干旱区生态环境知识资源中心(Arid): Soil structure and nutrient contents in underground fissures in a rock-mantled slope in the karst rocky desertification area

Arid

DOI	10.1007/s12665-019-8708-z
	Soil structure and nutrient contents in underground fissures in a rock-mantled slope in the karst rocky desertification area
	Peng, Xudong 1; Wang, Xiangdong 2; Dai, Quanhou 1,3; Ding, Guijie 1; Li, Changlan 4
通讯作者	Dai, Quanhou
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2020
卷号	79 期号:1
英文摘要	Near-surface karst fissures are filled with soils. These soils are often derived from the erosion and transport of surface soil but have different properties than the surface soil in karst rocky desertification regions. This study was undertaken to determine the soil structure and nutrient contents in underground fissures with different grades of rocky desertification (no, potential, mild, moderate and severe). Based on field surveys, near-surface karst fissures were selected in a typical karst plateau area. Soil particle compositions, particularly nutrient characteristics, were determined through field sampling and laboratory experiments. The results indicated that the higher the rock desertification grade was, the higher the soil sand (0.02-2 mm) content and the lower the clay (< 0.002 mm) content. The soil in both limestone and dolomite fissures was basically neutral to weakly alkaline. The surface soil in dolomite fissures presented a higher soil organic matter content than that in limestone fissures, but the opposite was true for the subsurface soil. From the surface to the lower layer, the total nitrogen content generally decreased, and the total phosphorus content generally decreased in dolomite fissures but exhibited a more complex pattern in limestone fissures. The total phosphorus content of the surface soil was higher than that of the subsurface soil, but the total potassium content was lower. There was no significant difference among different soil layers. Near-surface fissures are a good place to promote vegetation restoration projects, because they provide good soil structure and nutritional conditions for plant growth.
英文关键词	Soil particle distribution Soil nutrients Underground fissures Karst plateau
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000511846500003
WOS关键词	EROSION
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314415
作者单位	1.Guizhou Univ, Coll Forestry, Guiyang 550025, Peoples R China; 2.Water Conservancy Bur Huaxi Dist, Guiyang 550025, Peoples R China; 3.Guizhou Univ, Key Lab Plant Resource Conservat & Germplasm Inno, Minist Educ, Collaborat Innovat Ctr Mt Ecol & Agrobioengn CICM, Guiyang 550025, Guizhou, Peoples R China; 4.Qiantao Township Peoples Govt, Guiyang 550027, Peoples R China
推荐引用方式 GB/T 7714	Peng, Xudong,Wang, Xiangdong,Dai, Quanhou,et al. Soil structure and nutrient contents in underground fissures in a rock-mantled slope in the karst rocky desertification area[J],2020,79(1).
APA	Peng, Xudong,Wang, Xiangdong,Dai, Quanhou,Ding, Guijie,&Li, Changlan.(2020).Soil structure and nutrient contents in underground fissures in a rock-mantled slope in the karst rocky desertification area.ENVIRONMENTAL EARTH SCIENCES,79(1).
MLA	Peng, Xudong,et al."Soil structure and nutrient contents in underground fissures in a rock-mantled slope in the karst rocky desertification area".ENVIRONMENTAL EARTH SCIENCES 79.1(2020).