TE
科技回声
首页24小时热榜最新最佳问答展示工作
GitHubTwitter
首页

科技回声

基于 Next.js 构建的科技新闻平台,提供全球科技新闻和讨论内容。

GitHubTwitter

首页

首页最新最佳问答展示工作

资源链接

HackerNews API原版 HackerNewsNext.js

© 2025 科技回声. 版权所有。

Wildfire restored a Yosemite watershed

333 点作者 incomplete将近 4 年前

18 条评论

01100011将近 4 年前
&gt; &quot;I think climate change is no more than 20 to 25% responsible for our current fire problems in the state, and most of it is due to the way our forests are,”<p>It&#x27;s refreshing to hear that. Human driven climate change is real and I&#x27;m not denying it, but we have to understand CA&#x27;s climate for what it is.<p>CA plants are uniquely adapted to fire and they serve as a testament to the history of fires in CA. Las Pilitas Nursery, which specializes in CA natives, has a nice writeup here: <a href="https:&#x2F;&#x2F;www.laspilitas.com&#x2F;advanced&#x2F;advecology.htm" rel="nofollow">https:&#x2F;&#x2F;www.laspilitas.com&#x2F;advanced&#x2F;advecology.htm</a><p>I find it especially interesting how the droughts typically preceding a fire suppress herbivore levels so that post-fire seedlings are protected from predators. It&#x27;s really amazing how our ecosystem has adapted to the challenges of our historical climate.
评论 #28124303 未加载
评论 #28123259 未加载
评论 #28123680 未加载
评论 #28123083 未加载
评论 #28124841 未加载
评论 #28123948 未加载
评论 #28123928 未加载
DoreenMichele将近 4 年前
Fire is part of the natural world. Trying to eradicate all forest fires tends to harm ecosystems. Some trees can&#x27;t reproduce without fires opening their pine cones.<p>I&#x27;m really happy to see this research. I am aware that climate change is real, but &quot;the news&quot; tends to focus on bad things.<p>It was predicted that the Kuwait oil well fires would burn for years and be a global environmental catastrophe. When crack teams converged on the area from around the world and put them out in just six months, we did not party in the streets over having averted a global catastrophe.<p>That&#x27;s part for the course. We routinely wring our hand about how bad we expect it to be, then take it for granted when emergency response exceeds our expectations and move on to whining about the next gloom and doom scenario.<p>I&#x27;m fully well aware that the next gloom and doom scenario is likely all too real and not neurotic overactive imagination at work. But it just sucks the oxygen out of the conversation when people act like it&#x27;s crazy talk if you aren&#x27;t part of the &quot;We&#x27;re all gonna <i>die</i>!!&quot; environmental belief cult.<p>Me thinking there is still hope, we can still find solutions, we aren&#x27;t all doomed is not evidence of insanity, stupidity, cluelessness or denial. I&#x27;m an environmental studies major. My father fought in WWII. The entire world was doomed then too and survived.<p>I know we need to somehow get people to take things seriously and actually take action. I just don&#x27;t think emphasizing how utterly doomed we are is the way to do that.<p>For lots of people, that will make them go &quot;Why bother? We&#x27;re doomed anyway. Me being all self sacrificing won&#x27;t fix it. I might as well enjoy myself a little before we all die and this world turns into a smoking husk.&quot;
评论 #28123520 未加载
评论 #28123819 未加载
1-6将近 4 年前
Wildfires are a bit like crop rotation in nature. I think we&#x27;re returning to the idea that wildfires aren&#x27;t a bad thing when done in a safe manner. Visiting Lassen National Park, there was a big area where it was nothing but blackened trees but an interesting caveat was that a lot of smaller trees were present in that same area.
评论 #28121312 未加载
评论 #28121082 未加载
评论 #28121947 未加载
评论 #28122634 未加载
评论 #28122775 未加载
评论 #28121709 未加载
评论 #28121546 未加载
davidw将近 4 年前
&gt; For millennia, wildfires sparked by lightning, or lit by Native American tribes, regularly shaped the landscape of the western U.S.<p>It&#x27;d be interesting to learn more about the differences between the two. There are places that don&#x27;t get a lot of lightning and would probably not burn that regularly on their own. So in those places a truly &#x27;natural&#x27; state would look different from a &#x27;managed by native peoples&#x27; state.
评论 #28121386 未加载
评论 #28121364 未加载
评论 #28121052 未加载
评论 #28121079 未加载
评论 #28121232 未加载
mbgerring将近 4 年前
M. Kat Anderson&#x27;s <i>Tending The Wild</i> details how the Yosemite indians warned Congress more than a century ago that it was a mistake to suppress fires in the national park and allow brush to build up on the forest floor. I can&#x27;t find the exact passage, but the entire book is worth reading.<p><a href="https:&#x2F;&#x2F;www.ucpress.edu&#x2F;book&#x2F;9780520280434&#x2F;tending-the-wild" rel="nofollow">https:&#x2F;&#x2F;www.ucpress.edu&#x2F;book&#x2F;9780520280434&#x2F;tending-the-wild</a>
jefftechentin将近 4 年前
&gt; the current fuel density in much of the Sierra, mixed with the hotter, drier conditions already triggered by climate change, has made managing wildfire even riskier than it was when forest managers started allowing fires to burn in Yosemite in 1972.<p>So if fire fighters and politicians do not want to start a burn policy now that there is so much fuel, why not log an area for a while then start burning? Is there something I am missing about the nature of the problem?
