Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2017.12.004 |
Changes in soil hydraulic properties, soil moisture and water balance in Acacia senegal plantations of varying age in Sudan | |
Abaker, Wafa E.1,2; Berninger, Frank3; Starr, Mike3 | |
通讯作者 | Abaker, Wafa E. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2018 |
卷号 | 150页码:42-53 |
英文摘要 | The effects of Acacia senegal trees on soil moisture (SM) and hydraulic properties in relation to plantations age and associated changes in soil organic carbon (SOC) were investigated and compared to grasslands at two sites in Sudan. Soil hydraulic properties were computed using pedotransfer functions based on texture and SOC, and SM measured using TDR. The measured SM data was used to parametrize a simple daily water balance model in which Hortonian runoff was calculated using the SCS runoff curve number (CM) method and evapotranspiration calculated using crop coefficients, K-c, adjusted to seasonal values using NDVI. Measured SM was higher in the grasslands than plantations, but increased with plantation age, reflecting a similar trend in plantation SOC and plant available water capacities. The modelling resulted in lower runoff from the plantations, increased infiltration, evapotranspiration, reduced drainage and lower SM, as shown by measurements. Greater SM contents in the grasslands were attributed to lower evapotranspiration and resulted in greater drainage fluxes compared to the plantations. The study highlighted the need for more empirical studies on the effect of tree density and cover on rainfall-runoff relationships, infiltration, evapotranspiration and drainage in drylands, especially those of the drier parts of semi-arid Africa. |
英文关键词 | Drylands Sahel Woodland Savanna Soil carbon Plant available water capacity |
类型 | Article |
语种 | 英语 |
国家 | Finland ; Sudan |
收录类别 | SCI-E |
WOS记录号 | WOS:000424718100007 |
WOS关键词 | CARBON SEQUESTRATION ; DAILY EVAPOTRANSPIRATION ; CROP COEFFICIENTS ; VEGETATION INDEX ; LAND DEGRADATION ; RUNOFF ; ECOSYSTEMS ; INFILTRATION ; SYSTEM ; MODIS |
WOS类目 | Ecology ; Environmental Sciences |
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/2XILL650/210532 |
作者单位 | 1.Univ Helsinki, Viikki Trop Resources Inst VITRI, Dept Forest Sci, POB 27, FIN-00014 Helsinki, Finland; 2.Univ Khartoum, Fac Forestry, Shambat 13314, Sudan; 3.Univ Helsinki, Dept Forest Sci, POB 27, FI-00014 Helsinki, Finland |
推荐引用方式 GB/T 7714 | Abaker, Wafa E.,Berninger, Frank,Starr, Mike. Changes in soil hydraulic properties, soil moisture and water balance in Acacia senegal plantations of varying age in Sudan[J],2018,150:42-53. |
APA | Abaker, Wafa E.,Berninger, Frank,&Starr, Mike.(2018).Changes in soil hydraulic properties, soil moisture and water balance in Acacia senegal plantations of varying age in Sudan.JOURNAL OF ARID ENVIRONMENTS,150,42-53. |
MLA | Abaker, Wafa E.,et al."Changes in soil hydraulic properties, soil moisture and water balance in Acacia senegal plantations of varying age in Sudan".JOURNAL OF ARID ENVIRONMENTS 150(2018):42-53. |
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