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检索条件"任意字段=第四届国际计算机与计算技术在农业中的应用研讨会"

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Extracting Winter Wheat Planting Area Based on Cropping System with Remote Sensing

Extracting Winter Wheat Planting Area Based on Cropping Syst...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Xueyan Sui Xiaodong Zhang Shaokun Li Zhenlin Zhu Bo Ming Xiaoqing Sun Institute of Agriculture Sustainable Development/Shandong Academy of Agriculture Sciences Institute of Crop Sciences Chinese Academy of Agriculture Sciences/ Key Laboratory of Crop Physiology and Production Ministry of AgricultureChina

Winter wheat is one kind of important crop in ***'s planting area is one key element to explain yield *** obtain winter wheat planting area as soon as possible can provide scientific reference for our country's making related *** on the cropping system in Shandong province,winter wheat is divided into two kinds "winter wheat sowed by machine-maize" and "people broadcast winter wheat-rice".Using MODIS data,NDVI characters of winter wheat,garlic,greenhouse vegetable,from sowing till overwintering stage were *** with NDVI characters of former stubble crops in middle September,extracting requirements were set up for winter wheat planting area which was sowed by machine this *** view of the spectrum similarity between rice wheat and greenhouse vegetable from sowing stage till overwintering stage,rice wheat planting area of former year was extracted relying on the character of biomass rapid growth at jointing *** of the "people broadcast winter wheat-rice" cropping system is very fixed in Shandong province,then the rice wheat planting area of former year can take the place of the rice wheat planting area this *** kinds of winter wheat area were merged,and tested by 284 groups of located spots data,the accuracy reached94.01%.The result showed that it is feasible to extract winter wheat area before overwintering stage,and the time is 4 months earlier than using jointing stage NDVI.

关键词： Shandong province winter wheat rice wheat area remote sensing

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Research of Evaluation on Cultivated Land Fertility in Xinjiang Desert Oasis Based on GIS Technology——Taking No.22 State Farm as the Example

Research of Evaluation on Cultivated Land Fertility in Xinji...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Ling Wang Xin Lv Hailong Liu Department of Geography Teachers CollegeShihezi University Key Laboratory of Oasis Ecological Agriculture of Xinjiang Production & Construction Corps(XPCC) Shihezi University College of Water Conservancy Construction Engineering Shihezi University

This paper,with No.22 State Farm,Agricultural Division No.2,XPCC as the example and under support of GIS,takes cultivated land plot as the evaluation unit and chooses 13 influence factors from five aspects of nutrient of cultivation layer,physical and chemical properties of cultivation layer,soil management,climate conditions and obstacle factor to establish desert oasis cultivated land fertility evaluation system and *** the basis of a great quantity of information related to cultivated land fertility through field sampling and laboratory analysis,and supported by GIS,the papers takes advantages of mathematics method and mathematical model such as hierarchical analysis process and fuzzy comprehensive evaluation process to realize automatic and quantitative evaluation on cultivated land fertility,analyze area statistics and distribution characteristics of cultivated land fertility at different levels and main attribute of cultivated land at various classes in State Farm No.22,and give analysis of the space *** show that cultivated land in state farm No.22 can be divided into six classes,of which Class 1 Land IFI(integrated fertility index) is 0.74-1.00,area 3788.11 hm2,accounting for 7.67%of the total area;Class 2- Class 6 Land for36.45%,43.47%,12.32%,0.089%and0.0001%of the total area *** results are of significance in guiding local cultivated land quality management and promoting construction of new rural area.

关键词： Geographical information system(GIS) Cultivated land fertility Desert oasis

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Delineation of Suitable Areas for Maize in China and Evaluation of Application for the Technique of Whole Plastic-Film Mulching on Double Ridges

Delineation of Suitable Areas for Maize in China and Evaluat...

引用

第四届国际计算机与计算技术在农业中的应用研讨会

作者： Chaojie Jia Wenlong Zhao Yaxiong Chen Guojun Sun MOE Key Laboratory of Arid and Grassland Ecology Lanzhou University

Climate,topography,soil and land use data which closely associated with the distribution of maize（Zea mays L.） has been collected and collated to identify the suitable areas for maize on condition of nature and using the technique of whole plastic-film Mulching on Double Ridges in China,the database of these factors have been created in the current *** weights of these factors,criteria and suitability levels have been defined using Multi-Criteria Evaluation（MCE） approach based on Geographic Information System（GIS）,each factor was classed into five suitability levels:Most suitability,Moderate suitability,and medium,Moderate unsuitability and ***-wise comparison matrixes were made to get the weights of each factor,the suitability maps of the factors have been obtained by overlaying these layers according to their weights,got the suitability map for *** suitable areas map was created by the suitability map and the land use map which has been masked the non-cultivated *** result indicated that the higher yield of maize can be gained from 4.535×10～5 km which distributed in 741 counties inl6 *** accordance with the method of above,analysis the suitable area after the techniques of whole plastic-film mulching on double ridges was *** results showed the higher yield could be got in 6.145×10～5 km,some areas of Gansu,Inner Mongolia and other places in arid and semiarid areas that can't distribute or only have low yield maize could get higher yield after using the technique of whole plastic-film mulching on double *** the increased requirement of food,the new techniques and the more perfect regional planning of grain could be take into account for socio-political and environment issues.

