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Measures of the effects of agricultural practices on ecosystem services” (2007)

by V H Dale, S Polasky
Venue:Ecological Economics,
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A revisit to the impact of land use changes on the human well-being via altering the ecosystem provisioning services,”

by Xiangzheng Deng , Zhihui Li , Jikun Huang , Qingling Shi , Yanfei Li - Advances in Meteorology, , 2013
"... It is widely acknowledged that land use changes (LUC) associated with climate variations are affecting the human wellbeing. This paper conducted a revisit to relevant researches on the impacts of LUC on human wellbeing via specifically altering the ecosystem provisioning services. First, the explor ..."
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It is widely acknowledged that land use changes (LUC) associated with climate variations are affecting the human wellbeing. This paper conducted a revisit to relevant researches on the impacts of LUC on human wellbeing via specifically altering the ecosystem provisioning services. First, the explorations on the influences of LUC on ecosystem provisioning services were reviewed, including the researches on the influences of LUC on agroecosystem services and forest and/or grassland ecosystem services. Then the quantitative identification of the impacts of LUC on ecosystem provisioning services was commented on. In the light of enhanced observation and valuation methods, several approaches to ecosystem services and improved models for assessing those ecosystem services were assessed. The major indicators used to uncover the influences of LUC on human wellbeing were summarized including the increase of inputs and the reduction of outputs in production and the augmented health risk induced by the irrational land uses. Finally, this paper uncovered the research gaps and proposed several research directions to address these gaps.
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...intensification of row crop production have resulted in the loss of habitat and spatial heterogeneity in agroecosystem, which affects the ecosystem provisioning services [24]. Land use conversion from natural lands to croplands, grazing lands, and urban areas has been increased over time, resulted in reduced or modified biodiversity, altered functional processes, and diminished provision of ecosystem goods and services to society globally [25–27]. Some studies also indicated that the intensive agricultural development could change land use, which can further affect regional ecosystem services [28]. 2.2. Influences of LUC on the Ecosystem Services from Forest and/or Grassland. Forest and grassland ecosystems are indispensable constituent parts of terrestrial ecosystems which play important roles in global climate variations. Climate variations affect the water yield of forest and/or grassland ecosystems via its direct influence on precipitation and evaporation process of atmosphere hydrologic cycle. LUC including converting grassland or shrub lands to plantations, afforestation and reforestation, are gaining attention globally and will alter many ecosystem processes, including water yie...

An Assessment of Non-Apis Bees as Fruit and Vegetable Crop Pollinators

by Nancy Lee Adamson, Richard D. Fell, Donald E. Mullins, Lisa M. Kennedy, Douglas G. Pfeiffer, T’ai H. Roulston, As Fruit, Vegetable Crop Pollinators, Nancy Lee Adamson , 2011
"... Declines in pollinators around the globe, notably the loss of honey bees (Apis mellifera L.) to Colony Collapse Disorder, coupled with a dearth of quantitative data on non-Apis bee pollinators, led to this dissertation research, which documents the role of non-Apis bees in crop pollination in southw ..."
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Declines in pollinators around the globe, notably the loss of honey bees (Apis mellifera L.) to Colony Collapse Disorder, coupled with a dearth of quantitative data on non-Apis bee pollinators, led to this dissertation research, which documents the role of non-Apis bees in crop pollination in southwest Virginia. Major findings of this first study of its kind in the region were that non-Apis bees provided the majority of pollination—measured by visitation—for several economically important entomophilous crops (apple, blueberry, caneberry, and cucurbits); diverse bee populations may be helping to stabilize pollination service (105 species on crop flowers); landscape factors were better predictors of non-Apis crop pollination service than farm management factors or overall bee diversity; and non-Apis bees in the genera Andrena, Bombus, and Osmia were as constant as honey bees when foraging on apple. Non-Apis, primarily native, bees made up between 68 % (in caneberries) and 83 % (in cucurbits) of bees observed visiting crop flowers. While 37–59 species visited crop flowers, there was low correspondence between bee communities across or within crop systems (“within crop ” Jaccard similarity indices for richness ranged from 0.12–0.28). Bee community diversity
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...We wanted to understand if alternative forage is likely to be moresimportant in supporting bee visitation to crops or in drawing pollinators away from crops throughscompetition (Abel and Wilson 1998, =-=Dale and Polasky 2007-=-, Karanja et al. 2010).sWe also investigated connections between general diversity of bees on site withspollination service. One way to measure overall site species diversity is with the use of bowlst...

