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1.
We explore the evolutionary nature of interactions between government policy, farm decision-making and ecosystem services in Shucheng County, Anhui Province, 1950–2015. Analyses of ecological, social and economic trends are complemented by interviews with local farmers. Since the Household Responsibility System started in 1980, there has been a trade-off between rising levels of provisioning services and falling levels of regulating services with evidence that critical thresholds have been passed for water quality. Using a Framework for Ecosystem Service Provision, we argue that farmers have acted only as ecosystem service providers and have not influenced the policies that have brought about the trade-offs. Over the period, ecological degradation is best described as an example of ‘creeping normalcy’ where cumulative conventional actions by individual farmers produce unsustainable losses in regulating services. The Chinese government should act to balance the various ecosystem services through valuation and national policy. In this respect, there is a need for agencies that can provide place-based advice to farmers that will allow them to maintain productivity levels while pursuing restorative actions. Even with new policies, the draw of urban employment, high production costs and an ageing population threaten the viability of farming in these marginal agricultural areas.  相似文献   

2.
The main objective of the European Water Framework Directive (WFD) is the achievement of a good ecological and chemical status of the water environment (water bodies). This status corresponds to the limit value of Germany's Working Group of the Federal States on Water Problems Issues (LAWA) for water quality class II (3 mg/l total nitrogen). The rivers in the intensively cropped Upper Ems River basin (northwestern Germany) show total nitrogen concentrations in excess of 5–10 mg/l. Hence, the objective of our study was to find a land use and land management scenario that would reduce the total nitrogen concentration to meet the WFD requirements for good ecological and chemical status. We developed consecutive land use and management scenarios on the basis of policy instruments such as the support of agro-environmental measures by Common Agricultural Policy and regional landscape development programs. The model simulations were done by using the Soil and Water Assessment Tool (SWAT). Results of SWAT scenario calculations showed that drastic measures, which are unrealistic from a socio-economic point of view, would be needed to achieve the water quality target in the basin (reduction of arable land from 77.2% to 46% [13% organic farming], increase of pasture from 4% to 15%, afforestation from 10% to 21%, increase of protected wetlands from 0% to 9%, etc.). The example shows additionally that the achievement of the WFD targets is only possible with a consideration of regional landscape and land use distinctions. A related problem yet to be addressed is the general lack of measured water quality data with which to calibrate and validate water quality models such as SWAT. This adds considerable uncertainty to already complicated and uncertainty situations. Thus, improved strategies for water quality monitoring, and data accessibility must be established.  相似文献   

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4.
This study investigates the impact of different soil and water conservation (SWC) technologies on the variance of crop production in Ethiopia to determine the risk implications of the different technologies in different regions and rainfall zones. Given the production risks posed by climate change, such information can be used by decision makers to identify appropriate agricultural practices that act as a buffer against climate change. Results show that SWC investments perform differently in different rainfall areas and regions of Ethiopia and that the effectiveness of technologies such as irrigation, fertilizer, and improved seeds often depends on whether these investments are coupled with SWC measures. These results underscore the importance of the selection of appropriate combinations of technologies and careful geographical targeting when promoting and scaling up SWC technologies for adaptation to climate change.  相似文献   

5.
We state that land use is under constant pressure, no matter if land-use changes take place in growing or shrinking cities. Land-use changes witness multiple interdependencies between environmental, social and economic factors. In urban areas land is highly exposed to accelerating consumption which makes it a scarce and precious resource. Therefore we need transformative processes to deal with land use in a more sensible and responsible way. We define urban transformations as fundamental, multi-dimensional changes in urban land-use patterns, population developments, infrastructures, governance regimes as well as established values, norms and behaviours. A central focus is on land use and its changes to supply ecosystem services as key driver for quality of life. Most important for us is that transformative processes are highly dynamic and non-linear, thus affecting functions of urban land uses in different ways and with varying consequences. In this sense, governance research is a decisive component to implement our research in practice. With this viewpoint we want to contribute to a debate on land-use changes in alternating growing and shrinking cities to foster appropriate development responses for urban transformations towards sustainability.  相似文献   

6.
Land consolidation has a long history, and it has currently become one of the most extensive and well-organized human activities in China. Agricultural land consolidation (ALC) will change land use patterns, vegetation coverage, as well as the physical and chemical properties of soil through a series of engineering and biological measures that in turn affect the soil conservation service of ecosystems. This paper analyzes the effects of ALC on soil conservation service in the Hilly Region of Southeast China based on the Revised Universal Soil Loss Equation (RUSLE). The main results were as follows: (1) ALC improved the soil conservation service of cultivated land; (2) variations in the soil conservation service were strongly related to rainfall, slope, area of newly converted cultivated land, earth volume of land leveling, earth volume of topsoil stripping and backfilling, reconstructed farm roads, newly built production roads, length of new irrigation systems, newly built drainage systems, number of new dams, and newly built revetments; (3) the newly established multiple regression models used in this paper could describe the relationship between the soil conservation service and significant impact factors. This study will help researchers to better understand the interactions between land management and ecosystem service provisioning as well as provide a scientific basis for policymakers as they put forward new land management policies.  相似文献   

