Arid
DOI10.1023/A:1014970523241
Fine-scale spatial distribution of plants and resources on a sandy soil in the Sahel
Rietkerk, M; Ouedraogo, T; Kumar, L; Sanou, S; van Langevelde, F; Kiema, A; van de Koppel, J; van Andel, J; Hearne, J; Skidmore, AK; de Ridder, N; Stroosnijder, L; Prins, HHT
通讯作者Rietkerk, M
来源期刊PLANT AND SOIL
ISSN0032-079X
出版年2002
卷号239期号:1页码:69-77
英文摘要

We studied fine-scale spatial plant distribution in relation to the spatial distribution of erodible soil particles, organic matter, nutrients and soil water on a sandy to sandy loam soil in the Sahel. We hypothesized that the distribution of annual plants would be highly spatially autocorrelated and that this would be positively linked with the spatial distribution of erodible soil particles, soil organic matter and nutrients. Further. we hypothesized that larger vegetated patches (a relatively high vegetation cover at coarser spatial scale) will be stronger linked with erodible soil particles. organic matter and nutrients than smaller vegetated patches (a relatively low vegetation cover at coarser spatial scale). Generally. for ’low cover’ and ’high cover’ plots, spatially confined micro-elevations with a relatively high volume percentage of erodible very fine-medium sand (50-400 mum), were linked with a higher cover of annual plants. The robustness of vegetation patchiness (expressed as the proportion of the total variance accounted for by spatial dependent variance) was significantly higher for the ’high cover’ plots. For the ’low cover’ plots, higher vegetation cover was associated with higher elevations, soil moisture, and volume percentage of very fine to medium sand, but lower organic matter, total N and P. For the ’high cover’ plots, micro-elevations also consisted of a relatively high volume percentage of very fine to medium sand, and this was associated with dryer conditions and higher total N. Additionally, dryer conditions were weakly correlated with higher organic matter. So, micro-elevations were indirectly associated with dryer and more fertile conditions, which was opposite to what we found for the ’low cover’ plots.


英文关键词annual vegetation infiltration capacity semi-arid grazing system soil moisture soil nutrients soil texture water erosion wind erosion
类型Article
语种英语
国家Netherlands ; Burkina Faso ; South Africa
收录类别SCI-E
WOS记录号WOS:000175627700006
WOS关键词SEMIARID GRAZING SYSTEMS ; VEGETATION PATTERN ; WEST-AFRICA ; CLASSIFICATION ; PRODUCTIVITY ; ECOSYSTEMS ; SAVANNAS ; DYNAMICS ; PATCHES ; AREAS
WOS类目Agronomy ; Plant Sciences ; Soil Science
WOS研究方向Agriculture ; Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/143577
作者单位(1)Wageningen Univ, Dept Environm Sci, Trop Nat Conservat & Vertebrate Ecol Grp, NL-6708 PD Wageningen, Netherlands;(2)INERA, Ctr Reg Rech Environm & Agr Nord, Stn Katchari, Dori, Burkina Faso;(3)ITC, Int Inst Aerosp Survey & Earth Sci, Agr Conservat & Environm Div, NL-7500 AA Enschede, Netherlands;(4)Univ Groningen, Dept Plant Biol, NL-9750 AA Haren, Netherlands;(5)Univ Natal, Sch Math, ZA-3209 Pietermaritzburg, South Africa;(6)Wageningen Univ, Dept Plant Sci, NL-6700 HB Wageningen, Netherlands;(7)Wageningen Univ, Dept Environm Sci, Eros & Soil & Water Conservat Grp, NL-6709 PA Wageningen, Netherlands;(8)Univ Utrecht, Dept Environm Sci, NL-3508 TC Utrecht, Netherlands
推荐引用方式
GB/T 7714
Rietkerk, M,Ouedraogo, T,Kumar, L,et al. Fine-scale spatial distribution of plants and resources on a sandy soil in the Sahel[J],2002,239(1):69-77.
APA Rietkerk, M.,Ouedraogo, T.,Kumar, L.,Sanou, S.,van Langevelde, F.,...&Prins, HHT.(2002).Fine-scale spatial distribution of plants and resources on a sandy soil in the Sahel.PLANT AND SOIL,239(1),69-77.
MLA Rietkerk, M,et al."Fine-scale spatial distribution of plants and resources on a sandy soil in the Sahel".PLANT AND SOIL 239.1(2002):69-77.
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