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51.
Forest ecosystems deliver valuable services to humanity. However, many forests are being degraded and their services have been undervalued. The main problem lies in the inadequate institutional arrangements for forest governance. This paper aims to assess the effects of alternative forest governance arrangements on the provision and economic values of forest ecosystem services (FES) in Vietnam. The study presents a framework for mapping land use and land cover (LULC) change stemming from actual and hypothetical changes in forest governance regimes, quantifies the resulting changes in the provision of FES, and estimates the associated economic values. In the context of the study site in the North Western uplands of Vietnam, we test three alternative forest governance scenarios: business as usual, with a dominant government role; a community-based governance regime; and a private, individual-based forestry governance regime. Scenarios are based quite closely on the way these regimes are (or might be expected to be) implemented in Vietnam. For each forest governance scenario, we map LULC changes based on land suitability analysis and transition likelihood for the period 2010 − 2020. The resulting maps are used as inputs into the InVEST (Integrated Valuation of Environmental Services and Tradeoffs) model, which is used to estimate the quantity of three specific FES: carbon storage/sequestration, sediment yield, and water yield. We apply economic valuation methods to value these services: the social cost of carbon is used to estimate the economic values of carbon storage/sequestration; the cost of removing sediment deposited in reservoirs is applied for valuing the reduction of sediment yield, and the residual value of water supply for hydropower generation is used for valuing water yield. The results show that forest governance regimes have a significant effect not only on forest LULC, but also on the quantity and values of FES derived from forests. The FES are differentially affected by alternative forest governance regimes: some FES increase in quantity and value under some governance regimes and decrease under others. Of the three forest governance regimes examined, there is no one regime that will always be ‘better’ than the others in terms of provisioning all considered FES. For the specific context of Vietnam, we find that the private forest governance scenario is inferior to the community-based governance scenario, as an alternative to the current state-based governance. Because our results pertain to the scenarios as constructed, rather than generally to broad categories of governance regimes, there remains the possibility that regimes can be constructed that outperform all of those examined here. 相似文献
53.
Creative hotspots have become a key driver for urban policies to stimulate social, cultural, environmental and organisational growth of creative and knowledge-based clusters, districts and hubs. However, their functional and spatial characteristics vary due to their different evolving structure as new spaces of economic activity in different contexts. This article points to a consideration of new foci for both land use and urban economic policy through a mapping of formal and informal creative hotspots in Brisbane, Australia. The study found two distinctive development patterns: (a) earlier top-down approaches as instigated by national and international innovation policies, and; (b) recently emerging bottom-up spaces for creativity, knowledge and innovation practices. This study examines how formal creative strategies and emerging informal creative spaces shape cities and urban policies. The methodology comprises online data collection and a review of creative and knowledge strategies and implementation policies. Data was then analysed via multiple mapping techniques illustrating the spatial distribution of creative hotspots, formal and informal formations, scale and land use characteristics. The research findings consolidate our understanding of Brisbane’s creative ecosystem and suggest new urban policy mechanisms to better foster the interrelationship between top-down and bottom-up approaches in cities, that is, between formally planned and large-scale interventions and small-scale organic and informal creative activities. 相似文献
54.
Payment for ecosystem services schemes (PES) are lauded as a market-based solution to curtail deforestation and restore degraded ecosystems. However, PES programs often fail to conserve sites under strong long-term deforestation pressures. Underperformance, in part, is likely due to adverse selection. Spatial adverse selection occurs when landowners are more likely to enroll parcels with low deforestation pressure than parcels with high deforestation pressure. Temporal adverse selection arises when parcels are enrolled for short time periods. In both cases, financial resources are allocated without having a sizeable impact on long-term land use change. Improving program performance to overcome these shortcomings requires understanding attributes of landowners and their parcels across large scales to identify spatial and temporal enrollment patterns that drive adverse selection. In this paper, we examine these patterns in Argentina’s PES program in Chaco forest, a global deforestation hotspot. Our study area covers 252,319 km2. Results from multinomial logistic regression models showed that large parcels of enrolled land and parcels owned by absentee landowners exhibit greater evidence of spatiotemporal adverse selection than smaller parcels or parcels owned by local landowners. Furthermore, parcels managed under land use plans for conservation and restoration are more likely to be associated with adverse selection than parcels managed for financial returns such as harvest of non-timber forest products, silviculture, and silvopasture. However, prior to recommending that PES programs focus on land uses with higher potential earnings, a greater understanding is needed of the degree to which these land uses meet ecological and biodiversity goals of PES programs. We suggest that increased spatial targeting of enrollment, along with enrollment of local landowners and further incentives for land uses that support conservation and restoration, could promote long-term conservation of forest lands. 相似文献
55.
