高校图书馆服务于农村劳动力教育培训研究     

马韬靖  韩菲 《农业网络信息》2009,(3)

本文就高校图书馆教育培训优势,以及如何利用图书馆对农村劳动力教育培训进行研究,旨在为当前农村劳动力素质提高拓展新途径.  相似文献   

上海市稻田耕作制度演变与绿色高质量发展进程     

李金文  曹林奎  曹燕  倪远之  钱晓雍 《华中农业大学学报》2022,41(6):101-110

水稻生产不仅对于保障粮食安全意义重大,同时稻田作为一类特殊的人工湿地,对城市的可持续发展也至关重要。上海稻田耕作制度从20世纪80年代的三熟制转变为两熟制,到2010年代又从两熟制逐渐调整为一熟制。近年来,逐步形成了用地与养地相结合的耕作制度,部分地区成功探索了稻田种养结合的绿色生产模式,并逐步实现了品牌化生产。然而,上海水稻绿色生产也面临诸多挑战,包括粮食稳产压力、资源与环境约束以及高度依赖财政补贴、自身盈利能力不足等。针对上述问题,本文提出了今后稻田耕作制度绿色、高质量发展的对策：在确保耕地面积、稻田比例不下降与稳定单产潜力的基础上,稳定全市粮食产量;创新和集成绿色栽培技术,提升稻田湿地生态功能;深化稻米品牌建设,以品牌化实现生态产品价值,提升水稻绿色种植经济效益。  相似文献   

Witnessed Cardiac Arrest in a Hypothermic Avalanche Victim Completely Buried for 2 Hours     

Nicholas Daniel  Nicholas Weinberg  Frank Carus  Benjamin Church  Ken Zafren 《The Forestry Chronicle》2021,32(1):92-97

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我国梯田农业生态系统文化服务研究热点与趋势          下载免费PDF全文

杨翠霞  卫伟  刘彬 《农业资源与环境学报》2022,39(5):869-877

梯田农业生态系统是全球和中国重要农业文化遗产的重要组成部分。为探讨国内梯田农业生态系统文化服务的研究热点和发展态势,本研究利用CiteSpace软件,以CNKI数据库中我国2001—2020年1 403篇与梯田农业生态系统文化服务相关的文献为研究对象,讨论其研究现状、进展和热点。结果表明,发文量整体呈现波动式上升趋势,涉及新工科、新文科等多学科交叉领域研究。研究热点演化具有缓慢发展、快速发展、提升和优化发展的3个阶段性特征,并与国家相关政策及学科发展等有很大关联。梯田文化多样性、服务管理与应用、价值评估等宏观与微观研究主题讨论不断深化,研究态势从早期相对独立的稻作文化和梯田文化,转变为赋能乡村振兴的梯田农业生态系统文化服务,同时梯田可持续管理的研究力度有所加大。本研究回顾和梳理了我国梯田农业生态系统文化服务的研究进展与核心议题,以期为该领域研究和乡村振兴战略实施提供参考依据。  相似文献   

宣化庭院漏斗架式葡萄栽培模式的生态系统服务功能研究   总被引：1，自引：0，他引：1  

许晴  李亚男  许中旗 《河北林果研究》2014,(3):274-277

宣化牛奶葡萄以庭院式栽培为主,目前仍大量沿用传统的漏斗式栽培模式。为了给这种传统葡萄栽培方式的传承和保护提供科学依据,采用野外观测及农户调查等方法对漏斗葡萄栽培模式的生态系统服务功能进行了研究。研究结果表明,该模式葡萄产量为2.65万kg/hm2,经济收益可达18.38万元/hm2,宣化区总产量达到3 600多t,经济收入达到2 500万元;该栽培模式在庭院中创造了丰富的生态位,具有丰富的生物多样性,在调查的30个农户中,观察到87种植物,分属43科62属;漏斗葡萄地上部分碳贮量可以达到5.85t/hm2,而且由于寿命较长,葡萄植物体内存贮的碳能够得到长期固定;同时,漏斗葡萄造型优美,景观独特,具有突出的旅游开发价值。  相似文献   

漳平市烟农专业合作社可持续发展探析——基于烟农需求的调查与分析     

黄志宏 《台湾农业探索》2014,(2):51-54

调查分析了漳平烟区烟农对专业化育苗、专业化机耕、物资统一代购、煤球加工等方面的需求情况,基于调查结果提出了烟农专业合作社可通过开展专业化服务、统一代购、拓展经营等实现可持续发展的思考。  相似文献   

