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徐州四维彩超哪儿有
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发布时间: 2025-06-02 05:38:29北京青年报社官方账号
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WASHINGTON (AP) — For much of the United States, invasive grass species are making wildfires more frequent, especially in fire-prone California, a new study finds.Twelve non-native species act as "little arsonist grasses," said study co-author Bethany Bradley, a University of Massachusetts professor of environmental conservation.Wherever the common Mediterranean grass invades, including California's southern desert, fires flare up three times more often. And cheatgrass , which covers about one-third of the Intermountain West, is a big-time fire promoter, Bradley said."I would not be surprised at all if invasive grasses are playing a role in the current fires but I don't think we can attribute to them directly," Bradley said.University of Utah fire expert Phil Dennison, who wasn't part of the study but says it makes sense, said, "In a lot of ways, California was ground zero for invasive grasses. Much of California's native perennial grassland was replaced by Mediterranean annual grasses over a century ago. This study doesn't look at invasive grasses in the areas that are burning in California, but invasive grasses are contributing to the fires there."Experts say the areas burning now in California are more shrubs and grasses than forests, despite what President Donald Trump tweeted over the weekend."This is a global problem," said University of Alberta fire expert Mike Flannigan, who wasn't part of the study but said it makes sense. "I think with climate change and human assistance we are moving to a grass world. One region they should have mentioned is Hawaii where wildfires are increasing in large part due to invasive grasses."Invasive species are spreading more because of climate change as warmer weather moves into new areas, said study lead author Emily Fusco, also of the University of Massachusetts. New England and the Mid-Atlantic are seeing new invasive and more flammable grasses, Bradley said.The study in Monday's journal Proceedings of the National Academy of Sciences looks at the connections between a dozen species of invasive grasses and fires nationwide, finding fires occur more often in places with the non-native grasses. But the study did not find a link between invasive grasses and the size of the fires.Four of these species, including cheatgrass and common Mediterranean grass, are in California. These grasses get dry and then watch out, Fusco said."When you start a fire normally you want kindling," Fusco said. "The grasses are, more or less, like kindling"If someone lights a match and throws in the middle of a forest, it is unlikely a fire will start, but throw it in a field of cheatgrass "and odds are that it's going to catch," Bradley said."We are the reason that invasive species are here. We are the reason that they get spread around," Bradley said.Flanagan noted that invasive plants that are not grasses also feed the wildfire problem.While most outside experts said the study was important, wildfire expert LeRoy Westerling at the University of California, Merced said that with wildfires the size is key so this study is less valuable because it measures frequency.While size matters in forest fires, study author Bradley said mid to small size fires are the ones "in everybody's backyard" and affect people and their buildings more. 3313

  徐州四维彩超哪儿有   

VISTA (CNS) - A 24-year-old man was behind bars today for reportedly crashing his car into a freeway work zone in the far northern reaches of San Diego County while drunk, injuring himself along with two construction crew members.Ross Rodgers, 24, was headed south on Interstate 15 near Mission Road in the unincorporated Rainbow community about 10:50 p.m.Sunday when his 2008 Toyota Prius veered over traffic cones and entered the closure area, where it hit the back end of a stationary 2008 Ford F-250, according to the California Highway Patrol.A worker behind the wheel of the pickup truck and a second one on foot nearby suffered apparently minor injuries in the wreck.Medics took the two men, ages 30 and 36, to Palomar Medical Center in Escondido for evaluations, CHP Officer Kevin Smale said. Rodgers was arrested on suspicion of drunken driving and transported to the same hospital for treatment of a broken bone in his right foot.Upon his release from medical care, the San Diego resident was booked into the county jail in Vista on suspicion of felony DUI.The crash led to intermittent closures of parts of the freeway in the area until about 5 a.m., Smale said. 1186

  徐州四维彩超哪儿有   

VISTA (CNS) - A man and woman were being sought Sunday after the man allegedly rammed and disabled a sheriff's deputy's patrol car while fleeing the scene of a theft at a 7-Eleven store.The theft happened at 2:10 p.m. and someone at the store began following the suspect who was driving a stolen car, according to Lt. William Amavisca of the sheriff's department.Deputies were notified of the theft and caught up to the suspect, who then rammed a deputy's vehicle on East Vista Way, Amavisca said. The deputy's vehicle was disabled. No injuries were reported.The suspect fled the scene and deputies later found the car abandoned and disabled, the lieutenant said. The driver and his female passenger apparently fled the scene on foot.A deputy recognized the man as having a felony arrest warrant, Amavisca said. 819

  

