|Table of Contents|

Altitudinal Variation in Seed Dispersal Functional Traits of Meconopsis integrifolia and Its Correlation Relationships With Population Spatial Distribution Pattern(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年20
Page:
62-67
Research Field:
Publishing date:

Info

Title:
Altitudinal Variation in Seed Dispersal Functional Traits of Meconopsis integrifolia and Its Correlation Relationships With Population Spatial Distribution Pattern
Author(s):
ZHANG Niwen1; WANG Hao2; WU Yun2; LIU Guangli2
(1.Sichuan Aerospace Vocational College，Guanghan，Sichuan 618300；2.College of Landscape Architecture，Sichuan Agricultural University，Chengdu，Sichuan 611130)
Keywords:
Meconopsis integrifolia; seed dispersal; functional traits; population; spatial distribution pattern
PACS:
-
DOI:
10.11937/bfyy.201620018
Abstract:
In order to point the ecological adaptation strategy of Meconopsis integrifolia in alpine habitats，seed dispersal functional traits and population spatial distribution pattern were studied at five different altitudes plots，by using field investigation and point pattern analysis.Furthermore，pearson correlation analysis was used to test the correlations between functional traits and population spatial distribution pattern.The results showed that number of ovule per flower increased along the increasing elevations，however，mass of 1 000 grains，pedicel length and plant height decreased.One-way ANOVA indicated that there were no significant differences (P＞0.05) in the number of ovule per flower and mass of 1 000 grains among five different altitudes plots.However，differences of pedicel length and plant height among different altitudes plots were significant (P＜0.05).There was a clumped distribution at the scale 0-5.82 m，0-8.6 m，0-8.8 m，0-9.2 m and 0-20 m in plot 1(4 452 m)，plot 2 (4 215 m)，plot 3 (4 081 m)，plot 4 (3 841 m) and plot 5 (3 681 m) respectively.It was significantly different in the space scale of spatial distribution pattern among different altitudes plots.Specifically，the population clumped spatial scale decreased along the increasing altitudes.Pearson correlation analysis indicated positive correlations between the pedicel length and the clumped spatial scale，between the plant height and the clumped spatial scale，between the mass of 1 000 grains and the clumped spatial scale.By contrast，correlation between the number of ovule per flower and the clumped spatial scale was negative.There was no significant correlation between seed dispersal functional traits and the clumped spatial scale among five different altitudes plots.

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Last Update: 2016-11-22