[1]付梦娣,妙旭华,全占军,等.庆阳市土地利用变化的景观生态效应研究[J].水土保持研究,2014,21(06):240-244.
　FU Meng-di,MIAO Xu-hua,QUAN Zhan-jun,et al.Land Use Change and Its Ecological Effect in Qingyang City of Gansu Province[J].Research of Soil and Water Conservation,2014,21(06):240-244.
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庆阳市土地利用变化的景观生态效应研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 21 期数: 2014年06期 页码: 240-244 栏目: 出版日期: 2014-12-28
Title:
Land Use Change and Its Ecological Effect in Qingyang City of Gansu Province
作者:
付梦娣1, 妙旭华2, 全占军1, 叶瑶1,3, 王琦1, 李俊生1, 肖能文1
1. 中国环境科学研究院 环境基准与风险评估国家重点实验室, 北京 100012;
2. 甘肃省环境科学设计研究院, 兰州 730000;
3. 南京农业大学 资源与环境科学学院, 南京 210095
Author(s):
FU Meng-di1, MIAO Xu-hua2, QUAN Zhan-jun1, YE Yao1,3, WANG Qi1, LI Jun-sheng1, XIAO Neng-wen1
1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
2. Institute of Environmental Science Research and Design of Gansu Province, Lanzhou 730000, China;
3. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
关键词:
庆阳市; 土地利用变化; 景观格局; 景观空间异质性; 生态效应
Keywords:
Qingyang; land use changes; landscape pattern; landscape spatial heterogeneity; ecological effects
分类号:
F301.2;X171.1
摘要:
本文以甘肃省庆阳市为研究对象，选取2005年和2010年Landsat TM影像作为基本信息源，借助GIS技术和Fragstas 4.0软件，研究庆阳市的土地利用/覆被变化及其景观生态效应。结果表明：（1）研究时段内土地利用/覆盖变化较大，各土地类型间转换频繁。落叶阔叶林面积大幅度减少，减少的落叶阔叶林转变为灌木林，且落叶阔叶林减少量大于灌木林增加量。耕地面积逐渐减少，草地、居住地和交通用地明显增加。（2）庆阳市斑块数目较多，平均斑块面积在增加，但景观丰富度、边缘密度和斑块密度呈减小趋势。斑块破碎化程度在减小，景观空间异质性减小和均质化发展使得景观稳定性降低。林草地边缘效应的降低，使其景观生态功能减弱。
Abstract:
In this paper, with the aid of the GIS technology and the software of Fragstas 4.0, Landsat/TM images of Qingyang city in 2005 and 2010 were selected to study the land use/cover change and its landscape ecological effects. The results showed that land use/cover of Qingyang had changed greatly within these periods. Land covers between various types were frequently transformed. The area of deciduous broad-leaved forest decreased greatly and was converted into shrubbery. The decrement area of deciduous broad-leaved forest is greater than increment area of shrubbery. The area of cropland decreased, while the area of grassland, residence and traffic land increased evidently. The number and mean size of patches were added in Qingyang. However, landscape richness, edge density and patch density reduced. The patch fragmentation and landscape spatial heterogeneity decreased and the tendency of homogenize of landscape Led to the decline of landscape stability. The decrease of edge effect of woodland and grassland Led to the function declined of landscape.

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备注/Memo

收稿日期:2014-01-10;改回日期:2014-01-25。
基金项目:中央级公益性科研院所基本科研业务专项（2013-YSKY-16）；国家科技支撑项目（2008BAC43B01）
作者简介:付梦娣(1987-),女,黑龙江饶河县人,学士,助理研究员,主要从事遥感与GIS应用研究。E-mail:mengdi_fu@163.com
通讯作者:肖能文(1973-),男,湖南桃江人,博士,副研究员,主要从事生态风险评价、土壤动物生态学和生态毒理学研究。E-mail:xiaonw@163.com

更新日期/Last Update: 1900-01-01