非洲南部林地木材的可持续采伐:未来的挑战

C. Geldenhuys
{"title":"非洲南部林地木材的可持续采伐:未来的挑战","authors":"C. Geldenhuys","doi":"10.1080/10295925.1997.9631140","DOIUrl":null,"url":null,"abstract":"SYNOPSIS Woodlands covered > 50% of the land area in southern Africa, but only 57% remain today and only 7% occur in protected areas. Mean population density in the region is 17 people/km2 and urbanisation is increasing. In several countries subsistence agriculture is still the main contributor to the GDP. The main challenge in the region is to develop a sustainable contribution to the industry and service sectors of the economy from the woodland resources while improving the conservation status of the vegetation resources. A wide range of timber and non-timber products are harvested from the woodlands, often with no concern for the maintenance of the resource, or to optimise and economise the utilisation of the trees that are felled, or to pursue multiple-use systems. Very few species are utilised, and some of the harvested species are relatively rare, or are over-utilised, and the management systems to not favour their regeneration. Sustained-use management of woodlands require the maintenance of 1) the...","PeriodicalId":228456,"journal":{"name":"The Southern African Forestry Journal","volume":"58 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Sustainable Harvesting of Timber from Woodlands in Southern Africa: Challenges for the Future\",\"authors\":\"C. Geldenhuys\",\"doi\":\"10.1080/10295925.1997.9631140\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"SYNOPSIS Woodlands covered > 50% of the land area in southern Africa, but only 57% remain today and only 7% occur in protected areas. Mean population density in the region is 17 people/km2 and urbanisation is increasing. In several countries subsistence agriculture is still the main contributor to the GDP. The main challenge in the region is to develop a sustainable contribution to the industry and service sectors of the economy from the woodland resources while improving the conservation status of the vegetation resources. A wide range of timber and non-timber products are harvested from the woodlands, often with no concern for the maintenance of the resource, or to optimise and economise the utilisation of the trees that are felled, or to pursue multiple-use systems. Very few species are utilised, and some of the harvested species are relatively rare, or are over-utilised, and the management systems to not favour their regeneration. Sustained-use management of woodlands require the maintenance of 1) the...\",\"PeriodicalId\":228456,\"journal\":{\"name\":\"The Southern African Forestry Journal\",\"volume\":\"58 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Southern African Forestry Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/10295925.1997.9631140\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Southern African Forestry Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10295925.1997.9631140","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8

摘要

森林覆盖了非洲南部50%以上的土地面积,但今天仅保留了57%,只有7%出现在保护区内。该地区平均人口密度为17人/平方公里,城市化程度不断提高。在一些国家,自给农业仍然是国内生产总值的主要贡献者。该区域面临的主要挑战是如何利用林地资源对工业和经济服务部门作出可持续的贡献,同时改善植被资源的保护状况。从林地中收获各种各样的木材和非木材产品,通常不关心资源的维护,或优化和节省砍伐树木的利用,或追求多用途系统。很少有物种被利用,一些收获的物种相对稀少,或者被过度利用,管理系统不支持它们的再生。林地的持续利用管理需要保持1)……
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Sustainable Harvesting of Timber from Woodlands in Southern Africa: Challenges for the Future
SYNOPSIS Woodlands covered > 50% of the land area in southern Africa, but only 57% remain today and only 7% occur in protected areas. Mean population density in the region is 17 people/km2 and urbanisation is increasing. In several countries subsistence agriculture is still the main contributor to the GDP. The main challenge in the region is to develop a sustainable contribution to the industry and service sectors of the economy from the woodland resources while improving the conservation status of the vegetation resources. A wide range of timber and non-timber products are harvested from the woodlands, often with no concern for the maintenance of the resource, or to optimise and economise the utilisation of the trees that are felled, or to pursue multiple-use systems. Very few species are utilised, and some of the harvested species are relatively rare, or are over-utilised, and the management systems to not favour their regeneration. Sustained-use management of woodlands require the maintenance of 1) the...
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Comment to Editor Better utilisation of the skidder winch can decrease the overrun on the logging site Pinus patula establishment problem associated with poor ectomycorrhizal development in previously cultivated soils Prices of charcoal at various distances from Kampala and Dar es Salaam 1994–1999 A non-destructive sampling method for dendrochronology in hardwood species
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1