期刊文献+
共找到1,387篇文章
< 1 2 70 >
每页显示 20 50 100
Evaluation of Economical and Intensive Use of Construction Land in a County Town:A case study of Wan’an County,Ji’an City
1
作者 YU Zhijie 《Journal of Landscape Research》 2024年第1期51-54,共4页
Taking the changes of construction land in Wan’an County over the years as the research object,the quantity and spatial characteristics of construction land in Wan’an County were analyzed,and the overall situation a... Taking the changes of construction land in Wan’an County over the years as the research object,the quantity and spatial characteristics of construction land in Wan’an County were analyzed,and the overall situation and regional differences of construction land utilization in Wan’an County were revealed.From the aspects of main influencing factors such as land use structure,land use intensity,land input intensity and output benefit,an evaluation indicator system was established to evaluate the economical and intensive use level of construction land in Wan’an County.The results show that the score of the economical and intensive use level of construction land in Wan’an County was 56.92,which was the lowest among all the districts and counties in Ji’an City.Based on the evaluation results,the corresponding economizing and intensive strategies were put forward,and the safeguard measures for its implementation were explored.The purpose is to provide some support for the preparation of territorial spatial planning,the delineation of urban development boundaries,and the potential exploitation of construction land stock,hoping to improve the utilization efficiency and benefit of construction land in Wan’an County,and promote the economic growth of Wan’an County to the stage of high-quality development. 展开更多
关键词 Construction land Economical and intensive utilization evaluation
下载PDF
Discussion on the Index System of Intensive Land Use Evaluation in Development Area 被引量:7
2
作者 LIU Xiang-dong1,GAO Jie2 1.School of Land Science and Technology,China University of Geosciences,Beijing 100083,China 2.Weida Real Estate Evaluation Corporation of Henan Province,Luoyang 471000,China 《Asian Agricultural Research》 2011年第2期91-96,100,共7页
The establishment of evaluation index system is the key to the evaluation of intensive land use.On the basis of expounding connotation,characteristics and the principle of establishing evaluation index system,and as f... The establishment of evaluation index system is the key to the evaluation of intensive land use.On the basis of expounding connotation,characteristics and the principle of establishing evaluation index system,and as for the problems existing in Evaluation Regulation(Trial)of Intensive Land Use in Development Area,regarding the evaluation index system of intensive land use in the development area,in the light of the connotation of intensive land use in development area,coupled with the practical situation of the land use in China's development area,after referring to the research achievements of domestic and abroad scholars,some suggestions are put forward in order to improve and perfect the evaluation index system of intensive land us in development area. 展开更多
关键词 intensive land USE evaluation INDEX system Develop
下载PDF
Evaluation of Intensive Urban Land Use Based on an Artificial Neural Network Model:A Case Study of Nanjing City,China 被引量:2
3
作者 QIAO Weifeng GAO Junbo +3 位作者 LIU Yansui QIN Yueheng LU Cheng JI Qingqing 《Chinese Geographical Science》 SCIE CSCD 2017年第5期735-746,共12页