Evaluation of the Level and Impact of Selected Physiochemical Parameters of

by Chizoba Chinelo Agu, Matthew Chukwudi Menkiti, Bernard Ibezim Okolo, Patrick Chukwudi Nnaji , 2014
"... This work quantitatively evaluates the level and impact of selected physiochemical properties of fertilizer effluent on the Obinna River of Adani, Enugu State, Nigeria. The fertilizer effluent origi-nated from surrounding farms and flushed into the Obinna River. Water samples were collected from des ..."
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This work quantitatively evaluates the level and impact of selected physiochemical properties of fertilizer effluent on the Obinna River of Adani, Enugu State, Nigeria. The fertilizer effluent origi-nated from surrounding farms and flushed into the Obinna River. Water samples were collected from designated points along the river and analysed for physical, chemical and biological proper-ties using standard methods of APHA. Impact of selected key parameters such as nitrate, phos-phate, manganese, dissolved oxygen, biochemical oxygen demand and heavy metals (lead, iron and manganese), was studied. The results of the parameters were compared with the World Health Organisation (WHO) permissible standard for freshwater. Measured concentrations of phosphate (5.00, 7.21, 3.92 mg/L), manganese (1.53, 1.18, 1.47 mg/L) and lead (18.9, 21.7, 39.7 ppm) were found to be above the WHO standard while nitrate (0.04, 0.03, 0.03 mg/L) and iron (0.001, 0.001, 0.1 mg/L) were within the standard. The mean concentrations of heavy metals in-creased in the following order: Fe (0.034) < Mn (1.4) < Pb (26.8) from upstream S1 to downstream
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.... And, as long as the world faces an increase in global, regional and local populations, there will always be some added pressure on the natural resource base—the land,sfor increased food production. =-=[1]-=- noted that the most common causes of water body impairment are sediments,spathogens, nutrients, metals, dissolved oxygen and other habitat alteration and agricultural practices, which provide the foc...

Ecosystem service d

by unknown authors
"... on tr lim ou ch ral iss ho ha b s f ..."
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on tr lim ou ch ral iss ho ha b s f
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...f disservices, including loss of biodiversity, agrochemical contamination and sedimentation of waterways, pesticide poisoning of nontarget organisms, and emissions of greenhouse gases and pollutants (=-=Dale & Polasky 2007-=-; Zhang et al. 2007). These disservices come at a significant cost to humans, but there is often a mismatch between the benefits, which accrue to the agricultural sector, and the costs, which are typi...

Photo by Nick Hogarth/CIFOR

by Himlal Baral, Peter Holmgren, Himlal Baral, Peter Holmgren, Tianlin China
"... for landscape investments ..."
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for landscape investments

WATER-RELATED ECOSYSTEM SERVICES AND WATER QUALITY: FARMERS ’ PERCEPTIONS AND PRACTICES

by Aiswarya Baskaran , 2014
"... by ..."
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...arming and ecosystems are not always positive,showever: farmers incur costs from the functioning of certain ecosystems and agriculturescan negatively impact ecosystem function and the delivery of ES (=-=Dale & Polasky, 2007-=-;sZhang et al., 2007). Habitat loss and non-point source pollution are major disservicessfrom agriculture to surrounding ecosystems. Competition from natural ecosystemssincluding weed and pest damage ...

