caa a22 4500 477112021 CHVBK 20180405111611.0 cr unu---uuuuu 170330e19960501xx s 000 0 eng 10.1007/BF00011005 doi (NATIONALLICENCE)springer-10.1007/BF00011005 Root foraging strategies and soil patchiness in a humid savanna [Elektronische Daten] [P. Mordelet, S. Barot, L. Abbadie] In Lamto (Côte d'Ivoire), the savanna is a patchy environment as far as soil is concerned: tree clumps and termite mounds lead to higher nutrient contents than in the surrounding savanna. Mature Borassus aethiopum (Mart.) specimens are tall palm trees dominating the community, with aerial parts located out of these nutrient-rich patches. Palm root densities were compared under tree clumps and in the surrounding savanna, and were also sampled along transects between palm trees and nutrient-rich patches (two clumps and one mound). Palm root densities were far higher (up to 10 times) in the nitrogen-rich soil of both clumps and termite mounds than in the surrounding savanna. Evidence is given that palm trees are able to extend their root system as far as 20 m towards these nutrient-rich patches where they proliferate. These results point out a particular root foraging strategy, which is one of the first known for a woody perennial. They also provide new insights for understanding nitrogen cycling and savannas high rate of primary production. Kluwer Academic Publishers, 1996 Borassus aethiopum nationallicence Côte d'Ivoire nationallicence foraging nationallicence heterogeneity nationallicence humid savanna nationallicence Lamto nationallicence nutrients nationallicence root nationallicence spatial structure nationallicence West Africa nationallicence Mordelet P. Laboratoire d'Ecologie, Ecole Normale Supérieure, CNRS URA-258, 46 rue d'Ulm, F-75230, Paris cedex 05, France aut Barot S. Laboratoire d'Ecologie, Ecole Normale Supérieure, CNRS URA-258, 46 rue d'Ulm, F-75230, Paris cedex 05, France aut Abbadie L. Laboratoire d'Ecologie, Ecole Normale Supérieure, CNRS URA-258, 46 rue d'Ulm, F-75230, Paris cedex 05, France aut Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl 182/1(1996-05-01), 171-176 0032-079X 182:1<171 1996 182 11104 https://doi.org/10.1007/BF00011005 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00011005 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mordelet P. Laboratoire d'Ecologie, Ecole Normale Supérieure, CNRS URA-258, 46 rue d'Ulm, F-75230, Paris cedex 05, France aut NATIONALLICENCE 700 1- Barot S. Laboratoire d'Ecologie, Ecole Normale Supérieure, CNRS URA-258, 46 rue d'Ulm, F-75230, Paris cedex 05, France aut NATIONALLICENCE 700 1- Abbadie L. Laboratoire d'Ecologie, Ecole Normale Supérieure, CNRS URA-258, 46 rue d'Ulm, F-75230, Paris cedex 05, France aut NATIONALLICENCE 773 0- Plant and Soil Kluwer Academic Publishers; gopher://gopher.wkap.nl/ 182/1(1996-05-01), 171-176 0032-079X 182:1<171 1996 182 11104 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer