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| 伊犁河谷不同生境假苇拂子茅种群构件的生产力特征 | |
| 引用本文： | 赵玉,李海燕,贾娜尔,张维,任艳利,贾风勤,杨允菲.伊犁河谷不同生境假苇拂子茅种群构件的生产力特征[J].安徽农业科学,2008,36(25). |
| 作者姓名： | 赵玉 李海燕 贾娜尔 张维 任艳利 贾风勤 杨允菲 |
| 作者单位： | 1. 伊犁师范学院化学与生物科学学院,新疆伊宁,835000;东北师范大学草地科学研究所,植被生态科学教育部重点实验室,吉林长春,130024 2. 伊犁师范学院化学与生物科学学院,新疆伊宁,835000 3. 东北师范大学草地科学研究所,植被生态科学教育部重点实验室,吉林长春,130024 |
| 基金项目： | 伊犁师范学院院级重点课题 |
| 摘 要： | 目的]研究伊犁河谷区羊草种群构件的质量性状。方法]以新疆伊犁河谷地区不同生境的假苇拂子茅种群为研究对象,以年龄结构为切入点,对不同生境条件下假苇拂子茅分蘖株和根茎的生产力进行研究。结果]在生长季末,4个样地的假苇拂子茅种群分蘖株的生产力表现为巩乃斯河种羊场段中心岛>伊犁河雅玛图段河岸>巩乃斯河黑山头段中心岛>伊犁河巴依托海乡段河滩,且均以1龄级的最高;不同生境根茎的生产力表现伊犁河雅玛图段河岸>巩乃斯河种羊场段中心岛>巩乃斯河黑山头段中心岛>伊犁河巴依托海乡段河滩,年龄组成均以1龄级根茎生产力最高。结论]牲畜啃食和淹水扰动对分蘖株物和根茎的生产力均有不利影响。 |
| 关 键 词： | 假苇拂子茅种群 分蘖株 根茎 生产力 年龄结构 |
Productivity Characteristics of the Population Module of Calamagrostis pseudophragmites in Different Habitats of Yili River Valley |
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| Abstract: | Objective] The aim of the research is to study the qualitative characters of the population modules of Calamagrostis pseudophragmits in the area of Yili River Valley.Method] With C.pseudophragmits in different habitats of Yili River Valley in Xinjiang as the research objects,taking age structure as cutin point,the productivity of tillers and rhizomes of C.pseudophragmits under different habitats conditions were studied.Result] At the end of growing season,the tiller productivity of C.pseudophragmits population in 4 sample plots was as follows: the central island in breeding sheep farm segment of Kunes River > riverbank in Yamatu segment of Yili River > the central island in Heishantou segment of Kunes River > river shoal in Bayituohai Countryside segment of Yili River.And the productivity with 1 age class in 4 sample areas was all highest.The rhizome productivity in different habitats was as follows: riverbank in Yamatu segment of Yili River > the central island in breeding sheep farm segment of Kunes River > the central island in Heishantou segment of Kunes River > river shoal in Bayituohai Countryside segment of Yili River.The rhizome productivity with 1 age class in 4 sample areas was all highest.Conclusion] Livestock grazing and inundation disturbing have unfavorable influences on the productivity of tillers and rhizomes. |
| Keywords: | Calamagrostis pseudophragmits population Tiller Rhizome Productivity Age structure |
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