政府角色如何定位对旅游地能否实现可持续发展具有重要影响。文章以阳朔遇龙河景区为例,探讨其旅游地发展历程中政府角色定位的演变,解读不同阶段治理失灵的原因。研究发现:在旅游探查期,社区自主发展,政府基本缺位;在旅游参与期,政府以“规划者”角色介入,并主导运营管理,治理角色不中立,导致治理权威受损;在旅游大发展前期,政府治理目标部分错位加上在资源欠缺、政策准备不充分的情况下急于强制干预,最终导致治理失灵;在旅游大发展期,政府的治理能力和治理资源跟不上旅游规模的扩张,缺乏长效监管机制,难以实现有效治理。 相似文献
56.
Recent advances in science mapping allowed to analyze the entire intellectual structure of blockchain and cryptocurrencies in business-related disciplines to identify 174 academic articles as well as 1482 practitioner-oriented articles published since the inception of cryptocurrencies in 2008 to highlight key trends of the published outputs. The results demonstrate academic research done by 389 authors in 296 organizations based in 50 countries that only just initiated the conversation on four major streams of the literature—Bitcoin and cryptocurrencies; blockchain adoption; cryptocurrency and blockchain environment; and business model innovations. When comparing academic scholarship to practitioner-oriented literature, the results demonstrate that practitioners discussed investor-related themes, cryptocurrency intrinsic value, political-economic sphere, and the impact of cryptocurrency and blockchain technologies on the wider society in greater detail. As a result, a number of themes are identified and discussed that could align academic and practitioner interests and provide guidance for further research in this important field. 相似文献
57.
There seems to be widespread consensus in the ecosystem services literature that benefits from ecosystems are not produced by ecosystems independently of humans, but arise because of people’s interactions with an ecosystem. Yet, these interactions are hardly ever explicitly investigated in a way that directly contributes to the ecosystem services debate. Here, we empirically examine the role of humans in the generation of ecosystem services, and the factors that might help us to understand diversity in these processes.We analyzed 47 qualitative interviews with people using a mixed woodland–farmland–upland ecosystem in Fife, Scotland, for a variety of activities. Interviewees mentioned a wide range of ecosystem services, especially provisioning and cultural services, which were closely connected to human activities in the place. We term the interactions between people and place that lead to ecosystem services here ‘co-production’, and distinguish between: (a) the co-production of ecosystem structures; (b) the co-production of the services proper and (c) the attribution, i.e., construction, of meaning to these structures and services. All three processes could be carried out by individuals or jointly, by groups of people, and the social nature of the interaction often added meaning and value to the co-production process. Two sets of factors, clustered under the headings of ‘identities’ and ‘capabilities’, shaped these interactions, and helped us to understand variation in people’s engagement with the ecosystem as well as their views on ecosystem disservices.While further research is needed to explore the usefulness of our analytical framework in other contexts, our findings suggest that identities and capabilities of people have to be considered much more strongly than is currently the case in standard ecosystem services assessments, as these influence which ecosystem structures are eventually turned into benefits, and give important insights into the environmental justice related to the distribution of ecosystem benefits. 相似文献
58.
本文阐述了金沙江中游水电站建设中水土保持工作的重要性,分析了该区域电站水土保持工作中存在的问题,提出了解决问题的对策措施。 相似文献
59.
《Futures》2015
Tourism, as all human activities, is dependent on the natural environment and its respective ecosystem services (ES). Different user groups manage and consume these touristic ES differently, resulting in discrepancies and potential conflicts. Despite the urgency to find inclusive local approaches for sustainable development, tourism studies still analyze socio-economic and ecological impacts separately and lack integrated social–ecological approaches to improve foresight in tourism planning. Based on a growing concern regarding the future of Costalegre on the Jalisco coast of Western Mexico, we analyze through interviews, surveys, and participant observation the dependence of tourism on specific ecosystem services and conduct a scenario analysis which shows present and future implications for the social–ecological system. Furthermore, this analysis shows in detail how different scenarios change ES provision and people's livelihoods. Key findings include identifying freshwater provision and cultural ES as the most important touristic ES. At a regional scale, peasants in ejidos are the main ES stewards, whereas high-class tourism facilities constitute important local stewards. Benefits, mainly access to freshwater and the beach, are unequally distributed, provoking conflicts among different ES user groups that may escalate in the near future. Improved communication between all user groups and strengthening of key political actors seem to be the most immediate recommendations to ensure the long term sustainability of this particular region. This work may contribute to improved planning and decision-making as our ES based scenarios are a first step to integrate social–ecological knowledge into improved decision-making. At a local scale, the study reveals the most likely future development options and their social and ecological consequences. It could also serve as a baseline for informed policy making. 相似文献
60.
珠江三角洲的产业集群表现为专业镇的形态,其治理主体为当地镇政府。面对不断增长的挑战。需要培育和发展新的治理主体,这包括核心大企业和行业协会.根据分工网络的特征和产业集群的成因,珠江三角洲的产业集群可以分为四种类型,它们有不同的核心企业,也有不同的升级路径。行业协会在推进行业协调与治理及为企业提供多方面服务方面可以发挥重要作用,行业协会功能的发挥仍需一个培育过程。 相似文献