7.
Defining and achieving sustainability in the context of complex, multi-scale, and constantly changing agricultural systems is a challenge for research and policy. In UK agriculture, the European Union and its Common Agricultural Policy has been a key source of funding for and approaches to sustainability in the agriculture and rural development sectors. The decision to leave the European Union represents a significant moment in UK agriculture and rural development policy, and both an opportunity and responsibility for the UK government to set out and commit towards achieving sustainability goals for the sector. In this study, a combination of ethnographic case study research, focusing on the case of upland farmers in the Yorkshire Dales, policy analysis and national agricultural sector data is referred to in describing experiences of agricultural policy reform over recent decades. From these experiences, lessons for the design and delivery of future agriculture and rural development are drawn out. It is argued that the integrated assessment of multiple sources of knowledge can provide a means to critically reflecting on evidence about sustainability in complex systems, better understanding trade-offs, and creating a more complete and inclusive knowledge base from which to define sustainable agriculture.  相似文献   

8.
Over the past centuries, land systems in Italy experienced fundamental shifts, owing to the availability of new energy forms, population surges, and technological progress. The 20th century was characterized by massive productivity increases, accompanied by gradual land abandonment and the return of forest land. We here analyze 120 years of land system change in Italy, applying the human appropriation of net primary production (HANPP) framework, a metric for socio-economic pressures on terrestrial ecosystems. HANPP allows integrating ecological with societal perspectives, by systematically quantifying (a) biomass harvest and (b) the difference between potential productivity of ecosystems and current productivity induced by land use processes, such as land conversion, or land degradation. Besides assessing national trends we calculated HANPP separately for the Italian North and South between 1934 and 2007, in order to scrutinize if high regional discrepancies in terms of natural and socio-economic preconditions translate into diverging land system trajectories. Our results show that national HANPP has been declining from 78% of natural productivity before WWII to 56% in 2007, indicating a declining land -use induced pressure on biomass flows over time. Simultaneously, biomass harvest increased by around 26% due to agricultural intensification, despite shrinking croplands. Although we found a significant difference between the Northern and Southern region in the absolute levels of several land use indicators related to biomass appropriation, the overarching trends of land system change were remarkably similar in both regions. This suggests that underlying drivers of land system change, such as policies aimed at land-use intensification and structural change were equally dominating land system trajectories in the North and South of Italy, not withstanding their socio-ecological divergences.  相似文献   

9.
Household surveys, a pivotal component of every country's national statistical system, continue to be criticized and praised in equal manner. While recognizing their limitations, it is clear that certain types of data must continue to be collected through household surveys, preferably in an integrated manner with other data sources. This is particularly true in the agricultural space for which household and farm surveys will be critical both to collect primary data as well as to validate alternative data sources. Recent methodological gains and technological innovations offer a unique opportunity to address many of the shortcomings of agricultural data. In this article, we briefly describe select examples of such methodological and technological changes, drawing from the Living Standards Measurement Study‐Integrated Surveys on Agriculture, a survey program aimed at improving the availability, quality, and relevance of agricultural data in multitopic, multipurpose household surveys.  相似文献   

10.
Most industrial countries have experienced a transformation of land use: from decreasing to expanding forest areas, the so-called forest transition. Outside closed forests, European rural landscapes exhibit a diversity of tree-based agricultural systems, but the question of whether this forest transition has also affected ‘trees outside forests’ has rarely been studied. The aim of this study is to analyze the spatial-temporal dynamics of farm trees and woodlands in an agricultural landscape in Eastern Germany from 1964 to 2008, based on aerial photographs and digital orthophotos. Taking a landscape ecological perspective, we quantify farm tree dynamics, disentangle processes of gain and loss in the socialist and post-socialist periods of Eastern Germany, and assess differences in ecosystem services provided by farm trees. A substantial increase of overall tree cover by 24.8% was observed for the selected time period, but trajectories have been disparate across different farm tree classes. The increase in tree cover was stronger in steep valleys than on hills and plateaus, indicating a significant interdependence between topography and trajectories of change. Patch numbers of farm trees did not increase, which suggests that the expansion of tree cover is mostly due to a spatial expansion of previously existing tree patches. Overall net gains in tree cover were rather similar during the socialist and post-socialist eras. The general increase in tree cover was accompanied by increase in agriculture-related ecosystem service provision, but the increase in pollination and pest control services was much lower than that in water purification services. These findings present the first empirical evidence from an industrialized country that there is also an ongoing ‘forest transition’ outside closed forests. Potential, partially counteracting drivers of change during the socialist and post-socialist periods have mainly been related to farm policies and the environmental consciousness of land users and society as a whole.  相似文献   

