有备无患：后续疫情中新冠焦虑对武汉员工防护和工作的影响研究

国内局部疫情陆续暴发,关注已有疫情经历的员工防护和工作行为对疫情防控有一定意义。基于资源保存理论,文章假设新冠焦虑对武汉员工防护行为和工作结果有显著影响,且对防护行为影响大于对工作结果的影响。在2021年初国内局部疫情期间,对52名武汉员工连续5天的调查发现,每日新冠焦虑通过每日新冠耗竭显著提升武汉员工新冠防护行为,但武汉员工每日工作产出不受疫情影响,包括工作绩效、创新绩效、工作导向和人际导向的帮助行为。文章揭示了有2020年新冠肺炎疫情直接经验的武汉员工对待后续疫情防护的谨慎态度,以及在工作结果方面对后续疫情的“抗干扰性”。结合当前情况,讨论了研究结果对疫情防控和经济恢复的实践意义。     

Fiscal transfers for biodiversity conservation: The Portuguese Local Finances Law

Biodiversity loss is a serious and ongoing global environmental problem. Economic instruments in biodiversity policies can contribute towards reconciling the conservation costs encountered at local level with the benefits of biodiversity conservation at higher levels of governance, from regional and national levels up to the global level. This paper outlines the theoretical foundations of fiscal transfers in conservation policies and also offers a concise account of existing international experience and future prospects. The recently amended Portuguese Local Finances Law (LFL) of 2007, with its groundbreaking new article on the promotion of local sustainability, is analysed in terms of the significance of fiscal transfers for municipal budgets. It is compared with its predecessor law, highlighting changes in fiscal revenues for selected municipalities in the country in relation to their designated conservation areas. The analysis shows that these ecological fiscal transfers can be significant for those municipalities with a large proportion of land under protected status. However, because it also introduces a considerable number of changes to the Portuguese fiscal transfer scheme, the ecological impact of the new LFL is difficult to grasp due to the presence of several crossover effects. The results obtained offer significant insights both for improving the Portuguese LFL and for designing new ecological fiscal transfer schemes.     

Land Tenure and the Adoption of Conservation Practices

We use a logit adoption model with data on 941 U.S. corn producers from the 1996 Agricultural Resource Management Study to analyze the influence of land tenure on the adoption of conservation practices. We extend previous analyses by distinguishing renters according to lease type and by distinguishing practices according to the timing of costs and returns. We find that cash-renters are less likely than owner-operators to use conservation tillage, but share-renters are not. Both cash-renters and share-renters are less likely than owner-operators to adopt practices that provide benefits only over the longer term (grassed waterways, stripcropping, and contour farming).     

How well do conservation auctions perform in achieving landscape‐level outcomes? A comparison of auction formats and bid selection criteria

This paper studies the performance of auction design features regarding pricing mechanisms and bid selection criteria for securing wildlife zones across different holdings. We compare two pricing mechanisms: a discriminatory‐price auction and a uniform‐price ascending auction, and four bid selection criteria on the basis of: total bid, bid‐per‐value ratio, bid‐per‐area ratio and a mixed criterion where bids are formed on the basis of cost but they are selected based on the bid‐per‐value ratio. We develop a best‐response group‐bidding model for a discriminatory‐price auction where bidders form optimal group bids for individual wildlife zones. In the uniform‐price ascending auction, individual landholders respond to prices, which are successively raised by the auctioneer and whenever all the landholders from a single zone agree to participate (i.e. the first zone is formed), the auction stops. Based on numerical simulations using a bio‐economic model of malleefowl conservation, we observe that the discriminatory‐price auction is more cost‐effective than the uniform‐price ascending auction. However, the budgetary cost‐effectiveness of a discriminatory‐price auction is sensitive to bidder uncertainty about the number of competing bidder groups and the highest cost of establishing a wildlife zone among these groups. In terms of bid selection, the mixed bid selection criterion performs best. We discuss the policy implications of these findings.     