关键词： Multi-Criteria Evaluation(MCE) Spatial analysis whole plastic-film mulching on double ridges Geographic information system(GIS)

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An Analysis on the Inter-annual Spatial and Temporal Variation of the Water Table Depth and Salinity in Hetao Irrigation District,Inner Mongolia,China

An Analysis on the Inter-annual Spatial and Temporal Variati...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Jun Du Peiling Yang Yunkai Li Shumei Ren Xianyue Li1Y ong Xue Lingyan Wang Wei Zhao College of Water Conservancy and Civil Engineering China Agricultural University Bureau of Ningxia Farm

Long-term Yellow River irrigation and the unique natural conditions in the Heitao Irrigation District(HID) Inner Mongolia,China,has led to serious environmental problems such as the shallower groundwater table and soil secondary salinization,*** conflicts among socio-economic development,water shortage and environmental degradation have become increasingly *** using the statistical methods,geo-statistical methods and ArcGIS9.0,we analyze the temporal and spatial variation of depth to water table(DWT) and groundwater salinity in the three different irrigation seasons in 2001,2002 and2003 *** results show that DWT and groundwater salinity has formed a ribbon distribution after the long-term Yellow River *** is medium spatial correlative and the average spatial autocorrelation distance is18.5km;the groundwater salinity is strong spatial correlative and the average spatial autocorrelation distance is *** inter-annual distribution of DWT and groundwater salinity in 2001 is quite similar with it in 2002 and *** DWT in western area,eastern area and a small part of middle area are shallower than other area in *** average DWT in March reached maximum and its minimum is in November each *** are two high salinity degree zones(M>5000mg/1 and even some other M>30000mg/1).The shallower groundwater salinity in the southeast and northwest are higher than that of in the middle part of *** shallower water table depth is,the higher the salinity of groundwater will be;the deeper water table depth is,the lower the salinity of groundwater will be.

关键词： Hetao Irrigation District Depth water table groundwater salinity spatial and temporal variation

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Research and Application of Cultivation-SimulationOptimization Decision Making System for Rapeseed(Brassica napus L.)

Research and Application of Cultivation-SimulationOptimizati...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Hongxin Cao Chunlei Zhang Baojun Zhang Suolao Zhao Daokuo Ge Baoqing Wang Chuanbao Zhu David B.Hannaway Dawei Zhu Juanuan Zhu Jinying Sun Yan Liu Yongxia Liu Xiufang Wei Institute of Agricultural Resources and Environment Research/Engineering Research Center for Digital Agriculture Jiangsu Academy of Agricultural Sciences Institute of Oil Crops Research Chinese Academy of Agricultural Sciences Northwest Sci-Tech University of Agriculture and Forestry Liaocheng Municipal Agric Technology Extension Station College of Agricultural Sciences Oregon State University Agricultural Technological Extensive Station of Luntai County

The objectives of this study were to develop Rapeseed Cultivation Simulation-Optimization-Decision Making System(Rape-CSODS),and validate it in order to design rapeseed planting,regulate and control its growth and development,and fulfill its high yield,good quality,high benefits,and standard production *** models in Rape-CSODS were developed based on field experiments with 3 cultivars,2 plant types,6 sowing dates,and 4 sites from2002 to 2008 in the middle and lower valley of Yangtze river in China and relative data from references of rapeseed research,employed ideas of RAVCSODS(Rice/Wheat Cultivation Simulation-Optimization-Decision Making System),then Rape-CSODS were developed through integrating rapeseed growth models,optimization models,and expert *** that the rapeseed growth models mainly included phenophase,leaf age,population dynamic,and organ forming etc.,and the optimization models for rapeseed cultivation mainly included the optimum biomass,the optimum LAI,the optimum shoot and ramification number dynamics models,and the optimum decision making models for nitrogen and water *** a case,the system has been applied in Shandong Province in this study,and the results showed that the scheme get by this systems can increase green leaf number before over-winter,1.1;1000-weight,0.2g;and rapeseed yield,676.5 kg ha"1 at mature,comparing with rapeseed production in the same *** Rape-CSODS with general adaptability,clear yield aim,better mechanism,and dynamic characteristic can get the optimum management sheet pre-planting,micro-adjustment sheet during growth for rapeseed under different climates,soil,cultivars,and yielding levels.

关键词： Rapeseed Cultivation Growth Models Optimization Models Decision Making System Research and Application

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国内外专家关注农业信息技术创新 A02

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江西日报

作者：李文亭

本报讯（记者李文亭）10月23日至24日，爱尔兰皇家科学院、美国伊利诺伊大学、以色列理工大学、中国科学院等国内外专家汇聚南昌，参加第四届国际计算机及计算机技术在农业中的应用研讨会和第一届国际智能无损检测与信息处理技术学术研...

