农业部发出通知:做好今年长江禁渔工作

近日，农业部发出《关于加强2005年长江禁渔期管理工作的通知》，要求沿江各地进一步落实长江禁渔期制度，切实做好2005年长江禁渔管理工作。     

专家称长江即将无鱼可捞“全面禁渔”将提上日程

“我从2006年就呼吁长江全面禁渔，呼吁了7年，终于看到了一点希望。”中国权威鱼类专家、中科院院士曹文宣口中的希望就是今年9月10日在武汉举行的“长江禁渔期制度专题研讨会”。正是这个研讨会，开始将长江“全面禁渔”提上议事日程。实际上，我国2002年就开始实施长江禁渔期制度，每年禁渔期长度为3个月。“禁渔期制度起不到理想的保护作用，禁渔期过后，渔民会加倍打捞，要想彻底扭转长江现有生态局面，     

政策要览

农业部：2005年长江流域继续实行春季禁渔农业部渔业局有关负责人1月18日表示,2005年长江流域将继续实行春季禁渔期制度,禁渔期间将禁止一切捕捞作业,以进一步养护长江渔业资源,促进沿江渔业经济持续健康发展。长江禁渔期制度是依据渔业法有关规定,经国务院     

2003年度中国十大渔业新闻

1.长江禁渔期制度正式全面实施。1月6日农业部发出《关于实行长江禁渔期制度的通知》,规定从2003年起,今后每年实行为期3个月的长江禁渔期,葛州坝以上水域禁渔时间2月1日至4月30日,葛州坝以下水域禁渔时间为4月1日至6月30日。禁渔范围包括上海、江苏、安徽、江西、湖北、重庆、四川、贵州、云南等十省(市)的长江江段。2.《远洋渔业管理规定》6月1日起实施。农业部4月18日发布该项规定,于6月1日起正式实施。规定共分六章三十四条,从远洋渔业的管理范围和基本制度,远洋渔业项目的申请和审批,远洋渔业企业资格认定和项目确认,远洋渔业船舶和船…     

丹江口春季禁渔工作成效显著

<正>今年是实施长江禁渔制度的第六年,为保护丹江口库区渔业资源,促进渔业经济可持续发展,丹江口市认真贯彻落实农业部及湖北省人民政府有关长江禁渔的系列指示精     

今年将正式实行全长江禁渔期制度

从农业部在京召开的“实行长江禁渔期制度新闻发布会”上传来消息,自2月1日起正式实行全长江禁渔期制度。由农业部统一部署,沿长江10省(市)人民政府负责组织实施。     

农业部:长江流域将实行4个月禁渔期制度

正为进一步贯彻落实党中央国务院《关于加快推进生态文明建设的意见》,更好地养护水生生物资源,保护水域生态环境,推动渔业绿色发展,日前农业部发布通告,公布调整长江流域禁渔期制度。《通告》要求,长江主要干支流和重要湖泊以及淮河干流全面推行禁渔期制度,禁渔时间从之前的3个月延长到4个月。调整后的禁渔期制度从2016年起实施。据农业部有关负责人介绍,长江流     

长江流域首次全面禁渔期间不许市民江边垂钓

<正> 为保护、恢复长江渔业资源,经国务院同意,农业部决定从2003年2月1日起实行长江禁渔期制度。 以葛洲坝为界,长江被分为上下两段,进行全面禁渔。禁渔令涉及重庆、上海、江苏、安徽、江西、湖南、湖北、四川、贵阳、云南等两市八省。比次长江禁渔范围之大,史无前例。从     

海洋伏季休鱼和长江禁渔的背景和成效

本文较为详细地介绍了我国实施海洋伏季休鱼和近来实施的长江禁渔二大保护渔业资源制度的重要意义、相关背景、制度内容、实施成效.为渔业工作者提供重要的参考.     

