Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.pce.2016.11.003 |
Seasonal variation in pans in relation to limno-chemistry, size, hydroperiod, and river connectivity in a semi-arid subtropical region | |
Nhiwatiwa, Tamuka1,2; Dalu, Tatenda3,4 | |
通讯作者 | Dalu, Tatenda |
来源期刊 | PHYSICS AND CHEMISTRY OF THE EARTH
![]() |
ISSN | 1474-7065 |
EISSN | 1873-5193 |
出版年 | 2017 |
卷号 | 97页码:37-45 |
英文摘要 | Seasonal pans are hydrologically dynamic, with significant changes in water volume and depth in response to high evaporation, infiltration rates and inundation events. Intra-seasonal and inter-seasonal changes in endorheic and floodplain pans in relation to limnology, size, hydroperiod, and river connectivity were studied over two rainfall seasons across 36 pans at the Save Valley Conservancy. In the study region, floodplain pans were identified as pans that had connectivity with the Save River, while the endorheic pans (large and small) were hydrologically isolated basins. Seasonal trends for physicochemical variables were initial low and gradual increased for both rainfall seasons. Significant interseasonal differences for several physico-chemical variables were observed. No significant differences in physico-chemical variables were observed between large and small endorheic pans, with the except for vegetation cover, which was higher in large pans. Floodplain pans differed from the endorheic systems in pH, conductivity, nutrients and suspended solids. Connectivity was found to be insignificant, as connections between these systems were probably too infrequent. Seasonal pans were uniquely distinguished by their morphometric, physico-chemical and hydrological characteristics. Inevitably, they are vulnerable to climate change with the extent of their resilience currently unknown. (C) 2016 Elsevier Ltd. All rights reserved. |
英文关键词 | Endorheic Connectivity Hydroperiod Seasonal pans Temporal systems Water quality |
类型 | Article |
语种 | 英语 |
国家 | Zimbabwe ; South Africa |
收录类别 | SCI-E |
WOS记录号 | WOS:000397131200006 |
WOS关键词 | INVERTEBRATE COMMUNITIES ; CHEMICAL CHARACTERISTICS ; AQUATIC VEGETATION ; TEMPORARY ; ECOLOGY ; PONDS ; SEDIMENT ; BRANCHIOPODS ; MPUMALANGA ; CATCHMENT |
WOS类目 | Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources |
WOS研究方向 | Geology ; Meteorology & Atmospheric Sciences ; Water Resources |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201456 |
作者单位 | 1.Univ Zimbabwe, Biol Sci, POB MP 167, Mt Pleasant, MI, Zimbabwe; 2.Univ Lake Kariba Res Stn, POB 48, Kariba, Zimbabwe; 3.Rhodes Univ, Zool & Entomol, POB 94, ZA-6140 Grahamstown, South Africa; 4.South African Inst Aquat Biodivers, P Bag 1015, ZA-6140 Grahamstown, South Africa |
推荐引用方式 GB/T 7714 | Nhiwatiwa, Tamuka,Dalu, Tatenda. Seasonal variation in pans in relation to limno-chemistry, size, hydroperiod, and river connectivity in a semi-arid subtropical region[J],2017,97:37-45. |
APA | Nhiwatiwa, Tamuka,&Dalu, Tatenda.(2017).Seasonal variation in pans in relation to limno-chemistry, size, hydroperiod, and river connectivity in a semi-arid subtropical region.PHYSICS AND CHEMISTRY OF THE EARTH,97,37-45. |
MLA | Nhiwatiwa, Tamuka,et al."Seasonal variation in pans in relation to limno-chemistry, size, hydroperiod, and river connectivity in a semi-arid subtropical region".PHYSICS AND CHEMISTRY OF THE EARTH 97(2017):37-45. |
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。