An African success: the case of conservation agriculture in Zimbabwe

This paper highlights the limiting factors of agricultural production in Zimbabwe and presents conservation agriculture (CA) as a potential solution to address many of these challenges. CA, based on the three principles of minimum soil disturbance, crop residue retention and crop rotations, targets low soil fertility, moisture deficits and low management standards through the use of soil-fertility-enhancing technologies (precision fertilizer application, crop rotations, sequencing and interactions), improved moisture use efficiency and higher standards of agronomic management practices. The paper also explains the role of CA in natural resource conservation as increasing productivity will reduce the land under crop production and increase the area under natural vegetation. Trends in the development of CA in the past five years and its current status in the country are explained, with the roles of different stakeholders outlined. Evidence on the impact of CA on both food security and the environment is presented. In conclusion, the paper looks at the various factors that may affect the spread of CA to different agro-ecological zones in the country.     

国土空间生态保护和修复研究路径：科学到决策

研究目的：探索走向可持续生态系统综合管理的国土空间生态保护和修复的研究路径与应用实践。研究方法：综合分析法,案例分析法等。研究结果：（1）以生态系统管理等理论为支撑,基于国土空间生态安全格局整体保护理念,关注中观—宏观尺度的国土空间生态保护和修复关键区域识别与诊断,从生态系统和社会系统维度提出国土空间生态保护和修复科学认知、价值重塑与政策引导的研究路径,构建 “本底调查测度—多维认知—科学识别—价值重塑—规划调控—政策引导—技术支撑”从科学到决策的国土空间生态保护和修复研究路径;（2）以山东省烟台市为例,围绕重焕蓝色海洋、连通生态廊道、牢筑生态屏障、优化生态格局和彰显绿色宜居策略,探索国土空间生态保护和修复应用实践。研究结论：生态文明背景下国土空间生态保护和修复走向可持续生态系统综合管理成为必然,所提出的研究路径和应用实践为国土空间生态保护和修复研究提供了新的思路与方法。     

我国农业野生植物资源原生境保护区建设现状、问题及未来的思考

我国农业野生植物原生境面临着环境污染、人类农业生产、经济社会发展以及各类违法活动的侵蚀和破坏,建立原生境保护区是保护农业野生植物资源的重要途径之一。基于对当前威胁我国农业野生植物原生境面临的四大因素(自然灾害、农业活动、经济发展、违法活动)的系统梳理的基础上,探讨了现有农业野生植物原生境保护区建设的法规政策体系以及保护区建设现状和存在的主要问题,在此基础上提出了加强保护区建设的几点建议。分析结果表明,当前我国农业野生植物保护区建设存在的主要问题包括:保护区土地权属界定、保护区建设内容限定过窄、忽视保护区管理机构能力建设、对保护区周边农民权益保护不够。为了提高保护区建设工作,文章建议相关部门应该重视以下几个问题:统筹协调行业部门之间的权属差异,重视农业野生植物异位保存工作,修订完善保护区建设技术规范,兼顾保护区民众利益。     

居民用电对城市节能目标的影响及对策——以上海市为例

居民电能消费量,是城市生活质量的重要标志,随着经济发展和收入增长,城市居民的电能消费呈大幅度增长的势态,占城市能源消耗总量的比率不断提升。然而这种增长趋势却大大抵消了为节能降耗所采取各种措施的效果,不利于城市节能降耗目标的实现。本文定量分析居民用电对城市节能目标的影响程度,并提出减弱和消除其不利影响的可行措施。     

我国物流业节能降耗统计分析:现状与展望

当前,经济增长与自然资源短缺、能源耗竭、生态环境恶化的矛盾突显,如何提升能源利用效率、缓解能源压力日益成为研究的焦点。物流业在加速我国经济增长、促进产业结构调整、降低制造业成本的同时,能源消费增长迅速。本文通过对我国物流业能源消费及其影响因素的关联分析,得出物流业能源效率提升的几点建议。     

对青海“生态立省”发展战略的思考

青海生态立省战略的实施是保护与建设高原生态系统的重要举措,不仅关系到高原的经济社会可持续发展,更关系到全国的生态安全。通过对生态立省内涵的认识,提出了生态立法、生态保护、生态建设、生态经济和生态文化具体做法和建议。