[1]罗君,孙振亓,张学斌.基于Ripley’s K函数的绿洲景观格局演变分析——以张掖市甘州区为例[J].水土保持研究,2019,26(04):224-231.
　LUO Jun,SUN Zhenqi,ZHANG Xuebin.Analysis of the Characteristics and Changes of Landscape Pattern of Oasis in Ganzhou District of Zhangye City Based on Ripley’s K Function[J].Research of Soil and Water Conservation,2019,26(04):224-231.
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基于Ripley’s K函数的绿洲景观格局演变分析——以张掖市甘州区为例

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年04期 页码: 224-231 栏目: 出版日期: 2019-06-11
Title:
Analysis of the Characteristics and Changes of Landscape Pattern of Oasis in Ganzhou District of Zhangye City Based on Ripley’s K Function
作者:
罗君1,2, 孙振亓1,3,4, 张学斌2
1. 甘肃农业大学 资源与环境学院, 兰州 730070;
2. 西北师范大学 地理与环境科学学院, 兰州 730070;
3. 中国科学院 西北生态环境资源研究院 冰冻圈科学国家重点实验室, 兰州 730000;
4. 中国科学院大学 资源与环境学院, 北京 100049
Author(s):
LUO Jun1,2, SUN Zhenqi1,3,4, ZHANG Xuebin2
1. College of Environment and Resources, Gansu Agriculture University, Lanzhou 730070, China;
2. College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China;
3. State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
4. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
景观格局; 尺度; 聚集; 张掖绿洲
Keywords:
landscape pattern; scale; cluster; Zhangye Oasis
分类号:
P901
摘要:
基于1987年、2000年、2011年、2016年张掖市甘州区土地利用数据，应用Ripley’s K函数与空间自相关分析，对甘州区绿洲景观格局及其变化进行了研究，结果表明：耕地是甘州区绿洲区域的景观基质，未利用地环绕耕地周围，林地、水域、草地和城乡建设用地以斑块或廊道形式镶嵌在耕地与未利用地中；耕地、建设用地和林地面积逐渐增加，水域、草地和未利用地面积明显减少，水域和建设用地的空间聚集性强于草地、未利用地、林地和耕地；各年的景观要素均表现出较弱的聚集特征，具有较低程度的空间正相关，相关性逐年减弱，说明研究区域景观格局正在向随机化发展；草地和建设用地在较大尺度下呈现聚集的空间格局，林地、未利用地和耕地在小尺度下呈现出聚集的空间格局，1987年和2000年水域在小尺度下呈现出聚集的空间格局，2011年和2016年在较大尺度下呈现聚集的空间格局；自然景观的空间聚集性均有不同程度的增强，其面积比例不断下降，人工景观面积所占比例不断上升，表明研究区域景观类型趋向单一，人类活动对景观格局变化造成了显著影响。
Abstract:
By using the land use data of Ganzhou District, Zhangye City in 1987, 2000, 2011 and 2016, according to the Ripley’s K and the spatial autocorrelation analytical method, we studied the characteristics and changes of landscape pattern in oasis of Ganzhou District. The results showed that from 1987 to 2016, farmland was the landscape matrix in the research area, which was surrounded by unutilized land, while forestland, water area, grassland and urban and rural construction land were the patches or corridors, which spatially clumped significantly at all scales. The areas of farmland, urban and rural land and forestland were increasing, the areas of water area, grassland and unutilized land were reducing, and the spatial aggregation of water area and urban and rural land were stronger than grassland, unutilized land, forestland and farmland. The landscape elements had small aggregation features and positive spatial correlation every year, the correlation gradually declined, which seemed that landscape pattern of research area was developing towards random distribution. The spatial patterns of grassland and urban and rural land were cluster at the bigger scale, forestland, unutilized land and farmland were cluster at smaller scale, and water area was cluster at smaller scale of the order time, and cluster at bigger scale of the recent time. The spatial aggregation of natural landscape was stronger at different levels, and the proportion of area was keeping falling, but the proportion of area was continuously rising for the artificial landscape, which seemed that the types of landscape had become simple in the research area, and human activity had caused significant effect on the landscape pattern.

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备注/Memo

收稿日期:2018-07-30;改回日期:2018-11-07。
基金项目:国家自然科学基金（41661035）；甘肃农业大学学科建设基金（GSAU-XKJS-2018-199）；甘肃农业大学盛彤笙创新基金（GSAU-STS-2018-34）
作者简介:罗君(1985-),女,四川广安人,博士研究生,讲师,主要从事城市与区域规划和区域经济研究。E-mail:journeylj6@163.com

更新日期/Last Update: 1900-01-01