| 近30年四川小相岭山系植被景观变化分析 |
| |
| 引用本文： | 黄尤优,刘守江,王琼,马永红,田茂洁,胥晓.近30年四川小相岭山系植被景观变化分析[J].草业学报,2010,19(4):1-9. |
| |
| 作者姓名： | 黄尤优 刘守江 王琼 马永红 田茂洁 胥晓 |
| |
| 作者单位： | 西华师范大学生命科学学院,西南野生动植物资源保护教育部重点实验室,四川,南充,637002;西华师范大学国土资源学院,四川,南充,637002 |
| |
| 基金项目： | 四川省教育厅青年基金项目，四川省重点学科建设项目 |
| |
| 摘 要： | 选用小相岭山系１９７４，１９９４和２００２年３个时期的遥感图像数据，在实地调查的基础上，结合“优化监督分类法”将研究区域分为常绿落叶阔叶混交林、次生落叶阔叶林、针阔叶混交林、针叶林、亚高山灌丛草甸、高山灌丛、高山草甸、高山流石滩植被和高山永久冰雪带９类，并利用３Ｓ技术与景观生态学的数量分析方法，分别从景观和类型水平上定量分析了大熊猫栖息地小相岭山系植被景观在近３０ａ发生复杂相互转化的主要表现和动态变化特征，确定各植被类型具体的变化趋势与变化幅度。结果表明，１）近３０ａ区域内植被景观多样性与均匀度降低、连通性增强，各植被类型不再均匀地散布在整体景观中，逐渐产生优势植被类型，破碎化程度有所缓解。２）针阔混交林是小相岭的基质类型，与针叶林不断增加，并且前２０ａ增加了１４．２７％，增幅最大；亚高山灌丛草甸呈先增加后减少的变化趋势；高山灌丛则呈先减少后增加的变化趋势，并且前２０ａ下降了１１．０５％，减幅最大；而高山草甸３０ａ间景观基本保持不变。研究结果不仅可揭示该山系的景观分布结构和景观变化规律，而且也为当地植被生态环境的宏观保护提供参考依据。
|
| 关 键 词： | 景观变化 景观格局 植被景观 景观指数 小相岭山系 |
| 收稿时间： | 1900-01-01; |
Analysis on the landscape changes of the Xiaoxiangling Mountains in Sichuan Province during approximately 30 years |
| |
| HUANG You-you,LIU Shou-jiang,WANG Qiong,MA Yong-hong,TIAN Mao-jie,XU Xiao.Analysis on the landscape changes of the Xiaoxiangling Mountains in Sichuan Province during approximately 30 years[J].Acta Prataculturae Sinica,2010,19(4):1-9. |
| |
| Authors: | HUANG You-you LIU Shou-jiang WANG Qiong MA Yong-hong TIAN Mao-jie XU Xiao |
| |
| Institution: | HUANG You-you1,LIU Shou-jiang2,WANG Qiong1,MA Yong-hong1,TIAN Mao-jie1,XU Xiao1 (1.College of Life Sciences,China West Normal University,Key Laboratory of Southwest China Wildlife Resources Conservation,Ministry of Education,Nanchong 637002,China,2.Land and Resources College,China) |
| |
| Abstract: | Based on remote sensing data of 1974,1994 and 2002,the landscape changes of giant panda habitat in the Xiaoxiangling Mountains was quantitatively analyzed by combining 3S technology with quantitative analysis of the landscape ecology in this paper,and the mutual-transformational phenomena and dynamically changed characteristics which took place in the landscape of the Mountains in approximately 30 years were summarized by comparative analysis.At last,the concretely variation trend,the changing amplitude wer... |
| |
| Keywords: | landscape changes landscape pattern vegetation landscape landscape index Xiaoxiangling Mountains |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《草业学报》浏览原始摘要信息 |
| 点击此处可从《草业学报》下载免费的PDF全文 |
|
