Effect of Mowing to the Leaf Area Index of the Leymus chinensis Population

doi:10.11733/j.issn.1007-0435.2004.04.013

›› 2004, Vol. 12 ›› Issue (4): 313-317.DOI: 10.11733/j.issn.1007-0435.2004.04.013

Previous Articles Next Articles

Effect of Mowing to the Leaf Area Index of the Leymus chinensis Population

BAO Ya-jing^1,3, LI Zheng-hai^2,3, HAN Xing-guo¹, ZHANG Ying³, ZHONG Yan-kai³

1. Laboratory of Quantitative Vegetation Ecology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;
2. Innovation Base of Regional Ecological Environment Protection, Chinese Academy of Environmental Science, Beijing 100012, China;
3. College of Life Science, Inner Mongolia University, Huhhot, Inner Mongolia Autonomous Region 010021, China

Received:2003-10-10 Revised:2004-02-18 Online:2004-11-15 Published:2004-11-15

刈割对羊草叶面积指数的影响

鲍雅静^1,3, 李政海^2,3, 韩兴国¹, 张颖³, 仲延凯³

1. 中国科学院植物研究所植被数量生态学重点实验室, 北京, 100093;
2. 中国环境科学研究院生态环境保护创新基地, 北京, 100012;
3. 内蒙古大学生命科学学院, 呼和浩特, 010021

作者简介:鲍雅静(1970- ),女,蒙古族,内蒙古包头市人,现为中科院植物研究所博士后,研究方向为草地干扰与恢复;韩兴国,通讯作者Authorforcorrespondence
基金资助:
国家自然科学基金项目(30300245)、中科院知识创新工程重大项目(KSCX1-08)和国家重大基础研究项目(G2000018603)资助

Abstract

Abstract: A comparison and analysis of the leaf area index(LAI)of Leymus chinensis of the Inner Mongolia L.chinensis population, which had undergone different mowing treatment for 17 years, reveals that the leaf area index of the L. chinensis population rapidly decreased under successive years of mowing, and the negative effect could be weakened by rotative mowings. Mowing every several years could promote the growth of L. chinensis population and increase its leaf area index, while mowing during the seed setting and post seed-setting stages would seriously decrease the leaf area index. Less serious negative effect to LAI occurs when mowing during the L.chinensis flowering stage. The least negative effect to the LAI of the grass happens when mowing after the seed has matured. The variation of L.chinensis LAI results mostly from the difference of the grass's offshoots density, also from the variation of the average leaf area, whereas the mean leaf number per offshoot affects very slightly the LAI. The LAI of L.chinensis. population is significantly correlated to the height of the vegetative tillers of each plant, the weight of dry matter, the density of the offshoots, and relative biomass, but not to the height of the reproductive tillers and the total community biomass.

Key words: Grassland science, Leaf area index (LAI),Leymus chinensis, Population, Mowing disturbance

摘要： 对经过17年不同刈割处理的内蒙古羊草草原羊草种群的叶面积指数进行了比较研究,结果表明:连年刈割使羊草叶面积指数迅速下降,轮休则能减弱下降趋势;隔几年刈割一次会促进羊草种群的生长,增加其叶面积指数;结实期和结实后期刈割,叶面积指数下降最大,开花期刈割次之,果后营养期刈割下降最小;羊草叶面积指数的变化主要由刈割后种群密度的变化引起,平均单叶面积对其影响较小;分株叶片数的变化对叶面积指数无显著影响;羊草叶面积指数的变化与羊草营养枝高度、干重、密度和种群相对生物量之间呈显著相关关系,与生殖枝高度和群落总生物量相关不显著.

关键词: 草原学, 叶面积指数, 叶片数量, 羊草种群, 刈割干扰

CLC Number:

S812

BAO Ya-jing, LI Zheng-hai, HAN Xing-guo, ZHANG Ying, ZHONG Yan-kai. Effect of Mowing to the Leaf Area Index of the Leymus chinensis Population[J]. , 2004, 12(4): 313-317.

鲍雅静, 李政海, 韩兴国, 张颖, 仲延凯. 刈割对羊草叶面积指数的影响[J]. , 2004, 12(4): 313-317.

0
/ / Recommend

Add to citation manager EndNote|Ris|BibTeX

URL: https://manu40.magtech.com.cn/Jweb_cdxb/EN/10.11733/j.issn.1007-0435.2004.04.013

