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61.
受政策调整预期、植棉成本不断上升、种植业结构调整等因素影响,2014年中国棉花播种面积普遍下降。2014年以来,皮棉价格震荡下行,国内外价差缩小;棉花临储工作全部完成,收储630.7万t;棉花进口量大幅减少,国内纺纱量有所增长,纺织品服装出口略有恢复。棉花目标价格政策对市场影响尚未完全展现,未来市场不确定性仍然较大。受国内经济增速放缓、棉花目标价格政策和储备棉投放新政实施等多种因素影响,预计短期内国内棉花价格将继续下行。 相似文献
62.
Y. Yonvitner Jií Patoka Ernik Yuliana Lucie Bohat Elena Tricarico Tom Karella Antonín Kouba Julian D. Reynolds 《水产资源保护:海洋与淡水生态系统》2020,30(2):219-224
- The large island of New Guinea has a rich indigenous astacofauna represented by numerous parastacids from the genus Cherax. The western half of the island is part of Indonesian territory.
- Indonesia is known to be the main exporter of ornamental crayfish globally, and certain New Guinean species are exploited as ornamentals within the international pet trade. Moreover, one non‐indigenous species has been previously recorded being cultured in Java, Indonesia. This species, the North American Procambarus clarkii, is a vector of crayfish plague, the disease that is lethal to most parastacids. This population has already tested positive for the disease.
- As the transport of non‐indigenous crayfish within the Indonesian territory is not restricted, their introduction to New Guinea can be expected. The Indonesian market was therefore surveyed for ornamental crayfish and their environmental suitability evaluated, as represented by temperature during the drought and rainy seasons in New Guinea.
- Four North American and one Australian species were found advertised for sale. One of them, P. clarkii, was assessed as the most damaging species, followed by other North American species. A total ban on the culture and transport of the highest risk crayfish species in Indonesia and Papua New Guinea is recommended.
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64.
陈松 《安徽农业大学学报》2003,(3):77-79
商业秘密能够给权利人带来巨大的经济价值或竞争优势,因此要加强对商业秘密的保护,尤其是要加强对雇佣关系中的商业秘密的保护。在雇佣关系中,商业秘密权的保护与
择业自由权的保护存在着冲突,是保护商业秘密的难点。竞业禁止作为保护商业秘密的手段,同时存在于在职期间和离职后,雇主通常与雇员签订竞业禁止协议来保护商业秘密,如何确认竞业禁止协议的合法性、合理性问题是保护商业秘密的又一个难点。 相似文献
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67.
陈昭玖 《江西农业大学学报》2007,29(3):504-507
农产品相关企业加入相应的企业主导型农产品行业协会的过程是企业和协会博弈的过程,企业的加入行为受利益最大化动机的驱使。研究结果表明:①冷酷战略是整个子博弈的纳什均衡,说明企业是否加入行业协会是建立在严格的约束和惩罚机制的基础上的;②加强自律和法律监管力度是行业健康发展的前提保证;③由于行业协会的努力而给企业带来的效益增值越大,则企业给行业协会奖励的动机越强。 相似文献
68.
城乡商贸统筹发展中存在的问题及对策探讨 总被引:1,自引:0,他引:1
探讨了重庆市在城乡商贸统筹发展进程中存在的认识不到位、乡镇基础设施建设滞后、城乡配套服务及市场管理差异大、城乡商业网点布局不合理、城乡收入差距持续扩大、城乡商贸流通市场体系规划滞后和政策及保障机制不健全等主要问题,并针对这些问题提出了促进城乡商贸统筹发展的对策。 相似文献
69.
Jeffrey A. McNeely 《Euphytica》2006,148(1-2):5-15
Summary While the issue of invasive alien species has important biological components, economic factors such as global trade deserve
much greater attention for several reasons. First, virtually all of our planet’s ecosystems have a strong and increasing anthropogenic
component that is being fed by increasing globalisation of the economy. Second, people are designing the kinds of ecosystems
they find productive or congenial, incorporating species from all parts of the world through quicker and more efficient means
of transportation. And third, growing travel and trade, coupled with weakening customs and quarantine controls, mean that
people are both intentionally and inadvertently introducing alien species that may become invasive. The great increase in
the introduction of alien species that people are importing for economic, aesthetic, accidental, or even psychological reasons
is leading to more species invading native ecosystems, with disastrous results: they become invasive alien species (IAS) that
have significant deleterious effects on both ecosystems and economies. This paper examines some of the important non-biological
dimensions of the IAS problem, including historical, economic, cultural, linguistic, health, sociological, management, legal,
military, ethical, and political dimensions. These are addressed in terms of the causes, consequences, and responses to the
problem of IAS. These dimensions of IAS are fundamental, and successfully addressing the problem will call for greater collaboration
between different economic sectors and among a wide range of disciplines. The Convention on Biological Diversity, the negotiations
of the World Trade Organisation, and many other international agreements offer important opportunities for addressing the
complex global problems of IAS through improved international cooperation. 相似文献
70.
Agglomeration Effects and its evolution lead to the formation and further evolution to multi centers of a city's original center.During the further evolution to multi centers, there exists a rule which is proved to be true by the example of the formation and evolution of The dynamic adjustment of functions between business and trade within centersdrive the formation of a modern city's central business district(CBD).This rule discloses the following facts in planning and policy making of CBD:we must obey the natural rules of city centers' evolution,including the rules of Agglomeration Effects;we must lead CBD to mainly agglomerate business,not agglomerate everything;we can choose the original city center or other place out of the original city center as a CBD's location. 相似文献