Four "mine repair" magic weapon! Three "National Mine Park" cases!

4. Turn "poverty" into "spring", and plant restoration shows a new face

Phytoremediation is a common technique for mine ecological restoration. This technology can stabilize the contaminated soil and prevent the secondary pollution of groundwater while repairing the contaminated soil, which does not damage the soil structure and reduces the repair cost, so it has become a research hotspot of heavy metal pollution remediation technology. Generally, mine abandoned land is extremely barren, poor soil structure and other harsh environment, heavy metal tolerant plants can not only adapt to this land, but also tolerate heavy metal toxicity, and even some tolerant plants can enrich high concentrations of heavy metals, so they are widely used in the restoration of heavy metal polluted land. At the same time, considering the ecological problems that may be brought about by introduction and the adaptability of native plants to local climatic conditions, it is necessary to screen heavy metal-tolerant plants based on local conditions.

The National Mine Park case

1. Huangshi National Mining Park, Hubei Province

Huangshi National Mining Park is located in the Tieshan District of Huangshi City, Hubei Province. The core landscape of Huangshi National Mining Park is the "Mining and Metallurgical Grand Canyon", which is shaped like a huge inverted gourd. It is 2200 meters long from east to west, 550 meters wide from north to south, with a maximum drop of 444 meters and an opening area of 1.08 million square meters.

2. Dongtian National Mine Park, Changyu, Wenling, Zhejiang

Dongtian National Mining Park in Changyu, Wenling, Zhejiang Province, has been mining stone for more than 1,500 years since the Southern and Northern Dynasties, forming 28 cave groups and 1314 caves in Changyu, which is the world's largest man-made cave scenic spot. Its landscape features are set of adit, adit connection, adit overlapping, adit water, adit sky, adit painting, with outstanding stone adit structure appreciation value and artificial unintentional aesthetic value.

Third, Xinjiang rich Keketuohai Rare Metal National Mine Park

Xinjiang Fuyun Keketuohai Rare Metal National Mine Park is located in Fuyun County, the southern foot of the Altai Mountains. Keketuohai rare metal deposit has a mining history of 70 years, has the reputation of "natural mineral exhibition hall", and is a classic example of the study of pegmatitic rare metal deposit in the world. It is known as the "No. 3 vein" of the world's fourth largest open pit mine, which contains 84 kinds of minerals such as tantalum, niobium, potassium and silicon. Rare metal mining relics constitute the core landscape of the mine park.