网站大量收购闲置独家精品文档,联系QQ:2885784924

Ecological Effects of Fire School of Forest Resources 森林火灾学校的生态效应.ppt

Ecological Effects of Fire School of Forest Resources 森林火灾学校的生态效应.ppt

  1. 1、本文档共33页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
Are all fires created equal? Fire regime characteristics dictate fire effects on wildlife What are the fire regime components? Type Season Area burned/ extent Intensity Severity Frequency Synergy Break Fire Effects on Water Water quality may temporarily change: Increases: sediments – soil particles organic detritus turbidity nutrients – especially N, C, bicarbonates of Ca, Mg K water temperature Decreases: aquatic habitat depends on size of fire little evidence of long term habitat deterioration Usually within natural range of variation and/or short-lived effects Fire Control Effects on Water Fire retardants N P into water Some toxicity to fish Fire lines Connect water bodies Create channels Effects on Water - Summary Cumulative effects may include: changes in stream channel morphology organic matter food sources for aquatic fauna amount timing of peak flows …… Properly planned prescribed burn will generally not adversely affect either quality or quantity of ground or surface water in Florida * * * * * * * * * * * * * * * * * * * * * * * * * * * * Plan for Today (2/25/11) Weekly meteorologist Derek Jones Lecture: Fire effects on wildlife, intro. Guest lecture, Louise Venne- fire effects on wading birds in the Everglades Lab: Burn at ACMF? Wildlife and Fire Fire Ecology and Management, 2011 An introduction Adapted from Deborah Kennard Ecological Effects of Fire Basic Premises All ecosystems change over time Fire is neither innately good nor bad; it is just an agent of change Human perception of whether it is good or bad depends on resource objectives Do people think fire is good for wildlife? Even Smokey’s (and his friends’) perceptions vary Light Fire’s Effects on Wildlife Most animal species respond predictably to the passage of fire, although the responses vary among species. Some flee, seek refuge, or rescue young. Other species are attracted to burning areas (forage during fires or feed on charcoal and ash after fires). Effects on Animals: Genera

您可能关注的文档

文档评论(0)

chenchend + 关注
实名认证
内容提供者

该用户很懒,什么也没介绍

1亿VIP精品文档

相关文档