|本期目录/Table of Contents|

[1]刘方炎,朱华,施济普,等.元江干热河谷植物群落特征及土壤肥力研究[J].应用与环境生物学报,2007,13(06):782-787.
 LIU Fangyan,et al..Characteristics of Plant Communities and Their Soil Fertilities in Dryhot Valley of Yuanjiang County, Yunnan, China[J].Chinese Journal of Applied & Environmental Biology,2007,13(06):782-787.
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元江干热河谷植物群落特征及土壤肥力研究()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
13卷
期数:
2007年06期
页码:
782-787
栏目:
综述
出版日期:
2007-12-25

文章信息/Info

Title:
Characteristics of Plant Communities and Their Soil Fertilities in Dryhot Valley of Yuanjiang County, Yunnan, China
作者:
刘方炎朱华施济普陈晓鸣
(1中国科学院西双版纳热带植物园昆明分部昆明650223; 2中国科学院研究生院北京100039) (3中国林业科学研究院资源昆虫研究所昆明650224)
Author(s):
LIU Fangyan et al.
(1Kunming Section of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China) (2Graduate University of Chinese Academy of Sciences, Beijing 100039, China) (3Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, China)
关键词:
关键词 元江干热河谷物种多样性植物区系土壤肥力
Keywords:
Keywords Yuanjiang County dryhot valley species diversity floristic analysis soil fertility
摘要:
摘要对云南省元江县境内元江河谷山坡上的5种主要植被类型的群落特征、植物多样性现状、植物区系组成以及不同群落土壤理化性质进行了比较研究.结果表明:干热河谷区内,植物群落生活型组成主要以小乔木、灌木和草本植物为主,基本没有高大的乔木树种和大型藤本植物.草本植物生长旺盛,物种多样性和丰富度均较乔灌层高,但均匀度较其低. 5种群落之间的相似性程度较低,且各群落均处于相对稳定的状态.各群落中共记录有61个科,144个属,194个物种,其植物区系的泛热带特征比较明显,其中泛热带分布科有31个,占除去广布科以外所有科的775%,泛热带分布属有50个,占除去广布属以外所有属的38.2%.蝶形花科Papilionaceae、禾本科Gramineae、大戟科Euphorbiaceae、菊科Compositae、锦葵科Malvaceae等科在元江干热河谷植被中占有极为重要的地位.群落土壤理化性质的研究表明,元江干热河谷各类植被的土壤元素中,除了磷元素极其缺乏以外,大多数处于中等以上水平.土壤肥力状况与植被的生长状况之间关系紧密,其中,土壤肥力最好的是群落结构比较复杂、残存的稀树旱生林.图1表5参24
Abstract:
Abstract Phytosociological characteristics, plant diversity, floristic composition and soil physicochemical properties of five main plant communities in the dryhot valley of Yuanjiang County, Yunnan Province were studied. The results indicate: (1) the plant communities are composed mainly of small trees, shrubs and herbs, with fewer large trees and lianas; (2) the herbaceous plants have a higher plant diversity and greater species richness than trees and shrubs, but lower evenness indexes; (3) the similarity is small among the five communities; (4) 194 species of 144 genera in 61 families are recorded from the five communities; (5) the flora of the communities mainly consists of pantropic geographical elements at family and generic levels; (6) Papilionaceae, Gramineae, Euphorbiaceae, Compositae and Malvaceae are the dominant families in the dryhot valley in Yuanjiang; (7) the soil is rich in chemical elements except phosphorus and soil fertility is closely correspondent to ground vegetation; and (8) the dry open woodland with a complex community structure has the highest soil fertility. Fig 1, Tab 5, Ref 24

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更新日期/Last Update: 2008-01-17