生态学报
生態學報
생태학보
ACTA ECOLOGICA SINICA
2009年
11期
6266-6274
,共9页
城乡%土地景观%空间结构%遥感图像%地理信息系统
城鄉%土地景觀%空間結構%遙感圖像%地理信息繫統
성향%토지경관%공간결구%요감도상%지리신식계통
urban-to-rural area%landscape%spatial structure%RS%GIS
以哈尔滨市及东部郊区为对象,重点研究城乡土地梯度带的划分以及造成这种景观分异的内在机制,特别是对镶嵌在城市到乡村之间土地类型的数量变化,研究土地景观结构的特点.研究区范围东西35km,南北16km,在GIS平台上使用TM与SPOT卫星图像划分出东西2.5km,南北16km大小的14条等面积的连续梯度带,根据等面积梯度带的建筑密度和道路密度将研究区域划分为市区、近郊区、远郊区3个梯度区.应用计算机目视判读方法对研究区内进行了土地类型的识别及区划,利用GIS空间分析,计算了各种梯度带的内的不同土地类型的长度、面积.通过这些计算与分析研究了哈尔滨市及东部城乡之间不同梯度带的绿地景观空间结构特点,以绿地建设为核心,辅以城市景观结构及空间格局的特点,分析讨论不同城乡梯度带景观分异的成因.研究表明,区域道路密度和建筑物密度可以在一定程度上反应出城市化进程,据此将哈尔滨及东部城乡划分为市区、近郊区和远郊区;不同梯度区域有其各自的人文景观结构特点和绿地景观结构特点,讨论了造成这种梯度特征的内在机制,并对研究区域未来的城乡绿地及景观建设和可持续发展提出了建议.
以哈爾濱市及東部郊區為對象,重點研究城鄉土地梯度帶的劃分以及造成這種景觀分異的內在機製,特彆是對鑲嵌在城市到鄉村之間土地類型的數量變化,研究土地景觀結構的特點.研究區範圍東西35km,南北16km,在GIS平檯上使用TM與SPOT衛星圖像劃分齣東西2.5km,南北16km大小的14條等麵積的連續梯度帶,根據等麵積梯度帶的建築密度和道路密度將研究區域劃分為市區、近郊區、遠郊區3箇梯度區.應用計算機目視判讀方法對研究區內進行瞭土地類型的識彆及區劃,利用GIS空間分析,計算瞭各種梯度帶的內的不同土地類型的長度、麵積.通過這些計算與分析研究瞭哈爾濱市及東部城鄉之間不同梯度帶的綠地景觀空間結構特點,以綠地建設為覈心,輔以城市景觀結構及空間格跼的特點,分析討論不同城鄉梯度帶景觀分異的成因.研究錶明,區域道路密度和建築物密度可以在一定程度上反應齣城市化進程,據此將哈爾濱及東部城鄉劃分為市區、近郊區和遠郊區;不同梯度區域有其各自的人文景觀結構特點和綠地景觀結構特點,討論瞭造成這種梯度特徵的內在機製,併對研究區域未來的城鄉綠地及景觀建設和可持續髮展提齣瞭建議.
이합이빈시급동부교구위대상,중점연구성향토지제도대적화분이급조성저충경관분이적내재궤제,특별시대양감재성시도향촌지간토지류형적수량변화,연구토지경관결구적특점.연구구범위동서35km,남북16km,재GIS평태상사용TM여SPOT위성도상화분출동서2.5km,남북16km대소적14조등면적적련속제도대,근거등면적제도대적건축밀도화도로밀도장연구구역화분위시구、근교구、원교구3개제도구.응용계산궤목시판독방법대연구구내진행료토지류형적식별급구화,이용GIS공간분석,계산료각충제도대적내적불동토지류형적장도、면적.통과저사계산여분석연구료합이빈시급동부성향지간불동제도대적록지경관공간결구특점,이록지건설위핵심,보이성시경관결구급공간격국적특점,분석토론불동성향제도대경관분이적성인.연구표명,구역도로밀도화건축물밀도가이재일정정도상반응출성시화진정,거차장합이빈급동부성향화분위시구、근교구화원교구;불동제도구역유기각자적인문경관결구특점화록지경관결구특점,토론료조성저충제도특정적내재궤제,병대연구구역미래적성향록지급경관건설화가지속발전제출료건의.
Taking Harbin and the eastern suburb as study area, this paper targeted to the division of the land gradient zones in the region as well as the intrinsic mechanism causing the landscape differentiation. Specifically, this study focused on the characteristics of the landscape structure based on the quantity changes of the land types between the city and the rural areas. With a study scope of 35 km from east to west and 16 km from north to south, the study area was averaged into 14 continuous gradient zones of 2.5 km from east to west and 16 km from north to south. All the gradient zones were categorized into three groups of urban area, suburb area, and far-suburb area according to the construction and road density of the gradient zones.. Computer visual interpretation was used for the land type identification and regionalization, where the length and area for the land types in each gradient zone was calculated using GIS spatial analysis tools. Spatial structure characteristics of the green landscape for each gradients zone were studied for Harbin and the eastern suburbs regions based on the above calculations and analysis. Taking greenland construction as the core with consideration of the characteristics of urban landscape structure and spatial pattern, causes for landscape differentiation among varied gradients zones of different urban and suburb areas were further analyzed and discussed. Results showed that the regional road and building density, to a certain extent, reflects the process of urbanization of the local area, which was used as the criterion for dividing Harbin and the suburb areas into three categories of urban area, suburb area, and far-suburb area.Additionally, it is noticed that characteristics for humane landscape and green landscape varied from gradient zone to gradient zone. At last, the intrinsic mechanism of this kind of gradient characteristic was analyzed and discussed with some recommendation on the future construction of the greenland and the entire landscape for the study area as well as recommendation for local sustainable development.