[en]+[zh]Study on Forest Landscape Restoration - ITTO

234 <strong>Study</strong> on Forest Landscape Restoration
species such as Aporosa chin<strong>en</strong>sis, Lithocarpus corneus, Liquidambar formosana,
Artocarpus tonkin<strong>en</strong>sis, Trema tom<strong>en</strong>tosa, Radermachera hainan<strong>en</strong>sis,
Lithocarpus pseudovestitus and Sterculia lanceolata, as well as Helicteres hirsute,
Glochidion dasyphyllum, Dolichandrone cauda-felina, Glochidion wrightii,
Psychotria rubra, Cratoxylum, Cochinchin<strong>en</strong>se and other shrub species.
Grass storey had rich species and the coverage was 100%. There are Aporosa
chin<strong>en</strong>sis, Euodia lepta, Psychotria rubra, Trema tom<strong>en</strong>tosa, Ormosia pinnata,
Diospyros strigosa, Flacourtia indica, Acronychia oligophlebia, Arytera
littoralis, Wrightia pubesc<strong>en</strong>s, Phoebe h<strong>en</strong>ryi and other tress seedlings, and
herbaceous plants such as Chrysopogon aciculatus, Kyllinga brevifolia etc. In
addition, the community of secondary forest has rich vines, such as Smilax
china, Papilionaceae, Pueraria lobata and Abrus mollis. Thus communities of
secondary forest still have valuable tree saplings and seedlings.
9.2.3 Species diversity of arbor storey
As shown in Table 9. 6, there are significant differ<strong>en</strong>cesin species diversity of
arbor storey among differ<strong>en</strong>t communities of secondary forest in the demonstration
area. Species Richness (R) of secondary forest communities were 25, 6,
24 and 32 respectively. Diversity index (SW) were 3.79, 1. 19, 2.94 and
4.41 respectively. The Ev<strong>en</strong>ness (E) of communities were 0.82, 0.46,
0.82 and O. 88 while Ecological Dominance (ED) were O. 12, 1. 00, o. 16
and O. 07 respectively. Compared to degraded primary forest, secondary forest
showed much lower species richness and higher ecological dominance.
Table 9. 6
Characters of secondary forests
Factors Community 1
Community 2
Community 3
Community 4
Species Richness (R) 25
6
24
32
Diversity index (SW) 3. 79
1. 19
2.94
4.41
Ev<strong>en</strong>ness (E) 0.82
Ecological Dominance (ED) O. 12
0.46
1. 00
0.82
o. 16
0.88
0.07
Average (DBH)/cm 6.44
4.48
Average Height ( Him) 5.23
4.74
Average D<strong>en</strong>sity (N)/N· hm- 2 5,850
6,600
6,828
8,300
Average Volume (V)/m 3 • hm- 2 10. 12
26.09
Note: DBH of trees in Symplocos laurina community and Lithocarpus pseudovestitus community were not
inv<strong>en</strong>toried.