秦岭北坡森林旅游产业发展的SWOT分析

运用SWOT分析法对秦岭北坡森林公园的开发现状进行了优势、劣势、机遇和威胁分析,进一步认识到秦岭北坡森林公园发展的优势和不足,在此基础上提出了相关对策,以期使其走上可持续发展之路。     

农业上市公司的经营自由现金流量分析

农业上市公司是我国农业产业化的重要形式，其经营状况的好坏直接关系到农业产业化的进程。而自由现金流量是反映公司经营状况的重要指标之一。为此，选取部分农业上市公司作为研究对象，运用自由现金流量模型对农业上市公司的经营自由现金流量的相关指标进行了计量与分析，发现农业上市公司的整体经营状况不容乐观。进一步的研究发现，多数公司的赢利能力下降而不合理投资居高不下，成为影响自由现金流量的主要因素；进而对农业上市公司的经营、投资和融资提出了相关建议。     

财政支持新农村建设的理论思考

加快农业发展是新农村建设的核心工程,也是财政支持新农村建设的首要目标。公共财政作为政府履行职能的重要工具和资源配置的重要手段,在社会主义新农村建设中肩负着重要职责。在确定财政支持新农村建设的原则基础上,探讨了推进社会主义新农村建设的财政政策,进而提出了相关的政策建议。     

双峰山国家森林公园植被恢复过程中的种子库研究

对湖北双峰山国家森林公园不同类型植物群落土壤种子库的植物种类、密度及优势成分进行了研究,并结合群落植物种类,分析了该森林公园植被在生态恢复中的进程。结果表明,种子库中有植物30种,分属19科,其中绝大多数为草本植物;种子库储量为100～400粒/m2,其中上层土壤(0～5cm)种子数量占种子库总数的58.2%,种子库主要物种为莎草、淡竹叶、苎麻、绊根草、马唐等,地面植物与种子库植物的相似度不高,这表明双峰山国家森林公园植被正处于生态恢复的初级阶段。     

铜铃山国家森林公园风景资源保护与开发

浙江省铜铃山国家森林公园以茂林深谷、急瀑碧潭和秀湖怪穴为特色。在风景资源保护与开发建设过程中,依照公园地形地貌与风景资源特点,在园路建设中巧妙地设置了木栈道、汀步、木船、电瓶车道,对废弃水电站、引水渠和林区山路进行了合理改造与利用,结合林相改造,营建了生物防火道和特色风景林。实践表明,有效利用原有一切可利用的资源和设施,降低人为破坏和避免重复建设,是森林公园保护性开发的一项重要举措。参10     

Factors associated with Echinococcus multilocularis infection in coyotes in southern Ontario

Echinococcus multilocularis was recently reported in wild canids across southern Ontario, a newly recognized endemic area in Canada. In such areas, a comprehensive understanding of factors associated with infection in definitive hosts (wild canids) is critical for mitigating risk of transmission to humans. However, little is known about the transmission dynamics of the parasite in definitive hosts for this region. A study was therefore carried out to investigate the association of host‐level (sex, body condition), environmental (southern Ontario region, land cover), temporal (season, hunting season, calendar year) and extraneous factors (submitter type) with E. multilocularis infection in coyotes in southern Ontario. Between November 2015 and March 2017, 416 coyotes were collected from across the region as part of a study that investigated the prevalence and distribution of the parasite in wild canids; approximately 24% of coyotes were positive for E. multilocularis. Associations between infection and factors of interest were assessed via a mixed‐effects logistic regression model with a random intercept for submitter to account for clustering. Coyotes with poor body condition were at greater odds of E. multilocularis infection than those in good condition (odds ratio [OR] 2.14; 95% CI: 1.08–4.26; p = .030). A negative association was observed between infection in coyotes and the proportion of natural land in a coyote's estimated home range (OR: 0.67; 95% CI: 0.52–0.85; p = .001). Coyotes from the western region of southern Ontario had lower odds of infection compared to coyotes from the central region (OR: 0.26; 95% CI: 0.12–0.55; p < .001). These results can be used to help guide future public health prevention strategies for human alveolar echinococcosis.     

Identification of focus areas for Australian Bat Lyssavirus potential exposure prevention in the Metro North Hospital and Health Service region

Australian Bat Lyssavirus (ABLV) is a fatal rabies‐like disease spread to humans from bats. All people who report bat bites or scratches in Queensland are considered potentially exposed to ABLV and are followed up and treated to prevent ABLV. Preventing members of the public intentionally interacting with bats will reduce the number of potential exposures to ABLV. In order to target public health messaging, this study examines the epidemiology of potential ABLV exposures in Metro North Hospital and Health Service (HHS), a region of Queensland that encompasses metro and rural areas in the south‐east of the state. People who intentionally handled bats during the study period were more likely to be adult (93%), male (60%), scratched (51%) by a megabat (72%) and been potentially exposed while rescuing the bat when it was trapped or injured (72%). The number of potential exposures reported in Queensland has increased since 2013; the same year, a Queensland child died of ABLV. Seasonally, exposures are more common during bat breeding and nursing periods when bats are more active (summer to autumn). Although there were more notifications in a band stretching north from the inner city to northern metro suburbs, notification rates were higher in large rural statistical areas in the north of the HHS. These data will be used to develop geographically targeted ABLV prevention messaging for the general public.     

产权社会化

产权社会化与产权私有化、公有化之间既有区别又有联系。产权社会化作为一种经济制度,其合理性判断的依据是是否最大限度地实现社会公正。实现产权社会化是我国国有企业改革的最终出路。     

多层单元式住宅的公共空间与环境设计探讨

 多层单元式住宅是我国城镇住宅的主要类型,人们对居住环境的关注已从过去的室内环境逐步转移为室外公共空间与环境,本文结合我国传统的住宅文化和符合现代精神的设计理念,探讨多层单元式住宅的公共空间与环境营造,以创造一个自然、亲和、安全、健康的居住环境,提高城镇居民的生活质量。     

论林业经济中的“市场失灵”问题

在近几年涉及林业经济机制的研究中,出现了排斥市场机制的认识和做法.该文从“公共产品”、林业经济的“外部性”、林业特点等几个方面,运用制度经济学和资源经济学的理论对林业经济中的“市场失灵”问题进行了分析,对我国林业经济研究中普遍存在的市场机制积极作用的有限论进行讨论.作者认为:林业经济中的“市场失灵”问题与其它行业没有本质上的区别;政府的扶持是在特定时期提高社会对林业的重视程度,增加国家对林业的投入,提高林业在国民经济中的地位的需要,但林业发展不能依赖政府.林业的特殊性不是在林业中排斥市场机制积极作用的理由,市场机制对林业的发展具有积极的促进作用,市场机制的基本原则适用于林业.