| 刈割对芨芨草生长的影响 |
| |
| 引用本文： | 王静,程积民,万惠娥,方锋. 刈割对芨芨草生长的影响[J]. 草业科学, 2005, 22(6): 58-61 |
| |
| 作者姓名： | 王静 程积民 万惠娥 方锋 |
| |
| 作者单位： | 中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,甘肃,兰州,730020;中国科学院水利部水土保持研究所,陕西,杨陵,712100;中国科学院水利部水土保持研究所,陕西,杨陵,712100;兰州中心气象台,甘肃,兰州,730020 |
| |
| 基金项目： | 科技部社会公益研究项目，中国气象局兰州干旱气象研究所基金 |
| |
| 摘 要： | 研究了刈割对芨芨草Achnatherum splendens生长状况及光合生理特征方面的影响,结果表明:刈割对芨芨草叶片生长、生物量积累及生理特征存在明显的影响.同试验前一年未刈割的芨芨草株丛相比,刈割过的芨芨草株丛各叶位叶片长度、叶面积均较小,单位叶面积的干质量也较少;营养枝及生殖枝的茎基粗分别减少了1.1%～5.5%,1.7%～13.5%;其总生物量、同化器官生物量及非同化器官生物量分别降低了7.9%,15.1%和1.3 %;在整个生育期刈割过的芨芨草株丛光合速率及蒸腾速率也较未刈割过的株丛减少了2.9%～29.5%,4.3%～23.6%.
|
| 关 键 词： | 芨芨草 刈割 生长 |
| 文章编号： | 1001-0629(2005)06-0058-04 |
The influence of cutting on Achnatherum splendens growth |
| |
| WANG Jing,CHENG Ji-Min,WAN Hui-er,FANG Feng. The influence of cutting on Achnatherum splendens growth[J]. Pratacultural Science, 2005, 22(6): 58-61 |
| |
| Authors: | WANG Jing CHENG Ji-Min WAN Hui-er FANG Feng |
| |
| Abstract: | The influence of cutting on the growth and photosynthetic characteristics was studied The results showed that cutting had distinct effect on leaf growth, biomass accumulation and photosynthesis Compared to non cutting treatment in last year, leaf length, leaf area and dry weight per unit leaf area were less, basal stem wide of nutrition and breeding branch reduced 1 1%~5 5%,1 7%~ 13 5% , respectively, and its total biomass, assimilation and non assimilation organ biomass decreased 7 9%,15 1%,1 3 % , respectively In addition, photosynthesis rate and transpiration rate reduced 2 9%~29 5%,4 3%~23 6% |
| |
| Keywords: | Achnatherum splendens cutting growth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