本报讯（记者李文亭）10月23日至24日，爱尔兰皇家科学院、美国伊利诺伊大学、以色列理工大学、中国科学院等国内外专家汇聚南昌，参加第四届国际计算机及计算机技术在农业中的应用研讨会和第一届国际智能无损检测与信息处理技术学术研讨会，深入探讨农业信息领域的发展趋势，?

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Research on the Theory and Methods for Similarity Calculation of Rough Formal Concept in Missing-Value Context

Research on the Theory and Methods for Similarity Calculatio...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Wang Kai Li Shao-Wen Zhang You-Hua Liu Chao School of Information and Computer Science Anhui Agricultural University

ISBN: (纸本)9783642183355

In this paper,for the low similarity computation accuracy of concept in the field of agriculture ontology mapping,formal concept analysis theory and rough set theory are introduced to similarity *** considering attribute hierarchies in concept lattice,the semantic hierarchy of the concepts are weighted differently,and the theory and methods of similarity calculation of rough formal concept in missing-value context is ***,similarity computing model is *** results show the model has a high computational accuracy.

关键词： Research on the Theory and Methods for Similarity Calculation of Rough Formal Concept in Missing-Value Context Concept

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Towards Developing an Edible Fungi Factory HACCP MIS Base on RFID Technology

Towards Developing an Edible Fungi Factory HACCP MIS Base on...

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Computer and Computing Technologies in Agriculture IV——4th IFIP TC 12 Conference(CCTA2010) Part III

作者： Wang Yunsheng Xu Shipu Wan ChangZhao Cheng Jihong Guo Qian Yang Juan Zhao Jingying Technology & Engineering Research Center for Digital Agriculture Shanghai Academy of Agricultural Sciences Shanghai Finc Bio-tech Inc Institute of Edible Fungi Shanghai Academy of Agriculture Sciences

ISBN: (纸本)9783642183539

According to the low yield of edible fungus and the poor quality of edible fungi in factory,the production management situation in edible fungi factory was *** the solution of edible fungi factory HACCP(Hazard Analysis Critical Control Point) MIS(management information system) based on RFID(Radio Frequency Identification) technology was *** fungi production process by the hazard analysis to determine the raw materials,burden mix materials and bottling,inoculation,culture,and growth as the critical control *** each critical control points,respectively,to develop appropriate critical limits,clearly defined monitoring objects,methods,frequency and corrective measures,critical control point of information collection for the use of RFID *** the implementation of HACCP MIS,edible fungi yield and quality have improved.

关键词： edible fungi factory HACCP MIS RFID

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Image-Driven Panel Design via Feature-Preserving Mesh Deformation

Image-Driven Panel Design via Feature-Preserving Mesh Deform...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Baojun Li Xiuping Liu Yanqi Liu Ping Hu Mingzeng Liu Changsheng Wang School of Automotive Engineering Faculty of Vehicle Engineering and MechanicsState Key Laboratory of Structural Analysis for Industrial EquipmentDalian University of Technology School of Mathematical Sciences Dalian University of Technology

In this paper,we propose an image-driven 3D modeling technique for rapid panel *** semi-automatic approach is based on template technique and mesh volume deformation controlled by a special *** designed our modeling system to be interactive in 2D,automating the process of shape generation while relying on the user to provide image *** a parametric model template is given,using the contour extracted from images,the new control cage corresponding to mesh models *** the geometry of new panel is automatically recovered from the deformable template *** system also allows the user to easily reconstruct other 3D objects in a similar manner,such as realistic-looking plant modeling from *** show realistic reconstructions of a variety of panels,automobile shapes and demonstrate examples of plant editing.

关键词： Image-driven Mesh deformation Panel Design Deformable template

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Study on Vegetable Field Evaluation Index System for Non-Point Source Pollution of Dagu River Basin

Study on Vegetable Field Evaluation Index System for Non-Poi...

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第四届国际计算机与计算技术在农业中的应用研讨会

作者： Jinheng Zhang Junqiang Wang Yongliang Lv Jianting Liu Dapeng Li Zhenxuan Yao Xi Jiang Ying Liu Institute of Eco-environment & Agriculture Information School of Environment and Safety EngineeringQingdao University of Science and Technology Qingdao Station for Popularizing Agricultural Techniques

This research combined data from soil,terrain and meteorological surveys,with quantitative data from soil and water field studies to determine the leaching processes of nitrogen and phosphorus contaminants from field vegetation into the Dagu *** the Gray correlation analysis method,precipitation and irrigation were established as the major driving force behind leaching losses from cultivated *** type of fertilizers used,and the chemical and physical properties(porosity and bulk density) of soils in the region were set as parent *** values of nitrogen and phosphorus concentration were calculated from soil and water ***,the depth of core samples was factored into the *** result showed that the supply of soil nitrogen and phosphorus,which were mainly derived from fertilizers,were not generally high levels in *** to fuzzy association degree,this investgation confirmed main influencing factors which affected COD,total nitrogen,total phosphorus of soil and groundwater,ammonia nitrogen and nitrate nitrogen of groundwater *** according to these factors the initial vegetable field evaluation index system for non-point source pollution of Dagu River basin was constructed.

关键词： Gray correlation analysis Nitrogen Phosphorus COD Precipitation Soil physical properties Soil type Index system

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