|
| Analysis of Species Diversity of Different ForestTypes in Xinfengjiang Reservoir Area |
| |
| DOI：10.16768/j.issn.1004-874X.2022.04.005 |
|
| Hits: 1020 |
| Download times: 736 |
| Abstract: |
| 【Objective】 Forest is a region with the richest biodiversity. Researches on plant diversity of
different forest types are of great importance to study vegetation characteristics and its conservation. Xinfengjiang
Reservoir is an important water source in South China, and forest in the reservoir area has an important role in
biodiversity conservation and water purification. The analysis on species diversity of different forest types in the
Xinfengjiang reservoir area can provide a scientific basis for the conservation and tending management of forests
in the reservoir area.【Method】 Three types of typical forests, i.e., evergreen broad-leaved forest, coniferous and
broad-leaved mixed forest and coniferous forest were selected as study areas. The tree, shrub and grass in the plots
were recorded and species composition and diversity index were analyzed.【Result】 The species composition of forest vegetation in the Xinfengjiang reservoir area was relatively rich, with 47 families, 66 genera and 165 species
recorded in the sample sites, among them, the numbers of species and individuals of Lauraceae, Fagaceae,
Cupressaceae and Rubiaceae were higher. In general, species diversity showed a trend of evergreen broad-leaved
forest > coniferous and broad-leaved mixed forest > coniferous forest. The species richness indexes of different forest
types ranged from 19 to 32, the Shannon-Wiener indexes from 2.02 to 2.92, the Simpson dominance indexed
from 0.77 to 0.92, and the Pielou evenness index from 0.69 to 0.85.【Conclusion】 The species diversity of evergreen
broad-leaved forests in the reservoir area is high. Scientific and effective tending measures should be taken to promote
coniferous forest succession reasonably. Long-term locational monitoring is also necessary to understand the relationship
between forest and environmental factors. The study results can provide a scientific basis for conservation and utilization
of biodiversity in the Xinfengjiang reservoir area. |
|
View Full Text
View/Add Comment Download reader |
|
|
|
