Wanxin Liu1, Juan Li2, Jian Long1, Yating Wu1
1Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, Guizhou, China
2School of Geography and Environmental Science, Guizhou Normal University, Guiyang, Guizhou, China
In order to explore the relationship between soil-water and fertilization under different land use types in karst rocky desertification areas, we selected cultivated land, Zanthoxylum forest, dragon fruit plantation, and loquat forest soils in the Huajiang Hot Valley area of Guizhou Province as experimental materials. We measured the soil moisture content, bulk density, maximum water holding capacity, capillary water holding capacity, capillary porosity, total porosity, and soil carbon, nitrogen, and phosphorus in these four types of sites. The results showed that the soil hydrological properties in the dragon fruit plantation were significantly lower than those in the cultivated land, Zanthoxylum forest, and loquat forest (p<0.05), but the bulk density was significantly higher, indicating poorer soil structure. Cultivated land exhibited the best soil properties among the studied land use types. The cultivated land had the highest soil organic carbon (SOC) and total phosphorus (TP) content, while the loquat forest had the highest total nitrogen (TN) content. Nitrogen deficiency was the primary limiting factor for soil in the cultivated land, while phosphorus deficiency was the primary limiting factor for the other three land use types.
Karst dry-hot valley, Soil hydrological properties, Soil carbon, nitrogen, phosphorus
Wanxin Liu, Juan Li, Jian Long, Yating Wu. Effects of Different Land Use Types on Soil Hydrological Properties and Soil Carbon, Nitrogen and Phosphorus in Typical Karst Region. Academic Journal of Environment & Earth Science (2023) Vol. 5 Issue 5: 20-27. https://doi.org/10.25236/AJEE.2023.050504.
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