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1.
乡村振兴离不开乡村道德建设水平的提升.当前部分农村地区道德建设存在着良风美俗遗落、家庭伦理异化、乡土情怀渐失等问题.这些问题的产生是经济社会快速发展和乡村道德建设缺位共同作用的结果.要解决这些问题,需要从内部优化和外部约束两个维度共同着手,重塑农村伦理道德准绳,形成高效的组织体系,创新工作开展方法,强化法律约束和制度保障,在常抓不懈中提升农村道德建设水平.  相似文献   
2.
土地整治项目是指通过一定规划方案和工程措施对现有未利用地或利用率较低土地进行综合治理的行为,为保障我国粮食安全和落实最严格的耕地保护政策作出了重要贡献。但结合工程实施现状来看,重多土地整治项目由于资金缺口较大、管理不到位等原因,出现了工程质量较差无法达到严格验收条件的现象,工程质量已成为影响工程形象和加强土地利用的巨大障碍。由于土地整治项目包含内容较多,且涉及农业、林业、水利以及环保等部门政策限制较多,在具体实施过程中存在较多困难。因此,做好项目实施过程中的质量控制和管理,成为了做好土地整治项目的关键,也是项目面临的必须要解决的重大问题。  相似文献   
3.
在高职课程建设中,教学内容和课程体系的设计实现与行业政策、标准的紧密衔接一直是高职高专类高校专业关注的重点。农产品基础课程作为物流管理专业特色课程,存在无教材、授课内容随意性比较强、和行业相关度不高、教学难度大等问题。在与行业政策、标准融合的基础上,对课程改革思路、课程改革内容等进行探索,使之更加贴近物流管理专业的行业实际,对培养高技能型农产品物流人才有重要意义。  相似文献   
4.
中国农村厕所改造及粪污处理标准体系研究   总被引:4,自引:3,他引:1  
农村无害化卫生厕所改造可以有效地减少农村地区粪-口传播疾病的发病率,保障人民群众身体健康和生活品质。2018年以来,农业农村部会同有关部门积极行动,大力推进农村厕所革命,取得了积极成效。然而,一些地方农村厕所"建不好、用不好、不好用"等情况仍有发生,究其根源,农村厕所改造及粪污处理标准规范缺失是重要原因。农村厕所改造及粪污处理标准体系是科学指导农村改厕和粪污资源化利用、规范行业进步和产业发展的重要手段。该研究从基础、通用、专用标准3个层次,系统梳理了中国农村厕所改造及粪污处理现行国家和行业标准,分析了存在的问题,明确了标准体系构建原则和目标,研究构建了标准体系结构和框架,提出了标准体系重点内容和制修订建议,以期为推动中国农村厕所革命提供支撑。  相似文献   
5.
Following rapid social and economic development over the past several decades, soil pollution by heavy metals (HMs) has been both serious and widespread in China. The Soil Environmental Quality Standards (SEQSs) in China (GB 15618-1995) have been introduced to encourage and enforce sustainable soil HM management. However, in recent years, HM contents in soils have frequently been found to exceed their associated standard values, while the crops growing on them might still meet regulatory standards, and vice versa. There is thus growing awareness that GB 15618-1995 does not effectively regulate current soil HM pollution, as it has encountered bottlenecks, and disappointing outcomes caused by poor execution along with deficiencies and gaps in the policies. However, due to the deficiency of scientific research about relationships between soil HM concentrations and their ecological or human health effects, the development of SEQSs in China is still greatly restricted. This paper discusses international SEQSs of HMs as well their development in China over time, then examines current Chinese SEQSs to demonstrate their potential regulatory deficiencies by referring to international SEQSs. The corresponding legislative policies are described, and scientific information or responses are outlined for maintaining soil environmental quality. China's experience has shown that policy and science can be linked to work in tandem to better understand and manage soil quality issues.  相似文献   
6.
