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随着我国城镇化水平的提高,农村居民点用地与耕地、城市建设用地的矛盾日益突出.在综述农村居民点土地整理研究现状的基础上,结合国家农村建设用地标准对德州市农村居民点用地潜力进行了测算,对居民点土地整理的效益进行了评价,并对德州市合村并居中农村居民点土地整理提出了建议. 相似文献
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济南市农村居民点用地分析及节约利用对策 总被引:3,自引:1,他引:3
随着城市化水平的提高以及城市规模的扩大,耕地日趋减少,城市用地需求量不断增加,用地矛盾加剧。通过对济南市农村居民点用地现状分析,指出了农村居民点用地存在的问题,土地利用程度低、土地资源浪费是农村居民点用地普遍存在的现象。在当前建设节约型社会的形势下,从提高土地利用程度等方面提出了节约用地的措施,指出平原地区是今后土地利用的重点;采取合理的经济措施,是解决农村居民点用地流转的新途径。 相似文献
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《资源开发与市场》2017,(3)
基于山东省农村居民点整理项目的实地调查,以晏城镇李官社区和康驿镇康达社区为例进行模式分析和政策优化设计,为农村居民点整理工作改进提供参考。结果表明:1农村居民点整理模式主要包括组织运作、空间布局、资金筹集和利益分配四个维度;2农村居民点整理的具体模式虽然略有差别,但地方政府在整治工作中的作用不容忽视;3山东省农村居民点整理存在着组织运作模式的运行主体单一、空间布局模式的未来考量不足、资金筹集模式的来源渠道有限、利益分配模式的配置失衡等问题。基于这些问题,进一步提出围绕模式的四个维度进行优化,即成立组织运作的三级指标交易机构、开展拆旧安置的空间动态置换、推动资金筹集的迭代补偿、建立市场机制下的利益分配。 相似文献
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基于Markov模型的南京土地利用时空变化研究 总被引:1,自引:0,他引:1
利用江苏2000年、2008年遥感数据,采用ArcGIS和Excel测算出南京市辖区8年土地利用的Matkov转移矩阵,从数量、空间和结构角度分析2000-2008年的土地利用变化状况,预测2016年的各类用地面积.结果表明,2000-2008年研究区的城镇和工矿交通用地扩张较快,农村居民点用地略有减少,呈集中态势;耕地、草地、林地、水域减少,未利用地减幅最大.在空间上,研究区的建设用地扩张由"同心圆状"变为"纺锤状",土地利用集中度和强度都增大.2016年预测显示,城镇用地比重达44.76%,耕地减少23.47%,其余用地基本保持前8年的变化趋势,但动态度有所减小,仅农村居民点用地减幅增大. 相似文献
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城镇建设用地需求预测与配置研究 总被引:11,自引:0,他引:11
针对我国现行城镇建设用地预测方法存在的问题,对城镇建设用地预测方法进行了探索性研究;通过构建科学的建设用地需求预测方法,为土地利用规划提供科学依据。在C—D生产函数的基础上,提出了土地、资本与产出GDP的要素关系模型、恩格尔系数与人均建设用地面积关系模型和时间序列的ARIMA建设用地模型。对成都市城镇建设用地总量进行了实证分析,对4种预测方法的结果进行了定量评价,并据此提出成都市建设用地的配置方案。 相似文献
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九华山风景名胜区是山岳型宗教旅游地。通过对九华山风景区的实地调查,总结了该类旅游地的土地利用特点,即统一性和协调性、难以变更性、总量有限性,并进行了土地利用沿革、变更和影响方面的分析。利用层次分析法从生存指标、发展指标、社会指标、环境指标和智力指标5个方面对九华山风景区的土地利用进行了定量讨论,认为九华山风景区土地利用问题现阶段主要集中在九华街景区、花台景区和柯村景区。在此基础上,对九华山风景区土地的可持续利用提出了相应的对策。 相似文献
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Analysis of arable land loss and its impact on rural sustainability in Southern Jiangsu Province of China 总被引:2,自引:0,他引:2
Rapid urbanization and industrialization in southern Jiangsu Province have consumed a huge amount of arable land. Through comparative analysis of land cover maps derived from TM images in 1990, 2000 and 2006, we identified the trend of arable land loss. It is found that most arable land is lost to urbanization and rural settlements development. Urban settlements, rural settlements, and industrial park-mine-transport land increased, respectively, by 87 997 ha (174.65%), 81 041 ha (104.52%), and 12 692 ha (397.99%) from 1990 to 2006. Most of the source (e.g., change from) land covers are rice paddy fields and dryland. These two covers contributed to newly urbanized areas by 37.12% and 73.52% during 1990–2000, and 46.39% and 38.86% during 2000–2006. However, the loss of arable land is weakly correlated with ecological service value, per capita net income of farmers, but positively with grain yield for some counties. Most areas in the study site have a low arable land depletion rate and a high potential for sustainable development. More attention should be directed at those counties that have a high depletion rate but a low potential for sustainable development. Rural settlements should be controlled and rationalized through legislative measures to achieve harmonious development between urban and rural areas, and sustainable development for rural areas with a minimal impact on the ecoenvironment. 相似文献
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The impact of land use and land cover changes on land surface temperature in a karst area of China 总被引:3,自引:0,他引:3
