and lotic... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Piedmont; Adaptive management; Land use; Model; Resilience; Scale; Sprawl; Uncertainty; Urbanization; Water resources. |
| Ano: 2003 |
|
| |
|
| |
|
|
| Helming, Katharina; Leibniz-Centre for Agricultural Landscape Research (ZALF); khelming@zalf.de. |
| Ex ante impact assessment can help in structuring the analysis of human-environment interactions thereby supporting land use decision making for sustainable development. The contributions to this special feature focus on some of the challenges of making land use impact assessment operational for policy making. A total of nine papers deal with the needs and uses of assessment tools for policy making at the European level, with the value-based influence in scenario development, and with ex ante impact assessment studies in different contexts, spatial systems, and for different purposes and user groups. The concept of landscape multifunctionality was implicitly or explicitly employed as an integrating entity between socioeconomic and biogeophysical features... |
| Tipo: Peer-Reviewed Synthesis |
Palavras-chave: Impact assessment; Landscape; Land use; Multifunctionality; Science-policy interface. |
| Ano: 2011 |
|
| |
|
|
| In the Río de la Plata grasslands (RPG) biogeographical region of South America, agricultural activities have undergone important changes during the last 15–18 years because of technological improvements and new national and international market conditions. We characterized changes in the landscape structure between 1985–1989 and 2002–2004 for eight pilot areas distributed across the main regional environmental gradients. These areas incorporated approximately 35% of the 7.5 × 105 km² of the system. Our approach involved the generation of land-use and land cover maps, the analysis of landscape metrics, and the computation of annual transition probabilities between land cover types. All of the... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Campos; Fragmentation; Grasslands; Land use; Landscape dynamics pampas; Remote sensing; Spatial metrics. |
| Ano: 2008 |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| FERREIRA, R. R. M.; BARDALES, N. G.; SILVA, L. M. da; MIQUELONI, D. P.; WADT, L. H. de O.. |
| A castanheira (Bertholletia excelsa Bonpl.) é uma espécie que ocorre em toda a região Amazônica e o único produto no mercado internacional com produção, quase exclusivamente, em florestas tropicais primárias. Apesar de todos os esforços dos pesquisadores em detalhar ao máximo os níveis de mapeamento, os estudos pedológicos ainda são poucos em escala de maior detalhe, principalmente, em áreas mais remotas como os seringais. O levantamento de solos dessas localidades no Acre é de fundamental importância para o seu desenvolvimento, além de fornecer subsídios primordiais para o melhor uso da terra, auxiliando na geração de renda e no melhor aproveitamento dos recursos naturais com menor impacto possível ao ambiente. Este trabalho teve por objetivo apresentar a... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Levantamento semidetalhado; Produto florestal não madeireiro (PFNM); Castanha do brasil; Seringal Cachoeira; PAE Chico Mendes; Xapuri (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Clasificación de suelos; Nuez del Brasil; Reconocimiento de suelos; Suelos arcillosos; Uso de la tierra.; Castanha do pará; Bertholletia excelsa; Uso da terra; Reconhecimento do solo; Classificação do solo; Argissolos; Análise do solo; Brazil nuts; Land use; Soil surveys; Soil classification; Clay soils.. |
| Ano: 2017 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1087703 |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Lubowski, Ruben N.; Vesterby, Marlow; Bucholtz, Shawn; Baez, Alba; Roberts, Michael J.. |
| This publication presents the results of the latest (2002) inventory of U.S. major land uses, drawing on data from the Census, public land management and conservation agencies, and other sources. The data are synthesized by State to calculate the use of several broad classes and subclasses of agricultural and nonagricultural land over time. The United States has a total land area of nearly 2.3 billion acres. Major uses in 2002 were forest-use land, 651 million acres (28.8 percent); grassland pasture and range land, 587 million acres (25.9 percent); cropland, 442 million acres (19.5 percent); special uses (primarily parks and wildlife areas), 297 million acres (13.1 percent); miscellaneous other uses, 228 million acres (10.1 percent); and urban land, 60... |
| Tipo: Report |
Palavras-chave: Land use; Land-use change; Agricultural land; Nonagricultural land; Cropland; Forest-use land; Forestland; Pasture; Rangeland; Rural residential land; Special uses; Urban land; Land Economics/Use. |
| Ano: 2006 |
URL: http://purl.umn.edu/7203 |
| |
|
|
| Siddig, El Fatih Ali; El-Harizi, Khalid; Prato, Bettina. |
| Despite the 2005 Comprehensive Peace Agreement, which brought to an end 20 years of civil war in the Sudan, this country continues to experience smaller-scale conflicts, particularly around access to and control of natural resources. Some observers lay the blame for this on ethnopolitical or tribal divisions. However, this paper argues that there are a variety of factors at play behind these conflicts, notably the combination of resource scarcity with a crisis of governance that is particularly evident in transitional areas like the Kordofan region. To gain a sense of the range of conflicts around natural resources in Kordofan, the authors reviewed existing records such as government archives; conducted interviews with politicians, federal and state... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Conflict management; Natural resource management; Small farmers; Land use; Livelihoods; Public spending; Infrastructure; Property rights; Governance; Sustainability; Sudan; East Africa; Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/42402 |
| |
|
| |
|
| |
|
|
| TENORIO, A. R. de M.; GRACA, J. J. da C.; GOES, J. E. M.; MENDEZ, J. R.; GAMA, J. R. N. F.; SILVA, P. R. O. da; CHAGAS, P. S. M. das; SILVA, R. N. P. da; AMERICO, R. R.; PEREIRA, W. L. M.. |
| bitstream/item/223708/1/Mapeamento-dos-solos-da-estacao.pdf |
| Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) |
Palavras-chave: Castanhal; Pará; Brasil; Classificação do Solo; Manejo do Solo; Reconhecimento do Solo; Uso da Terra; Amazonia; Land use; Soil classification; Soil management; Soil surveys. |
| Ano: 1999 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374949 |
| |
| Registros recuperados: 311 | |
|
|
|
