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人类在火星上登陆的一个主要障碍已经被克服：钻探水源。_我的网站

海边的曼彻斯特

A | 据《北京时间》1月9日报道，第一批登上火星的宇航员面临的最大障碍之一是缺水。人们需要水来喝，农作物需要水来生长，甚至制造火箭燃料返回地球。

A group of Chinese egrets on Fantuozi Island in Dalian, Northeast China's Liaoning Province Photo: Courtesy of Changhai County People's Government
At 5 am, Wang Piyu, deputy director of the Changhai County Natural Resources Affairs Service Center, sets out by patrol boat for Fantuozi Island, a core breeding site for Chinese egrets in the Changshan Archipelago, Northeast China's Liaoning Province. The island has no permanent residents.
About 100 meters from the island, Wang turns off the engine and reminds accompanying researchers to keep their voices low to avoid disturbing the nesting birds.
Stepping onto the island, they walk along paths covered with vines. Scattered across the rocky slopes are nests measuring 40 to 50 centimeters in diameter. Inside, fluffy chicks huddle together among soft grass woven into nests, while adult birds perch high in the trees, watching cautiously.
"This was not what the island looked like 10 years ago," Wang recalled. "People used to collect eggs here, and coastal aquaculture polluted the tidal flats. Many parts of the island were bare, leaving little vegetation for birds to nest."
The recovery of Changshan Archipelago, however, has turned the remote archipelago into an important link in global conservation efforts.
At the 48th session of the UNESCO World Heritage Committee in Busan, South Korea, the boundary modification of the Migratory Bird Sanctuaries along the Coast of Yellow Sea-Bohai Gulf of China was approved, officially adding the Changshan Archipelago to the World Heritage site.
The expansion further strengthens the integrity of the serial natural heritage site, following a previous update in 2024, and highlights China's efforts to integrate coastal ecosystem conservation, according to the National Forestry and Grassland Administration.
Behind the World Heritage recognition lies years of conservation work involving local authorities and island residents.
An aerial view of Changshan Archipelago in Liaoning Province Photo: VCG

An aerial view of Changshan Archipelago in Liaoning Province Photo: VCGBuilding a bird haven
Located in the northern Yellow Sea off Dalian, the Changshan Archipelago sits along a key route of the East Asian-Australasian Flyway, providing an essential stopover where tens of millions of migratory birds replenish their energy during their journeys across the Bohai Sea.
The newly added area covers more than 4,900 hectares and is home to more than 140 recorded bird species, including the Chinese egret and black-faced spoonbill, both listed as China's national first-class protected animals.
In 2015, more than 300 Chinese egrets arrived in Changhai county. After discovering the birds, local authorities introduced a series of protective measures, including establishing patrol teams and installing remote monitoring systems to reduce human disturbance.
However, the growing bird population also created new challenges.
Less than half of Fantuozi Island was covered by shrubs, which serve as the nesting grounds for the egrets. Additionally, the island's poor soil and acidification caused by years of accumulated bird droppings had led to the withering and death of some shrubs in recent years.
From 2022, the county launched an ecological restoration project, replacing surface soil with fertile earth and planting more than 2,200 shrubs.
The efforts helped restore the breeding habitat. The number of Chinese egrets on the island has since recovered, with this year's population estimated at about 3,500, including around 1,500 adults and nearly 2,000 chicks, according to Lü Yongquan, director of Changhai county's natural resources bureau.
"Chinese egrets are highly sensitive to water quality, vegetation and human disturbance. Their return to breed here is a sign that the marine ecosystem has recovered and is thriving," Lü told the Global Times.
From fishermen to guardians
Conservation in Changhai is not only carried out by authorities. Local communities have also gradually become part of the protection network.
Authorities have expanded public awareness campaigns and strengthened patrols. Because most of the Changshan Archipelago is uninhabited, drones, fixed-point infrared cameras, and on-site inspections are used to monitor the islands and reefs around the clock.
Many fishermen who once relied on the sea for their livelihoods now help protect it.
During the peak breeding season from April to July, regular marine patrols are carried out to protect nesting sites and prevent illegal egg collection and habitat damage. Local bird conservation groups and research institutions have also joined the efforts, while fishermen have taken on new roles as volunteer guardians of the islands.
Across Changhai county, many fishermen now actively participate in coastal patrols to help protect the archipelago's biodiversity.
For Li Qingsen, a 50-year-old island native and member of the county's forest fire brigade, protecting the birds has become a way of life.
From spring to autumn, 20 team members take turns staying on Fantuozi Island in pairs to protect the birds from disturbance.
Life on the 0.08-square-kilometer island is far from easy. There are no freshwater sources or docks. Patrol workers carry large barrels of water and wade ashore from boats anchored offshore. Instant noodles are often their main food because they require little preparation and some water.
Their work is closely tied to the seasonal cycle of the birds. Each April, thousands of Chinese egrets arrive in the archipelago from Southeast Asia to breed and rear their young, staying until early September before migrating south for the winter.
At present, young egrets are already practicing flight above the treetops. By autumn, they will join their parents in a southward migration.
For Wang, who has spent half of his life guarding Fantuozi Island, the World Heritage recognition is both a homecoming for the birds and a reward for years of protection. "Now, it is a home for the birds, and a reward for all the years we have spent protecting it."
。因此，缺乏可用的液态水是人类登陆火星的主要障碍。但是火星上有很多冰。