评论 #28122668 未加载
评论 #28122038 未加载
评论 #28122242 未加载
评论 #28122009 未加载
peanut_worm将近 4 年前
Here in Florida, prescribed burns are a common sight at the larger state parks. The burns are required to keep longleaf pine trees alive which support a lot of species of animals. Red-cockaded Woodpeckers in particular are very picky and prefer to live in these trees.<p>The burns kill all the competing vegetation and burns up some of the fuel in the area to prevent larger fires.
agentultra将近 4 年前
A now-rare ecosystem in Southern Ontario, Canada -- the oak savanna -- was the dominant ecosystem in the region until colonization started suppressing the cycle of wild-fires in the region. This enabled foreign invasive species to take hold and redefine the forest composition and character.
评论 #28121511 未加载
评论 #28122576 未加载
olivermarks将近 4 年前
Academic environmentalists have a lot to answer for imo<p><a href="https:&#x2F;&#x2F;www.theguardian.com&#x2F;us-news&#x2F;2019&#x2F;nov&#x2F;21&#x2F;wildfire-prescribed-burns-california-native-americans" rel="nofollow">https:&#x2F;&#x2F;www.theguardian.com&#x2F;us-news&#x2F;2019&#x2F;nov&#x2F;21&#x2F;wildfire-pre...</a>
评论 #28122781 未加载
评论 #28123494 未加载
systemvoltage将近 4 年前
&gt; “I think climate change is no more than 20 to 25% responsible for our current fire problems in the state, and most of it is due to the way our forests are,” Stephens said.<p>Directly in contrast with Gavin Newsom vs. Trump argument last year. I’m not aligned with Trump <i>at all</i>, but I have qualms about how we as liberals are easily strapped down by the media. Trump said “Mostly due to forest mismanagement” while Newsom said “With all due respect, Climate Change is the <i>fundamental reason</i> for forest fires”. I clearly remember how the <i>entire</i> media pounced on Trump. Not good.<p>We ought to isolate character from facts. If you challenged Newsom in any way last year, you would have been labeled a right-wing Trumper instantly.
评论 #28121596 未加载
评论 #28121779 未加载
fsckboy将近 4 年前
I wish the article was desensationalized a bit, but from what&#x27;s written it&#x27;s a pretty encouraging experiment.<p>I think the most important part is the virutuous combination that comes from allowing regular small fires to burn to help remove the conditions and prevent the catastrophes of the huge fires we&#x27;ve seen that come about because of the buildup of fuel debris, while at the same time providing the different ecological niches to reoccur side-by-side, the grasslands, meadows, shrubs, etc. instead of just a forest canopy.
France_is_bacon将近 4 年前
Everyone is noting that fire is good for California forests. Which is correct. Some trees actually depend on it, and seeds in the ground will wait for a fire before sprouting - I don&#x27;t know, a temperature change makes it happen, not sure.<p>But, what is happening is that there is SO much extra wood and flamable materials because of suppression, that it is actually TOO hot and the seeds get burned to ashes.
leafmeal将近 4 年前
I watched a well-made documentary recently that talks about fire management and controlled burns in California. I highly recommend it for anyone interested in forest ecology, fire, etc. <a href="https:&#x2F;&#x2F;www.amazon.com&#x2F;Not-If-But-When-Solutions&#x2F;dp&#x2F;B08FFDGJ1Y" rel="nofollow">https:&#x2F;&#x2F;www.amazon.com&#x2F;Not-If-But-When-Solutions&#x2F;dp&#x2F;B08FFDGJ...</a>
almost_usual将近 4 年前
Relevant talk by US Forest Service Researcher Paul Hessburg.<p><a href="https:&#x2F;&#x2F;youtu.be&#x2F;O6Vayv9FCLM" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;O6Vayv9FCLM</a><p><a href="https:&#x2F;&#x2F;www.fs.fed.us&#x2F;research&#x2F;people&#x2F;profile.php?alias=phessburg" rel="nofollow">https:&#x2F;&#x2F;www.fs.fed.us&#x2F;research&#x2F;people&#x2F;profile.php?alias=phes...</a>
allstunned将近 4 年前
I don&#x27;t think it is unreasonable for the state government to double the forest management&#x2F;firefighting budget annually until this is fixed.
评论 #28128426 未加载
HenryKissinger将近 4 年前
I&#x27;ve always found that the concept of natural parks was turned on its head. We basically allow human economic activities everywhere it&#x27;s physical possible, except in natural parks. It should be the opposite. All of the world&#x27;s landmasses should be designated as natural parks, except for specially designated &quot;human development areas&quot;.<p>Let&#x27;s stop trying to preserve patches of the natural world. Let&#x27;s start constraining human development in space.
评论 #28121564 未加载
评论 #28122776 未加载
评论 #28121473 未加载
评论 #28121218 未加载
评论 #28121228 未加载
50将近 4 年前
Only life is renewable, technology cannot and will not save us.
frozenlettuce将近 4 年前
I love the effort on spinning &quot;wildfires&quot; as a good thing - even calling them &quot;wildfires&quot; hides the human factor behind them. If a fire happens on North America on Europe, it&#x27;s a &quot;wildfire&quot;, if it happens on a developing country in the southern hemisphere, it&#x27;s a reason for international intervention. (I&#x27;m not claming that the former form of fire is good, but the hipocrisy on this is huge)
评论 #28121671 未加载
评论 #28122517 未加载
评论 #28122021 未加载