| 草原蝗虫为害对高寒草原生物量影响的研究 |
| |
| 引用本文： | 王俊梅,豆卫,冯今,马隆喜,曹国顺.草原蝗虫为害对高寒草原生物量影响的研究[J].草原与草坪,2010,30(5):59-62. |
| |
| 作者姓名： | 王俊梅 豆卫 冯今 马隆喜 曹国顺 |
| |
| 作者单位： | 1. 甘肃省草原技术推广总站,甘肃,兰州,730010
2. 夏河县草原站,甘肃,夏河,747100 |
| |
| 基金项目： | 甘肃省退牧还草科技支撑项目(甘退牧科技200302)资助 |
| |
| 摘 要： | 试验以2004年为对照处理,发生蝗虫为害的2005、为害后的2006、2007年为试验处理,测定草原蝗虫为害对高寒草原生物量的影响。试验结果为:狭翅雏蝗(Chorthippus dubius)、白纹雏蝗(Chorthippus albonemus)、小翅雏蝗(Chorthippus fallax)等蝗虫对高寒草原植被生物量有严重影响,为害后的3年中,生物量总体降低;蝗虫为害当年,生物量减少125.67 g/m2,减少量占正常年份的33.87%,蝗害后第2年,生物量减少199.83 g/m2,减少量占正常年份的53.86%,蝗害后第3年,生物量有所增加,但与蝗害前相比仍有下降,生物量减少100.33 g/m2,减少量占正常年份的27.04%;禾本科受蝗虫为害影响最严重,与受害前比较,差异达1%水准;毒杂草生物量稍有上升,到2007年时达最高,分别增加12,9 g/m2,比蝗虫为害前增加了47.37%1、3.92%,但差异不显著。
|
| 关 键 词： | 蝗虫 高寒草原 为害 |
Effect of prairie locust on plant biomass in alpine grassland |
| |
| WANG Jun-mei,DOU Wei,FENG Jin,MA Long-xi,CAO Guo-shun.Effect of prairie locust on plant biomass in alpine grassland[J].Grassland and Turf,2010,30(5):59-62. |
| |
| Authors: | WANG Jun-mei DOU Wei FENG Jin MA Long-xi CAO Guo-shun |
| |
| Institution: | WANG Jun-mei1,DOU Wei1,FENG Jin1,MA Long-xi2,CAO Guo-shun2(1.Gansu General Grassl, station,lanzhou 730010,2.Xiahe County Grassl, Station Gannan 734500) |
| |
| Abstract: | Effect of prairie locust on plant biomass in alpine grassland were tesed in 2005～2007.The results showed that Chorthippus dubius,Chorthippus albonemus and Chorthippus fallax had serious influence on plant biomass of alpine grassland.Plant biomass redued 125.67 g/m2,199.83 g/m2 and 100.33 g/m2 in the damaged year and after one and two damaging years respectively,which accounts for the total biomass of the year 33.87%,53.86% 27.04% respectively.Gramineae was damaged more seriouslythan others.Biomass of poisonous plant and weed has the rise slightly. |
| |
| Keywords: | locust alpine grassland damaging |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
