Diverse forests are stronger against drought North Island farmers lose 100,000 lambs after spring storm Germany is razing a 12,000-year-old forest to make way for a coal mine বইছে আশ্বিনী দাবদাহ, বৃষ্টি কবে? I went trash free for a day বাংলাদেশে প্লাস্টিক দূষণ এবং পরিবেশের উপর তার প্রভাব পরিবেশের দূষণের বছরে ক্ষতি সাড়ে ছয় শ কোটি ডলার: বিশ্বব্যাংক Drought-stricken farmers challenge Coalition’s climate change stance in TV ad Is Climate Change Making Hurricanes Worse? Yes, Here’s Why. Off Tanzania, in one of the world’s richest seas, why is the catch getting smaller?

Low-Severity Wildfires Impact Soils More Than Previously Believed


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Low-severity wildland fires and prescribed burns have long been presumed by scientists and resource managers to be harmless to soils, but this may not be the case, new research shows.

Low-severity wildland fires and prescribed burns have long been presumed by scientists and resource managers to be harmless to soils, but this may not be the case, new research shows.

According to two new studies by a team from the University of California, Merced (UCM) and the Desert Research Institute (DRI), low-severity burns – in which fire moves quickly and soil temperature does not exceed 250oC (482oF) – cause damage to soil structure and organic matter in ways that are not immediately apparent after a fire.

“When you have a high-severity fire, you burn off the organic matter from the soil and the impact is immediate,” said Teamrat Ghezzehei, Ph.D., principal investigator of the two studies and Associate Professor of Environmental Soil Physics at UCM. “In a low-severity fire, the organic matter doesn’t burn off, and there is no visible destruction right away. But the burning weakens the soil structure, and unless you come back at a later time and carefully look at the soil, you wouldn’t notice the damage.”

read more: https://www.enn.com/articles/55385-low-severity-wildfires-impact-soils-more-than-previously-believed

Posted by on Sep 11 2018. Filed under Forest & Land, News at Now, News From Roots. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

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