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1.
《生物多样性公约》第十五次缔约方大会(COP15)计划于2021年在云南昆明召开, 大会将评估《2011-2020年生物多样性战略计划》执行情况及实施进展。如能达成协议, 将出台“2020年后全球生物多样性框架”, 作为指导2020年之后全球生物多样性保护的最新纲领性文件。这是生物多样性保护国际进程的一个里程碑, 也是展现中国以及云南多年来生物多样性保护成效的重要契机。作为中国生物多样性最为丰富的省份和具有全球意义的生物多样性关键地区之一, 云南在生物多样性保护方面投入巨大努力, 在全国较早发布省级《生物多样性保护战略与行动计划(2012-2030年)》、开创地方立法先河、率先试点建设国家公园、较早开展县域生物多样性本底调查与评估研究工作、建立了首个国家级野生生物种质资源库等, 在就地保护、迁地保护、重大生态工程等众多领域都取得显著成效。本文在梳理云南生物多样性保护进展与成就的基础上, 对保护成效进行了评估, 并有针对性地探讨了云南生物多样性保护未来发展方向及重大意义, 加强全省农业生物多样性的保护与可持续利用、发挥跨境生物多样性保护及减贫示范作用、协调发展生物多样性保护与少数民族传统知识保护等方面是云南省生物多样性保护今后发展的重要方向, 同时本文也为进一步促进云南生物多样性保护与管理提供了基础资料, 并为COP15提供地方履约实例。  相似文献   

2.
系统学与生物多样性   总被引:3,自引:0,他引:3  
系统学家200多年的努力,地球上最多仅有1/10生物被命名.至今,系统学却被误认为已是古老学科,基础设施和人才走向没落。1992年《生物多样性公约》被批准后:对系统学重要性有了重新认识.1994年国际上提出了“2000年系统学议程”。本文对“议程”提出的发现生物多样性、了解生物多样性及管理系统学知识等三大任务及每个任务的优先领域作了介绍.明确了系统学是保护和持续利用生物多样性的重要基础。应把系统学研究提到应有高度加以支持。  相似文献   

3.
中国履行《生物多样性公约》二十年: 行动、进展与展望   总被引:5,自引:0,他引:5  
1992年6月联合国环境与发展大会(UNCED)通过了具有里程碑意义的《生物多样性公约》, 至今已经20年。在此期间, 中国1993年建立了履行《公约》的国家协调机制, 1995-1997年实施了“中国生物多样性国情研究”, 2007-2010年编制了《中国生物多样性保护国家战略与行动计划》, 2011年建立了“中国生物多样性保护国家委员会”, 并针对《生物多样性公约》的目标, 实施了多项生物多样性研究和保护行动, 包括森林、草原、荒漠、湿地、海洋等自然生态系统保护; 物种资源调查、编目、数据库建设以及珍稀濒危物种保护; 外来入侵种防治与转基因生物生态风险评估等。同时, 在生物多样性本底查明、监测体系建立、就地保护、遗传资源获取与惠益分享、传统知识的保护与应用等方面还存在很多挑战, 为此, 本文有针对性地提出了区域生物多样性本底查明、就地保护和遗传资源及相关传统知识获取与惠益分享等未来重点研究方向。  相似文献   

4.
《生物多样性公约》第十五次缔约方大会(COP15)将评估全球生物多样性保护已有进展, 审议并通过“2020年后全球生物多样性框架”, 后者是实现2050愿景“与自然和谐相处”的关键, 有助于达成联合国可持续发展的目标。生物多样性资金机制现在是将来也是实施全球生物多样性保护行动计划的重要保证。根据《生物多样性公约》信息交换所的数据, 目前各缔约方每年对本国生物多样性保护的投资额度占其当年国内生产总值(GDP)的比例比较小。中国作为发展中国家, 2015年时生物多样性保护资金投入占GDP比例为0.255%, 在世界各国中处于比较高的水平。近年中国对生物多样性保护的投入连年增加, 2019年时已经达约0.6%。有研究表明, 目前全球每年生物多样性保护资金的缺口至少500亿美元, 未来十年还有更大的资金缺口, 而且当前已有生物多样性资金渠道比较单一, 并存在一些短板, 远远不能满足生物多样性保护行动的要求, 急需建立新的资金机制, 调动更多资源, 推动2030年生物多样性保护任务和目标的实现。《生物多样性公约》的资金机制可以与包括《联合国气候变化框架公约》在内的其他相关环境公约协同增效, 比如基于自然的解决方案将生物多样性保护与气候变化减缓等环境目标联系起来。中国作为COP15的东道国, 有积极协调磋商的责任, 力求在大会上推动形成一个新的资金机制, 即全球生物多样性保护基金, 为“2020年后全球生物多样性框架”的实施保驾护航。新的生物多样性保护资金机制将独立于现有的生物多样性保护资金机制, 具有多样化投资渠道并引入绩效评估机制, 将经费与任务目标关联, 提高资金的使用效率, 支持发展中国家的生物多样性保护行动。  相似文献   

