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Transcription

1 (6) :57 62 Chinese Journal of Ecology 3 ( ) ( ) A Review for Research of Root Exudates Ecology. Chen Longchi Liao Liping Wang Silong( Institute of A pplied Ecology Chinese Academy of Sciences S henyang ) Xiao Fuming ( Jiangxi Academy of Forest ry N anchang ). Chi2 nese Journal of Ecology (6) : The study of root exudates enriches the theories and methods of rhizospheric soil ecology and offers theory warranty that it can be used in agriculture and forest. This paper discusses the types and components of root exudates mechanism of exuda2 tion and the relationship between root exudates and the biotic and environmental factors. The development tendency and study aspect of root exudates in the future was evaluated as well. Key words :root exudates exudation rhizosphere soil ecology. : :Q :A : (2002) P Rovira [43 ] Vancura [47 ] [38 ( Dichos lablab) ] Fe [17 ] Al [26 ] [42 ] Zn 70 [17 ] Jane [17 ] [35 ] P Neumann [38 ] P P P 1 P P [ ] 1 3 ( KZCX2-406) : 26 net Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

2 [23 ] (Allelochemicals) [ ] 1 Fig. 1 Kinds of plant root exudates Ca 3 Ca 3 Pellet [42 ] Al Al Al 7 ( Fe) ( T riticum aestiv um ) ( Fagopy2 [4 rum escule) ] ( Fagopyrum escule) ( B iassica cam pest ris) 312 ( Grain am aranth) ( Raphanys sativ us) ( L ycopersiun escuent um ) ( Cappsicum f rutescens) 2 ( Rottboellia com pressa) [45 ] Tyler [46 ] Ca Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

3 : 59 Neumann [38 ] P 5mm [22 ] [7 ] [22 ] : ; ; ; [10 ] [ ] Koeppe [32 ] P ( Helianthus annuus) [22 ] Elroy [29 ] P ( V igna vexillate) 7219 % 9914 % 317 P 6417 % 80 % [17 ] Al [42 ] Zn 28 % 59 % 4 % [15 ] [34 70 % ] 314 ; P CO 2 [38 ] [2 ] Norby [39 ] CO Ayers [27 ] O 2 CO 2 CO Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

4 [9 ] 3 [44 ] 412 p H Materechera [36 ] > 915mm mm p H p H H + 2 H + 2 p H ( [17 ] H + Fe 3 + Al 3 + [40 ( Cucumis ] [21 ] saliv us) p H [48 ] Patterson [41 ] 1 Killham [31 ] ) 10-3 mol t2 P2 [6 ] 414 [1 ] 10mg kg % 20mg kg - 1 H + 50mg kg Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

5 : 61 P P [11 Fe ] [24 Zn Mn ] [23 ] 95 % K [12 K ] P [28 ] P > > [11 ] > > > 1138mg kg mg kg - 1 [11 ] Pb 2 + Cu 2 + Cd 2 + [24 ] [13 ] [33 ] [12 ] [8 ] [20 ] VA [3 18 ] [30] Tsinghua Tongfang Optical Disc Co. Ltd. All rights reserved.

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