石首长江禁渔实行“驻下去,聘上来”

石首市渔政局自长江试行禁渔期制度以来,连续两年被评为湖北省长江禁渔先进单位,去年又被农业部授予全国长江禁渔先进单位。在此基础上,该局及早动员部署,于3月22日召开了由水产、公安、工商、财政、广播电视局等单位参加的禁渔工作领导小组会议,层层签订江段、市场管理责任状,     

饲料中镉含量的测量不确定度评定

分析石墨炉原子吸收光谱法测定饲料中镉含量不确定度各个分量,对其测量不确定度进行合理评定,结果表明:饲料样品中镉含量为0.052 mg/kg时,其扩展不确定度为0.0035 mg/kg(k=2),校准过程和测试过程随机效应是引入不确定度的主要原因。     

面粉中含砂量测定的不确定度评定

本文依据《粮油检验粉类粮食含砂量测定》对面粉中含砂量进行测量,并对其测量结果进行不确定度分析,探究影响测量过程中不确定度分量来源并进行评定。分析得出,扩展不确定度为0.0004%,面粉中含砂量测定结果为0.017%±0.0004%(k=2)。     

中国水稻生产效率的变动分析

一、引言中国是世界最大的稻谷生产国 ,水稻是中国最主要的粮食作物。我国加入WTO后 ,在市场经济的调节下 ,稻谷生产与贸易受国际市场和价格的影响越来越大 ,因而如何保护我国的农业 ,提高我国水稻的国际竞争力 ,促进我国农产品的生产和贸易 ,是摆在我们面前的一件重要事情。而生产效率的提高有助于提高我国水稻的国际竞争力 ,所以 ,研究水稻的生产效率很有意义和价值。生产效率是指产出量与全部投入之比 ,表明产出量的变动与全部投入量变动的关系 ,以衡量生产率的变化对经济增长的作用。生产效率一般是指生产系统的总要素生产率 (TotalFa…     

食品中金黄色葡萄球菌定量检测的不确定度评定

为提高食品中金黄色葡萄球菌定量检测结果的准确性,本文对测量不确定度进行分析和评定.按照《食品安全国家标准食品微生物学检验金黄色葡萄球菌检验》(GB 4789.10—2016)第二法金黄色葡萄球菌平板计数法对人工染菌的乳粉样品进行检测,按照《测量不确定度评定与表示》(JJF 1059.1—2012)分析不确定度来源、评定...     

农地生产率变化及不同规模农户农地生产率比较研究--浙江省农村固定观察点农户农地经营状况分析

本文以浙江省农村固定观察点的农户为研究对象①,对近十几年来农户农地利用结构和生产效率方面的变化做一实证分析。一、农地生产率变化分析(一)农地生产率及其经营效益变化从观察户的跟踪观察资料看,随着科学技术的进步和农户生产技术水平的提高,农户的农地生产率总体呈上升趋势。这里我们以浙江的主要农作物粮食的单位面积产量与农地单位面积投工两个方面来说明。从表1可见,在固定观察点建立以来的14年中,按播种面积计算的粮食亩产提高了15.14%(1988年较1986年提高20.60%);同期,每亩农地的用工量减少了36.76%。表1的后半部分是农户农地经…     

分光光度法测定食品中亚硝酸盐不确定度评估

本文根据《测量不确定度评定与表示》(JJF 1059.1—2012)和《食品安全国家标准食品中亚硝酸盐与硝酸盐的测定》(GB 5009.33—2016),利用分光光度法对食品中亚硝酸盐的含量进行测定,建立数学模型对亚硝酸盐含量测定的不确定度来源分量进行计算、分析,食品中亚硝酸盐的测定结果可以表示为X=(11.2±0.70)mg·kg^-1,k=2,为评价试验测量结果的真确性提供科学依据。     

重庆缙云山旅游竞争力提升研究

缙云山作为国家级重点风景名胜区,在自然资源、生态、区位和宗教旅游方面具有一定的旅游竞争优势,但如何有效利用这些优势资源提高景区的竞争力仍是其面临的重要问题。通过分析缙云山的旅游竞争力基本要素,指出其目前存在的旅游产品单一、景区客源市场小等问题。提出改变旅游资源开发方向,完善解说系统,培养专业人才,加强管理等提升缙云山旅游竞争力的相关措施。     

