首页关于本刊影响因子及获奖投稿须知订阅及广告专辑与专题学术会议绿色发表通道优秀论文 
说明:
此论文已被《生态学报》录用,现已优先出版,可查看文章PDF版本!
张 月,张 飞,王 娟,任 岩,AbduwasitSGhulam,Hsiang-te KUNG.近40年艾比湖湿地生态干扰度时空动态及景观格局变化分析*.生态学报,2017,(21).http://dx.doi.org/10.5846/stxb201609081825  
近40年艾比湖湿地生态干扰度时空动态及景观格局变化分析*
Analysis on temporal and spatial dynamics of landscape patterns and Hemeroby of the Ebinur Lake wetland nature Reserve in Xinjiang in last 40 years
投稿时间:2016-09-08  最后修改时间:2017-05-26
DOI: 10.5846/stxb201609081825
关键词艾比湖湿地  生态干扰度  时空动态  景观格局
Key WordsEbinur Lake Wetland Nature Reserve  Hemeroby  spatio-temporal dynamics  landscape pattern
基金项目新疆维吾尔自治区自然科学基金项目(2016D01C029);自治区青年科技创新人才培养工程项目(2013731002);国家自然科学基金项目(41361045;41130531);国家自然科学基金(新疆联合基金本地优秀青年人才培养专项)(U1503302)资助。
作者单位E-mail
张 月 新疆大学资源与环境科学学院 zhangyuexinjiang@163.com 
张 飞 新疆大学资源与环境科学学院 zhangfei3s@163.com 
王 娟 新疆大学资源与环境科学学院  
任 岩 新疆大学资源与环境科学学院  
AbduwasitSGhulam 美国圣路易斯大学可持续发展中心  
Hsiang-te KUNG 美国孟菲斯大学地球科学系  
摘要点击次数 48
全文下载次数 9
摘要:
本文以新疆艾比湖湿地为研究区,利用1972、1998、2007年及2013年4个时期的 Landsat遥感影像作为数据源,并结合湿地的土地覆被状况,参考《全国土地利用分类》建立艾比湖湿地生态干扰类型分类系统。借助生态干扰度指数、景观格局指数以及GIS空间分析方法,探讨艾比湖湿地的生态干扰度的时空动态及景观响应机制。结果表明:(1)1972–2013年,艾比湖湿地生态干扰度总体呈现较为稳定的趋势,但其空间分布发生变化。生态干扰度类型之间的转化速率有加快的趋势。(2)研究区生态干扰度时空变化很有可能是由于自然及人类因素共同作用而产生的综合性的结果。(3)1972–2013年,边缘密度指数(ED), 平均形状指数(MSI),面积加权的平均斑块分形指数(AWMPFD)平均周长–面积比(MPAR)四项景观格局指数大体呈上升的趋势,2013年区域的景观指数较为稳定。(4)景观格局指数与生态干扰程度有密切的一致性。生态干扰度与景观格局指数空间分布相关性大小依次为:平均周长–面积比(MPAR) <边缘密度指数(ED) <平均形状指数(MSI) <面积加权的平均斑块分形指数(AWMPFD),且与生态干扰度均呈正相关。客观系统的认识和评价艾比湖湿地的生态系统及环境,可为干旱区实现自然环境的保护,土地利用及环境保护之间的关系协调提供较为实用的参考。
Abstract:
Abstract: Wetlands are important part of an ecological system. Wetlands not only provide the survival environment and material guarantee for plants, animals and human, but also produce a great benefit for the environment. Especially in the arid zone, wetlands have received tremendous scientific attention. According to Hemeroby degree, ecological environment can be directed and regulated area of intensity human activities. It is beneficial to manage rationally economic development and protect ecological environment. This research fills a gap in our understanding of the sustainable development of a wetland ecosystem inEbinur Lake Wetland Nature Reserve in Xinjiang Uyghur Autonomous Region in China. The hemeroby type classification system of Ebinur Lake Wetland Reserve was established based on the multiple datasets including Landsat MSS/TM/ETM /OLI images data obtained in 1972,1998, 2007 and 2013. This study explored the spatiotemporal dynamics of hemeroby and the landscape pattern response through hemeroby analysis, landscape pattern analysis, spatial patch analysis, and GIS spatial analysis in the study area. The results show that: (1) from 1972–2013, ecological hemeroby degree of the Ebinur lake wetland demonstrates a relatively stable trend, but its spatial distribution experienced drastic changes. Distribution of partially disturbed type has obviously changed. It shows that the natural degree of wetland vegetation is instable and susceptible to human interference in this area. Conversion rate of different Hemeroby index (HI) types from 1972 to 2013 trend is large. (2) dynamic changes of hemeroby degree are more likely to be attributed to natural, human and policy driving forces that are the results of the comprehensive effect. In 1972-2013, change of natural factors (mean annual evaporation, temperature and precipitation) and human factors (Livestock, population and GDP) lead to change of the distribution vegetation and Ebinur Lake area so that influence to natural degree of ecological system. (3) in 1972–2013, edge density (ED), mean shape index (MSI), area-weighted mean patch fractal dimension index (AWMPFD) and mean perimeter-area ratio four landscape pattern index significantly increased. However, regional landscape index is relatively stable, in 2013. (4) High values of edge density (ED), area weighted average patch fractal index (AWMPFD) distribution centers in area of high Hemeroby index. It shows that landscape patch fragmentation and complexity is higher in high HI area, its natural degree is instabile. Its low values are mainly concentrated in the area of low hermeroby index. It shows that landscape pattern index and hemeroby have good consistency and correlation in spatial distribution. Hemeroby was positively correlated with the edge density (ED), average shape index (MSI), area weighted average patch fractal index (AWMPFD), mean perimeter area ratio (MPAR) in a decreasing order of influence. Evaluation of ecological environment of Ebinur Lake Region provides a practical reference for the protection of the natural environment and resources, and beneficial for coordinated management of the environmental for sustainable development.
HTML 查看全文   查看/发表评论  下载PDF阅读器

您是本站第 60634082 位访问者

Copyright © 2005-2019   京ICP备06018880号
地址:北京海淀区双清路18号
  邮编:100085    电话:010-62941099
  E-mail : shengtaixuebao@rcees.ac.cn
本系统由北京勤云科技发展有限公司提供技术支持