ARTICLES
42
Chinese Journal of Population, Resources and Environment 2005 Vol. 3 No.3
Corresponding author:
Evaluating the biodiversity of previous and current species
in a forest community is an important task. Some
methodological researches and effective applications have
been carried out widely in the temperate upland zone.
However, they lack related researches in coastal shelter
forests.This paper attempts to analyze them for Jiaonan
coastal forest communities fromthefollowing threeaspects,
the relationship between plant biodiversity structure and
its environment, the nexus between biodiversity and
growing patterns, as well as relationship among diversity
indices. Its aim is to provide theory and techniques for
protecting and sustainable utilizing the coastal forest
resources.
1 GENERAL SITUATION OF THE STUDY AREA
The research area lies in the coastal area in Jiaonan city
of Shandong Province, which belongs to the monsoon
temperate zone. The mean annual air temperature is
12.3˚C, ranging from the lowest -16.3˚C to the highest
37.4˚C.Frost free period is 202 days, sunlight period is
2540.1 hours,and thetotalsolar radiationis120.5 kl/cm
2
.
The total precipitation is 788.4mm/a, and 62.3% focuses
in the period from June to August, the evaporation is
1543.6mm/a, the annualvelocityis 3.4m/s.The elevation
ranges from 2m to 10m; the dominant soil is coastal sand
blown by wind with PH 7.6, and the rest part is brown
soil distributed in the coastal hilly area. The common
disaster isdrysirocco,tide, sea brume,typhoon, continuous
rainy days and hurricane etc..
2 METHODOLOGIES
2.1 Field survey methodologies
Twelve typical samples were selected, including 8 arbor
forests, 1shrub forestand 3herbs. In the paper the sample
Study on Community Diversity of Coastal Shelter
Forest in Jiaonan
Xu Jingwei
1,2
, Li Chuanrong
3
,LiQi
4
,
Zheng Li
3
, & Wang Weidong
1
1 Beijing Forestry University,Beijing 100871,China;
2 Shandong Acdemy of Forestry, Jinan 250014, China;
3 College of Forestry, Shandong Agricultural University, Taian 271018, China;
4 Shandong Normal University, Jinan 250014, China
Abstract: Based on the research of the plots in
coastal areas in Jiaonan city, Shandong Province, the
indices of richness, evenness and diversity of different
community types are analyzed. The results show that:
The richness indices indicates that arbor layers are
close to shrub layers, and both are lower than herbage
layers; the ranges among communities vary a little
except those of the arbor ones. Mostly the biodiversity
indices reveal that herbage, the arbor, the shrub;
Biodiversity of communities has great influences on
microclimate to a certain extent and is under the
control of regional environment.
Key words:coastal shelterforest, richness, biodiversity
index, microclimate
Li Qi (liqi@sdnu.edu.cn)
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