https://manu40.magtech.com.cn/Jweb_cdxb/EN/Y2004/V12/I4/313

References

[1] 李博,雍世鹏,李忠厚.锡林河流域植被及其利用[A]. 见:中国科学院内蒙古草原生态定位站.草原生态系统研究(第三集)[C]. 北京:科学出版社,1988.84～183.
[2] 仲延凯,孙维,包青海.刈割对典型草原地带羊草(Leymus chinensis)的影响[J]. 内蒙古大学学报(自然科学版),1998,29(2):202～213.
[3] 杜占池,杨宗贵.刈割对羊草光合特性影响的研究[J]. 植物生态学与地植物学学报,1989,13(4):367～371.
[4] 杜占池,杨宗贵.不同密度的羊草种群结构及其光照分布的研究[J]. 草地学报,1999,7(3):236～244.
[5] 李月树,祝廷成.羊草种群地上部生物量形成规律的探讨[J]. 植物生态学与地植物学丛刊,1983,7(4):289～298.
[6] 王昱生.羊草(Leymus chinensis)种群无性系种群动态的初步研究[J]. 生态学报,1993,13(4):291～299.
[7] 杨允菲,张宝田.松嫩平原羊草种群营养繁殖的季节动态及其生物量与密度关系的分析[J]. 植物学报,1992,34(6):443～449.
[8] 李凤民,张振万.宁夏盐池长芒草草原和苜蓿人工草地水分利用研究[J]. 植物生态学与地植物学学报,1991,15(4):319～329.
[9] 宋炳煜.几个主要地面因子对草原群落蒸发蒸腾的影响[J]. 植物生态学报,1996,20(6):485～493.
[10] 戚秋慧,盛修武,姜恕,等.羊草和大针茅群落光合速率的比较研究[J]. 植物生态学与地植物学学报,1989,13(2):337～340.
[11] 杜占池,杨宗贵,崔骁勇.内蒙古典型草原地区5类植物群落叶面积指数的比较研究[J]. 中国草地,2001,23(5):13～18.
[12] 姜恕.草原生态系统试验地的设置及其植被背景[A]. 见:中国科学院内蒙古草原生态定位站.草原生态系统研究(第三集)[C]. 北京:科学出版社,1988.1～12.
[13] 鲍雅静,李政海,张颖.羊草叶面积测量方法的比较[J]. 内蒙古大学学报(自然科学版),2002,33(1):62～64.
[14] 鲍雅静,李政海,包青海,等.多年割草对羊草草原群落生物量及羊草和洽草种群重要值的影响[J]. 内蒙古大学学报(自然科学版),2001,32(3):309～313.
[15] 仲延凯,包青海.锡林河流域合理割草制度的研究[J]. 中国草地,1999,3:28～41

Effect of Mowing to the Leaf Area Index of the Leymus chinensis Population

刈割对羊草叶面积指数的影响

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	LI Chun-bin, WU Jing, ZHANG De-gang, YANG Wei. Framework Constructing of Scientific Data Service System in Grassland Study [J]. , 2014, 22(1): 12-15.
[2]	LI Xue-ling, LIN Hui-long. Fractal Theory Application on Grassland Science (Review) [J]. , 2011, 19(4): 705-711.
[3]	REN Ji-zhou, HOU Fu-jiang. Principles of Grassland Resources Management [J]. , 2004, 12(4): 261-263,272.
[4]	WANG Qing-suo. Dynamics of Alfalfa Growth and Nutrient in the Growing Period [J]. , 2004, 12(4): 264-267.
[5]	LIU Gui-he, HAN Jian-guo, WANG Kun. Effects of Boron, Molybdenum, Zinc and Macronutrients on the Yield and Quality of Alfalfa [J]. , 2004, 12(4): 268-272.
[6]	WAN Xiao-hong, WEI Ge-hong, YANG Ya-zhen, ZHU Yu-hua. Phenotype Diversities of Rhizobia Isolated from Different starins of Medicago sativa [J]. , 2004, 12(4): 276-280.
[7]	WANG Cheng-jie, ZHOU He, WANG Shi-ping. Studies on Climatic Suitability for Harvesting and Curing Alfalfa Hay in the Beijing Area [J]. , 2004, 12(4): 281-284.
[8]	ZHOU Hong-you, YANG He-tong, TANG Wen-hua. Occurrence of Fusarium Root Rot in Astragalus adsurgens and Identification of the Pathogens [J]. , 2004, 12(4): 285-288,297.
[9]	WANG Shu-yan, YUN Jin-feng, XU Jun, YANG Hong-qin. Growth and Morphology Characters of Elymus canadensis, Elymus sibiricus and Their Hybrid [J]. , 2004, 12(4): 294-297.
[10]	ZHANG Yu-ling, JU Xiao-feng, YANG Qing-chuan, LI Bo-lin, YANG Zhuo-meng. Genetic Diversity of Rumex k-1(Rumex patientia×R.tianschanicus cv.Rumex k-1) and Wild Rumex spp. [J]. , 2004, 12(4): 298-302.
[11]	YANG Heng-shan, WANG Guo-jun, CHEN Jie-hui, TIAN Li-shuang, WANG Cui-hua . Biological Characteristics of Pennisetum Hybrid“Nutrifeed” and the Effect of Cutting Frequencies on its Yield and Quality [J]. , 2004, 12(4): 318-321.
[12]	CAO Zi-long, ZHENG Cui-ling, ZHAO Ting-ning, SUN Bao-ping . Derivation of Grassland Degradation and Restoration Strategy in Naiman County of Inner Mongolia [J]. , 2004, 12(4): 322-326.
[13]	DONG Yong-ping, WU Xin-hong, LI Xin-yi, SHAN Li-yan, SONG Xue-feng . Application of 3S Technologies(Remote Sensing,Geographical Information System, and Global Positioning System)to Assess the Resources and Ecology of the Grassland of Xianghuang Banner, Inner Mongolia [J]. , 2004, 12(4): 327-331.
[14]	XI Qing-guo. Morphology and Cultural Properties of a Leymus chinensis Adjusting to Ground-Cover and Landscaping [J]. , 2004, 12(4): 332-336.
[15]	SUN Guo-rong, PENG Yong-zhen, YUE Zhong-hui, YAN Xiu-feng. Influence of Puccinellia tenuiflora on Phosphorus Nutrition of Alkaline Soil [J]. , 2004, 12(4): 337-340.