Earth Sciences

This article focuses on the question of "why there is a 'Devil City'", introducing the geomorphological characteristics and naming origin of the "Devil City" in Wulong County, Xinjiang Uygur Autonomous Region, explaining the process of its formation through geological evolution and weathering and wind erosion, and introducing its Yadan landform attributes and other well-known Yadan landforms in China.

The article titled "Why Some Mountains Turn Red Like Fire" takes the legend of Flaming Mountain in Journey to the West as an introduction, and introduces the naming origin, distribution range, typical representatives, judging characteristics and formation process of Danxia landforms, explaining why mountains such as Danxia Mountain, which are composed of red sandstone, turn red like fire. Among them, six Danxia landforms in the "Chinese Danxia" series have been listed as World Heritage.

This article focuses on the issue of the many peculiar peaks and strange rocks in Huangshan, introducing the landscape characteristics of Huangshan and the diverse forms of its peculiar peaks and strange rocks. It explains the causes from aspects such as rock composition, mountain-building movements, and external weathering effects. It also describes the geomorphological features of Huangshan, which is "magnificent in the front and beautiful in the back", and the reasons for its formation.

This article focuses on the topic of why there are many grasslands on the Inner Mongolia Plateau, introducing the geomorphological characteristics and formation and evolution process of the Inner Mongolia Plateau, as well as its climate conditions. It explains the reasons why it is suitable for the growth of grass, and at the same time mentions the distribution and area of local grasslands, as well as the current situation of grassland degradation and the urgency of its management.

This article focuses on the reasons why the Qinghai-Tibet Plateau is known as the "Roof of the World", introducing the plateau's altitude, topography, climate characteristics, and diverse natural landscapes. It also mentions that the clothing of Tibetan people is closely related to the local climate, and explains the origin of its nickname as the "Third Pole of the Earth".

This article focuses on the question of "why there are thousands of gullies and ravines on the Loess Plateau", introducing the surface features of the Loess Plateau with thousands of gullies and ravines, the three main landform types of plateaus, terraces, and ridges, explaining the wind-formed origin of the loess, analyzing the natural and human-induced causes of the formation of the landscape of thousands of gullies and ravines on the Loess Plateau and severe soil and water erosion, and illustrating the regional distribution of soil erosion, the harm it causes, and the current management status and future direction.

This article focuses on the question of "why some coasts are beaches while others are cliffs", and introduces the principle of how topography and geomorphology, together with seawater, shape different coastal landscapes. It covers the background of the rise in sea level after the Ice Age, the process of wave erosion and deposition forming beaches and small sea cliffs, and the mechanism of fault structures creating large continuous cliffs.

This article focuses on the question of why there are heavy metals in soil. It introduces that after the soil is contaminated by heavy metals, the pollutants will enter the human body through crops and harm people's health. It corrects the misconception that normal soil does not contain heavy metals and that all heavy metals are caused by pollution. It points out that heavy metals in soil can be divided into two categories: natural sources and human activities. Natural sources include heavy metal residues in soil-forming rocks, and human activities include irrational fertilization, excessive use of pesticides, and industrial activities. Among them, industrial activities are the most important artificial sources of heavy metals in soil.

This article focuses on the question of "why some soils clump together", and introduces the various causes of soil clumping, the harm of soil compaction, and specific methods to improve soil compaction.

This article focuses on the question of "why not all soils are suitable for farming", corrects the misconception that any land can be cultivated, explains the definition and formation process of soil, demonstrates that soil organic carbon is an important indicator for judging soil fertility, which can be preliminarily identified by soil color but needs to exclude special situations such as oil pollution. It points out that improper use of pesticides and fertilizers can lead to soil pollution and degradation, making it unsuitable for farming. Finally, it introduces soil health methods and specific measures for soil protection.

This article answers the question of why there are large areas of red soil in southern China, introduces the distribution range, formation conditions, and formation process of red soil, explains the characteristics of red soil, and also introduces various ways of transforming and utilizing red soil.

This article focuses on the topic of why soils have different colors, introducing more than 60 different types of soils with various colors in China, explaining that the differences in soil color stem from the natural conditions of different regions and the types of compounds contained in the soil, and pointing out that the composition of the soil has an important impact on local agriculture.