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四六级作文句子 8p
doc四六级作文句子
四六级作文句子整理,为四六级作文加分的句子,汉语反译,好句模型。
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  • 2010-08-05 23:00|
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英语四六级分类词汇 17p
doc英语四六级分类词汇
英语四六级分类词汇整理,按照各个话题类型分类,适合大家学习的一份好的资料。
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  • 2010-08-05 22:59|
  • 15|
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第五讲 地图是如何组成的 Map 49p
ppt第五讲 地图是如何组成的 Map
GIS设计与开发研究方向课件
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  • 2010-08-05 22:53|
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第四讲 ArcEngine的控件 83p
ppt第四讲 ArcEngine的控件
GIS设计与开发研究方向课件
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  • 2010-08-05 22:52|
  • 8|
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第三讲 用户界面定制——VBA开发 54p
ppt第三讲 用户界面定制——VBA开发
GIS设计与开发研究方向课件
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  • 2010-08-05 22:52|
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ArcEngine的基本原理——对象组件模型 48p
pptArcEngine的基本原理——对象组件模型
本文档首先介绍了ArcGIS整体架构,接下来介绍了ArcEngine与ArcObject的关系与区别,然后介绍了ArcEngine的体系结构及对象组件模型,最后介绍了ArcGIS的二次开发及ArcEngine在VB或.NET环境中的应用实例。
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  • 2010-08-05 22:51|
  • 9|
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GIS程序设计 9p
pptGIS程序设计
本文档对《GIS程序设计》课程进行了简明扼要的介绍,首先介绍了本课程的目的及要求,接下来介绍了本课程使用的教材及教学方法,然后介绍了本课程的学习方法及考核方式,最后介绍了软件开发环境。
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  • 2010-08-05 22:47|
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Studies on Construction of Rice Pests Multifactor Spatial Overlay Mode 6p
docStudies on Construction of Rice Pests Multifactor Spati..
Abstract—Pests have been greatly damaging the rice yield in Guangdong Province, China in recent year. Traditional pests warning models, based on the mathematical statistics, only considering the relation between weather and monitoring data factors, are limited in large place. As a result, multi-factor spatial overlay model was construction to research the damage of Cnaphalocrocis medinalis in Guangdong Province. The factors include the Cnaphalocrocis medinalis situation, crop condition, and external environment data. By using the GIS technology, the model can make the thematic maps of Cnaphalocrocis medinalis damage in different time. The result can reproduce the spatio-temporal change of Cnaphalocrocis medinalis in Guangdong Province, as well as offer scientific support on prevention of rice pests.
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  • 2010-08-05 10:58|
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A method for Land Surveying Sampling Optimization Strategy 5p
docA method for Land Surveying Sampling Optimization Strat..
Abstract—At present, how to select a limited but representative sample dataset from the existing land information database to guide the new round of land survey and assessment sampling is a critical issue for land sampling strategy study. As a case study to determine and analyze the sample capacity and sample spatial location of land survey sampling for the study area, Panyu District in Guangzhou, the paper developed the strategy based on the combination of classical sampling technique and geographical model under a certain confidence level and estimation accuracy requirement, and the performance of the sampling strategy was then evaluated by the Global Geary´s C and the Quick-BP neural network model respectively. The test result showed that, compared with traditional c-means clustering sampling method, the accuracy of the sampling prediction based on local Moran index spatial clustering sampling method was increased by 13.57% which abstracted better the land information in the database.
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  • 2010-08-05 10:55|
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Dynamic Land Use Change in Rapidly Urbanizing Region 6p
docDynamic Land Use Change in Rapidly Urbanizing Region
Abstract—Land use change (LUC) model is fundamental in decision making process for regional sustainable development. It is practically important to analyze LUC in rapidly urbanizing region, such as Panyu District of Guangzhou, China, where a fast economy development makes it necessary to study the rule of urban land use change. Taking time-spatial land use change as the key point, a case study is carried out to analyze the land use change process, based on the land use data of 1996, 2005, and 2009. The transformation matrix of land use is calculated to show the spatial pattern and reveal the spatial change process of land use between 1996 and 2009. A multi-logistic regression model which takes five dependent factors is adopted to analyze the land use change process and predict the land use change tendency and proven to be feasible and efficient. This study may provide a guide to future research in land use change.
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  • 2010-08-05 10:53|
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Simulation of Land Usecover Change Based on the CLUE-S Model 5p
docSimulation of Land Usecover Change Based on the CLUE-S..
