针茅及羊草对亚洲小车蝗生活力影响的定量分析

doi:10.11686/cyxb20130536

草业学报 ›› 2013, Vol. 22 ›› Issue (5): 302-309.DOI: 10.11686/cyxb20130536

针茅及羊草对亚洲小车蝗生活力影响的定量分析

张未仲¹,贺兵²,曹广春¹,张泽华^1*,乌亚汗²,刘世超²,王海荣³

1.中国农业科学院植物保护研究所农业部生物防治重点开放实验室,北京 100081;
2.内蒙古锡林郭勒盟镶黄旗草原工作站,
内蒙古镶黄旗 013250;3.内蒙古锡林郭勒盟镶黄旗国营苗圃,内蒙古镶黄旗 013250

出版日期:2013-10-20 发布日期:2013-10-20
通讯作者: E-mail:lgbcc@263.net
作者简介:张未仲(1979-),男,山西太原人,在读博士。
基金资助:
公益性行业(农业)科研专项“草原虫害监测预警及防控技术研究与示范” (20100379)资助。

Quantitative analysis of the effects of Stipa krylovii and Leymus chinensis on the factors of vitiality of Oedaleus decorus asiaticus

ZHANG Wei-zhong¹,HE Bing²,CAO Guang-chun¹,ZHANG Ze-hua¹,WU Ya-han²,LIU Shi-chao²,WANG Hai-rong³

1.Key Laboratory for Biological Control of Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
2.Grassland Research Station of Xianghuangqi of Xilinguole Inner Mongolia, Xianghuangqi 013250, China;
3.State-run Nursery of Xianghuangqi of Xilinguole Inner Mongolia, Xianghuangqi 013250, China

Online:2013-10-20 Published:2013-10-20

摘要/Abstract

摘要： 亚洲小车蝗是内蒙古草原主要优势种害虫,主要取食针茅、羊草等禾本科植物,植物种类对其生长发育影响可反映蝗虫群落与植物群落的关系。采用室内饲养与野外笼罩的方法,进行了不同生境亚洲小车蝗3个密度处理生活力指标定量分析,结果表明,针茅喂养的亚洲小车蝗雌虫相对生长率高于羊草。植物盖度和虫口密度是影响亚洲小车蝗生活力的主要因素。当针茅盖度<25%时,亚洲小车蝗生活力随盖度增加而缓慢增长,当针茅盖度>25%时, 生活力增长较快。当羊草盖度<25%时,亚洲小车蝗生活力随盖度增加而逐渐减小,当羊草盖度>25%时,生活力随盖度增加而增长,且在针茅样地的生活力高于羊草样地。当亚洲小车蝗密度<18头/m²时,生活力随密度增大而增大。在牧草布局时应合理调整针茅、羊草盖度,监测蝗虫密度,预防蝗虫爆发。以上结果为草场植被的合理布局提供了参考,同时也为减少亚洲小车蝗危害提供了依据。

Abstract: Oedaleus decorus asiaticus, mainly feeding on graminaceous, is one of most harmful grasshopper species in the Inner Mongolia.The effects of plant species on the growth and development of grasshopper reflect relationship between plant communities and grasshopper communities.In this study, by applying both the fields net and indoor independent feeding method, we compared the vitality index of three groups of O. asiaticus with different population densities, and quantitatively analyzed the effect of Stipa krylovii and Leymus chinensis on the growth and development of O. asiaticus. The result indicated that the relative growth rate of female which feed on S. krylovii is higher than which feed on L. chinensis. The plant coverage and the population density are main factors to affect the vitality of O. asiaticus. When the coverage of S. krylovii less than 25%, the vitality value increased slowly with the increase of coverage, when the coverage more than 25%, the vitality value increased rapidly. When the coverage of L. chinensis less than 25%, the vitality value decreased with the increase of coverage,when the coverage more than 25%, the vitality value positively related with the coverage. The vitality of O. asiaticus in S. krylovii is better than in L. chinensis. We also found that when density of grasshopper is less than 18 heads/m², the vitality value increases with the density. When we plant grass should adjust coverage of S. krylovii and L. chinensis, monitor density of O. asiaticus. The results provide an operational base for the rational distribution of grassland and harm reduction of grasshopper.

中图分类号:

S812.6

张未仲,贺兵,曹广春,张泽华,乌亚汗,刘世超,王海荣. 针茅及羊草对亚洲小车蝗生活力影响的定量分析[J]. 草业学报, 2013, 22(5): 302-309.

ZHANG Wei-zhong,HE Bing,CAO Guang-chun,ZHANG Ze-hua,WU Ya-han,LIU Shi-chao,WANG Hai-rong. Quantitative analysis of the effects of Stipa krylovii and Leymus chinensis on the factors of vitiality of Oedaleus decorus asiaticus[J]. Acta Prataculturae Sinica, 2013, 22(5): 302-309.

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针茅及羊草对亚洲小车蝗生活力影响的定量分析

Quantitative analysis of the effects of Stipa krylovii and Leymus chinensis on the factors of vitiality of Oedaleus decorus asiaticus

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