YANG Hui, HUANG Rong-zhen, LI Feng, et al. Community Species Composition Changes in Ecological Restorated Area of Serious Eroded Red Soil[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 53-58.
DOI:
YANG Hui, HUANG Rong-zhen, LI Feng, et al. Community Species Composition Changes in Ecological Restorated Area of Serious Eroded Red Soil[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 53-58. DOI: 10.13961/j.cnki.stbctb.2014.04.024.
Community Species Composition Changes in Ecological Restorated Area of Serious Eroded Red Soil
Taking Pinus massoniana forest with intense disturbance as control
species composition and important value(IV) of the ecological restoration community in serious eroded red soil
27 years after in different types of human induced vegetation were analyzed
such as Pinus massoniana forests without disturbance
Pinus massoniana forests with Bamboo-burl-groove
Pinus massoniana forests with planting grass and Bamboo-burl-groove
check dam and non-check dam Pinus massoniana forest
Pinus elliotti forest with bamboo-burl-groove. The results showed that:(1) Species composition of tree layer was simple in all five kinds of slope forests dominated by Pinus massoniana and Pinus elliotti. Community varieties richly but IV distribution is not consistent in the shrub layer
especially ecological restoration effect is most obvious in Pinus elliotti forest with bamboo-burl-groove. The dominance of Gardenia jasminoides Ellis with semi-shade tolerance and evergreen leaf is maximum
followed by photophilous and deciduous chamaecereus sylvestri
and Pinus elliotti seedlings dominance is minimum
with IV of 0.12
0.11
0.02
respectively. The herb layer species composition is simple
Pinus massoniana forest without disturbance is the most obvious in restoration
the total herb coverage reaches 40%.(2) In the channel
community species at tree and shrub layers in check dam are more significant than that non-check dam
especially for evergreen and shade species
and each IV is different. The total coverage in herb layer has great disparity which is affected by the tree layer and shrub layer
with 90% in non-check dam and only 10% in check dam. It indicates that different ecological restoration strategies would facilitate plant species composition and accelerate plant community succession in serious eroded red soil through protecting and improving the soil water and nutrient conditions.