Table 10 The survival pressure of B. racemosa in SX-AI community.

From: Interspecific competition and survival pressures in endangered Barringtonia racemosa populations of Mainland China

Competing tree species

Trees proportion

Coverage area proportion

PIij (Mean ± SD)

PIit

PIi

D. trifoliata

-

25.00%

2.45 ± 0.40a

7.35

23.88

M. micrantha

-

20.00%

1.87 ± 0.48ab

5.61

S. apetala

10.00%

 

1.36 ± 0.70b

4.08

I. cairica

-

10.00%

1.31 ± 0.35b

3.94

B. racemosa

55.00%

-

0.40 ± 0.17c

1.21

E. camaldulensis

15.00%

-

0.30 ± 0.21c

0.89

A. aureum

-

5.00%

0.14 ± 0.08c

0.41

A. ilicifolius

-

40.00%

0.10 ± 0.02c

0.3

P. karka

20.00%

-

0.03 ± 0.03c

0.1

  1. The data in the table were calculated based on 11 B. racemosa sample trees; SX-AI: Suixi county B. racemosa-A. ilicifolius community; PIij: Individual plant survival pressure index; PIit: Population survival pressure index; PIi: Community survival pressure index; SD: standard deviation.
Back to article page