Abstract—Qingxin County is a typical transition area between the Pearl River Delta and north Guangdong. To explore the ideal land use pattern of Qingxin County, this article simulates the county´s land use/cover changes based on the CLUE-S (the Conversion and Land Use and its Effects) model. The relation between land use changes and its driving factors are studied by analyzing static and dynamic factors in the simulation process. Besides, the spatial distribution of land use of Qingxin County in 2020 is predicted with the statistical and scenario analysis methods, and the results under different scenarios are plotted into simulated land cover maps. Compared with the land use of 2007, the environmental, economic and social consequences resulting from the simulated land use/cover changes in 2020 indicate that the simulation under the full-sided development goals, is more in line with Qingxin County´s actual conditions, and also has greatly practical significance in land use.
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  • 2010-08-05 10:34|
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基于协调度模型的经济快速发展区城镇土地集约利用评价(GeoInformatics2010论文) 9p
doc基于协调度模型的经济快速发展区城镇土地集约利用评价(GeoIn..
以广州市番禺区为例,进行了研究区城镇土地集约利用协调发展驱动机制探讨。结果表明:研究区城镇土地集约度为0.3389,属于基本集约利用方式;经济、社会和生态系统协调度为0.1307,处于严重失调状态;经济、社会和生态系统协调发展度为0.2546,属于中度失调衰退经济驱动类型;各镇街城镇土地集约度、协调度、协调发展度和集约度协调发展驱动机制空间分异显著。
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  • 2010-08-05 09:40|
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Using a Coordination Degree Model to Evaluate Intensive Urban Land Utilization 5p
docUsing a Coordination Degree Model to Evaluate Intensive..
Abstract—Rapid economic and social development has led to significant regional land use changes in depth and breadth. There is a strong and urgent need to explore and understand the driving forces and mechanisms behind coordinated development of intensive urban land use, especially in rapid urbanization regions, and examine the degree of coordination development among different systems or sectors. In this paper, we took Panyu District of Guangzhou City, China as an example, and applied the principle of coordination degree model to explore the driving mechanisms of coordinated development of intensive urban land use. Results indicate that Panyu is in the base intensive use stage with an urban land use intensity index of 0.3389. The region is seriously imbalanced among economic, social, and ecological systems because their coordination index was only 0.1307. Coordinated development index among economic, social, and ecological systems was 0.2546, placing it to the moderately im
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  • 2010-08-05 09:29|
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番禺区城镇土地集约利用综合评价 50p
doc番禺区城镇土地集约利用综合评价
选取番禺区为例,基于番禺区第二次土地调查成果数据进行了城镇土地集约利用综合评价。具体研究内容包括:城镇土地集约利用评价指标体系的构建;城镇土地集约度分析;城镇土地集约利用协调度和协调发展度分析。
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  • 2010-08-05 09:16|
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湛江市交通体系规划 26p
doc湛江市交通体系规划
湛江市交通体系规划
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  • 2010-08-04 00:04|
  • 9|
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湛江港口及岸线利用规划 20p
doc湛江港口及岸线利用规划
湛江港口及岸线利用规划
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  • 2010-08-03 23:58|
  • 3|
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湛江市城市景观风貌和园林绿地系统规划 16p
doc湛江市城市景观风貌和园林绿地系统规划
湛江市城市景观风貌和园林绿地系统规划
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  • 2010-08-03 23:56|
  • 15|
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湛江市市政基础设施工程及综合防灾规划 35p
doc湛江市市政基础设施工程及综合防灾规划
湛江市市政基础设施工程及综合防灾规划
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  • 2010-08-03 23:54|
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湛江市工业布局规划 5p
doc湛江市工业布局规划
湛江市工业布局规划
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  • 2010-08-03 23:52|
  • 5|
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湛江市环境保护规划 13p
doc湛江市环境保护规划
湛江市环境保护规划
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  • 2010-08-03 23:50|
  • 10|
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湛江市生态环境保护与建设研究 23p
doc湛江市生态环境保护与建设研究
湛江市生态环境保护与建设研究
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  • 2010-08-03 23:46|
  • 2|
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湛江港发展研究 18p
doc湛江港发展研究
湛江港发展研究
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  • 2010-08-03 23:43|
  • 8|
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湛江港口发展与海岸线综合开发利用研究 17p
doc湛江港口发展与海岸线综合开发利用研究
湛江港口发展与海岸线综合开发利用研究
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  • 2010-08-03 23:40|
  • 7|
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湛江市城市空间发展战略研究 25p
doc湛江市城市空间发展战略研究
湛江市城市空间发展战略研究
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  • 2010-08-03 23:36|
  • 7|
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湛江市城市总体规划环境影响评价报告 58p
doc湛江市城市总体规划环境影响评价报告
湛江市城市总体规划环境影响评价报告
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  • 2010-08-03 23:33|
  • 13|
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