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Effects of Relay Cropping of Corn on the Productivity and Quality of Flue-Cured Tobacco

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Effects of Relay Cropping of Corn on the Productivity and Qu...

Research Progress of Grassland Feed-animal Balance at Home and Abroad

作者： Guisu Zhou Xinhua Yin Yongmei Li Huanwen Yang Zhengxiong Zhao Peikuan Che Qizhang Cao Hong Zhao YongJie Wang Lei Xu College of Tobacco Science Yunnan Agricultural Univ. Dep. of Plant Sciences The Univ. of Tennessee College of resources and Environment Yunnan Agricultural Univ. Jianchuan Branch of Dali Tobacco Company

Relay cropping timing has been frequently reported to influence flue-cured tobacco(Nicotiana tabacum L.) production. However, the optimal planting time for a relay corn(Zea mays L.) crop on flue-cured tobacco fields is unknown in terms of tobacco health, yield, quality, and economic value. A field experiment was conducted with 10, 17, 24, and 31 d after flue-cured tobacco apex excision as the relay cropping timings of corn, and tobacco monoculture as the control at Chuxiong, Yunnan, China in 2010 and 2011. The five treatments were repeated three times in a randomized complete block design. The occurrence of brown spot(Alternaria alternata), plant biomass, plant N and K nutrition, yield, chemical composition, smoking quality, and economic value of flue-cured tobacco were affected by year. Relay cropping 17 d after tobacco apex excision resulted in better chemical composition and smoking quality. The incidence and severity index of brown spot, plant biomass, plant N and K nutrition, yield, chemical composition, smoking quality, and economic value of tobacco were not significantly affected by the relay cropping timing of corn, indicating that relay cropping of corn at a later growth stage of flue-cured tobacco has no negative effect on tobacco production while the relay corn crop may bring additional income to tobacco growers. In conclusion, if the production of relay corn is profitable, relay cropping of corn after flue-cured tobacco apex excision could become a recommended cropping system in Yunnan and other regions with similar environmental conditions.

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Asian Agricultural Research 2013年第12期5卷 73-76页

作者： Xiaohu MAI Yujuan ZHANG Yingjun ZHANG Shangli SHI Ding HUANG Yajun ZHANG College of Practaculture Science Gansu Agricultural University/Key laboratory of Grassland EcosystemMinistry of Education College of Animal Science and Technology China Agricultural University

Feed-animal balance is the key technique on the grassland ecosystem management,and attracts widespread attention in the *** studies have been conducted by former researchers,and most of their efforts were intended to keep the balance of ***,there are still much more issue needed to be studied in details on the face of grassland degeneration and animal husbandry sustainable *** author analyzed the feed-animal balance research progress,including the concept of stocking rate and its practical management techniques,especially on the stocking rate calculation *** addition,the social and economy effects on feed-animal balance were also discussed during the progress of improving the development of pastoral *** order to achieve feed-animal balance more effectively,it was concluded that the focus must be shift from only on animal number to the grassland quality,and it's necessary to strengthen market tax control.

关键词： Feed-animal balance Grazing capacity Herbage yield

全球变化背景下可持续的滨海旅游资源开发与管理

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自然资源学报 2012年第1期27卷 1-16页

作者：王芳朱大奎广东商学院资源与环境学院南京大学海岸与海岛开发教育部重点实验室 Department of Geography and environmental Management Faculty of EnvironmentUniversity of Waterloo

滨海旅游是最传统的、主要的旅游形式,也是现代旅游增长最快的领域,在国内外均具有举足轻重的地位。全球变化很可能是由人类活动引起,并且影响着旅游业的发展。旅游业通过使用交通运输系统尤其是航空旅行、旅游目的地住宿餐饮等活动排... 详细信息

滨海旅游是最传统的、主要的旅游形式,也是现代旅游增长最快的领域,在国内外均具有举足轻重的地位。全球变化很可能是由人类活动引起,并且影响着旅游业的发展。旅游业通过使用交通运输系统尤其是航空旅行、旅游目的地住宿餐饮等活动排放大量温室气体,对全球变化做出贡献。可持续滨海旅游以可持续的资源开发和管理为基础,在全球变化背景下,要达到这一目标,需要在滨海旅游模式与产品类型转变、旅游资源利用方式转变、利益相关者协作等方面对滨海旅游资源进行优化开发和有效管理:以绿色思维指导低碳旅游模式,发展生态旅游和替代性旅游等新型产品;提倡降碳减排、发展碳补偿和碳经济、制定碳排放标准、鼓励新型节油节能科技应用;鼓励社区参与,平衡利益相关者的收益和兴趣,尤其是探察当地社区居民、旅游者和政府工作人员对全球变化的看法、态度、责任感和共识。这些措施将在规划—管理—监督—评估动态模型中得到优化。

关键词：海洋学滨海旅游资源可持续旅游全球变化

Raw Gangue Filling Mining under Construction —A Case Study in China

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Engineering（科研） 2023年第3期15卷 176-195页