11.
The Swedish forest commons can be regarded as self-organized community groups which jointly manage a forest resource. However, previous studies point out the diminishing role and engagement of shareholders in terms of governance, thereby challenging some vital design principles of robust common-pool resource institutions. We assume that major reasons for this is associated with socio-demographic changes meaning a large proportion of shareholders do not live in the area. Therefore this study compares resident and non-resident shareholder participation in and perceptions about their common, as well as assesses their engagement in the management of one major forest common in Northern Sweden. To this end a questionnaire survey was conducted together with regular consultations with the common's board and staff to discuss shareholder participation and other major issues concerning the common.The study shows that the common has a low shareholder engagement and a high proportion of non-resident shareholders. Even though a large proportion of resident shareholders acknowledged benefits from the common, they were also less satisfied with the cooperation among shareholders and less optimistic about the possibilities to influence management decisions. In contrast, the majority of non-resident shareholders saw ‘no disadvantages’ of the common. Although most of the shareholders regularly visit the common, hardly any participate in the general meetings. While residency outside the municipality certainly seems to have an impact on the engagement of non-resident shareholders, our study suggests that simple strategies from the board including accessible information and better timing and/or location of meetings might even increase the participation among all shareholders.  相似文献   

12.
This study explains the difficulties with the enlargement of the Białowieża National Park in Poland through an ecosystem services perspective. We carried out a questionnaire survey among the local communities to investigate local use of ecosystem services and respondents’ attitude towards the national park enlargement. The results indicate that local people are not as dependent on forest resources as often claimed. Firewood proved a crucial resource as the vast majority of the respondents depended on it for heating their houses. We also found that the local population has a rather low awareness of the national park territory and rules involved. The results suggest that previous enlargement attempts might have failed because decision makers did not adequately consider resources the local people depend on. Lack of clear information and transparent decision-making also amplified the conflict. Future enlargement initiatives should provide clear rules concerning the local use of ecosystem services and the access to firewood in particular. Furthermore, new policies should be developed in cooperation with local people and accompanied by an appropriate information campaign. It is argued that the ecosystem services perspective provides important data which can inform more effective conservation policy-making.  相似文献   

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14.
Agricultural development efforts that do not address persistent gender gaps miss opportunities for greater impact. This synthesis reflects on key findings from integrated quantitative and qualitative analyses at the nexus of gender, agricultural development, and climate change. Linked farm household-, intrahousehold-, community-, and institutional-level data highlight significant and nuanced gender differences in adaptive capacity of individuals and communities to respond to climate change. The gender gap is also substantial in exposure to climate change and its impacts, and uptake of new practices that lower vulnerability. Women in agriculture will remain largely neglected by information and service providers unless their differing needs, access to, and control over resources are considered at policy and project design stage. Yet clear guidelines for addressing the needs of both men and women in different environments and agricultural systems are still lacking. Participatory ‘action research’ approaches with a focus on co-learning, and using innovative cell phone or social media-based approaches offer exciting new opportunities. Agricultural development decision-makers and project designers need to ‘design with gender in mind’. Equipping them with tools and knowledge of innovative gender-transformative practices and intervention options and creating accountability for serving women and men will be key.  相似文献   

15.
Grassland conversion to row-crop production in the north central United States has been a growing threat to socio-economic and environmental sustainability for producers, conservationists, and policy-makers alike. We used a system dynamics model of the region to forecast agriculturally driven land transformation through mid-twenty-first century. The base-case scenario projection showed that farmland area continued to increase, from under 200,000?km2 to over 230,000?km2. Unmitigated, the soil environmental risk (SER) of such changes reached conservative estimates of Dust Bowl-era externalities. Systems analyses show that reducing livestock production costs, doubling conservation compliance requirements, and livestock–cropping integration had the largest impact on grassland conservation and mitigating SER. The largest SER effects came from eliminating conservation incentives or raising cultivation incentives, despite improvements in reduced tillage and enhanced agronomy. Several system archetypes were identified within the policy scenarios: ‘fixes that backfire’ and ‘success-to-the-successful’. For scenarios creating favourable impacts, time delays caused some behaviours to worsen before positive gains were realized. If implemented, patience and persistence to ensure that these scenarios reach their full potential will be necessary. Our scenarios provide quantitative forecasts around measures for sustainable intensification. These projections can aid regional stakeholders in enhancing discussions currently taking place about sustainable agriculture in the region.  相似文献   

16.
In September 2012, the Niger Delta (Nigeria) experienced a severe flood. By conducting a differences-in-differences estimation (as well as qualitative interviews), this paper studies the effects of the flood and of relief aid provided by an oil company on relational capability, a concept which covers bonding, bridging, and linking aspects of social capital (SC). We find that the flood increased bonding SC, measured as trust in the community, but reduced bridging SC, measured as participation together with unknown people in common-interest projects. The aid distributed to some people, on the other hand, was associated with higher bridging SC. The aid was not distributed according to flood damages but mostly according to social status. Our findings emphasize how a disaster can affect the repartition of bonding and bridging SC in the short term. They also highlight the need to build social cohesion in vulnerable communities from a longer-term and institutional perspective.  相似文献   

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