文献类型：期刊文献

中文题名：沙坡头地区人工—自然景观中人类活动对景观格局动态的影响

英文题名：Impact of anthropogenic activity on landscape spatial pattern dynamics in man-made and natural landscapes in Shapotou desert area of Ningxia,China

作者：施维林[1];李自珍[2];王兮之[3]

机构：[1]绍兴文理学院生物系;[2]兰州大学干旱农业生态国家重点实验室;[3]北京师范大学生命科学学院

年份：2002

卷号：38

期号：6

起止页码：88

中文期刊名：兰州大学学报：自然科学版

收录：CSTPCD、、北大核心2000、Scopus、CSCD2011_2012、北大核心、CSCD

基金：国家自然科学基金资助项目 (30 0 70 139).

语种：中文

中文关键词：景观空间格局;荒漠;人工-自然景观;人类活动

外文关键词：landscape spatial pattern; desert;manmade and natural landscape; anthropgenic activity

中文摘要：借助对腾格里沙漠东南缘沙坡头地区人工—自然荒漠景观分类、格局分析及流动沙丘、荒漠和绿洲的景观格局分析及其景观多样性、优势度、斑块大小比较 ,阐明了荒漠景观中绿洲和人工防护林建设的积极作用 .结果表明 ,随着人类活动的加剧 ,景观的多样性增大 ,破碎化加剧 ,特别是铁路公路的建设以及为此而进行的防风固沙林的建设有效地保护了人类活动的成果 ;人为活动已改变了荒漠局地的景观特性 ,生态恶化受到一定的遏止 .但由于人类活动的经济目的性较强 ,因此人工景观中多样性值较低、斑块内容简单、形式单一 ,缺乏合理的布局和有效地管理和监测 ;沙化影响正在进一步威胁着人类对荒漠景观的管理成果 .

外文摘要：The important role of oasis and artificial forest in desert landscape was illuminated by means of classification and pattern analysis of diversity,donminance,and patch size of manmade and natural landscapes in Shapotou area of Ningxia,China.The results showed that the diversity and fragmentation of the landscapes are increasing with the increase of anthropogenic activity and that the construction of railway and sandfixing forest have effectively protected the achievement of human activity.Local desert landscape features have beeb changed by anthropogenic activity and the tendency of ecological worsening was held back to certain extent. Because of the strong economic goal of human activity,manmade landscape has lower diversity,simple patch types,and lack in proper redistribution and effective management and monitoring.Human management in the desert area is being threatened by desertification.