G2TT
来源类型Articles
规范类型论文
DOI10.1046/j.1365-2028.2002.00355.x
ISSN0141-6707
Changes in Miombo woodland cover in and around Sengwa Wildlife Research area, Zimbabwe, in relation to elephants and fire
Casson, A.
发表日期2002
出处African Journal of Ecology 40: 212-219
出版年2002
语种英语
摘要

One of the consequences of impacts of elephants and fire on woodlands is a change in woody cover, which often results in major challenges for wildlife managers. Changes in miombo woodland cover in and around Sengwa Wildlife Research Area (SWRA) between 1958 and 1996 were quantified by analyzing aerial photographs. Woody cover in SWRA decreased from 95.2% in 1958 to 68.2% in 1996, with a lowest mean of 62.9% in 1983. The annual absolute rate of woody cover change in SWRA increased from -1.1% perannum between 1993 and 1996, while the annual relative rate increased from -1.1% per annum between 1958 and 1964 to 3.3% per annum between 1993 and 1996. There was a strong negative correlation between elephant densities and woody cover in SWRA, suggesting that loss of woody cover was mainly due to elephants. Woodland recovery after 1983 was due to reductions in elephant populations through legal and illegal off-take and reductions in fire frequency. Surrounding areas experienced less woody cover losses than SWRA, mainly due to tree removal by locals whose densities increased after the eradication of tsetse fly in the 1970s.

主题fire ; forest fires ; woodlands ; elephants ; change
区域Zimbabwe
URLhttps://www.cifor.org/library/1139/
来源智库Center for International Forestry Research (Indonesia)
引用统计
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/90263
推荐引用方式
GB/T 7714
Casson, A.. Changes in Miombo woodland cover in and around Sengwa Wildlife Research area, Zimbabwe, in relation to elephants and fire. 2002.
条目包含的文件
文件名称/大小 资源类型 版本类型 开放类型 使用许可
01416707.jpg(3KB)智库出版物 限制开放CC BY-NC-SA浏览
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Casson, A.]的文章
百度学术
百度学术中相似的文章
[Casson, A.]的文章
必应学术
必应学术中相似的文章
[Casson, A.]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 01416707.jpg
格式: JPEG

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。