5.
"生物多样性及其保护"一节的教学设计   总被引:1,自引:1,他引:0  
“生物多样性及其保护”是高二《生物》第2册第9章“人与生物圈”中的第2节内容,也是高中《生物》必修教材的最后一节。本节内容包括3方面:生物多样性的价值;我国生物多样性概况;生物多样性的保护。本节对于提高学生的环保意识。进而提高全民族的环保意识具有重要的意义。  相似文献   

6.
程卓  张晴  龙春林 《生物多样性》2022,30(7):22372-9918
《生物多样性公约》《名古屋议定书》《植物科学深圳宣言》等指导性文件都强调要认识到生物多样性相关传统知识的重要作用。生物多样性相关传统知识在生物文化多样性保护和可持续发展方面的作用也越来越受到人们的关注。民族植物学研究人与植物的相互作用关系, 是研究生物多样性相关传统知识的最主要学科领域, 近些年来取得了一系列的研究进展, 研究成果对于《植物科学深圳宣言》第六个优先领域目标的完成具有重要的推动作用。本文回顾了近年来特别是《植物科学深圳宣言》发布后的民族植物学研究状况, 主要从认知、利用、保护、管理植物等方面进行概述, 以便全面了解近期民族植物学研究的发展状况, 保护传统知识和植物文化, 为生物文化多样性的保护与发展做出重要贡献。近期获得的民族植物学成果, 说明民族植物学研究可以解决当下的一些热点问题。民族植物学的研究发现, 该学科能极大地促进传统知识、植物文化、生物文化多样性的保护, 尤其在农家品种以及濒危语言的保护方面有着巨大优势。  相似文献   

7.
生物高度多样性   总被引:2,自引:0,他引:2  
本文论述了生物高度多样性的概念及其评价尺度,介绍了世界上主要的生物高度多样性国家的概况。我国是生物高度多样性国家之一,其生物高度多样性与生态,地理条件及地历史密切相关,加强对生物高度多样性国家和地区的保护,对保护全球生物多样性来说有着极其重要的战略意义。  相似文献   

8.
李彬彬 《生物多样性》2020,28(5):596-237
随着新冠肺炎(COVID-19)的暴发, 野生动物、生物多样性和人类健康的关系再次引起广泛讨论。近20年来, 国际社会对于生物多样性与健康的研究日益增多, 并将它作为生物多样性保护与研究的重要方向之一。One Health作为一个新的理念框架, 通过交叉学科的研究和行动来推动包括人、所有其他动物及环境的健康。这个理念被不同国家、国际组织及协定所接纳及推广, 包括《生物多样性公约》等。本文通过总结近些年生物多样性对健康的影响方式、One Health的定义与发展历史、进入生物多样性议程的过程, 提出中国应用One Health改进相关野生动物管理以降低公共卫生危机的可能性的建议, 以及One Health框架内增强生物多样性保护所需的研究方向。One Health在中国的应用与发展应重视生物多样性研究和保护在其中的作用, 利用在景观生态学、群落内物种关系动态变化、气候变化影响、土地利用变化模式与趋势的研究, 与人类健康相结合, 提高One Health在应对公共健康和环境健康风险方面的准确性与及时性。同时, 需要加强我国在野生动物管理方面的投入和力度, 增强生物多样性保护与公共健康的联系, 将预警与干预措施前移, 减少疾病暴发带来的社会经济成本。  相似文献   

9.
罗茂芳  杨明  马克平 《广西植物》2023,43(8):1350-1355
在中国作为主席国的引领下,联合国《生物多样性公约》(以下简称《公约》)第十五次缔约方大会(以下简称COP15)第二阶段会议通过了62项决定,特别是达成了以变革理论为基础的《昆明-蒙特利尔全球生物多样性框架》(以下简称《昆蒙框架》),为全球生物多样性治理擘画了新的蓝图。该文就《昆蒙框架》的三个核心目标——保护地“3030目标”、资源调动、遗传资源数字序列信息进行解读,对保障《昆蒙框架》落地的相关决议进行简要介绍,并就我国未来的保护行动提出了相关建议:(1)加强生物多样性保护的主流化;(2)进一步制定详细的保护计划,明确保护区域的范围、目的和管理措施,并落实实施计划的责任部门和具体措施;(3)根据框架目标的监测要求,制定可操作的指标体系和监测计划;(4)继续加强生物多样性保护的意识和教育,提高公众对生物多样性保护的认识和重视程度,促进全社会的可持续生产和可持续消费;(5)大力推进国际合作,在更大尺度上探索和促进基于自然的解决方案,寻找对自然产生正面、积极效果的经济和社会发展路径。  相似文献   

