作者：百年不渡 分类：未来幻想 点击：7839599次 下载：9086024次 大小：70M 日期：2026-08-26
银
牦牛闯入黄龙五彩池，是否破坏钙华？景区回应_我的网站
一 | 【文/观察者网 宰可欣】
2026年8月26日，黄龙国家级风景名胜区管理局在公众号上对网传牦牛闯入黄龙五彩池作出回应，情况通报如下：
8月25日15时11分，景区巡护人员发现4头牦牛进入五彩池区域，随即温和引导驱离，15时22分牦牛全部离开该区域，无人员受伤，游览秩序正常。
Coronavirus is on the rise in the U.S., prompting questions about when Americans can roll up their sleeves for the next COVID-19 vaccine.
COVID-19 hospitalizations have been increasing for six straight weeks. While levels remain far below previous coronavirus waves in the U.S., it’s still the first increase since winter, and it has even prompted the return of mask mandates for a handful of businesses and schools.
The Biden administration estimates that 97% of Americans ages 16 and over have some level of COVID-19 immunity through vaccination, previous infection or both. The number may sound promising – so why do people need another round of shots? Because that protection can fade in a matter of months, leaving individuals vulnerable to COVID-19 once again.
“Immunity is stronger today than at any other point in the outbreak,” Mandy Cohen, the director of the Centers for Disease Control and Prevention, said in a recent video statement. “That means we're moving towards COVID-19 being a more manageable illness with less severe illness. Having antibodies is like a shield, but we still need to be cautious because that protection does decrease over time.”
When Will the Shots Be Available?
Rollout of the shots is expected in mid-September, according to officials with the CDC and the Food and Drug Administration.
The shots from Moderna, Pfizer and Novavax first need authorization from the FDA. After that, the CDC’s committee of outside vaccine experts will gather to recommend who should be eligible for the shots. That meeting is scheduled for Sept. 12. Then, the CDC director must sign off on the recommendations before shots can be administered.
For undervaccinated or unvaccinated Americans – especially those who are at high risk for severe disease – Cohen says it might be best for them to roll up their sleeves now for the shots that are currently available.
“Those who have never been vaccinated and then some people who are older and at higher risk for a COVID infection might be best to get the existing COVID shot now and not wait,” Cohen said, noting that individuals should talk to their doctor first.
But Cohen added that “if you do get the current COVID-19 vaccine now or in early September, it could delay your ability to get this updated vaccine that's coming out in the middle of September.”
Will the Updated Boosters Work on New Coronavirus Variants?
The updated shots target XBB.1.5, which was responsible for less than 5% of new coronavirus infections in recent weeks.
The variant scene has changed significantly since the Biden administration advised vaccine makers to target the XBB strain in June. Now, EG.5, or “eris,” is the dominant strain circulating, causing over 20% of new cases.
But all the strains circulating are still descendants of omicron, so experts believe the shots will still protect against severe COVID-19 from the variants.
A Biden administration official told reporters last week, “FDA expects that once available, the updated vaccines will similarly provide protection against the most serious outcomes of the disease that may result from currently circulating variants.”
Additionally, experts are keeping a close eye on how BA.2.86, a new strain that is highly mutated, could affect the shots.
“The CDC is closely tracking a new variant which does have a number of changes or mutations that do make it distinct and different from the older versions of the virus,” Cohen said. “So we're working as fast as we can to understand this new variant and what impact it might have on how severe the COVID disease will get or how well our vaccines work against it.”
Will the New COVID-19 Shot Be Free?
Most Americans will receive the shot cost-free through their insurance. For uninsured Americans, the Biden administration is working on a program that will offer free shots at pharmacies. That program might not be available on the same day the shots are authorized but is expected to be up and running within a couple of weeks of the date.
Uninsured Americans will have immediate access to the shots for free at community health centers and individual providers as soon as they roll out.
How Many People Will Get a Booster Shot?
Historically, vaccine uptake decreases each time a new coronavirus shot is offered.
Just 17% of Americans as of May rolled up their sleeves for the latest round of shots offered. That’s a steep drop from the first shot, which saw 81% of the population roll up their sleeves.
But there are reasons to be hopeful that uptake of the shots could be higher this time around. A survey from KFF found that more than half of adults said they are likely to get another COVID-19 booster shot if it’s offered annually like the flu shot.
。经核查，系上游禁牧围栏遭人为破坏所致，已向景区派出所报案，案件正在调查。
视频截图
经地质专家现场评估：牦牛扰动造成局部水体短时浑浊，为短期可逆影响，水体藻类预计一周内恢复；钙华本体结构扰动轻微，轻微创面可通过自然沉积数月内完成修复。
二 | 此次事件暴露出管护工作存在短板，我们诚恳向公众致歉。下一步将全面排查防护设施，强化巡护值守，完善应急处置预案，严防同类事件重演。 据《人民日报》报道，黄龙于1992年列入《世界自然遗产名录》，以“彩池、雪山、峡谷、森林、滩流、古寺、民俗”七绝著称于世。联合国教科文组织评价其“具有绝妙的自然现象或罕见自然美的地区”，被认定为全球三大钙华梯田景观典范之一。
三 | 饱含碳酸钙的岩溶水在流动中二氧化碳逸出、碳酸钙沉积形成的层叠状石灰华景观，就是钙华。 “黄龙钙华纯度可以达到99%以上，是极高纯度的一种钙，”四川省地质环境调查研究中心高级工程师刘馨泽解释说，“钙华形成的条件比较严苛，需要很特别的‘源水’。
四 | 黄龙处于青藏高原东缘，水体受高山冰雪融水补给，纯度高，颜色才好，结构才精巧。
五 | ” 然而，除了地表水减少，钙华沙化黑化等问题客观存在，保护还面临着一些困难。在2020年，央视新闻就报道过一则“多名游客踩踏黄龙景区钙华，破坏无法修复”的新闻。
六 | 在采访中，四川省地矿局一〇八地质队副队长李德华介绍，钙华形成速度较慢且十分脆弱，形成速度每一年最多的也就是几个毫米。 不仅如此，首先，游客下去踩钙华滩，会造成一种很不好的社会影响，别的游客看到这些游客下去，可能竞相效仿。 第二，下去之后，原有的平衡打破了，把钙华破坏掉，根据人的轻重，破坏的程度可能不一样，但是，绝对改变了原生的层结结构关系。在九寨沟范围内，山水是融为一体的，人下去之后，人体所带的一些物质，可能也会对水质、环境有一定影响。 最重要的是，钙华滩在岁月沉淀下形成，无论是“牦牛踩踏”还是“人为踩踏”，问题的重点都不是通过比较“谁会带来更大的影响”，来判断谁更“有资格”进入钙华滩。两者的本质都是对脆弱地貌的破坏，如何杜绝这样的破坏才是问题的关键。返回，查看更多。
Current article:http://2yd2r.diaoengngtengdiachanpiezao.sbs/list_d96tgti/mdfhb.html
Published on:04:33:14
