多因素耦合下三峡库区土地利用未来情景模拟(英文)

来源 :Journal of Geographical Sciences | 被引量 : 0次 | 上传用户:liongliong566
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Model simulation and scenario change analysis are the core contents of the future land-use change(LUC) study. In this paper, land use status data of the Three Gorges Reservoir Region(TGRR) in 1990 was used as base data. The relationship between driving factors and land-use change was analyzed by using binary logistic stepwise regression analysis, based on which land use in 2010 was simulated by CLUE-S model. After the inspection and determination of main parameters impacting on driving factors of land use in the TGRR, land use of this region in 2030 was simulated based on four scenarios, including natural growth, food security, migration-related construction and ecological conservation. The results were shown as follows:(1) The areas under ROC curves of land-use types(LUTs) were both greater than 0.8 under the analysis and inspection of binary logistic model. These LUTs include paddy field, dryland, woodland, grassland, construction land and water area. Therefore, it has a strong interpretation ability of driving factors on land use, which can be used in the estimation of land use probability distribution.(2) The Kappa coefficients, verified from the result of land-use simulation in 2010, were shown of paddy field 0.9, dryland 0.95, woodland 0.97, grassland 0.84, construction land 0.85 and water area 0.77. So the results of simulation could meet the needs of future simulation and prediction.(3) The results of multi-scenario simulation showed a spatial competitive relationship between different LUTs, and an influence on food security, migration-related construction and ecological conservation in the TGRR, including some land use actions such as the large-scale conversion from paddy field to dryland, the occupation on cultivated land, woodland and grassland for rapid expansion of construction land, the reclamation of woodland and grassland into cultivated land, returning steep sloping farmland back into woodland and grassland. Therefore, it is necessary to balance the needs of various aspects in land use optimization, to achieve the coordination between socio-economy and ecological environment.
其他文献
复杂网络是复杂性科学研究中受到最广泛关注的方向,在物理学、信息科学、生物学、数学乃至社会学、管理学等领域都做出了重大贡献并产生持续影响。复杂网络在表面上呈现出错
阮籍与庾信两位诗人的现存诗歌中均有以五言古体为创作形式的咏怀诗 ,二人的咏怀诗都体现了在高压政治统治下郁郁寡欢的苦闷矛盾心理 ,反映他们对社会人生的感想。但由于他们
物联网是当前信息行业讨论的热点,甚至被誉为继计算机、互联网技术之后的第三次信息革命。本文探讨了物联网的业务特点、网络拓扑结构,并从接入层面分析了移动通信网络与物联
随着全球经济的增长,海洋经济的地位日益重要,世界各国都开始抢占开发海洋资源。然而,随着海洋资源开发力度加大,也带来了许多不可避免的问题,如船舶碰撞、搁浅、沉没等事故
随着智能交通系统的逐步建立,交通监控视频中车辆检测技术的需求不断扩大。本文对视频中车辆检测面对的难题和现有的方法进行了研究,然后结合Faster R-CNN和ViBe算法提出了本
围食膜(peritrophic membrane,PM)是无脊椎动物为适应其生理活动,在漫长的进化过程中形成的一种具有渗透性的非细胞透明网状膜结构,由中肠细胞分泌并贯穿于整个中肠,主要由几丁
将混凝土简化成由骨料、水泥砂浆及其二者之间的界面层所组成的三相复合材料,建立了混凝土骨料随机分布三维模型,用界面单元多次细分技术进行有限元网格划分,基于弹性损伤本
随着计算机网络技术的日益发展,现代远程教育正迅速地在各个国家得到普及。同时随着远程教育课程数量与规模的扩大,传统的三层架构独立系统难以胜任大型异构、分布式系统的要
《地理教育》期刊的封二、封三“教师风采”,意在为全国地理教师提供一个展示风采、交流心声的平台,诚请广大地理教师踊跃参加。要求撰写一份严格控制在400字以内的介绍材料,
<正> 介绍:隧洞月进尺1300.8m,周进尺308.8m以及一天内进尺65.5m的记录是意大利CMC公司使用由美国罗宾斯公司制造的双护盾全断面掘进机在引大入秦水利灌溉工程30A号输水隧洞