| 李文娟，甘先华，张卫强，何宛霖，黄芳芳.新丰江库区不同森林类型的物种多样性分析[J].广东农业科学,2022,49(4):35-45 |
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新丰江库区不同森林类型的物种多样性分析 |
| Analysis of Species Diversity of Different ForestTypes in Xinfengjiang Reservoir Area |
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| DOI：10.16768/j.issn.1004-874X.2022.04.005 |
| 中文关键词: 新丰江库区 森林类型 重要值 物种多样性 |
| 英文关键词: Xinfengjiang reservior area forest type importance value species diversity |
| 基金项目:广东省林业科技创新项目（2021KJCX003）；广东省林业科技创新平台项目（2021-KYXM-09） |
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| 中文摘要: |
| 【目的】森林是生物多样性最丰富的区域，探讨不同森林类型物种多样性对研究植被特征及其保
护具有重要意义。新丰江水库是华南地区重要的水源地，其库区森林在生物多样性保护和净化水质等方面有着
重要作用。分析新丰江库区中不同森林类型的物种多样性，可为库区内森林的保护和抚育管理提供科学依据。【方
法】选择 3 个具有典型性和代表性的区域，即常绿阔叶林、针阔混交林、针叶林作为样地，记录样方内乔灌草
植物并分析物种组成和多样性指数。【结果】新丰江库区森林植被物种组成较为丰富，样地内共记录到物种 47
科 66 属 165 种，其中樟科 Lauraceae、壳斗科 Fagaceae、柏科 Cupressaceae 及茜草科 Rubiaceae 等物种数和个体
数较多；物种多样性总体上呈现常绿阔叶林 > 针阔混交林 > 针叶林的变化趋势，不同森林类型乔木层物种丰富
度指数介于 19~32、Shannon-Wiener 指数介于 2.02~2.92、Simpson 优势度指数介于 0.77~0.92、Pielou 均匀度指数
介于 0.69~0.85。【结论】库区中常绿阔叶林物种多样性较高，应采取科学有效的抚育措施，促进针叶林向合理
方向演替，并辅以长期定位监测了解库区森林发展及其与环境要素的关系，为新丰江库区生物多样性保护与利
用提供科学依据。 |
| 英文摘要: |
| 【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. |
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