In this paper, the artificial neural network(ANN) model was used to evaluate the degree of intensive urban land use in Nanjing City, China. The construction and application of the ANN model took into account the compr... In this paper, the artificial neural network(ANN) model was used to evaluate the degree of intensive urban land use in Nanjing City, China. The construction and application of the ANN model took into account the comprehensive, spatial and complex nature of urban land use. Through a preliminary calculation of the degree of intensive land use of the sample area, representative sample area selection and using the back propagation neural network model to train, the intensive land use level of each evaluation unit is finally determined in the study area. Results show that the method can effectively correct the errors caused by the limitations of the model itself and the determination of the ideal value and weights when the multifactor comprehensive evaluation is used alone. The ANN model can make the evaluation results more objective and practical. The evaluation results show a tendency of decreasing land use intensity from the core urban area to the periphery and the industrial functional area has relatively low land use intensity compared with other functional areas. Based on the evaluation results, some suggestions are put forward, such as transforming the mode of urban spatial expansion, strengthening the integration and potential exploitation of the land in the urban built-up area, and strengthening the control of the construction intensity of protected areas. 展开更多
关键词 urban land intensive use functional area artificial neural network (ANN) model Nanjing city
下载PDF
Database Management System Construction for the Evaluation Results of Intensive Land Use in the Development Areas of Hunan Province 被引量:1
4
作者 Mingliang LIU 《Asian Agricultural Research》 2013年第12期54-58,共5页
Using spatial data integration and database technology,analyzing and integrating the assessment results in all the development zones at different time in Hunan Province,the paper is intended to construct the database ... Using spatial data integration and database technology,analyzing and integrating the assessment results in all the development zones at different time in Hunan Province,the paper is intended to construct the database and managerial system for the assessment results of land use intensity in development zones,thus formulating"one map"of Hunan Development zones and realizing the integrated management and application of the assessment results in all the development zones at any time of Hunan above the provincial level.It has been proved that the system has good application effect and promising development in land management for land management departments and development zones. 展开更多
关键词 SPATIAL DATA INTEGRATION evaluation of intensive l
下载PDF
Evaluation and Obstacle Diagnosis of Low-carbon Intensive Land Use in Kaifeng City
5
作者 Chenguang YUAN Lingchao WANG +3 位作者 Peng FAN Lei WANG Qingwei YANG Xihui YANG 《Agricultural Biotechnology》 CAS 2021年第5期69-73,78,共6页
Low carbon intensive use of urban land is an important trend to achieve regional high quality development.In this study,with Kaifeng municipal district as an example,the catastrophe progression model was used to estim... Low carbon intensive use of urban land is an important trend to achieve regional high quality development.In this study,with Kaifeng municipal district as an example,the catastrophe progression model was used to estimate and analyze the low-carbon intensive use level of urban land in Kaifeng City from 2011 to 2020,and the obstacle factors in the process of low-carbon intensive land use in Kaifeng City were revealed by using the obstacle degree model.The results showed that during the study period,the low-carbon intensive use of land in Kaifeng City showed a slow,fluctuating and declining trend,and the overall situation was in a generally intensive state.The land input level and land output level were on the rise,while the low-carbon level of land and the degree of land use were on the decline.Currently,the main obstacle factors restricting the low-carbon intensive use of land in Kaifeng City were the carbon structure coefficient of land use,energy consumption per square kilometer,carbon emissions per square kilometer,carbon emissions per capita,and non-agricultural land use efficiency.In the future,it is necessary to further improve the land use structure and promote the high-quality development of Kaifeng City. 展开更多
