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| Registros recuperados: 102 | |
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| van Benthem, Arthur A.; Kerr, Suzi. |
| Voluntary opt-in programs to reduce emissions in unregulated sectors or countries have spurred considerable discussion. Since any regulator will make errors in predicting baselines and participants will self-select into the program, adverse selection will reduce efficiency and possibly environmental integrity. In contrast, pure subsidies lead to full participation but require large financial transfers. We present a simple model to analyze this trade-off between adverse selection and infra-marginal transfers. We find that increasing the scale of voluntary programs both improves efficiency and reduces transfers. We show that discounting (paying less than full value for offsets) is inefficient and cannot be used to reduce the fraction of offsets that are... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Environmental Economics and Policy; Deforestation; Offsets; Adverse selection; REDD; Climate change policy; Opt-in.. |
| Ano: 2011 |
URL: http://purl.umn.edu/100569 |
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| Rahim, Afaf H.; van Ierland, Ekko C.; Wesseler, Justus. |
| The gum tree (Acacia senegal) in the Sahel-Sudan zone has many environmental benign functions. An important function is to control desertification. In this paper we analyze farmers' economic incentives to preserve the existing gum trees and their incentives to create new plantations using a real options approach. Results indicate that agricultural crops provide higher economic benefits as compared to gum agroforestry system. However, on the one hand, as gum arabic is produced during the dry period and land is abundant, there are low incentives for deforestation. Instead, farmers' tend to leave the land idle and let the tree growing. On the other hand, our results suggest that an increase in the prices of gum arabic of about 330 per cent is needed to induce... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Gum arabic; Deforestation; Entry and exit; Real options; Sudan; Crop Production/Industries; D4; N5; O13; Q12; Q23. |
| Ano: 2006 |
URL: http://purl.umn.edu/25720 |
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| Caviglia-Harris, Jill L.. |
| In developing countries across the globe the impact of livestock on deforestation levels has been profound. This paper explores the role of the cattle industry in household decision making for small landholders in the Brazilian Amazon. Important inquiries raised in the literature are addressed, including the determinants of the co-evolution of deforestation and cattle herds, the possibility of production specialization, and the role of cattle in household livelihoods. Panel data suggest that households have changed focus from crop introduction to cattle. Empirical models reveal that location, wealth, and education are among the important determinants of production decisions and cattle accumulation. Policy recommendations include a focus on the cattle... |
| Tipo: Journal Article |
Palavras-chave: Latin America; Brazil; Household production; Land use; Cattle; Deforestation; Land Economics/Use; Livestock Production/Industries. |
| Ano: 2005 |
URL: http://purl.umn.edu/10233 |
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| Blackman, Allen; Albers, Heidi J.; Sartorio, Beatriz Avalos; Crooks, Lisa. |
| Managed forest ecosystems-agroforestry systems in which crops such as coffee and bananas are planted side-by-side with woody perennials-are being touted as a means of safeguarding forests along with the ecological services they provide. Yet we know little about the determinants of land cover in such systems, information needed to design effective forest conservation policies. This paper presents a first-ever spatial regression analysis of land cover in a managed forest ecosystem-a shade coffee region of coastal Mexico. Using high-resolution land cover data derived from aerial photographs, along with data on the institutional, geophysical, socioeconomic, and agronomic characteristics of the study area, we find that plots in close proximity to urban centers... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Deforestation; Managed forest ecosystem; Agroforestry; Shade-grown coffee; Mexico; Spatial econometrics; Land cover; Resource /Energy Economics and Policy; O13; Q15; Q23. |
| Ano: 2003 |
URL: http://purl.umn.edu/10493 |
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| Blackman, Allen; Albers, Heidi J.; Avalos-Sartorio, Beatriz; Crooks, Lisa. |