WASHINGTON — A bipartisan quartet of congressional leaders is pushing hard for a long-delayed COVID-19 aid package.A deal could come as early as Wednesday on legislation that would extend help to individuals and businesses and ship coronavirus vaccines to millions.Negotiations on COVID-19 relief have intensified after months of futility.The top Democratic and Republican leaders of Congress met twice Tuesday in hopes of finally cementing an agreement that would revive subsidies for businesses hit hard by the pandemic, help distribute new coronavirus vaccines, fund schools and renew soon-to-expire jobless benefits.Then Wednesday morning, Senate Majority Leader Mitch McConnell said he and Congressional leaders will not leave Washington for the holiday until a COVID-19 relief bill is passed.“The Democratic Leader and I worked into the evening alongside the Speaker of the House and the House Republican Leader," McConnell said on the Senate floor Wednesday. "We made major headway toward hammering out a targeted pandemic relief package that would be able to pass both chambers with bipartisan majorities."The Senate majority leader said money is needed not only for the American people suffering from the economic fallout caused by the pandemic, but to help re-up the Payment Protection Program and for vaccine distribution.“Congressional leaders on both sides are going to keep working until we get it done,” McConnell said.The Washington Post and Politico report the package would amount to nearly 0 billion in relief and may include a new round of stimulus checks, though the dollar amount for the possible direct payments isn’t yet known.The package would reportedly exclude aid for state and local governments, as well as leave out liability protections. Both were contentious items between Democrats and Republicans.The negotiators will be back at it early Wednesday as a government funding deadline looms Friday at midnight. 1951

  

WASHINGTON (AP) — Chances look slim for ending the partial government shutdown any time soon.House lawmakers are being told not to expect further votes this week, all but ensuring the shutdown will enter a second week and stretch toward the new year.Lawmakers are away from Washington for the holidays and have been told they will get 24 hours' notice before having to return for a vote. And although both the House the Senate were slated to come into session briefly Thursday afternoon, few senators or representatives were expected to be around for it.President Donald Trump is vowing to hold the line on his demand for money to build a border wall. Back from the 29-hour trip to visit U.S. troops, Trump tweeted Thursday that "we desperately need" a wall on the Mexico border, funding for which has been a flashpoint between the White House and Congress ever since Trump took office.He called on Democrats in Congress to fund his wall, saying the shutdown affects their supporters. He asserted without evidence: "Do the Dems realize that most of the people not getting paid are Democrats?"Virginia Democratic Sen. Mark Warner called Trump's comments "outrageous." In his tweet, he added: "Federal employees don't go to work wearing red or blue jerseys. They're public servants. And the President is treating them like poker chips at one of his failed casinos."After a weekend and two holiday days for federal employees, Wednesday was the first regularly scheduled workday affected by the closure of a variety of federal services. A brief statement Thursday from the office of Louisiana Rep. Steve Scalise, the No. 3 Republican, spoke to the dim prospect for a quick solution. "Members are advised that no votes are expected in the House this week," the statement said. "Please stay tuned to future updates for more information."The shutdown started Saturday when funding lapsed for nine Cabinet-level departments and dozens of agencies. Roughly 420,000 workers were deemed essential and are working unpaid, while an additional 380,000 have been furloughed.While the White House was talking to congressional Democrats — and staff talks continued on Capitol Hill — negotiations dragged Wednesday, dimming hopes for a swift breakthrough.Republican Rep. Mark Meadows of North Carolina, a Trump ally who has been involved in the talks, said the president "is very firm in his resolve that we need to secure our border." He told CNN, "If they believe that this president is going to yield on this particular issue, they're misreading him."The impasse over government funding began last week, when the Senate approved a bipartisan deal keeping government open into February. That bill provided .3 billion for border security projects but not money for the wall. At Trump's urging, the House approved that package and inserted the .7 billion he had requested.But Senate Republicans lacked the votes they needed to force the measure through their chamber. That jump-started negotiations between Congress and the White House, but the deadline came and went without a deal.The shutdown has been playing out against the backdrop of turmoil in the stock market.Kevin Hassett, the chairman of the White House's Council of Economic Advisers, said the shutdown does not change the administration's expectation for strong growth heading into 2019. He told reporters a shutdown of a few weeks is not going to have any "significant effect on the outlook."Among those affected by the shutdown — the third of 2018 — are the departments of Homeland Security, Transportation, Interior, Agriculture, State and Justice. Those being furloughed include 52,000 workers at the Internal Revenue Service and nearly everyone at NASA. About 8 in 10 employees of the National Park Service are staying home, and many parks have closed.The shutdown didn't stop people from visiting the White Sands National Monument in southern New Mexico, where hundreds of unauthorized visitors have in recent days climbed over a fence to enter the monument, according to The Alamogordo Daily News. State highway workers were sent to the area Monday to erect "no parking" signs along U.S. 70 outside the monument.Trump has claimed federal workers are behind him in the shutdown fight, saying many told him, "stay out until you get the funding for the wall.'" He didn't say who told him that. Many workers have gone to social media with stories of the financial hardship they expect to face because of the shutdown.One union representing federal workers slammed Trump's claim. Paul Shearon, president of the International Federation of Professional and Technical Engineers, said the union has not heard from a single member who supports Trump's position."Most view this as an act of ineptitude," he said.___Superville reported from al-Asad Air Base in Iraq. Associated Press writers Zeke Miller in Washington and Paul Davenport in Alamogordo, New Mexico, contributed to this report. 4945

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