关键词 Low-carbon intensive use of urban land Entropy value method Catastrophe progression Obstacle degree Kaifeng city
下载PDF
Evaluation of the Economical and Intensive Use of Industrial Land in Chizhou Economic and Technological Development Zone 被引量:3
6
作者 Rui LIU 《Asian Agricultural Research》 2014年第10期85-90,共6页
Based on the subdivision of industrial land in Chizhou Economic and Technological Development Zone,this paper builds the evaluation indicator system for the economical and intensive use of industrial land in the devel... Based on the subdivision of industrial land in Chizhou Economic and Technological Development Zone,this paper builds the evaluation indicator system for the economical and intensive use of industrial land in the development zone,to analyze the current situation of economical and intensive use of industrial land. The results show that the levels of economical and intensive use of industrial land vary in the development zone; the factors affecting the intensive degree of various industries also vary; the industry in Chizhou Economic and Technological Development Zone is still in the transition phase from inefficient use to low level of use to intensive use. 展开更多
关键词 INDUSTRIAL land Economical and intensive use Evalu
下载PDF
Comprehensive Evaluation of Unsafe State of Arable Land Resources:A Case Study of Chengdu City 被引量:1
7
作者 Li DENG Jin WEI 《Asian Agricultural Research》 2013年第3期52-56,共5页
We establish the unsafe state indicator system reflecting the unsafe state of arable land within the scope of the city. Using analytic hierarchy process and entropy method,we determine the weight of indicator; using l... We establish the unsafe state indicator system reflecting the unsafe state of arable land within the scope of the city. Using analytic hierarchy process and entropy method,we determine the weight of indicator; using linear weighted method,we conduct comprehensive evaluation of unsafe operation of arable land resource system in Chengdu City during the period 1999-2010. Through the unsafe state analysis,we draw the following conclusion: the share of arable land area in total land area,effective irrigation area,the area of low-yielding field,application rate of chemical fertilizer per unit area of arable land,and application rate of pesticide per unit area of arable land,are the key factors for easing the unsafe state in the short term. Finally we put forth the following recommendations: strengthening profound understanding of the seriousness of unsafe state of arable land; strengthening the basic arable land protection; continuing to tap the quality enhancement potential of arable land; consistently implementing the guideline and policy of " Combination of Use and Maintenance" . 展开更多
关键词 ARABLE land RESOURCES COMPREHENSIVE evaluation of
下载PDF
Evaluation of Intensive Land Utilization based on Anti-planning Concept
8
作者 WENG Dalai 《Journal of Landscape Research》 2012年第11期23-26,28,共5页