10.
《生物多样性公约》第十五次缔约方大会通过了新的全球生物多样性战略,即《昆明-蒙特利尔全球生物多样性框架》(简称《昆蒙框架》)。随之通过的还包括《<昆蒙框架>的监测框架》《规划、监测、报告和审查机制》《资源调动》《能力建设与发展和科技合作》《遗传资源数字序列信息》等一揽子成果文件。《公约》缔约方需要在国内执行《昆蒙框架》及其一揽子成果。为支持我国执行《昆蒙框架》,本文简要回顾了《昆蒙框架》及其一揽子成果的制定进程,解读了《昆蒙框架》及相关一揽子成果的主要内容,评论了《昆蒙框架》对全球和国家的影响,并就我国如何执行《昆蒙框架》提出了建议,包括更新修订国家生物多样性战略行动计划,制定法律和政策以促进生物多样性的主流化,强化国家执行进展监测和评估,促进生物多样性融资工具的开发,建立全社会广泛参与的伙伴关系。  相似文献   

11.
Li  Chunlin  Cai  Qianqian  Luo  Youlong 《Cluster computing》2022,25(2):1421-1439

Improper data replacement and inappropriate selection of job scheduling policy are important reasons for the degradation of Spark system operation speed, which directly causes the performance degradation of Spark parallel computing. In this paper, we analyze the existing caching mechanism of Spark and find that there is still more room for optimization of the existing caching policy. For the task structure analysis, the key information of Spark tasks is taken out to obtain the data and memory usage during the task runtime, and based on this, an RDD weight calculation method is proposed, which integrates various factors affecting the RDD usage and establishes an RDD weight model. Based on this model, a minimum weight replacement algorithm based on RDD structure analyzing is proposed. The algorithm ensure that the relatively more valuable data in the data replacement process can be cached into memory. In addition, the default job scheduling algorithm of the Spark framework considers a single factor, which cannot form effective scheduling for jobs and causes a waste of cluster resources. In this paper, an adaptive job scheduling policy based on job classification is proposed to solve the above problem. The policy can classify job types and schedule resources more effectively for different types of jobs. The experimental results show that the proposed dynamic data replacement algorithm effectively improves Spark's memory utilization. The proposed job classification-based adaptive job scheduling algorithm effectively improves the system resource utilization and shortens the job completion time.

  相似文献   

12.
Hundreds samples of the charcoals and waterlogged woods excavated from three late Paleolithic sites (Suyanggae, Gunang-gul and Sorori) in the Jungwon Region in Korea were analyzed to reconstruct the vegetation and paleoclimate in the region. Analyzed charcoal samples from the Suyanggae site show that the climate was cold in the lower part and it became more warm and dry in the upper part. From the Gunang-gul site, only Picea spp. was identified, indicating cool climates. From the Sorori site, two species were found; Alnus spp. (95%) and Ulmus spp. (5%). No conifers were discovered. The species composition indicates that the climate condition of central Korean peninsula around 8,800 BP was little cooler and wetter condition.  相似文献   

13.
14.
The Grosse Badlhöhle (Austria, Steiermark) is the origin of one of the most perfect bone points of the early Aurignacian and one of the best perforated femurs of the same period, which can be regarded as musical instruments. Two other fragments of points raise intriguing questions on the first Homo sapiens sapiens which cannot be solved today but will contribute to future research. A review on the debate of Palaeolithic flutes will follow with experimental proofs of boring artificial holes with high quality pictures on the blow-hole and the lack of gnawing traces on the opposite face. The musical possibility of an instrument with only one hole is discussed with ethnographic analogies. Hafting, optimal conditions of strength and possible use of arrows will close the discussion on the Badlhöhle bone artefacts.  相似文献   

15.
The human remains recovered from “Grotte supérieure de Zhoukoudian” are the best-preserved Late Pleistocene human fossils in East Asia. For decades, as the representative of the Late Pleistocene human in East Asia, the Upper Cave skulls have been playing important role in the research of origins of modern Mongoloids and American Indians. With the advance of the origin and evolution of modern humans, more attention has been paid to the details and the mechanisms for the late Pleistocene human evolution and the formation of modern human populations. Both the origin and diversification of modern humans have been stressed. Some studies further trigger the debaters on the Upper Cave Man concerning its evolutionary level and its role in the formation of modern human populations in East Asia. To further explore these problems, we examined and compared 12 non-metric features on the 3 Late Pleistocene Upper Cave skulls and 162 Holocene individuals earthed from two archaeological sites of North China (Longxian and Yanqing). Our results indicate that 8 on the 12 features have different expression patterns between Upper Cave Man and recent Chinese leading the authors to believe that more primitive expressions appeared on the Upper Cave Man than on recent Chinese populations. Based on these findings, some problems on the intragroup variation in Late Pleistocene and Holocene populations are discussed.  相似文献   

