【摘 要】
:
By using digitized land use maps of Beijing in 1982, 1992 and 1997 and employing GIS spatial analysis techniques, this paper conducts an empirical study on the
【机 构】
:
Inst. of Geographic Sciences and Natural Resources Research,International Institute for Applied Syst
论文部分内容阅读
By using digitized land use maps of Beijing in 1982, 1992 and 1997 and employing GIS spatial analysis techniques, this paper conducts an empirical study on the spatial differentiation and spatial patterns of urban land use growth in Beijing in the period of 1982-1997. It is observed that urban land use growth in Beijing went beyond the control of urban planning, in terms of the extraordinary high growth rate and undesired spatial pattern. The rate of urban expansion after 1982, which was predominated by growth of industrial land, was extraordinary high compared to its historical period. While its growth centers have been actively shifting toward the northern part, rather than toward the southern and eastern parts as designated by the latest General Plan (1991-2010) of Beijing, its spatial pattern of urban land use growth in general was in distinct concentric sprawl, which seriously violated the General Plan of Beijing.
其他文献
目的 分析慢性硬化性颌下腺炎的临床病理特点及IgG4的表达,为临床诊断和治疗提供参考.方法 收集术后病理诊断为慢性硬化性颌下腺炎的病例9例,男性6例,女性3例,年龄51 ~77岁,中
目的 探讨根据维生素K环氧化物还原酶复合物亚单位1基因(VKORC1)和细胞色素P450酶2C9基因(cytochrome P-450 2C9,CYP2C9)评估患者使用华法林抗凝剂量的准确性.方法 收集临床
目的观察75岁以上心力衰竭患者氨基末端脑钠肽前体(NT-proBNP)与心功能的相关性。方法充血性心力衰竭患者280例为观察组与无心脏疾患者200例为对照组,采用心脏超声检测左室射
目的 探索降钙素原(PCT)在长期接受免疫抑制治疗的重症患者感染诊断中的价值.方法 前瞻性研究,连续纳入2008年1月至2009年12月北京协和医院ICU中伴有长期应用糖皮质激素或免
旅游者重游不仅是旅游业界关注的重要问题,也是旅游地开发与营销所关注的焦点.“汶川”地震发生后不久,通过实证调查,运用SPSS软件进行均值、因子和聚类分析,探索重游者前往
本文分析了中国体育用品“出口”转“内销”的时代背景、当前中国体育用品“出口”转“内销”的窘境及产生窘境的原因,提出了“出口”转“内销”的实施战略对出口型体育用品
全球金融危机爆发后,市场出现了恐慌性抛售和观望行为,金融市场上交易量迅速萎缩,市场交易活跃程度大大降低。在此环境下,各金融机构会计期末所采用的公允价值能否真实、客观
物联网的基本含义是:通过射频识别(Radio Frequency Identification,缩写RFID,以下同)、红外感应器、全球定位系统、激光扫描器等信息传感设备,按约定的协议,把任何物品与互
多资源项目调度中优化资源使用问题是在满足项目中活动之间的时序约束和资源约束条件下,使资源充分使用的调度方案.针对资源均衡使用的优化目标建立了非线性数学规划模型,利
The socio-economic attribute of geo-hazard made us distinguish it fiom the traditional engineering geology study. It will get more social benefit from the analy