| More than three-quarters of Mexico's coffee is grown on small plots shaded by the existing forest. Because they preserve forest cover, shade coffee farms provide vital ecological services including harboring biodiversity and preventing soil erosion. Unfortunately, tree cover in Mexico's shade coffee areas is increasingly being cleared to make way for subsistence agriculture, a direct result of the unprecedented decline of international coffee prices over the past decade. This paper summarizes the key findings of a three-year study of deforestation in Oaxaca, one of Mexico's prime regions for growing shade coffee. First, we find that deforestation during the 1990s was significant. Second, the loss of tree cover can likely be slowed by promoting... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Deforestation; Agroforestry; Shade-grown coffee; Mexico; Land cover; Resource /Energy Economics and Policy; O13; Q15; Q23. |
| Ano: 2005 |
URL: http://purl.umn.edu/10799 |
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| Diarrassouba, Malick; Boubacar, Inoussa. |
| According to FAO (2005) about 13 million hectares of the word’s forest are lost due to deforestation. Naoto (2006) found Africa to lead the list of countries with the highest rate of deforestation. This worrisome situation is further aggravated by the possible negative impacts of climate change due to an increase in the mean global temperature. Evidence supports that Africa is most likely to suffer the most the devastating impacts of natural calamities such as droughts and floods. This paper sought to evaluate the causes of deforestation in 27 Sub-Saharan African (SSA) countries. Our model uses annual data spanning from 1990 to 2004. Trade and urban population tend to be associated with a decline in deforestation. On the other hand, we found strong... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Deforestation; Sub-Saharan Africa; Development.; International Development; Q23; N 57. |
| Ano: 2009 |
URL: http://purl.umn.edu/46799 |
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| van de Steeg,Jeannette Antoinette; Sparovek,Gerd; Ranieri,Simone Beatriz Lima; Maule,Rodrigo Fernando; Cooper,Miguel; Dourado Neto,Durval; Alves,Marcelo Corrêa. |
| During the past 20 years, most settlements of the Brazilian Agrarian Reform (AR) have been established in or near better-preserved natural ecosystems, where environmental impact is likely to be negative and contribute to natural resources degradation. The objective of this work is providing a first, comprehensive insight of the impacts related to the environmental quality of these settlements, based on the primary survey of 4,340 AR settlements installed between 1985 and 2001. An index was calculated to integrate different aspects of environmental impacts in one single number. The index showed significant regional variation, with lower values (low environmental quality) for the North and Northeast of Brazil, intermediate values for the Central-west and... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Brazil; Deforestation; Environmental index. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200010 |
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| DIEZ,J.A; POLO,A; DIAZ-BURGOS,M.A; CERRI,C.C; FEIGL,B.J; PICCOLO,M.C. |
| The effect of two practices adopted by settlers (abandoned pasture and fallow land) on soil fertility of two deforested Amazonian regions (Belém-Pará and Ariquemes-Rondônia) was studied. Whenever possible, cultivated pasture, over similar time periods in both cases and in natural forest, were employed as soil fertility reference standards. Nutrient dynamics was studied using the electroultra-filtration technique. In general, deforestation, as practiced in these areas, has a degrading effect on soil fertility. The effect of burning normally leads to a pH rise caused by ash. This usually yields a favorable transitory effect, improving soil fertility conditions, however not sufficient for plant needs, as inferred from the low P and K levels. Cattle... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deforestation; Fallow land; Abandoned pasture. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000100007 |
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| Ferreira-Peruquetti,Patrícia Santos; Marco Jr.,Paulo De. |
| The effect of riparian deforestation and stream impoundments on an odonate community was studied in áreas of surviving Atlantic forest in Viçosa and in Rio Doce State Park (PERD), Marliéria, Minas Gerais, Brazil. During 1997 16 species of Libellulidae, 4 Coenagrionidae, 2 Gomphidae, 2 Calopterygidae, 1 Megapodagrionidae, 1 Aeshnidae and 3 Protoneuridae were collected. In Viçosa, the association of sampled odonates with lotic or lentic systems, and in PERD for areas with or without riparian vegetation were compared. The results suggest that although overall odonate taxonomic richness is high in areas without riparian vegetation. Likely, because productivity increase of such areas and its invasion by lentic Odonata species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Odonata community; Deforestation; Atlantic Forest; Environmental degradation; Riparian vegetation. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000200002 |
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| Registros recuperados: 102 | |
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