Design and reporting quality of diagnostic accuracy studies (DAS) are important metrics for assessing utility of tests used in animal and human health. Following standards for designing DAS will assist in appropriate test selection for specific testing purposes and minimize the risk of reporting biased sensitivity and specificity estimates. To examine the benefits of recommending standards, design information from published DAS literature was assessed for 10 finfish, seven mollusc, nine crustacean and two amphibian diseases listed in the 2017 OIE Manual of Diagnostic Tests for Aquatic Animals. Of the 56 DAS identified, 41 were based on field testing, eight on experimental challenge studies and seven on both. Also, we adapted human and terrestrial‐animal standards and guidelines for DAS structure for use in aquatic animal diagnostic research. Through this process, we identified and addressed important metrics for consideration at the design phase: study purpose, targeted disease state, selection of appropriate samples and specimens, laboratory analytical methods, statistical methods and data interpretation. These recommended design standards for DAS are presented as a checklist including risk‐of‐failure points and actions to mitigate bias at each critical step. Adherence to standards when designing DAS will also facilitate future systematic review and meta‐analyses of DAS research literature.  相似文献   
7.
Abstract

Foliar analysis is an effective method to diagnose the nutritional status of plants. However, the mineral concentration in foliar tissue has traditionally been evaluated by assessing the activity of each element, without considering the interactions between them. To address this, dual interactions were calculated using the Diagnosis and Recommendation Integrated System (DRIS) to identify which crop nutrients are most influential in nutrient imbalances and which are the most limiting nutrients for the nutritional status of banana crops in Ecuador. To achieve this, a regional survey of the nutritional status and its productivity levels was conducted for 188 different sites during the crop season in 2017–2018, involving banana cultivars ‘Vallery’ and ‘Williams’, from the Cavendish subgroup. The DRIS calculation method was combined with Beaufils and Jones functions. From the initial 188 foliar samples, 83 samples (representing 44% of the population) were considered to represent the high-yield reference population, with yields of 38–60 t ha?1. The DRIS method defined the mean nutritional balance index, which was not found to be statistically correlated (p?>?0.05) with productivity, revealing that there was no significant association with the nutritional status of the plants. Specific DRIS norms were obtained and indicated that deficiencies in K, N, Ca, and Fe, and excesses in Mn, B, Cl, Zn, S, Cu, and Mg were the most limiting nutrients for banana cultivars in the south of Ecuador.  相似文献   
8.
为建立黎药海巴戟药材质量标准,为其质量控制及资源开发利用提供科学依据。依据《中国药典》2015 年版中药质量标准研制的要求,对药材性状、鉴别、检查、浸出物、含量测定等进行研究。明确了海巴戟药材性状和显微结构特征,并建立了其专属性薄层色谱鉴别方法;规定海巴戟药材多糖含量不得少于 6.0%、东莨菪内酯含量不得低于 0.017%、水分不得超过 10.0%、总灰分不得超过 6.0%以及醇溶性浸出物不得少于 20.0%。本研究制定的黎药海巴戟药材质量标准,可为该药材的质量控制提供依据。  相似文献   
9.
This study examines the development and trends of China's alfalfa market and imports, identifies key factors for the rapid increase in China's alfalfa imports, and discusses potential impacts of the U.S.–China trade dispute and retaliations on the alfalfa markets and trade in both nations. China's rapid transition toward larger-scale commercial dairy production, with enhanced feed and cost management as well as quality and safety control, and its limited resources for high-quality alfalfa production are key factors for the dramatic increase in its alfalfa imports, from 19 601 metric tons in 2008 to 1.38 million metric tons (mmt) in 2018. While the United States dominated China's alfalfa imports with an average share of 97.01% from 2007 to 2017, the share dropped to 83.76% in 2018 and 63.28% in January 2019 due to the trade dispute and retaliations started in 2018. China will likely remain a large importer of alfalfa because of both its growing demand and the comparative advantages of imported alfalfa in quality and price, but the imports from the United States will be highly affected by the ongoing trade dispute and negotiations. China is also expected to make more efforts to reduce its dependence on U.S. alfalfa through increased investment in domestic alfalfa production and identification of alternative sources of alfalfa and other hay imports.  相似文献   
10.
城乡二元结构是当前我国城乡发展中面临的重大问题,而城乡在规划上的脱节既是城乡二元特征的重要表现,也在一定程度上是城乡二元结构延续的原因。完善规划体制,通盘考虑城乡发展规划编制,解决城乡规划脱节问题是城乡一体化发展背景下规划界需重点解决的问题。以山东省为例,介绍了其城乡规划编制情况,分析了城乡规划存在的主要问题及产生这些问题的根源,提出了相应的政策建议,以期能为规划上解决城乡脱节问题提供一些启发。  相似文献   
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