Based on the gist of anti-planning,evaluation standards and methods of intensive land utilization were re-examined according to the inverse planning procedures.Significant role of compulsory non-development zone(simil... Based on the gist of anti-planning,evaluation standards and methods of intensive land utilization were re-examined according to the inverse planning procedures.Significant role of compulsory non-development zone(similar to the traditional"non-construction land")among the planning fruits in the intensive utilization of urban land resources and relevant index weights in the evaluation system were re-weighed.In land evaluation,relevant control indexes of compulsory non-development zone were first calculated and evaluated,healthy and sustainable development coefficients of land were obtained and regarded as the core content of the whole evaluation system. 展开更多
关键词 evaluation of intensive land UTILIZATION Anti-planning landSCAPE safety pattern HEALTHY and sustainable development
下载PDF
Discussion on the Method of Land Quality Geochemical Evaluation Database : A Case Study of Diao Town and Xinzhai Town of Zhangqiu City
9
作者 Qing CAI 《Agricultural Biotechnology》 CAS 2021年第2期107-112,共6页
The land quality geochemical evaluation database was mainly based on soil geochemical surveys.During its construction process,geochemical survey data involving atmospheric dry(wet)sediments,irrigation water,fertilizer... The land quality geochemical evaluation database was mainly based on soil geochemical surveys.During its construction process,geochemical survey data involving atmospheric dry(wet)sediments,irrigation water,fertilizers and crops was simultaneously collected,analyzed and compiled into result maps using MAPGIS.ACCESS was used to manage standardized result data to establish an evaluation database.The database included a basic spatial database involving regional geography,topography,soil type and land use,a spatial evaluation database centered on the sampling layout of the work areas of soil,irrigation water,crops and other media,the distribution and changes of soil chemical elements,the classification of soil pollution and the classification of soil element environment and nutrients,and an evaluation database of various result maps such as land planning map,characteristic agricultural product planting plan suggestion map and fertilization suggestion map.The database realized the scientific and effective management of the samples and corresponding numerous laboratory analysis data,and provides basic information for the geochemical survey and evaluation of the land quality in the evaluation areas and the overall comprehensive research,and an important basis for promoting the adjustment of agricultural economic planning,the development of modern green agriculture and the development and utilization of high-quality characteristic land resources. 展开更多
关键词 land quality Geochemical evaluation DATABASE Zhangqiu city
下载PDF
Carbon Emission of Regional Land Use and Its Decomposition Analysis: Case Study of Nanjing City, China 被引量:11
10
作者 ZHAO Rongqin HUANG Xianjin +3 位作者 LIU Ying ZHONG Taiyang DING Minglei CHUAI Xiaowei 《Chinese Geographical Science》 SCIE CSCD 2015年第2期198-212,共15页
Through the matching relationship between land use types and carbon emission items, this paper estimated carbon emissions of different land use types in Nanjing City, China and analyzed the influencing factors of carb... Through the matching relationship between land use types and carbon emission items, this paper estimated carbon emissions of different land use types in Nanjing City, China and analyzed the influencing factors of carbon emissions by Logarithmic Mean Divisia Index(LMDI) model. The main conclusions are as follows: 1) Total anthropogenic carbon emission of Nanjing increased from 1.22928 ×10^7 t in 2000 to 3.06939 × 10^7 t in 2009, in which the carbon emission of Inhabitation, mining & manufacturing land accounted for 93% of the total. 2) The average land use carbon emission intensity of Nanjing in 2009 was 46.63 t/ha, in which carbon emission intensity of Inhabitation, mining & manufacturing land was the highest(200.52 t/ha), which was much higher than that of other land use types. 