Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1071/RJ17124 |
High soil acidity under native shrub encroachment in the Cobar Pediplain, south-eastern Australia | |
Tighe, M.1; Reid, N.1; Wilson, B. R.1; McHenry, M. T.2 | |
通讯作者 | Tighe, M. |
来源期刊 | RANGELAND JOURNAL
![]() |
ISSN | 1036-9872 |
EISSN | 1834-7541 |
出版年 | 2018 |
卷号 | 40期号:5页码:451-462 |
英文摘要 | This study investigated the chemical characteristics of shallow (0-30 cm) soil profiles under shrubs in areas of dense encroachment and compared them with shallow soil profiles under nearby large trees. Consistent patterns of high soil acidity were found under shrubs, as well as lower litter alkalinity, lower relative concentrations of calcium (Ca2+), lower effective cation exchange capacity, and higher aluminium (Al3+) and sodium (Na+) in the soil profile compared with under trees. Soil pH (CaCl2) was strongly correlated with the Ca content of surface litter. These findings suggest that shrubs (which at most sites included the shrub form of tree species) cycle alkalinity differently from large and mature trees, resulting in high acidity in the shallow soil profile acidity, and possible loss of alkalinity via surface movement of material from areas of dense encroachment. |
英文关键词 | landscape ecology leaf litter root-soil interactions semi-arid shrublands |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000447069500001 |
WOS关键词 | PINE CALLITRIS-GLAUCOPHYLLA ; NORTH-WESTERN SLOPES ; WOODY ENCROACHMENT ; EROSIONAL RESPONSES ; VEGETATION RESPONSE ; ECOSYSTEM STRUCTURE ; SEMIARID AUSTRALIA ; ASH ALKALINITY ; INTER-PATCHES ; WOODLAND |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/212567 |
作者单位 | 1.Univ New England, Sch Environm & Rural Sci, Armidale, NSW 2351, Australia; 2.Univ Tasmania, Sch Land & Food, Hobart, Tas 7005, Australia |
推荐引用方式 GB/T 7714 | Tighe, M.,Reid, N.,Wilson, B. R.,et al. High soil acidity under native shrub encroachment in the Cobar Pediplain, south-eastern Australia[J],2018,40(5):451-462. |
APA | Tighe, M.,Reid, N.,Wilson, B. R.,&McHenry, M. T..(2018).High soil acidity under native shrub encroachment in the Cobar Pediplain, south-eastern Australia.RANGELAND JOURNAL,40(5),451-462. |
MLA | Tighe, M.,et al."High soil acidity under native shrub encroachment in the Cobar Pediplain, south-eastern Australia".RANGELAND JOURNAL 40.5(2018):451-462. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。