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我国最大的天坑 四川省奉节县小寨天坑位于长江三峡河谷深切区的边缘。它上部有椭圆大坑,直径为537米至626米,深302米;下部为略成矩形的竖井,总面积11934.8立方米。有关专家考察结论为:世界上最大的天坑。 我国最长的地缝 四川省奉节县天井峡地缝首尾全长37公里,深度自上游向下游从4米多增至900米,中外专家考察结论为世界上最长的地缝。 我国最高大的松树 湖北省巴东县国营铁厂荒林场洪大荒处生长
China’s largest tiankeng Fengjie County, Sichuan Province Xiaozhai tiankeng is located in the Three Gorges Valley deep zone edge. Its top has oval pits, diameter 537 meters to 626 meters, 302 meters deep; the lower part of a slightly rectangular shaft, with a total area of 11934.8 cubic meters. The experts concluded that: the world’s largest tiankeng. The longest seam in China, Fengjie County, Sichuan Province, is 30 kilometers long and 37 kilometers long, from the upper reaches to the downstream from 4 meters to 900 meters. Chinese and foreign experts concluded that the longest seam in the world. China’s tallest pines Badong County, Hubei Province, the State-owned Ironworks wasteland Habitat flood growth