B | 美国宇航局的一项新研究表明，我们可以在冰上钻孔，以获得足够的水来维持火星上的人类生命。去年，在火星表面下发现了冰川，这一重大发现为第一批宇航员登陆火星提供了“取之不尽，用之不竭”的水。

C | 研究人员说，在火星上的8个地方发现了地下冰川，有些位于地表以下几英尺（1米）的深处，还有一些位于地表以下100米或更深处。研究人员分析了火星勘测轨道飞行器收集的数据，发现地下冰川的成分“几乎是纯冰”。

D | 美国宇航局的一项研究模拟了钻冰和融化冰从冰川中取水的过程。德克萨斯州航空航天公司（Aerospace Corporation）的高级执行官斯蒂芬霍夫曼（Stephen Hoffman）领导的研究人员说：“火星表面曾经有很多水，但现在人们一致认为火星表面非常干燥。几项研究表明，火星的许多地方都有丰富的水资源，包括那些被认为是人类在火星上登陆的替代着陆点的地方。如果这些水资源可以用于载人登陆火星，那么执行这些任务的方式将发生巨大变化。研究小组考虑使用一个名为罗德井的水库，这个水库是在20世纪60年代发明的，并被用于在偏远地区提供水源，例如阿蒙森-斯科特南极勘测站。

E | 研究小组写道：“对现有的从地下冰川中提取水的技术进行评估，我们发现了一种可以从火星中提取水的技术：在火星冰川覆盖的表面上钻孔，加热冰以形成地下水库。”罗德井的原理是从表面钻孔，钻孔进入冰中，通过融化冰形成一个水库，然后从水库中提取水。通过不断加热储液罐，可以获得稳定的液态水。在火星上，一口罗德井一天能产生380升的水。这相当于美国人每天人均用水量，但大约是国际空间站宇航员用水量的10倍。

F | 研究人员说，火星探测器可以改装成具有钻井能力。根据最近在《科学》杂志上发表的一篇文章，尽管冰在火星上早已为人所知，但更好地了解冰的深度和分布对于未来载人登陆火星至关重要。亚利桑那大学月球和行星实验室的研究员肖恩·伯恩说：“水对任何地方的人来说都是必不可少的，随身携带是非常不方便的。”“以前，我们设想在火星上获取水的方法是从空气或岩石中获取水，”伯恩说。现在，我们想象从火星表面以下的冰中获取水。不需要高科技的解决方案，只要一桶水就够了。水源靠近火星上的人类登陆点，而不是极地。火星南半球和北半球有地下冰川，纬度在55到58度之间。研究人员认为，这些冰川形成相对较晚，因为其表面相对平坦，没有受到其他天体撞击形成的撞击坑。冰川靠近极地地区，火星上的冬天非常寒冷，不适合人类长期生存。