干旱区生态环境知识资源中心(Arid): 半干旱区农田杂草的生活史对策研究

Arid

	半干旱区农田杂草的生活史对策研究
其他题名	Study of life-history strategy of farmland weeds in semi-arid areas
	王斌世; 张荣
来源期刊	草业学报
ISSN	1004-5759
出版年	2011
卷号	20 期号:1 页码:257-260
中文摘要	2008-2009年通过利用当地常见的10种杂草种植于不同处理的农田,研究半干旱区农田杂草群落结构以及10种杂草群落组分种对环境因子的响应,结果表明,1)同一物种在不同的气候环境下,可以表现出不同的生活史策略.蝇虫实,田旋花和金荞麦2008年生活史策略分别具有竞争型(C)对策属性,胁迫忍耐型(S)对策属性和中间型(C-S)对策属性,而2009年生活史策略分别具有S对策属性,C-S对策属性和S对策属性.2)灰绿藜,狗尾草和短花针茅2008年生活史策略具有杂草型(R)对策属性,而2009年R对策属性不明显;紫花香薷,白花点地梅和二裂委陵菜2年的生活史策略属性和猪毛菜2008年生活史策略属性不明显,2009年猪毛菜生活史策略具有S对策属性.3)生活史策略随占支配地位的环境因子的变动而做出调整,即生活史特性响应不同环境的生态属性,引起植物的功能性在Grime模型C-R-S轴上迁移.2008-2009年的年际变化中(气候因素占支配地位)金荞麦生活史策略具有中间型(S-R)对策属性,田旋花具有中间型(C-S)对策属性
英文摘要	From 2008 to 2009, the response to environmental factors of the weed community structure in semiarid cropland was researched by selecting 10 native weeds and planting them in differentially treated cropland.1) The same species in different climates showed different life-history strategies: Corispermum, Convolvulus arvensis, and Fagopyrum dibotrys tended towards the competitor(C) strategy, stress tolerant(S) strategy, and mixed competitor-stress tolerant(C-S) strategy in 2008, but towards the stress tolerant(S) strategy, competitor-stress tolerant(C-S) strategy in 2009.2) Chenopodium glaucum, Setaria viridis, and Stipa breviflora tended towards the ruderal(R) strategy in 2008, but they did not show this strategy in 2009. Elsholtzia argyi, Androsace ncana, and Potentilla bifurca in both years, and Salsola in 2008, had no definite life-history strategies, although Salsola tended towards the S strategy in 2009.3) With the variety of changing environmental factors, life-history strategies changed accordingly, that is, the life history characteristics responded to ecological attributes,so plant functionality moved in the C-R-S axis of the Grime model. F.dibotrys tended towards a mixed stress tolerant-ruderal(S-R) strategy and C.arvensis tended towards a mixed competitor-stress tolerance(C-S) strategy in annual variation from 2008 to 2009
中文关键词	杂草 ; 生活史策略 ; 作物干扰 ; 群落结构
英文关键词	weeds life-history strategies crop interference community structure
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4130069
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226212
作者单位	兰州大学, 干旱与草地生态教育部重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	王斌世,张荣. 半干旱区农田杂草的生活史对策研究[J]. 兰州大学,2011,20(1):257-260.
APA	王斌世,&张荣.(2011).半干旱区农田杂草的生活史对策研究.草业学报,20(1),257-260.
MLA	王斌世,et al."半干旱区农田杂草的生活史对策研究".草业学报 20.1(2011):257-260.