3) The average carbon source intensity in Nanjing was 16 times of the average carbon sink intensity(2.83 t/ha) in 2009, indicating that Nanjing was confronted with serious carbon deficit and huge carbon cycle pressure. 4) Land use area per unit GDP was an inhibitory factor for the increase of carbon emissions, while the other factors were all contributing factors. 5) Carbon emission effect evaluation should be introduced into land use activities to formulate low-carbon land use strategies in regional development. 展开更多
关键词 carbon emission land use intensity Logarithmic Mean Divisia Index(LMDI) model decomposition analysis Nanjing city
下载PDF
Empirical Research on Influencing Factors of Cultivation Land Intensive Use in Chongqing 被引量:1
11
作者 ZHU Li-fen1, SI Lin-jie1, WANG Yong-ben2 1. Upper Yangtze Economic Research Center, Chongqing Technology and Business University, Chongqing 400067, China 2. Department of Geographical Sciences, Southwest University, Chongqing 400715, China 《Asian Agricultural Research》 2010年第9期49-52,共4页
Taking Chongqing as example, the paper ascertains the influencing factors of cultivation land intensive use from aspects of land conditions, family conditions and land operation conditions and theoretically expects th... Taking Chongqing as example, the paper ascertains the influencing factors of cultivation land intensive use from aspects of land conditions, family conditions and land operation conditions and theoretically expects the influencing relations of factors to the intensive uses. Collecting the land conditions, family conditions and land operation conditions through surveys, analyzes each influencing factors in a statistical description way. Constructing the empirical model, calculates the relations of land intensive use to the influencing factors with SPSS. The calculation results show a significant inverse correlation between land intensive use and land area, the space between land and counties, family members, the number of migrant workers, types of cultivation land, land transfer conditions. There is a significant positive correlation between land use and family average income, land investment. Based on these, the paper puts forwards corresponding suggestions and countermeasures of highlighting the land intensive using levels. 展开更多
关键词 intensive USES of CULTIVATION land Transfer of cul
下载PDF
An Empirical Study on How to Intensively Use Land and Tap Land Potential in Ma'anshan City
12
作者 Yu WANG Zhongxiang YU 《Asian Agricultural Research》 2016年第5期71-73,共3页
This paper first analyzes the current situation of land use in Ma'anshan City,and points out some problems in Ma'anshan's construction land use such as obvious contradiction between supply and demand,irrat... This paper first analyzes the current situation of land use in Ma'anshan City,and points out some problems in Ma'anshan's construction land use such as obvious contradiction between supply and demand,irrational land supply,and low level of economical and intensive land use. Then it summarizes Ma'anshan's practice in intensively using land and tapping land potential,and finally brings forward the relevant recommendations. 展开更多
关键词 Ma’anshan city intensive land USE land POTENTIAL RECOMMENDATIONS
下载PDF
Land Degradation Evaluation in North Hebei Province Based on Remote Sensing and GIS
13
作者 Yuan Jinguo Liu Jinsong +1 位作者 Wang Wei Niu Zheng 《Chinese Journal of Population,Resources and Environment》 北大核心 2006年第3期28-36,共9页
