干旱区生态环境知识资源中心(Arid): 封育对宁夏盐池县草地植物组成及群落复杂性的影响

Arid

	封育对宁夏盐池县草地植物组成及群落复杂性的影响
其他题名	Effects of Enclosing on Vegetation Composition and Community Complexity in Grassland in Yanchi County, Ningxia Hui Autonomous Region
	刘小丹 1; 张克斌2 ; 林田苗 3; 刘建康 2
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2015
卷号	35 期号:4 页码:304-307
中文摘要	[目的]定量评价封育对宁夏盐池县沙化草地植物组成及群落复杂性的影响,为半干旱区草地植被恢复与管理提供理论依据。[方法]对3种封育类型老、新封育区和对照区在2003-2013年样线与样方结合法进行植被调查,并用群落总复杂性、无序结构复杂性、有序结构复杂性3种指数来分析其复杂性特征。[结果]老封育区由黑沙蒿(Artemisia ordosica)和刺沙蓬(Salsola ruthenica)群落逐渐演替为阿尔泰狗娃花(Heteropappus altaicus)群落,新封育区和对照区主要是黑沙蒿群落;新封育区和对照区的植被生物量与盖度大多年份高于老封育区;封育可增加无序与有序结构复杂性,进而增加群落总复杂性。[结论]长期封育降低了植被数量特征值;随封育年限的延长,群落复杂性指数约以5 a左右为波动周期,说明适宜封育年限为5 a。
英文摘要	[Objective] The effects of the enclosing on vegetation composition and community complexity were examined in grassland of Yanchi County, Ningxia Hui Autonomous Region, in order to provide the theoretical basis for vegetation restoration and grassland management in semi-arid area. [Methods] By quadrat method, the vegetation was investigated from 2003 to 2013 with respect to the impacts of different fencing time on vegetation composition and three kinds of complexity index(total complexity, disorder-based complexity, and structural complexity). Three processing methods of study region were adopted: old enclosure area, new enclosure area and control area. [Results] Artemisia ordosica and Salsola ruthenica communities gradually converted into Heteropappus altaicus community in the old enclosure area, and Artemisia ordosica was dominant species in new enclosure and control area. The biomass and coverage in the old enclosure area were less than those in the new enclosure area and control area; enclosure increased disorder-based complexity and structural complexity, thus which made the total community complexity increase. [Conclusion] The long-term enclosure is not conducive to vegetation recovery. The high peak and low peak values of each complexity index appeared regularly with the cycle of five-year. So, 5-year is appropriate enclosure period for grassland in the semi-arid area.
中文关键词	封育草地 ; 植物组成 ; 群落复杂性
英文关键词	enclosure grassland vegetation composition community complexity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5515456
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233321
作者单位	1.中国环境管理干部学院, 水土保持与荒漠化防治教育部重点实验室, 秦皇岛, 河北 066102, 中国; 2.北京林业大学水土保持学院, 水土保持与荒漠化防治教育部重点实验室, 北京 100083, 中国; 3.水利部水土保持植物开发管理中心, 北京 100038, 中国
推荐引用方式 GB/T 7714	刘小丹,张克斌,林田苗,等. 封育对宁夏盐池县草地植物组成及群落复杂性的影响[J]. 北京林业大学,2015,35(4):304-307.
APA	刘小丹,张克斌,林田苗,&刘建康.(2015).封育对宁夏盐池县草地植物组成及群落复杂性的影响.水土保持通报,35(4),304-307.
MLA	刘小丹,et al."封育对宁夏盐池县草地植物组成及群落复杂性的影响".水土保持通报 35.4(2015):304-307.