作者： Daqing Li Changxiang Wang Jinjie Xiao Wei Lu Baoliang Zhang Zongkai Li Xiaozhang Tong Huainan Emergency Management Bureau Huainan China College of Safety Science and Engineering Anhui University of Science and Technology Huainan China Shandong Lineng Liyan Mining Engineering Co. Ltd. Jining China College of Safety and environmental Engineering Shandong University of Science and Technology Qingdao China School of Architecture & Civil Engineering Liaocheng University Liaocheng China Shandong Energy Linyi Mining Group Co. Ltd. Wanglou Coal Mine Linyi China National Engineering Research Center for Coal Gas Control Huainan China

In order to recover the strip pillar coal resources, reduce the amount of gangue mountain and realize remediation of the goaf environment in the old mining area, the raw gangue filling mining technology was proposed. According to the previous practical experience, the feasibility of the implementation of raw gangue filling mining technology in the coal-pressed area was analyzed. Through the filling gangue compaction test, the deformation under different loading stages was obtained. Further, a reasonable prediction of the deformation beyond the experimental limited loading load was made based on the experimental results. Through the deformation source analysis of the whole process of gangue filling, the key factors for controlling deformation before, during, and after filling were determined. Additionally, the proportion of deformation during different stages was quantified. Considering the protection of surface buildings, mining fullness of the working face and mining technology, the production parameters of 1209 and 1210 filling working faces were preliminarily determined. Through numerical simulation, the rationality of mining scheme was verified. Based on the practice of 1209 working face and the key factors to control the deformation of gangue filling, the mining system and process in 1210 working face were optimized. According to the measured surface rock movement, raw gangue filling mining technology can meet the requirements of surface building protection level. Especially, this paper provides a method to quantitatively calculate the equivalent mining height (EMH) of raw gangue filling and its mining deformation, which has reference significance for old mining areas.

关键词： Coal Resource Recovery under Construction Raw Gangue Filling Mining Principle of Space-Time Control Filling system and Process Innovation

基于边缘计算的软件定义云制造和柔性资源调度研究

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Engineering 2023年第3期22卷 60-70页

作者：杨晨廖方茵兰舒琳王力翚沈卫明黄国全 School of Cyberspace Science and Technology Beijing Institute of TechnologyBeijing 100081China School of Computer Science and Technology Beijing Institute of TechnologyBeijing 100081China School of Mathematics and Computer Science Yan'an UniversityYan'an 716000China School of Economics and Management University of Chinese Academy of SciencesBeijing 100190China Department of Production Engineering KTH Royal Institute of TechnologyStockholm 10044Sweden State key Lab of Digital Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074China Department of Industrial and Manufacturing systems Engineering The University of Hong KongHong Kong 999077China

本研究的重点是在云制造环境中实现快速重构、实现灵活的资源调度、开发资源潜力以应对各种变化。因此,本文首先提出了一种新的基于云和软件定义网络(SDN)的制造模型——软件定义云制造(SDCM),该模型将控制逻辑从自动化硬件转移到软件... 详细信息

本研究的重点是在云制造环境中实现快速重构、实现灵活的资源调度、开发资源潜力以应对各种变化。因此,本文首先提出了一种新的基于云和软件定义网络(SDN)的制造模型——软件定义云制造(SDCM),该模型将控制逻辑从自动化硬件转移到软件上。这种转变意义重大,因为软件可以充当制造系统的“大脑”,并且可以轻松更改或更新以支持快速系统重新配置、运营和演进。随后,边缘计算被引入,以接近终端的计算和存储能力来补充云。另一个关键问题是管理由不同服务质量(QoS)要求的大量物联网(IoT)数据传输而导致的严重网络拥塞。基于SDCM的虚拟化和灵活的网络能力,本研究形式化了面向复杂制造任务集的时间敏感性数据流量控制问题,并考虑了子任务分配和数据路由路径选择。为了解决这一优化问题,提出了一种将遗传算法(GA)、Dijkstra最短路径算法和排队算法相结合的方法。实验结果表明,该方法能有效地防止网络拥塞,减少SDCM中的总通信延迟。

关键词： Cloud manufacturing Edge computing Software-defined networks Industrial Internet of Things Industry 4.0

美国宾夕法尼亚州绩效式路面养护维修需求案例分析（英文）

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Journal of Southeast University(English Edition) 2019年第2期35卷 242-251页

作者：郑育彬柏强陈琳 Bismark Agbelie 同济大学道路与交通工程教育部重点实验室上海201804 长安大学公路学院西安710064 Department of Civil and environmental Engineering The Catholic University of AmericaWashingtonDC 20064USA

以美国宾夕法尼亚州(Pennsylvania)州际公路系统为例,介绍了绩效式路面养护维修需求分析的理论、方法与应用.首先,介绍了路面资产管理的一般框架,建立了路面养护维修需求分析的一般模型,并充分考虑了在实际项目执行过程中的路段组合问题... 详细信息

以美国宾夕法尼亚州(Pennsylvania)州际公路系统为例,介绍了绩效式路面养护维修需求分析的理论、方法与应用.首先,介绍了路面资产管理的一般框架,建立了路面养护维修需求分析的一般模型,并充分考虑了在实际项目执行过程中的路段组合问题.然后,以美国Pennsylvania州际公路交通改善规划(STIP)和中长期规划(LRTP)为例,详细介绍了绩效式路面投资需求分析.案例结果显示,无资金约束分析可以帮助决策者了解路面养护维修规划的实际需求;有资金约束分析可以帮助决策者选择实际项目并清楚地了解未来路面的状况;均衡分析能够帮助决策者分析各种投资水平下的效果并作出正确投资水平决策.该案例所采用的绩效式路面养护维修需求分析方法可为发展中国家所借鉴.

