The study looked at how different types of land and the shape of the land affect the amount of inorganic carbon in the soil in a small area called Zhifanggou. They found that the terrain and land use both play a big role in how much inorganic carbon is in the soil. Table land had the most, followed by slope land and then gully land. Shrub land had the most inorganic carbon, followed by wood land, grassland, and farmland. The combination of where the land is and how it's used affects how much inorganic carbon is in the soil. This information helps us understand how carbon moves in the soil in the Loess Plateau, which is important for the carbon cycle in China's ecosystems.