干旱区生态环境知识资源中心(Arid): Characteristics of Soil Calcium Content Distribution in Karst Dry-Hot Valley and Its Influencing Factors

Arid

DOI	10.3390/w15061119
	Characteristics of Soil Calcium Content Distribution in Karst Dry-Hot Valley and Its Influencing Factors
	Luo, Ya; Shi, Chunmao; Yang, Shengtian; Liu, Yang; Zhao, Shuang; Zhang, Chunchang
通讯作者	Luo, Y
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:6
英文摘要	Calcium is an essential macronutrient in soils and plays an important role in the structure and function of an ecosystem. In this study, we selected the Huajiang dry-hot valley region in southwest China as our research object, aiming to comprehend the soil calcium distribution characteristics of different altitudes and vegetation types in this karst dry-hot valley region. The results showed that the mean value of total soil calcium content in the karst dry-hot valley was 13.00 +/- 3.28 g center dot kg(-1), and the mean value of the proportion of exchangeable calcium content to total calcium was 50.31%. In the vertical profile, total soil and exchangeable calcium contents decreased with increasing soil depth. With increasing altitude, total soil and exchangeable calcium contents increased. Among the different vegetation types, the total and exchangeable calcium contents of crops were higher than the three natural vegetation types of forest, scrub, and grassland, and the soil calcium content of forest was the lowest. Total soil and exchangeable calcium content in the karst dry-hot valley were affected by rock exposure rate, vegetation coverage, soil thickness, soil organic matter and soil pH. In addition, the unique environmental gradient characteristics at different elevations in the dry-hot valley area may redistribute soil calcium, and the positive vegetation succession may cause a gradual decrease of soil calcium content in the area.
英文关键词	soil calcium dry-hot valley karst distribution characteristics
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000958151600001
WOS关键词	ROCKY DESERTIFICATION ; CARBONATE ROCKS ; ORGANIC-MATTER ; AREAS ; DISSOLUTION ; EROSION ; QUALITY
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399005
推荐引用方式 GB/T 7714	Luo, Ya,Shi, Chunmao,Yang, Shengtian,et al. Characteristics of Soil Calcium Content Distribution in Karst Dry-Hot Valley and Its Influencing Factors[J],2023,15(6).
APA	Luo, Ya,Shi, Chunmao,Yang, Shengtian,Liu, Yang,Zhao, Shuang,&Zhang, Chunchang.(2023).Characteristics of Soil Calcium Content Distribution in Karst Dry-Hot Valley and Its Influencing Factors.WATER,15(6).
MLA	Luo, Ya,et al."Characteristics of Soil Calcium Content Distribution in Karst Dry-Hot Valley and Its Influencing Factors".WATER 15.6(2023).