伊犁绢蒿荒漠植被特征和多样性退化演替分析

doi:10.6048/j.issn.1001-4330.2017.09.019

新疆农业科学 ›› 2017, Vol. 54 ›› Issue (9): 1721-1729.DOI: 10.6048/j.issn.1001-4330.2017.09.019

伊犁绢蒿荒漠植被特征和多样性退化演替分析

张小侠¹, 董乙强², 安沙舟², 李坤²

1.乌苏市草原工作站,新疆乌苏 833000;
2.新疆农业大学草业与环境科学学院,乌鲁木齐 830052

收稿日期:2017-06-17 发布日期:2020-07-22
通信作者: 安沙舟(1956-),陕西富平人,教授,博士,博士生导师,研究方向为草地资源与生态,(E-mail)xjasz@126.com
作者简介:张小侠(1984-),女,江苏赣榆人,畜牧师,研究方向为草原保护与生态,(E-mail)xx0527@126.com
基金资助:
国家重点研发计划“科技基础资源调查”专项课题“塔里木-准噶尔盆地荒漠主要植物群落调查”(2017FY100201)

Analysis of Community Characteristics and Plant Diversity in Different Degraded Stages of Seriphidium transillense Desert

ZHANG Xiao-xia¹, DONG Yi-qiang², AN Sha-zhou², LI Kun²

1. Grassland Station of Wusu City, Wusu Xinjiang 833000, China.
2. College of Pratacultural and Environmental Sciences, Xinjiang Agricultural University, Urumqi 830052, China

Received:2017-06-17 Published:2020-07-22
Correspondence author: AN Sha-zhou (1956-), native place: Fuping, Shanxi. DAG; research field: Grassland resource and ecology, (E-mail) xjasz@126.com
Supported by:
Special Project of National Key R & D Program: Investigation of the Basic Resource of Science and Technology "The Investigation of Tarim - Junggar Basin Desert Plant Communities" (2017FY100201)

摘要/Abstract

摘要： 【目的】研究蒿属荒漠春季植被特征和多样性的退化演替规律,为建立生态恢复及可持续利用方案提供一定的基础资料。【方法】以伊犁绢蒿(Seriphidium transiliense)荒漠为对象,采用野外调查的方法,研究轻度退化(LD)和重度退化(HD)荒漠的群落特征、多样性指数的春季演替规律。【结果】(1)随着退化演替程度的加重,群落高度显著降低了20.8%,群落密度显著增加了6.1倍(P<0.05),但群落盖度和地上现存量对退化的响应不明显(P>0.05)。(2)随着退化程度的加重,Patrick丰富度指数、Simpson优势度指数Shannon-Wiener指数和Pielou均匀度指数分别显著增加了73.5%,52.1%,91.3%和26.9%(P<0.05)。【结论】在退化演替过程中,伊犁绢蒿荒漠朝着植被种群低矮化,群落复杂化的方向演替。

关键词: 伊犁绢蒿; 群落特征; 轻度退化; 重度退化; 多样性

Abstract: 【Objective】 To explore the vegetation characteristics and biodiversity of degradation succession in desert in spring in the hope of providing some basic data for the establishment of ecological restoration and sustainable utilization plan.【Method】The Seriphidium transiliense desert was taken as the research object, and the community characteristics and vegetation biodiversity indexes in lightly degraded and heavily degraded desert were studied though field investigation.【Result】(1) The community height decreased by 20.8%, and the community density increased by 6.1 times with the degree of degraded succession increased (P<0.05), but the response of community cover and aboveground biomass on degradation was not significantly diffident (P>0.05). (2) Patrick richness index, Simpson dominant index, Shannon-Wiener diversity index and Pielou evenness index significantly increased by 73.5%, 52.1%, 91.3% and 26.9% with the increased degree of degraded succession (P<0.05), respectively. 【Conclusion】During the process of degeneration succession, the Seriphidium transiliense desert is tending towards low and dwarfing vegetation population and complicated community.

Key words: Seriphidium transiliense; communities characteristics; lightly degraded; heavily degraded; biodiversity

中图分类号:

S812

张小侠, 董乙强, 安沙舟, 李坤. 伊犁绢蒿荒漠植被特征和多样性退化演替分析[J]. 新疆农业科学, 2017, 54(9): 1721-1729.

ZHANG Xiao-xia, DONG Yi-qiang, AN Sha-zhou, LI Kun. Analysis of Community Characteristics and Plant Diversity in Different Degraded Stages of Seriphidium transillense Desert[J]. Xinjiang Agricultural Sciences, 2017, 54(9): 1721-1729.

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伊犁绢蒿荒漠植被特征和多样性退化演替分析

Analysis of Community Characteristics and Plant Diversity in Different Degraded Stages of Seriphidium transillense Desert

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