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亚热带中山地区草芦无性系种群的密度制约-应用生态学报
1997 2 8 1
CHINESE JOURNA L OF APPLIED ECOLOGY , Feb. 1997, 8( 1) 7782
*
杨允菲 ( , 130024)
傅林谦 ( , 100094)
,
. , ,
, .
.
Density dependence of Phalar is ar ua nd ina cea clonal population on middle mountain region
of subtropical zone of China. Yang Yunfei (N ational L aboratory of Grassland Ecological
, , 130024) , (
Engineering N ortheast N ormal University Changchun Fu Linqian I ns titute of
, , 100094) . - . .
A nimal S cience Chinese A cad emy of A gricultural Sciences Beij ing Chin J A -
l. Ecol. , 1997, 8( 1) : 7782.
The quant itative anal sis on the densit dependence of Phalaris arund inacea clonal popu-
lation on m iddle mountain regions of subtropical zone of China show s t hat mean tiller
w eight , mean w eight of leaves per tiller and mean stem w eight per tiller are decreased in
pow er function w ith the increase of population densit at different grow ing stages. At
flow ering stage, the reproductive development is restricted b the populat ion densit , and
the veget ative growth not onl b t he tiller densit , but also strongl b the populat ion
densit . The deat h rate of population is negat ivel correlat ed w ith its densit at different
growing stages.
Key words Phalaris arundinacea, Quantitative character , Densit dependence, Clonal pop-
ulation.
( P halar is ar und inacea)
1
, , ,
, pH 4. 98. 4 ,
, ,
, . ,
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