Karst (/ kɑːrst /) is a topography formed from the dissolution of soluble carbonate rocks such as limestone and dolomite.

2022年4月27日 · Karst is a type of landscape where the dissolving of the bedrock has created sinkholes, sinking streams, caves, springs, and other characteristic features. Karst is associated with soluble rock types such as limestone, marble, and gypsum.

2023年11月24日 · Soils can play a significant role in the karst processes. Soils that are rich in organic matter (e.g., a forest floor or a swamp) have higher levels of CO 2 and so make rainfall or surface waters more acidic, thus enhancing the dissolution process.

2023年11月24日 · The characteristics of karst landscapes vary depending on factors such as: soluble bedrock type, climatic environment (more specifically precipitation and temperature), geographic position (both globally and locally), overlying soil materials, and vegetation cover (Figure 12.2.1).

Practices that reduce soil and nutrient losses, such as grass buffer strips, cover crops, and reduced tillage are important in sensitive areas such as karst topography and Silurian bedrock. Less nutrients running off fields will help limit the contamination of surface and groundwater.

Karst landscapes may have deep bedrock fractures, caves, disappearing streams, springs, or sinkholes. These features can be isolated or occur in clusters, and may be open, covered, buried, or partially filled with soil, field stones, vegetation, water or other miscellaneous debris.

2019年10月28日 · Shallow karst soils are rich in solution features and highly permeable (Fu et al. 2016). The various water leakage structures (e.g., sinkholes, bedrock fractures, caves) facilitate rapid water flow into underground hydrological systems.

2024年12月27日 · karst, terrain usually characterized by barren, rocky ground, caves, sinkholes, underground rivers, and the absence of surface streams and lakes. It results from the excavating effects of underground water on massive soluble limestone.

2023年1月5日 · A karst landscape has sinkholes, sinking streams, caves, and springs. The term "karst" is derived from a Slavic word that means barren, stony ground. It is also the name of a region in Slovenia near the border with Italy that is well known for its sinkholes and springs.

Soils can play a significant role in the karst processes. Soils that are rich in organic matter (e.g., a forest floor or a swamp) have higher levels of CO 2 and so make rainfall or surface waters more acidic, thus enhancing the dissolution process.