Productivity Stability Adaptability Equity

by A. Bernués A , 2011
"... An integrated sustainability assessment of mediterranean sheep farms with different degrees of intensification ..."
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An integrated sustainability assessment of mediterranean sheep farms with different degrees of intensification
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...rvices provided by farming systems, such as conservation of biodiversity or maintenance of cultural landscapes (Piorr, 2003), are difficult to measure due to the temporal and spatial scales involved (=-=Dale and Polasky, 2007-=-). For this reason, and despite their importance, these services tend to be ignored in sustainability analyses. Significant research efforts deserve to be allocated to studying which environmental ind...

An approach to assess the potential of agroecosystems in providing environmental services

by Ana Paula Dias Turetta , Rafael Tonucci , Luciano Mansor De Mattos , George Amaro , Fabiano De Carvalho Balieiro , Rachel Bardy Prado , Henrique Antunes De Souza , Aline Pacobahyba De Oliveira , 2016
"... Abstract -The objective of this work was to present an approach to evaluate soil functions in agroecosystems and their impact on environmental services (ES). An approach with case studies was proposed to assess the relationship between the establishment and management of agroecosystems, in three Br ..."
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Abstract -The objective of this work was to present an approach to evaluate soil functions in agroecosystems and their impact on environmental services (ES). An approach with case studies was proposed to assess the relationship between the establishment and management of agroecosystems, in three Brazilian biomes (Atlantic Forest, Cerrado, and Caatinga), and their environmental services provision, considering the specificities of each area. A set of soil parameters that can be used as indicators to monitor changes in the agroecosystem was also proposed. The environmental services types most affected by the establishment and management of the agroecosystems were the supporting and provisioning services, showing the potential of agricultural management in providing multiple services, besides food, fiber, and energy. "No fire use" and "agricultural consortium" were the criteria for the establishment and management of agroecosystems with greater potential to increase environmental services provision, whereas biomass stock in soil and litter was the most appropriate soil parameter to be used as an indicator to monitor the impact of agroecosystems in environmental services provision. Index terms: environmental services indicators, multifunctional agriculture, public policies, soil management, sustainable agriculture. Uma abordagem para avaliar o potencial de agroecossistemas em prover serviços ambientais Resumo -O objetivo deste trabalho foi apresentar uma abordagem para avaliar as funções do solo em agroecossistemas e seus impactos sobre os serviços ambientais (SA). Uma abordagem com estudo de casos foi proposta para analisar a relação entre o estabelecimento e o manejo de agroecossistemas, em três biomas brasileiros (Floresta Atlântica, Cerrado e Caatinga), e a sua correlação com a prestação de serviços ambientais, tendo-se levado em consideração as especificidades de cada área. Também foi proposto um conjunto de parâmetros do solo que possam ser utilizados como indicadores para monitorar as alterações no agroecossistema. Observou-se que os tipos de serviços ambientais mais afetados pela implantação e pela gestão dos agroecossistemas são os de suporte e provisão, o que mostra o potencial que o manejo agrícola tem de fornecer múltiplos serviços, além de alimentos, fibras e energia. "Sem uso de fogo" e "consórcios agrícolas" foram os critérios usados na implantação e a gestão de agroecossistemas com maior potencial em aumentar a prestação de serviços ambientais, enquanto o estoque de biomassa no solo e na serapilheira foi o parâmetro do solo mais adequado para uso como indicador no monitoramento do impacto do agroecossistema na prestação de serviços ambientais. Termos para indexação: indicadores de serviços ambientais, agricultura multifuncional, políticas públicas, manejo do solo, agricultura sustentável.

Ecological Footprint Applied in Agro-Ecosystems: Methods and Case Studies

by Alessandro K Cerutti , Gabriele L Beccaro , Marco Bagliani , Simone Contu , Dario Donno , Giancarlo Bounous
"... ..."
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tradeoffs and synergies

by Alison G. Power
"... Ecosystem services and agriculture: ..."
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Ecosystem services and agriculture:
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... diminish other ecosystem services as well. Protection of groundwater and surface water quality can be threatened by intensification because of increased nutrients, agrochemicals and dissolved salts (=-=Dale & Polasky 2007-=-). Loss of riparian vegetation that often accompanies intensification can result in significant sedimentation of waterways and dams. Other studies, however, have suggested that initial conversion to a...

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