时而潺潺细流，时而奔腾咆哮 Trickle, babble, or roar
World Rivers Day
If you are a nature enthusiast, or simply enjoy listening to the sound of rumbling rivers, you might like to know that today is World Rivers Day. First held in 2005 during the United Nations' 'Water for Life’ campaign, it was proposed by Canadian river conservationist Mark Angelo, who founded BC Rivers Day in western Canada in 1980. World Rivers Day is held on the fourth Sunday of September to celebrate and raise awareness of the benefits that rivers provide to people and the planet.
The star of today's image, the Fraser River, is the longest river in British Columbia and the 11th longest in Canada. The stream meanders from the Rocky Mountains, traveling more than 850 miles over slopes and flatlands before it merges with the Strait of Georgia, just south of Vancouver.
河湾 Staying in the loop
Moselle River loop near Kröv, Germany
The Moselle River, a tributary of the powerful Rhine, meanders through the landscapes of France, Luxembourg, and Germany. Along the way, it carves out valleys of breathtaking natural beauty, dotted with towns and historic landmarks. Lush, sun-drenched vineyards cling to the steep slopes overlooking the river, producing some of the finest wines in the world, including riesling, pinot blanc, and pinot gris, to name a few. The river's gentle flow and sparkling waters invite visitors to embark on leisurely cruises or peaceful walks along its shores. The Moselle creates a haven for nature lovers, wine enthusiasts, and history buffs alike.
大自然的蓝色奇观 Nature's blue wonder
Steyr River, Austria
These whitewater rapids are found in Upper Austria, where the Steyr River crashes down from the barren Totes Gebirge (the Dead Mountains) through this verdant landscape. When it comes to the ancient town of Steyr, at the foot of the Alps, it will meet the Enns River, which flows into the Danube.
What gives the Steyr that stunning blue hue? The answer is found in the mountains themselves. When there's rainfall or the surrounding snow melts, eroded sediment flows into the river. Heavier sediment sinks to the bottom and finer sediment stays suspended in the water. Sunlight is scattered or reflected by the sediment, allowing us to see a vibrant shade of blue, as the Steyr crashes through this lush landscape.
Aura River in Turku, Finland
The Turku Cathedral rises above the frosted forests near the mouth of the Aura River, which runs through the middle of Turku, Finland.
Originally built out of wood in the late 13th century, the cathedral was expanded in the 14th and 15th centuries, mainly using stone as construction material. This would prove wise, as the Great Fire of Turku consumed much of the city in 1827 and badly damaged the cathedral. It was rebuilt over the next few years.
Virgin River in Zion National Park
Our photo brings us to a 16-mile stretch of the Virgin River where it cuts a spectacular thousand-foot-deep gorge through the upper reaches of Utah's Zion Canyon. Flowing through Zion National Park (which turns 103 today!), the Virgin River is home to unique plants and animals that aren't found anywhere else, due to the unique intersection of biomes found where the Colorado Plateau, Great Basin, and Mojave Desert all meet. Without the water of the Virgin River system, creatures like the woundfin minnow, one of rarest species on the planet, couldn't exist.
从大酒钵里喝一口 Take a sip from the Punchbowl
River Quoich in Aberdeenshire, Scotland
In the eastern Highlands of Scotland, tucked into the forested plateaus of the Cairngorms mountain range is a small but beloved river that runs through a ravine. The River Quoich is frequented by nature lovers, hikers, and intrepid paddlers willing to brave its surprisingly swift currents and its several waterfalls, including the one featured here, the Linn of Quoich. These falls are famous for the bowl-shaped cavity in the rock that you see on the left side of this image.
Called the Punch Bowl, this natural feature has become the star attraction for those who visit the river and take the 3-mile hike along its banks. According to lore, the Earl of Mar, the 18th-century nobleman who owned these woods, would place a ceremonial punch bowl atop the hole and drank from it after a successful deer hunt. Queen Victoria, Britain's longest-reigning monarch, also frequented these pine woods and built a now derelict lodge near the falls. While the beauty of the River Quoich is fit for a queen, you don't have to be royalty to enjoy it.
令人印象深刻的时刻 Time to make an impression
Caribou rutting season in Alaska
It's that time of year when Alaskan caribou are beginning to feel a little frisky. From late September until early November, males will be strutting their stuff, locking antlers with one another, and competing for the attention of females in hopes of furthering the species. Successful males will mate with 15-20 females a season. After the rutting season males will shed their antlers while females keep theirs until spring. In today's photo we're looking at some caribou in southcentral Alaska crossing the Susitna River.
Alaska has 32 distinct caribou herds. It's likely today's caribou are members of the Nelchina herd, which roams across about 20,000 square miles in the high basin surrounded by the Talkeetna, Chugach, Wrangell, and Alaska ranges. The Nelchina herd is among the most studied and recognized of Alaskan caribou partly because their range is relatively close to the major human population centers of the state. The herd has provided food for Alaskans for hundreds of years and its population is maintained through carefully monitored hunting regulations. But caribou populations can fluctuate from one year to the next depending on the availability of food and severity of the weather.
匆匆而逝的河流 The rivers run through us
World Rivers Day
On World Rivers Day, we honor what may be thought of as the queen of them all—the Amazon, which flows more than 4,000 miles mostly through the South American countries of Peru and Brazil. The Amazon discharges a whopping 58 million gallons of fresh water into the ocean every second, enough to fill 83 Olympic-sized swimming pools, far more water than any other river in the world. It accounts for 20% of all fresh water that flows into the world's seas and oceans. It's also the vital heart of the largest and most diverse rain forest in the world—the Amazon Rain Forest is home to a third of the world's animal species and its trees and plants pull billions of tons of heat-trapping carbon dioxide from the atmosphere each year, making it one of the Earth's best defenses against climate change.
Mark Angelo, a river conservationist from British Columbia, launched World Rivers Day in 2005 to recognize the importance of rivers to the survival of humanity and millions of species all over the world. Rivers are our best source of fresh water, they can be an important energy source, they're the foundations of complex ecosystems, and provide crucial sources of irrigation for our crops, among other contributions to our way of life. Besides, who doesn't love a float down a lazy river?
In Texas, even the riverbend is big
We're celebrating the 77th birthday of Big Bend National Park, the place the National Park Service calls 'one of the last remaining wild corners of the United States.' To get here, you have to be committed. This rugged terrain, which covers almost a million acres, is one of the most remote spots in the country—it's hours from the nearest towns or the closest airport, making it one of the least-visited national parks in the country. Those who do make the effort to get to Big Bend are rewarded with an undeveloped natural beauty, and silence, two things that seem to be in short supply these days.
At Big Bend you'll find craggy hiking trails, red mountain vistas, limestone canyons, and hot springs alongside the famous Rio Grande. There's also the wildlife you'd expect to find in the Wild, Wild West, including rattlesnakes, packs of javelinas, and 20 species of bats. But it's the huge night sky unencumbered by light pollution that draws stargazers to Big Bend from all over the world. After all, everything, as they say, is bigger in Texas.