基于多尺度分割算法的湿地干扰格局研究
文献类型：期刊论文
| 作者 | 陶和平 ; 刘斌涛; 孔博; 张继飞
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| 刊名 | 国土资源遥感
 |
| 出版日期 | 2009-12-15 |
| 期号 | 4页码:62-67 |
| 关键词 | 三江平原湿地 多尺度分割 干扰格局 干扰邻近度 |
| 其他题名 | WETLAND DISTURBANCE PATTERNS BASED ON THE MULTI-SCALE REMOTE SENSING IMAGE SEGMENTATION METHOD |
| 合作状况 | 其它 |
| 中文摘要 | 以三江平原具有典型湿地特征的建三江区为例,首先采用不同时间段归一化植被指数(NDVI)差值的变化监测人类活动改变的土地利用变化程度,然后结合遥感图像多尺度分割法,分析湿地系统的8种类型空间干扰格局,计算干扰度(PD)、干扰邻近度(PDD)及二者的相关性。结果表明:研究区土地利用类型变化对多尺度干扰格局的分布有明显影响,耕地、草地和沼泽地总干扰率较高,变化频繁;水域、林地和沼泽在干扰类型C1、C2中分布较广,但干扰值低,面积小;耕地分别占干扰类型C7、C8的74.38%和61.76%,干扰值高且面积大,说明耕地是建三江区湿地系统的主要干扰源。干扰邻近度说明干扰在一定尺度上发生,当干扰度PD<0.4或PD>0.7,且干扰邻近度PDD>PD时,干扰对周边土地类型必定产生影响。本研究为湿地生态系统脆弱性和恢复力的评价提供有效的生态特征指标。 |
| 英文摘要 | This paper has used the differences of space-time Landsat TM images of NDVI standardized change intensity indexes to monitor land use changes.Eight clusters of disturbance patterns were identified in Jiansanjiang plain wetland after experimenting with a multi-scale remote sensing image segmentation method,which measured the proportion of disturbance(PD) and its adjacency(PDD) of the land cover and made a correlative analysis between them.The results show that the change of land use has exerted an obvious influence on the distribution of patterns of disturbance at the multi-scale,and the total disturbance rates of cropland,grassland and swamp are high and characterized by frequency variation.The proportion of the disturbance clusters C1 and C2 is distributed mainly in water,forest and marsh areas,and the value and the affected area are small.However,the rice land and crop land account respectively for about 74.38% and 61.76% of the proportion of the disturbance clusters C7,C8,and the value is high and the affected area is big,which indicates that cultivation is the main affecting factor that disturbs the wetland ecological system in this area.Disturbance adjacency at multi-scales has proved that human disturbance has appeared to a certain extent: when PD<0.4 or PD>0.7 and PDD>PD,human disturbance has an effect on land cover.This study provides ecological indexes for the assessment of frangibility and restoration capability of the wetland ecological system in Jiansanjiang area. |
| 资助信息 | 中国科学院知识创新工程重要方向项目(编号:KZCX2-YW-333) |
| 语种 | 中文 |
| 公开日期 | 2010-09-13 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/1910]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山区发展研究中心 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
| 推荐引用方式 GB/T 7714 | 陶和平,刘斌涛,孔博,等. 基于多尺度分割算法的湿地干扰格局研究[J]. 国土资源遥感,2009(4):62-67. |
| APA | 陶和平,刘斌涛,孔博,&张继飞.(2009).基于多尺度分割算法的湿地干扰格局研究.国土资源遥感(4),62-67. |
| MLA | 陶和平,et al."基于多尺度分割算法的湿地干扰格局研究".国土资源遥感 .4(2009):62-67. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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