干旱区生态环境知识资源中心(Arid): Effects of vegetation restoration on soil properties along an elevation gradient in the karst region of southwest China

Arid

DOI	10.1016/j.agee.2021.107572
	Effects of vegetation restoration on soil properties along an elevation gradient in the karst region of southwest China
	Zhang, Jun; Chen, Hongsong; Fu, Zhiyong; Wang, Kelin
通讯作者	Chen, HS (corresponding author), Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Processes Subtrop Reg, Changsha 410125, Hunan, Peoples R China. ; Chen, HS (corresponding author), Chinese Acad Sci, Huanjiang Observat & Res Stn Karst Ecosystems, Beijing 547100, Peoples R China. ; Chen, HS (corresponding author), Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China.
来源期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
EISSN	1873-2305
出版年	2021
卷号	320
英文摘要	Vegetation restoration effectively prevents soil degradation. However, the changes in soil properties that occur in fragile ecosystems in response to vegetation restoration are unclear. The aim of this study was to investigate the effects of vegetation restoration on soil physicochemical properties and saturated hydraulic conductivity (Ks) at different elevations. Restoration strategies included natural shrubland (NR), managed plantation forest (PF), cropland (CR), and secondary forest (SF). Topsoil (0-15 cm) samples were collected from seven counties in the karst region of southwest China. The soil nutrients were significantly (p < 0.05) higher in both NR and PF than in CR but were lower in SF. Soil physical properties (bulk density, porosity, texture, and Ks) were significantly (p < 0.05) different between CR and SF but not significantly different between NR and PF. Hence, the short restoration period (-15 years) had a stronger influence on soil nutrients than on soil physical properties. The soil properties following different land-use types were affected by elevation. For SF and PF, soil Ca, total nitrogen, and sand content were significantly (p < 0.05) negatively correlated with elevation. For NR, only sand content was significantly (p < 0.05) negatively correlated with elevation. No soil parameters were significantly correlated with elevation in CR. Soil nutrients increased to a greater extent in the low-elevation area (150-500 m) than in the high-elevation (1000 to 1200 m) areas. This discrepancy could be explained by the relatively increased biomass after vegetation restoration. Clay content variation was the main factor controlling Ks variation. The change in clay content was greater in low-elevation areas than in higher-elevation areas, where higher weathering and erosion rates were caused by strong hydrothermal conditions. Accordingly, the present study showed that the variations in soil properties observed after vegetation restoration are influenced by both land-use types and elevation.
英文关键词	Boosted regression trees model Ecological restoration Karst ecosystems Rocky desertification Soil hydraulic property
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000691679200004
WOS关键词	SATURATED HYDRAULIC CONDUCTIVITY ; LOESS PLATEAU ; SPATIAL VARIABILITY ; PHYSICAL-PROPERTIES ; LAND-USE ; HYDROLOGIC FUNCTIONS ; CHEMICAL-PROPERTIES ; ORGANIC-CARBON ; CLIMATE-CHANGE ; MANAGEMENT
WOS类目	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS研究方向	Agriculture ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362391
作者单位	[Zhang, Jun; Chen, Hongsong; Fu, Zhiyong; Wang, Kelin] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Processes Subtrop Reg, Changsha 410125, Hunan, Peoples R China; [Zhang, Jun; Chen, Hongsong; Fu, Zhiyong; Wang, Kelin] Chinese Acad Sci, Huanjiang Observat & Res Stn Karst Ecosystems, Beijing 547100, Peoples R China; [Zhang, Jun] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jun,Chen, Hongsong,Fu, Zhiyong,et al. Effects of vegetation restoration on soil properties along an elevation gradient in the karst region of southwest China[J],2021,320.
APA	Zhang, Jun,Chen, Hongsong,Fu, Zhiyong,&Wang, Kelin.(2021).Effects of vegetation restoration on soil properties along an elevation gradient in the karst region of southwest China.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,320.
MLA	Zhang, Jun,et al."Effects of vegetation restoration on soil properties along an elevation gradient in the karst region of southwest China".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 320(2021).