Land degradation is one of the serious environmental problems that can lead to poverty, and is especially prominent in eco-fragile areas in developing countries and increases the risk of environmental safety. North He... Land degradation is one of the serious environmental problems that can lead to poverty, and is especially prominent in eco-fragile areas in developing countries and increases the risk of environmental safety. North Hebei Province belongs to an ecologically fragile region in North China, which has great impact on the eco-safety of Beijing and Tianjin. Using Landsat TM data and GIS, this paper evaluates land degradation in North Hebei province of China from the the 1960′s to 1987 and 2000. Land use/cover change pattern from 1987 to 2000, its regional difference and forest change characteristics will also be analyzed; soil erosion intensity and arable land suitability were also evaluated. Results revealed that land use/cover pattern in this study area did not change greatly from 1987 to 2000. The structure and function of regional land ecosystem was at a level of local improvement and integral deterioration. Land above medium soil erosion intensity reached 21 percent, which was also the area with a serious soil erosion and land degradation problem. Soil erosion and land degradation intensity of grassland was the biggest. For the present arable land, the proportion of high suitability was 13 percent. 展开更多
关键词 land degradation North Hebei Province soil erosion intensity arable land suitability evaluation
下载PDF
Existing European Buildings and Cities: Economic Improvement and Evaluation of the Cost-Benefit Related to Lifecycle and Performance
14
作者 Giampiero Bambagioni 《Journal of Civil Engineering and Architecture》 2017年第3期265-273,共9页
In this study, the interdependency is presented between the characteristics of the buildings and the relative economic value, in order to plan economic policies and preconditions for improving the quality of the Europ... In this study, the interdependency is presented between the characteristics of the buildings and the relative economic value, in order to plan economic policies and preconditions for improving the quality of the European buildings heritage through access, by an holistic approach, to the necessary f'mancial resources. The economic value of a real estate asset is closely connected to the construction features and their performance over time (lifecycle). Safer, more comfortable and productive buildings for inhabitants are at the same time more operationally efficient and economically convenient for the owners. Solidity characteristics and static resistance to earthquakes, eco-efficiency and other constructive qualities of the building will provide benefits in the long term, and they are directly related the LCC (life cycle cost) including specific construction and/or maintenance costs. Moreover, these characteristics have an impact on the "market value" and on the "mortgage lending value" of properties, as well as on the possibility of financing the purchase through access to more affordable mortgages, and to make really feasible conversions even in the absence of public financial resources. This study introduces a new approach for conversions involving whole buildings or city areas. This research identifies the economic sustainability of a project by combining principles and suitable methodologies, together with performance and other characteristics. These aspects constitute the essential prerequisite for obtaining mortgages from banks and/or financial resources from international investors. 展开更多
关键词 Housing and land management project evaluation market value appraisal and real estate finance urban sustainability risk assessment smart cities.
下载PDF
平原城市土地集约利用分类识别研究——基于江汉平原21个市县的熵权法评价研究
15
作者 林颖 张娴 +1 位作者 卢有朋 祝贺 《西部人居环境学刊》 CSCD 北大核心 2024年第4期122-128,142,共8页