政府购买服务承接能力建设问题研究——以部属公益二类事业单位为例     

汤卫  孟春华  刘晓晶 《农业科研经济管理》2024,(1):23-27

政府购买服务是我国公共服务供给的一种模式创新,对经济社会高质量发展具有重要意义。党的十八大以来,部属公益二类事业单位作为政府购买服务新的重要的承接主体,在实践中服务能力与服务质量不断得到提升,但由于历经时间不长,部属公益二类事业单位的承接能力与政府购买服务的要求还不完全相适应,还存在着一些需要研究解决的矛盾。文章对承接能力的概念、内涵和基本特征进行了创新性分析界定,在此基础上,结合当前部属公益二类事业单位政府购买服务承接能力的现状与问题,提出了加强承接主体能力建设的思路与对策。  相似文献   

Building shade affects light environment and urban greenery in high-density residential estates in Singapore     

Puay Yok Tan  Mirza Rifqi Bin Ismail 《Urban Forestry & Urban Greening》2014,13(4):771-784

Urban green spaces are an important component of the urban ecosystem of cities as they provide a range of ecosystem services that contribute to sustainability and livability of urban areas. The extent to which such services are provided is influenced by limitations on biological processes that underpin such ecosystem services. A poorly understood limitation in the urban environment is the effects of shade created by buildings on the adequacy of photosynthetically active radiation (PAR) for plant growth. We examined the effects of building shade in high-density, high-rise residential estates in Singapore on the level and distribution of PAR, and how PAR might in turn be correlated with growth of plants in community green spaces nested within these estates. Our estimates showed that high-rise and high-density buildings reduced daily PAR by almost 50% when compared to fully exposed conditions. The reduced PAR levels were correlated with lower vegetative and reproductive growth of several species of shrubs, and increased slenderness of two tree species. The shade environment created by buildings was differentiated from shade under vegetation canopies by longer periods of high instantaneous PAR during a diurnal cycle. There was also evidence of higher red to far-red ratio in the spectral composition of PAR. We suggest that an understanding of the spatial and temporal characteristics of PAR is necessary for appropriate selection of plants, particularly to match daily PAR received on site to daily light integral requirements of plants for improved delivery of ecosystem services.  相似文献   

宾县生态系统服务时空格局及权衡协同关系     

宁静  石东伟  周思宇  夏子良 《水土保持研究》2022,29(5):293-300

东北黑土区是我国重要的生态功能区,也是主要的粮食产区,持续多年的开垦利用,加剧了该地区生态环境的恶化,因此探究黑土区生态系统服务的时空分异特征及协同权衡关系对该区域社会经济生态协调发展有重大意义。以宾县为研究区,综合利用InVEST模型、RUSLE模型、CASA模型、R语言和GeoDA软件,定量测度该县2000—2020年产水量、土壤保持和碳固定3种生态系统服务的时空格局及权衡与协同关系。结果表明:(1)从时间变化看,产水量呈上升趋势,碳固定和土壤保持呈先降低后上升的波动变化趋势;(2)从空间分布看,产水服务高值区表现为由中部向四周递减的趋势,碳固定和土壤保持服务总体呈现为南高、东低的空间分布格局。(3)权衡协同关系表明,2000—2020年,协同关系是宾县生态系统服务间的主导关系; 数值上,3种生态系统服务的协同关系持续增强,具体表现在相关系数和Moran's I指数的增加; 空间上,正、负相关集聚性明显,权衡协同关系分布空间分异性显著。综上,宾县生态系统服务变化呈上升趋势,南部区域生态系统服务较强,未来应在空间上促进生态系统服务协同发展。  相似文献   

Recreational angling markets to advance the conservation of a reach of the Western Ramganga River,India     

Mark Everard  Gaurav Kataria 《水产资源保护:海洋与淡水生态系统》2011,21(1):101-108

• 1. Mahseer fishes of the genus Tor are ‘iconic species’ in Indian rivers, representing ‘flagship’ species for conservation purposes but with additional exploitable, cultural and economic values. Conservation action is required to address their vulnerability to numerous pressures on multiple habitats, and connections between them, across the extended aquatic ecosystems supporting different life stages.
• 2. Recreational angling for mahseer, along with associated wildlife and cultural tourism, is a growth industry dependent upon healthy river ecosystems.
• 3. A cyclic, ecosystem‐based model in which local people can benefit economically from sustainable mahseer exploitation through catch‐and‐release fisheries can form a basis for conservation of both mahseer and the wider river ecosystem.
• 4. Experience on the Western Ramganga River in the vicinity of the town of Bikhyasen, Uttarakhand State (in the Himalayas in northern India), demonstrates the importance of involving local people in the benefits associated with angling, wildlife and cultural tourism. This creates local incentives for river protection, and may be the most effective means for preventing destructive over‐exploitation in poor rural communities.
• 5. Recognition of this value and its recirculation to local people can form the basis for a ‘paying for ecosystems services’ (PES) market. This will benefit river ecosystems, local people, tour operators and visiting anglers, provided that local people benefit to a greater extent than through the killing of fish for non‐renewable consumption or sale.
• 6. This is the basis for a potentially transferable model which may support regional development through involving local people in markets for iconic species. Copyright © 2010 John Wiley & Sons, Ltd.

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