The world's largest basin is the Amazon Basin in South America, spanning approximately 7 million square kilometers. It is drained by the Amazon River, the largest river by discharge volume, and covers parts of Brazil, Peru, Colombia, and other countries. The basin is home to the Amazon Rainforest, the planet's richest biodiversity hotspot, with millions of species. Its dense¹ vegetation plays a critical role in global carbon storage and climate regulation. However, deforestation threatens its ecosystems².

世界上最大的盆地是南美洲的亚马逊盆地，面积约700万平方公里。它由亚马逊河（全球流量最大的河流）冲刷形成，覆盖巴西、秘鲁、哥伦比亚等国。该盆地拥有亚马逊雨林，是地球生物多样性最丰富的地区，孕育数百万物种。其茂密植被对全球碳储存和气候调节至关重要，但滥伐森林正威胁其生态平衡。