明代华北农业发展的推动因素分析——生产要素角度的描述与估计

本文以明代时期的北直隶、山东、河南为例,从生产要素的角度分析明代华北农业发展的推动因素.一是人口的增长、迁移和耕地面积的增加.二是农田水利,除了治理河流,井灌得到了广泛采用.三是农业技术有所进步.本文还尝试用生产函数模型,分别对中性、劳动增强型和土地增强型的技术进步率进行估计,结苯表明,明代华北农业的增长方式主要依赖于劳动和耕地的增加.在资源约束日益加剧的今天,要进一步重视技术进步在推动农业发展中的作用,同时在技术选择和创新中还特别需要注意与各地的资源禀赋条件相适应.     

Assessment of implementation of protection of mineral deposits in spatial planning in Poland

A complex of raw materials available in a given commune shapes its functional − spatial structure and affects local economic development. The use of the resource base of minerals depends largely on the management of the space and respecting the zoning restrictions connected with protection of mineral deposits. The urgent need to protect them is due to their non-renewable nature and progressive development of the land. Preserving access to deposits is essential to ensure future mineral supply necessary for the economic development. This article presents the results of the assessment of implementation of rules of protection of mineral deposits in spatial planning at the level of territorial units in Poland.The study has been conducted in twenty-three communes of the Lesser Poland voivodeship, for thirty-one unexploited mineral deposits designated for protection in the Spatial Development Plan of the Lesser Poland (Małopolskie) Voivodeship of 2003. In the study of conflict with development of the selected mineral deposits with the environment, factors related to land use, forms of nature protection, water conservation and planned land development have been evaluated. The assessment has taken into account the importance of individual factors of conflict by giving them weights by means of pairwise comparison method. Five classes of conflict of the deposit management have been proposed: non-conflicting deposit, small conflict, medium conflict, major conflict and very big conflict. Almost equal numbers of deposits (9) belong to the class characterized by a of medium, small and large conflicts. Road and technical projects as well as expected significant impact of exploitation on the environment restrain exploitation. The impact is related to the necessity of use of explosives during the exploitation and by the cumulative effect of the mining activity already existing nearby. Analysis of the planning documents of the communes has shown both inadequate protection of mineral resources, including designation of areas of deposits for single-family housing, and a few examples of properly maintained spatial planning in the field of protection of mineral deposits. Information obtained from the environmental survey has been supplemented by assessment of the social aspect. In nine communes it has been determined that the areas of mineral deposits are not subject to spatial conflicts but in seven communes there is opposite situation. The most important benefits from the mineral exploitation which has been indicated in the studied documents included: jobs, access to construction materials and development of the commune.Present work allowed to define the areas and the scale of conflicts induced by development of mineral deposits and to propose measures for rational management of mineral resources. Recognition of the existing and potential conflicts can help to make the right decisions concerning development of the area and minimising impacts of exploitation of the mineral deposits.     

Evaluation of forestland use in mining operation activities in Turkey in terms of sustainable natural resources

Mining has been necessary for human activities and is conducted in line with this need. The location of mines must sometimes be where land use overlaps with other activities because the location of the mined substance cannot be changed. In Turkey, forestland are the most common of these overlapping areas. Therefore, mining has frequently occurred on forestland in Turkey—and worldwide. After the mining operation activities are conducted, the forestland are rehabilitated and returned to the forest administration. The examination of used and returned areas provides an opportunity to create an optimal situation between “mining for sustainable development” and “protection of forestland.”Accordingly, several questions, such as mining production amounts, degrees of social and economic development of the cities in which enterprises are conducting mining, the quantity of the areas they used for mining activities in forestland, the areas which were returned to the forest administration, operating license areas and operation permit areas, and the life of mining operation, were asked to the mining enterprises in Turkey through the “Survey Monkey” program in 2018. Thus, according to mineral groups, different land use rates were compared with the operating license areas, and the land uses for each mineral group were analyzed by considering the operation activity periods. The results indicate that the sustainability of the use of forestry in mining activities in Turkey has changed in a positive direction, particularly because of changes in mining and environmental legislation in Turkey over the last decade.