ISWC OpenIR  > 水保所知识产出(1956---)
黄土丘陵区撂荒群落地上生物量和物种多样性关系
高艳1,2; 杜峰1,4; 王雁南3
2017
Source Publication水土保持研究
Volume24Issue:3Pages:96-102
Abstract

研究黄土丘陵区撂荒群落生物量与物种多样性的关系及其影响机制,有助于明确群落演变的机理,可对该区
植被恢复重建、群落演替、生物多样性保护和维持具有重要意义。为此,选取该区5个典型撂荒群落,在群落尺度上,
分析地上生物量的月动态,重点研究了地上生物量与物种多样性的关系。结果表明:(1)5个撂荒群落地上生物量总
体呈上升趋势,月份之间差异极显著,群落生物量由大到小为白羊草(Bothriochloa ischaemum)群落>茭蒿(Artemisia
giraldii)群落>铁杆蒿(Artemisia sacrorum)群落>猪毛蒿(Artemisia scoparia)群落>达乌里胡枝子(Lespedeza
dahurica)群落;(2)群落地上生物量与物种多样性关系表现为线性增加和线性减少两种形式。猪毛蒿群落中二者呈
线性增加。铁杆蒿和白羊草群落地上生物量随丰富度的增加线性增加。白羊草和达乌里胡枝子群落地上生物量随
均匀度的增加线性减少。空白生态位的占有和利用、生态位互补效应、种间相互作用是解释二者关系的内在机制,冗
余种假说效应可能会导致不显著关系。

Other Abstract

Abstract:The study on relationship between aboveground biomass and species diversity of abandoned old-field
community and its mechanism in the hilly region of the Loess Plateau is helpful for understanding community
succession process and is also important for vegetation reconstruction,biodiversity protection,and ecosystem
health maintenance.In this study,five typical communities were selected to investigate the monthly dynamics of
aboveground biomass and its correlation with biodiversity at community scale.The results showed that:
(1)the aboveground biomass of the five communities increased from May to September and the difference
between different months were significant(p<0.01);the community aboveground biomass was the highest
in Bothriochloa ischaemum community (375.86g/m2),followed by Artemisia giraldii (182.42g/m2),
Artemisia sacrorum (91.79g/m2),Artemisia scoparia (76.1g/m2)communities,the lowest biomass was
observed in Lespedeza dahurica(51.49g/m2)community;(2)linearly positive and negative relations were
found with respect to the relationships of aboveground biomass and species diversity index;in Artemisia scoparia
community,aboveground biomass increased linearly with increase of species diversity index,while no
relation was found in the Artemisia giraldii community;the aboveground biomass increased linearly with
increase of Margalef index in Bothriochloa ischaemum and Artemisia sacrorum communities,and decreased
linearly with increase of Pielou index in Bothriochloaischaemumand Lespedeza dahuricacommunities.Furthermore,the influencing mechanism for the relation between aboveground biomass and biodiversity may result from occupation
and utilization of blank niche,niche complementarity,interspecific interactions and competition and exclusion effect.
The redundant species hypothesis perhaps resulted in the insignificant relations

Keyword物种多样性 地上生物量 影响机制 黄土丘陵区
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8424
Collection水保所知识产出(1956---)
Affiliation1.中国科学院水利部水土保持研究所
2.中国科学院大学
3.西北农林科技大学
4.西北农林科技大学水土保持研究所
First Author Affilication中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
高艳,杜峰,王雁南. 黄土丘陵区撂荒群落地上生物量和物种多样性关系[J]. 水土保持研究,2017,24(3):96-102.
APA 高艳,杜峰,&王雁南.(2017).黄土丘陵区撂荒群落地上生物量和物种多样性关系.水土保持研究,24(3),96-102.
MLA 高艳,et al."黄土丘陵区撂荒群落地上生物量和物种多样性关系".水土保持研究 24.3(2017):96-102.
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