| 人工堤坝影响下的黄河三角洲海岸带生态特征分析 |
| |
| 引用本文： | 傅新,刘高焕,黄翀,刘庆生.人工堤坝影响下的黄河三角洲海岸带生态特征分析[J].地球信息科学,2011,13(6):797-803. |
| |
| 作者姓名： | 傅新 刘高焕 黄翀 刘庆生 |
| |
| 作者单位： | [1]中国科学院地理科学与资源研究所,资源与环境信息系统国家重点实验室,北京100101 [2]中国科学院研究生院,北京100049 |
| |
| 基金项目： | 中国科学院地理科学与资源研究所野外台站开放基金; 国家自然科学基金项目（41023010,40901223）资助 |
| |
| 摘 要： | 在滨海地区,堤坝干扰对自然植被景观及土壤属性的梯度变化规律有重要的影响.本文采用统计分析和梯度分析的方法,在RS信息提取和GIS空间分析技术的支持下,从植被群落的变化入手,从样地尺度上研究堤坝对黄河三角洲海岸带土壤环境的影响并揭示堤坝干扰下,土壤属性的梯度变化规律.研究表明:(1)堤坝影响海岸带地区自然植被的盖度,并且...
|
| 关 键 词： | 黄河三角洲海岸带 堤坝干扰 自然植被 土壤属性 梯度分析 |
| 收稿时间： | 2011-07-27; |
Analysis of Ecological Characteristics of Coastal Zone in Yellow River Delta under Dam Disturbance |
| |
| FU Xin,LIU Gaohuan,HUANG Chong,LIU Qingsheng.Analysis of Ecological Characteristics of Coastal Zone in Yellow River Delta under Dam Disturbance[J].Geo-information Science,2011,13(6):797-803. |
| |
| Authors: | FU Xin LIU Gaohuan HUANG Chong LIU Qingsheng |
| |
| Institution: | 1.State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China; 2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
| |
| Abstract: | In the coastal zone of Yellow River Delta,artificial dams,which were built as a protection against the sea,have important influence on the natural vegetation landscape and the gradient changes of soil properties.In this paper,we aim to research the influence of artificial dams on ecological characteristics of the study area with the support of remote sensing and GIS technology.First,we designed the field investigation program,then extracted coastline and artificial dams from remote sensing images,and finally researched changes of vegetation communities with distance from coastline,the influence of artificial dams on soil environment and the gradient patterns of soil properties under dam disturbance by statistical analysis and gradient analysis.We found that：（i） dam disturbance affected natural vegetation cover and accelerated the forward succession of natural vegetation communities in the coastal zone of Yellow River Delta;（ii） In the area with dams,the trends of the total nitrogen,available phosphorus and total salt in the distance gradient from the coastline were more influenced by dam disturbance.The dams built in different regions and at different times have different influences on soil properties;And（iii） total nitrogen was a linear increasing,but available phosphorus and total salt all showed a linear decrease.The change rates of these three factors in the north were higher than those in the south.After the dam built,the longer the time,the slower the trends of the gradient of this three factors.And the rates of change were lower with the growth over time.About 25 years after the dam built,the change rate was 0.003,and the trend of total nitrogen was almost stable.The results further explained the reasons of natural vegetation landscape heterogeneity on the distance gradient from the coastline.It also has some instructive significance for the restoration and protection of wetland landscape under the context of the development of Yellow River Delta. |
| |
| Keywords: | coastal zone of Yellow River Delta dam disturbance natural vegetation soil property gradient analysis |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《地球信息科学》浏览原始摘要信息 |
| 点击此处可从《地球信息科学》下载免费的PDF全文 |
|