关键词：路面养护维修需求分析绩效式表现模型建模

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生态环境大数据平台架构和技术初探

生态学杂志 2017年第3期36卷 824-832页

作者：赵芬张丽云赵苗苗邵蕊刘丽香赵海凤徐明中国科学院地理科学与资源研究所生态系统网络观测与模拟重点实验室北京100101 中国科学院大学北京100049 Department of Ecology Evolution and Natural ResourcesRutgers University

大数据技术的产生给海量生态环境数据的处理以及全球生态环境问题的监测和分析提供了新的思路。本文通过分析大数据的基本特征,对生态环境大数据的概念以及特征进行了简要阐述,并参考一般大数据的系统结构,从4个方面设计了生态环境大数... 详细信息

大数据技术的产生给海量生态环境数据的处理以及全球生态环境问题的监测和分析提供了新的思路。本文通过分析大数据的基本特征,对生态环境大数据的概念以及特征进行了简要阐述,并参考一般大数据的系统结构,从4个方面设计了生态环境大数据综合平台的总体构架:数据平台、基础设施平台、技术平台及应用服务平台。从数据获取、数据存储与管理、数据计算模式与系统和数据分析共4个模块详细阐述了生态环境大数据技术平台构建的关键技术。最后,针对生态环境大数据未来的发展,提出了的一些思考和建议。

关键词：生态环境大数据平台架构技术

半干旱草原型流域表层土壤饱和导水率传递函数及遥感反演研究

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土壤学报 2019年第1期56卷 90-100页

作者：黎明扬刘廷玺罗艳云段利民张俊怡周亚军 Scharaw Buren 内蒙古农业大学水利与土木建筑工程学院呼和浩特010018 内蒙古自治区水资源保护与利用重点实验室呼和浩特010018 Application Center for system Technologies Fraunhofer IOSB

为了进一步探究遥感与表层土壤导水率的联系,以内蒙古锡林河流域为研究区,对厚栗黄土、草甸沼泽土、荒漠风沙土、石灰性草甸砂土、淡黑土5种土壤类型下的表层土壤进行采样,测定其粒径组成、容重、有机质、饱和导水率等理化特征。使用Sax... 详细信息

为了进一步探究遥感与表层土壤导水率的联系,以内蒙古锡林河流域为研究区,对厚栗黄土、草甸沼泽土、荒漠风沙土、石灰性草甸砂土、淡黑土5种土壤类型下的表层土壤进行采样,测定其粒径组成、容重、有机质、饱和导水率等理化特征。使用Saxton、Cosby、Wosten三种土壤饱和导水率传递函数及非线性多元经验回归模型对点尺度上0～30 cm表层土壤每10 cm土层的饱和导水率进行拟合,并利用这些点的土壤参数均值进行验证,结果显示Saxton模型效果最好,拟合及验证结果与实测值的拟合系数R^2分别为0.985、0.988。在此基础上,利用Radarsat-2四极化后向散射数据将模型中的表层土壤参数均值进行了8 m精度的面尺度扩展,并对遥感影像研究区范围内表层土壤饱和导水率进行预测。研究表明,土壤传递函数可以很好地刻画半干旱草原型流域表层土壤的饱和导水率,且土壤传递函数的结果与模型中包含的参数个数并不存在直接联系,人类活动对研究区表层土壤的饱和导水率影响极大。

关键词：锡林河流域土壤传递函数饱和导水率遥感反演 Radarsat-2

Analysis of Overall Popularization of Low-Protein Diet

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Animal Husbandry and Feed Science 2019年第1期11卷 16-18页

作者： Ma Xianyong Tian Zhimei Deng Dun Li Zhenming Cui Yiyan Rong Ting Liu Zhichang Lu Huijie Wang Gang Chen Weidong Institute of Animal Science Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Livestock and Poultry Breeding and Nutrition/Guangdong Engineering Technical Research Center for Quality Safety Control and Evaluation of Livestock and Poultry Products

The shortage of protein feed resources and environmental pollution restrict the healthy and sustainable development of breeding industry,so it is imperative to promote low protein diet. Based on the current industry trends and national policies, this paper analyzes the background con-ditions, significance and specific measures of popularizing low-protein diets, in order to provide policy, theoretical and technical support for the im-plementation of low-protein diets throughout the year.

关键词： Low-protein diets Soybean meal Feed technology Breeding industry