岷山北部大熊猫栖息地破碎化研究  

A study on giant panda habitat fragmentation in north minshan mountains

作　　者：凌林[1] 王颖[1] 刘世昌[1] 冉江洪[1] 岳碧松[1] 

机构地区：[1]四川大学生命科学学院生物资源与生态环境教育部重点实验室,成都610064

出　　处：《四川大学学报（自然科学版）》2010年第2期387-392,共6页Journal of Sichuan University(Natural Science Edition)

基　　金：世界自然基金会(WWF)资助项目(1596;1704;1748)

摘　　要：以全国第三次大熊猫调查数据和2005～2007年的野外调查数据为基础,利用地理信息系统、遥感软件和景观格局分析软件,对岷山北部区域大熊猫生境的分布、适宜性和空间格局进行了分析,结果表明:(1)在岷山北部791445.51 hm^2的研究区域内,大熊猫潜在生境的面积为91129.14 hm^2,由于人为活动的影响,实际生境面积仅为89113.5 hm^2,占研究区域总面积的11.26%;(2)在大熊猫实际生境中,适宜栖息地面积占30.4%,最适合大熊猫取食的竹类盖度(大于50%)的竹林面积仅占实际生境的20.2%;(3)大熊猫生境景观指数分析显示,生境内斑块数量多,斑块平均面积小,栖息地破碎化程度高.鉴于岷山北部地区大熊猫生境自然条件较差,大面积的生境不能被大熊猫有效利用,需要加强对该区域适宜生境的保护,同时加强植被的恢复与改造,以提高大熊猫生境的连通性和适宜性.Based on the data of the Third National Survey and 2005~2007 field survey, using the GIS and RS softwares,the distribution, suitability and spatial pattern of giant panda habitat in North Minsban Mountains were studied. It was found that： （1） The potential habitat of giant panda in this region covered 91129.14 hm2. However, affected by the human activities the factual habitat was only 89113.5 hm2, accounting for 11.26% of the total survey area. （2） Only 30.4% of the factual habitat was most suitable for giant panda, and the area of pandas＇ preferred bamboos （coverage above 50%） was about 20.2%. （3） The landscape indexes showed that the giant panda habitat in this area was in a considerable fragmented situation, being separated into a great many patches, the average area of which was quite small. As for this condition, protection and management measures for the giant panda and its habitat were proposed.

关 键 词：大熊猫 岷山北部 生境适宜性评价 景观格局 生境破碎化 

分 类 号：Q142[生物学—生态学]