Satellite images have been used extensively to study temporal changes in land use and land cover (LULC) in China. However, few studies have been conducted in the karst areas despite the large area and population involved and the fragile ecosystem. In this study, LULC changes were examined in part of Guizhou Province of southern China from 1991 to 2001 based on Landsat Thematic Mapper (TM) images of November 7, 1991, December 5, 1994, and December 19, 2001. Land surface temperature (LST) and normalized difference vegetation index (NDVI) were computed based on LULC types. The results show that agricultural land decreased, while urban areas expanded dramatically, and forest land increased slightly. Barren land increased from 1991 to 1994, and then decreased from 1994 to 2001. These changes in LULC widened the temperature difference between the urban and the rural areas. The change in LST was mainly associated with changes in construction materials in the urban area and in vegetation abundance both in the urban and rural areas. Vegetation had a dual function in the temperatures of different LULC types. While it could ease the warming trend in the urban or built-up areas, it helped to keep other lands warmer in the cold weather. The study also reveals that due to the government's efforts on reforestation, rural ecosystems in some of the study area were being restored. The time required for the karst ecosystem to recover was shorter than previously thought. 相似文献
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Remote sensing data in the form of Landsat computer compatible tapes (CCT) was used to determine land use and land cover as an aid in hydrologic studies that were used to estimated a basinwide runoff index. With the use of the General Electric Image 100 multispectral image processing system in conjunction with the Earth Resources Laboratory Application Software (ELAS), CCT's on February 9, 1976, were analyzed by spectral differences to determine unique land use conditions within the Econlockhatchee (Econ) River Basin, Florida. The result showed that the Landsat data can be successfully used to monitor the USGS land use Level 1. An advantage of using the Landsat data for land use classification is that new data are periodically available for updating the land use information. The Soil Conservation Service curve number was used to establish a basinwide runoff index which includes a prime variable of land use changes with the time. The basinwide runoff index in 1972 (with USGS 1972 Land Use maps) was similar to the one in 1976 (with Landsat data dated February 9, 1976). This implies that the runoff from the entire Econ Basin was not noticeably changed during the period of 1972 and 1976. 相似文献
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The Spatio-Temporal Dynamic Pattern of Rural Residential Land in China in the 1990s Using Landsat TM Images and GIS 总被引:2,自引:0,他引:2
Through interpreting Landsat TM images, this study analyzes the spatial distribution of rural settlements in China in 2000.
It calculates rural residential land percentage for every 1-km2 cell. The entire country is divided into 33 regions to investigate the spatio-temporal dynamic patterns of rural residential
land during the 1990s. According to the remote sensing survey, the rural residential land increased by 7.88 × 105 ha in the 1990s. The increment of rural residential land was 0.55 million ha in 1990–1995 and 0.23 million ha in 1995–2000.
In 1990–1995, rural residential land increased dramatically in the eastern regions such as the Yangtze River Delta, Pearl
River Delta, and North China Plain, accounting for 80.80% of the national growth; the expansion in the western regions was
much more moderate. In 1995–2000, the expansion of rural residential land in eastern regions slowed, accounting for only 58.54%
of the increase at the national level, whereas the expansion in the western regions accelerated. Rapid rural residential development
resulted from increasing home construction and the limited control on rural land. The great regional disparity reflected the
regional economic development and land-use policy change. Our finding shows that nearly 60% of the rural residential area
came from cropland. 相似文献
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典型区耕地变化与GDP值变化的脱钩研究 总被引:3,自引:0,他引:3
研究目的:为了深入分析耕地占用与GDP值增长之间的关系,研究不同区域之间耕地数量变化与GDP值变化的差异性与相似性,有利于平衡耕地占用与GDP值增长之间的矛盾,同时有利于“状态-压力-响应”体系的研究。研究方法:主要是应用脱钩理论,引入了脱钩指数来分析不同区域各时点耕地数量变化与GDP值变化之间的关系,同时运用相关分析与回归分析的方法,确立了不同研究区耕地数量与社会经济指标之间的相关性,建立了耕地面积与GDP值的回归曲线。研究结论:耕地数量的变化与GDP值之间的关系因地域差异而表现不同,但是也存在一些相似点,即各个区域相对脱钩与绝对脱钩的年份基本一样;此外脱钩理论有利于进一步深化土地利用的研究。 相似文献