土地集约利用评价作为重要的土地资源管理工具,对于土地资源的可持续利用和促进经济、生态、社会的协调发展具有重要意义。本文从宏观尺度进行城市土地集约利用情况的分类识别与横向比较研究,以江汉平原地区21个城市中心城区为研究对象... 土地集约利用评价作为重要的土地资源管理工具,对于土地资源的可持续利用和促进经济、生态、社会的协调发展具有重要意义。本文从宏观尺度进行城市土地集约利用情况的分类识别与横向比较研究,以江汉平原地区21个城市中心城区为研究对象,通过遥感解析与地理信息数据分析方法批量识别城市建设用地,在此基础上,构建多层次多维度的土地集约利用评价指标体系,运用熵权法以及K-means聚类分析方法对上述中心城区土地集约利用程度进行分类,揭示市级城市、省直管城市、县级城市等不同行政级别管辖差异下中心城区土地集约利用的分异情况,为城市因地制宜制定土地集约利用政策提供依据。 展开更多
关键词 建设用地 节约集约利用评价 熵权法 中心城区
下载PDF
集约用地视角下生态敏感区村庄用地更新研究——以北海大健康生态新区为例
16
作者 张春阳 王子豪 +1 位作者 王成芳 吴子超 《小城镇建设》 2024年第8期41-50,共10页
在我国土地资源稀缺、大量空间需求矛盾及大力实施乡村振兴战略的背景下,村庄用地更新成为获取建设空间增量的有效手段,尤其是生态敏感区内的村庄,建设用地的合理布局对于区域生态系统与人类活动之间的平衡具有重要意义。文章以广西壮... 在我国土地资源稀缺、大量空间需求矛盾及大力实施乡村振兴战略的背景下,村庄用地更新成为获取建设空间增量的有效手段,尤其是生态敏感区内的村庄,建设用地的合理布局对于区域生态系统与人类活动之间的平衡具有重要意义。文章以广西壮族自治区北海市大健康生态新区的规划实践为例,探讨集约用地理念下的生态敏感区村庄用地更新方法,首先对现状生态环境和用地布局进行解译,归纳其生态基底特征、用地布局形式与实践难题;其次提出集约用地布局策略,包括确定建设用地及空间管制分区、制定生态保护与安全韧性策略、解译并延续现状肌理与用地模式、植入功能业态与风貌协调,以期为生态敏感区的村庄用地更新实践提供参考。 展开更多
关键词 集约用地 生态敏感区 村庄用地更新 用地布局 北海市
下载PDF
顾及城郊农田生态服务价值的中心城区生态安全网络重构
17
作者 彭李智 胡石元 +3 位作者 张金亭 周恒 石庆翠 吴秀 《生态学报》 CAS CSCD 北大核心 2024年第13期5801-5815,共15页
针对中心城区日益凸显的农业、生态、城镇三类空间冲突问题,借鉴田园城市理论,创新性地提出一种利用城郊高生态价值农田细化城市生态安全网络,构建“三生”空间协调有序的国土空间格局的方法。利用防城港市遥感影像、国土调查和社会经... 针对中心城区日益凸显的农业、生态、城镇三类空间冲突问题,借鉴田园城市理论,创新性地提出一种利用城郊高生态价值农田细化城市生态安全网络,构建“三生”空间协调有序的国土空间格局的方法。利用防城港市遥感影像、国土调查和社会经济数据,在城郊耕地综合评价的基础上,采用评价结果修正的当量因子法评估其农田生态价值。进一步利用InVEST、MSPA及MCR模型初步构建市域生态安全网络,再将高生态价值农田作为临时生态节点完成网络重构,并进行对比分析。以重构的新网络指导中心城区的规划分区优化,并对市域和中心城区两级生态网络要素的空间管控规则及联合管理机制进行了探索。结果表明:(1)防城港市区单位面积农田生态价值为35540元/hm^(2),高生态价值农田较均匀的环城分部。(2)重构后的网络新增34个临时节点和51条绿带,延长48.425 km,增加808.89 hm^(2)生态源。(3)新网络能有效引导中心城区形成圈层发展结构,较原网络在连通性、有效性、稳定性上均有所提升。研究结果为注重协调发展的国土空间规划背景下区域空间格局优化提供了新的思路。 展开更多
关键词 耕地综合评价 当量因子法 生态安全网络重构 田园城市理论 临时生态节点
下载PDF
沿海城市陆海生态环境质量综合评价与耦合协调度 被引量:2
18
作者 程飞飞 李洪庆 +1 位作者 宋红艳 陈明慧 《生态学报》 CAS CSCD 北大核心 2024年第9期3855-3867,共13页
沿海城市的经济快速发展和土地利用与海洋生态环境之间关系密切。陆海统筹的背景下,科学了解陆海生态环境质量演变和空间分布特征,探究两者的耦合协调关系对提升陆海生态安全统筹具有重要的实践意义。以中国沿海53个城市为例,采用“活力... 沿海城市的经济快速发展和土地利用与海洋生态环境之间关系密切。陆海统筹的背景下,科学了解陆海生态环境质量演变和空间分布特征,探究两者的耦合协调关系对提升陆海生态安全统筹具有重要的实践意义。以中国沿海53个城市为例,采用“活力-组织-恢复力(VOR,Vitality-Organization-Resilience)”模型评价陆地生态系统健康状况,采用TOPSIS法通过构建指标体系评价海洋生态环境质量,采用耦合协调度模型分析陆海生态环境质量耦合协调水平,并提出相关建议。结果表明:1)2010—2020年沿海城市陆地生态系统健康呈现“北低南高”的分布格局,以杭州湾为主要分界线;2)2010—2020年沿海城市海洋生态环境质量呈现趋好的态势,海洋生态环境质量:沿东海经济区<环渤海经济区<沿黄海经济区<沿南海经济区;3)2010—2020年沿海城市陆海生态环境质量耦合程度进一步加强,且南部城市协调度高于北部。研究为中国沿海地区陆海生态环境管理、因地制宜地开展生态修复工作提供科学依据,对陆海生态系统的健康协同发展具有重要意义。 展开更多
关键词 沿海城市 生态环境质量评价 生态系统健康 耦合协调度 陆海统筹
下载PDF
2006—2021年内蒙古耕地集约化与规模化耦合协调性
19
作者 郝岩 张裕凤 《水土保持通报》 CSCD 北大核心 2024年第1期314-325,共12页
[目的]研究耕地可持续集约化与规模化耦合协调模式,为制定国土空间规划、乡村振兴、耕地保护等政策提供科学依据。[方法]以内蒙古自治区为例,基于研究区2006—2021年的土地利用实际,运用熵值法构建耕地可持续集约化与规模化评价指标体系... [目的]研究耕地可持续集约化与规模化耦合协调模式,为制定国土空间规划、乡村振兴、耕地保护等政策提供科学依据。[方法]以内蒙古自治区为例,基于研究区2006—2021年的土地利用实际,运用熵值法构建耕地可持续集约化与规模化评价指标体系,采用多因子综合分析法对耕地可持续集约化与规模化进行测算,根据评价结果进行耦合协调性分析。[结果]2006—2021年内蒙古耕地集约化综合水平在0.218~0.370之间,总体呈上升趋势,空间特征为东西耕地集约化水平较高,中部较低。各盟市耕地集约化水平差距较小,耕地利用程度与产出效果对耕地集约化水平影响较为显著。耕地规模化综合水平在0.433~0.532内波动,总体呈现先上升后下降的趋势,空间分布特征不规律。各盟市耕地规模化水平差距较大,耕地斑块形状与面积对耕地规模化水平贡献度较高。在过去15a间,内蒙古耕地集约化与规模化的耦合度由磨合阶段逐步向高度磨合阶段发展,耕地集约化与规模化的耦合协调度持续增长,由濒临失调、勉强协调向初级协调、中级协调跃进,但仍有33.33%的盟市处于勉强协调阶段,空间分布格局大致为东西部较高,中部较低。[结论]内蒙古耕地利用水平存在优化空间,应更加注重对耕地科学利用,改善种植环境,将耕地利用与保护并重,促进内蒙古地区农业可持续高质量发展。 展开更多
关键词 耕地 集约利用评价 规模化评价 耦合协调模型 内蒙古自治区
下载PDF
基于最小累积阻力模型的土地利用功能分区研究——以广西贺州市为例
20
作者 杨婷 龚健 +1 位作者 高静 潘越 《地域研究与开发》 北大核心 2024年第1期167-173,共7页
土地利用功能分区是国土空间开发保护与利用的重要前提。将最小累积阻力模型引入广西贺州市土地利用功能分区研究中,基于阻力约束视角开展建设用地、生态用地、农业用地扩张阻力评价,通过分析不同用地扩张的适宜性划分土地利用功能区。... 土地利用功能分区是国土空间开发保护与利用的重要前提。将最小累积阻力模型引入广西贺州市土地利用功能分区研究中,基于阻力约束视角开展建设用地、生态用地、农业用地扩张阻力评价,通过分析不同用地扩张的适宜性划分土地利用功能区。结果表明:(1)生态用地扩张阻力以各生态保护源为中心向四周扩张,农业用地扩张阻力由贺州市中部向四周递增,建设用地扩张阻力呈中部低、四周高的特点;(2)依据各类用地扩张的适宜性将贺州市划分为生态保护核心区、农业生产核心区、建设开发核心区、生态保护涵养区和生产生态拓展区,其空间分布与贺州市现状用地布局相符且契合相关规划的用途分区及管控要求。与传统适宜性评价相比,基于扩张阻力评价的适宜性分析综合考虑了各用地类型的垂直自然要素和水平扩张作用,为具体的土地利用功能分区提供了更为科学的依据;研究明确了各功能区的分布并提出对应的发展建议,能够为贺州市土地利用结构优化提供依据与指导。 展开更多
关键词 最小累积阻力模型 土地利用功能分区 扩张阻力评价 贺州市
下载PDF
上一页 1 2 70 下一页 到第
使用帮助 返回顶部