|
|||||
|
|
| 高原鼠兔对退化草地人工植被稳定性的影响 | |
| 引用本文： | 潘多锋,马玉寿,张德罡,施建军,邱正强.高原鼠兔对退化草地人工植被稳定性的影响[J].草原与草坪,2006(5):49-51. |
| 作者姓名： | 潘多锋 马玉寿 张德罡 施建军 邱正强 |
| 作者单位： | 1. 甘肃农业大学草业学院,甘肃,兰州,730070 2. 甘肃农业大学草业学院,甘肃,兰州,730070;青海省畜牧兽医科学院,青海,西宁,810016 3. 青海省畜牧兽医科学院,青海,西宁,810016 |
| 摘 要： | 对高原鼠兔活动在“黑土型”退化草地上建植的人工草地上用堵洞法进行了调查研究,结果表明:当高原鼠兔的有效洞口密度达到60个/hm2时,人工草地优良牧草的地上植物量只有未危害草地的12%,牧草高度、盖度、密度均有大幅度下降;当达到80个/hm2时,优良牧草的地上植物量只有未危害草地的4%,牧草高度、盖度、密度进一步下降,人工草地开始向建植前的“黑土滩”演替。高原鼠兔通过对人工草地种群特征、物种多样性、土壤结构等方面的影响,来制约人工群落的稳定性与可持续发展。 |
| 关 键 词： | 高原鼠兔 退化草地 人工植被 |
| 文章编号： | 1009-5500(2006)05-0049-03 |
| 修稿时间： | 2005年12月5日 |
Study on the effect of plateau pika on the stability of artificial grassland established on the degraded rangeland on Qinghai-Tibet Plateau |
|
| PAN Duo-feng,MA Yu-shou,ZHANG De-gang,SHI Jian-jun,QIOU Zheng-qiang.Study on the effect of plateau pika on the stability of artificial grassland established on the degraded rangeland on Qinghai-Tibet Plateau[J].Grassland and Turf,2006(5):49-51. | |
| Authors: | PAN Duo-feng MA Yu-shou ZHANG De-gang SHI Jian-jun QIOU Zheng-qiang |
| Abstract: | Study on the effect of plateau pika on the stability of artificial grassland established on degraded "black soil type"degrade grassland on Qinghai-Tibet Plateau was carried out and the results showed that the aboveground phytomass of high quality grass of artificial grassland damaged by pika was only 12% of non-damaged grassland while the burrow density increased to 60 per hectare and the height,coverage and density significantly decreased.While it reached to 80 per hectare,the aboveground phytomass was only 4% of non-damaged grassland.Meanwhile,the artificial grassland began to success to "black soil type"degraded grassland.By influencing the community structure,plant diversity and soil structure,the pika restrain artificial grassland stability and sustainable development. |
| Keywords: | plateau pika "black soil type"degrade grassland artificial grassland |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |