干旱区生态环境知识资源中心(Arid): Change of soil K, N and P following forest restoration in rock outcrop rich karst area

Arid

DOI	10.1016/j.catena.2019.104395
	Change of soil K, N and P following forest restoration in rock outcrop rich karst area
	Shen, Youxin 1,2; Yu, Yang 3; Lucas-Borja, Manuel Esteban 4; Chen, Fajun 5; Chen, Qiaoqiao 6; Tang, Yingyin 7
通讯作者	Shen, Youxin
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2020
卷号	186
英文摘要	The link between soil properties and forest restoration is not well understood in soils with a high proportion of bare rock outcrops (ROCs). This study compared the concentration of total potassium (TK) and available potassium (AK), soil organic matter (OM), total nitrogen (TN), total phosphorus (TP), available nitrogen (AN), available phosphorus (AP), volumetric proportions of soil (VPS), pH, and bulk density in soil with ROC emergence under a sequence of grass, shrubs, young regenerated forest, and closed forest on karst landforms at Shilin, S.W. China. The aims were to determine the relationship between the changes in soil properties, biomass accumulation, and plant species under the context of ROCs, and to identify the most limiting factor for forest restoration on this specific geology. We found that (1) the concentration of TK and AK, pH, and bulk density decreased, and OM, TN, AN, and TP concentrations slightly increased in 0-20 cm, 21-40 cm, and 41-100 cm soil layers during vegetation restoration from grass to shrubs and then young regenerated forest. Only TP and AK in all soil layers, TN in the 0-20 cm layer, and TK and bulk density in the 0-20 cm and 21-40 cm layers were significantly different between the soils of grass areas and closed forest. (2) The biomass was negatively correlated with TK and AK stocks in the 0-20 cm soil layer and AK stock in the entire 1 m pedon, and positively with TN, TP, and AN stocks in the entire 1 m pedon. The optima of various species groups, which account for a small proportion, corresponded to stock of N, P, K in canonical correspondence analysis. In conclusion, biomass accumulation during forest recovery in the context of ROCs had depleted soil K stocks and caused the reduction of TK and AK concentrations, contrary to the slight enrichment of soil N, and P and improvement of OM, pH and bulk density. Any measure increasing soil K may benefit forest restoration in karst areas.
英文关键词	Rock outcrops Soil properties Biomass Plant composition Rocky desertification Forest restoration
类型	Article
语种	英语
国家	Peoples R China ; Spain
收录类别	SCI-E
WOS记录号	WOS:000509817000004
WOS关键词	CHINA ; METAANALYSIS ; DEGRADATION ; TEMPERATE ; PATTERNS ; NITROGEN ; BOREAL ; REGION ; CARBON ; IMPACT
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314222
作者单位	1.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.China Inst Water Resources & Hydropower Res, Dept Sediment Res, Beijing 100048, Peoples R China; 4.Univ Castilla La Mancha, Dept Ciencia & Tecnol Agroforestal & Genet, Escuela Tecn Super Ingn Agron, Campus Univ S-N, Albacete 02071, Spain; 5.Neijiang Normal Univ, Neijiang 641100, Sichuan, Peoples R China; 6.Guangxi Univ Nationalities, Nanning 530006, Guangxi Provinc, Peoples R China; 7.Bazhong Environm Monitoring Ctr, Bazhong City 636600, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Shen, Youxin,Yu, Yang,Lucas-Borja, Manuel Esteban,et al. Change of soil K, N and P following forest restoration in rock outcrop rich karst area[J],2020,186.
APA	Shen, Youxin,Yu, Yang,Lucas-Borja, Manuel Esteban,Chen, Fajun,Chen, Qiaoqiao,&Tang, Yingyin.(2020).Change of soil K, N and P following forest restoration in rock outcrop rich karst area.CATENA,186.
MLA	Shen, Youxin,et al."Change of soil K, N and P following forest restoration in rock outcrop rich karst area".CATENA 186(2020).