16.
The archaeologists excavate the historic site and analyze data from the excavation site. Therefore, they study about the past affairs and circumstances unknown to the world. These data are composed of stones, plants, bones and geological features, which are stored in separate files according to the fields of study. It is important to mention that this information become the first step toward the solution of some hypothesis in Archaeology. Therefore, we need the system that can not only support integrated environment to find clues of the past, but also manage existing artifact data systematically and grasp relationships among the data. In this paper, we modeled the time, which is used in archaeology and geology, and built an entity relationship database to store Paleolithic data excavated in Jungwon region site of the Republic of Korea as one resource, which seem to give a base for integrated research and relationships in archaeology. In addition, we developed the Graphic User Interface that allows various users to connect to the established system through the web.  相似文献   

17.
Since the middle of 1970s, one rock-shelter, six caves and one open archaeological site have yielded several hominid fossils. Among them, fossils from Yonggok, Mandal, Sangsi and Hungsu cave sites are useful to reconstruct the general shape of the Upper Pleistocene Hominids in Korea. The main study of this paper is to focus on the reconstruction of the general shape of the upper Pleistocene hominids, and to examine the cause of cranial changes from the late upper Paleolithic to Mesolithic period in Korea. Biomechanical principles are also applied to reconstruct the social activity of the upper Paleolithic man in Korea. In addition, it is assumed that main proponent of Paleolithic cultures in Korea might be Homo sapiens rather than any other species. Based on the anatomical characteristics of skull, the axillary border of the scapular and the midshaft of the femur, general appearance of Homo sapiens during the Pleistocene in Korea could be reconstructed.  相似文献   

18.
In Korea, Quaternary deposits are characterized by marine and fluvial terrace deposits, commonly found in the coastal areas and at the sides of river valleys. The major terraces are classified into 5 different levels, i.e., alluvial plain (3-5 m asl), lower terrace (10-25 m asl), middle terrace (33-50 m asl), high terrace (55-85 m asl), and highest terrace (90-160 m asl). They were formed by the repetition of sedimentation and erosion due to sea level fluctuation and uplifting along the coastal areas during Quaternary period. The formation age of the lower marine terraces at the level of 10-20 m is interpreted to be the last interglacial (75-125 Ka, MIS = 5a-5e). The middle coastal terrace gravels distributed at the level of about 33-45 m above mean sea level and are to be formed before the last interglacial. Above coastal terrace deposits, slope deposits and paleosol layers are overlain and freezing and thawing crackings were developed in them. Major prehistory archaeological sites in the coastal areas are found in the slope deposits formed during last glaciations. The upper parts of the slope deposits are typified by paleosol layers with typical frost cracks (soil wedges) and frangipanes. As geochronological bases for subdividing Paleolithic cultures, two typical paleosol layers are useful because they are mostly found and imprinted with several horizons of frost cracks or soil wedges. The uppermost crack structures were formed under the boreal-periglacial climatic regime during the last glacial period of extremely cold-dry climate in Korea. The upper pedogenetic sediments containing frost cracks or soil wedges were formed between 24 and 17 Ka in many Paleolithic profiles. The lowermost paleosol layer with frost cracks (soil wedge), strongly attacked into hillslope sediments or last interglacial saprolite layers on the weathered basement rocks, were detected at least as old as 59-74,000 Ka. Lastly upper Paleolithic cultural layers were found in the young fluvial deposits, which had been formed since the Last Glacial Maximum (LGM). Some of them were particularly continued as late as the Pleistocene-Holocene Transition Period.  相似文献   

19.
The painting matter of the “back to back bison's panel” of Lascaux was examined and analysed by electron microscopy in order to understand the know-how of Magdalenian artists. The observation of several samples coming from specific areas of the two bisons give an access to the nature of the used pigments, to the preparation mode used to obtain various colours and also to the application mode. Thanks to this physicochemical approach, we can make hypotheses about the mind and the gestures of the artists.  相似文献   

20.
The term “precision”, involving the contact between the tips of thumb and the index is generally attributed to humans, tool use and associated with morphological criteria. Identified in fossils, those criteria are used to assert that they manipulated tools. Observations of 69 individuals belonging to Catarrhines and Platyrrhines allowed us to quantify surfaces of fingers used during simple tasks of grasping both small and large objects, as well as during complex tasks of proto-tool and tool use. We concluded that precision grasping is not peculiar to humans and that it is not systematically linked to tool use. These results allowed us to discuss morphological traits used till now to deduce precision and tool use from the fossils. Besides, our analyses let appear a recurrent proximity between the capuchins and the humans, species distant in a phylogenetic point of view, suggesting the possible existence of functions and close behaviours in spite of great genetic distinctions.  相似文献   

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