| 不同功能群及先锋种在高寒人工草地建植初期的作用 |
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| 引用本文： | 李兰平,张慧敏,李宏林,梁德飞,武学霞,李希来.不同功能群及先锋种在高寒人工草地建植初期的作用[J].草地学报,2021,29(7):1513-1521. |
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| 作者姓名： | 李兰平 张慧敏 李宏林 梁德飞 武学霞 李希来 |
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| 作者单位： | 1. 青海师范大学青海省自然地理与环境过程重点实验室, 青海 西宁 810016;2. 青海大学省部共建三江源生态与高原农牧业国家重点实验室, 青海 西宁 810016;3. 青海大学农牧学院, 青海 西宁 810016 |
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| 基金项目： | 国家重点研发计划项目（2017YFC0504803）；青海省科学技术厅项目（2020-ZJ-744）；国家自然科学基金项目（31960339）；青海大学省部共建三江源生态与高原农牧业国家重点实验室自主课题（2016-ZZ-04）；青海省自然地理与环境过程重点实验室开放课题（2018-QZH-K06）共同资助 |
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| 摘 要： | 本研究通过2018年和2019年2年不同物种数量（1，3，6，9，12，15）组合混播试验，分析禾本科、豆科、杂类草和先锋种植物对高寒人工草地植物群落性状的影响，研究不同功能群及先锋种植物在高寒人工草地建植初期的作用，以期为高寒人工草地建设中不同功能群及先锋种植物的选择提供一定的依据。结果表明：禾本科植物能大幅增加人工草地植物群落地上生物量、盖度、高度和减少非播种物种数（P<0.05），杂类草则会大幅降低人工草地植物群落地上生物量、盖度和高度（P<0.05），但能增加非播种物种数（P<0.05）；豆科与先锋种植物对群落地上生物量、盖度、高度和非播种物种数影响较小或无影响。因此在建设以生产目的为主的高寒人工草地时，应优先选择禾本科植物；主要考虑草地多功能性时，可选择禾本科植物和杂类草植物组合。
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| 关 键 词： | 人工草地 功能群 先锋种 黄河源区 种子播种量 |
| 收稿时间： | 2020-12-10 |
The Effects of Different Functional Groups and Pioneer Species on the Early Establishment of Alpine Artificial Grassland |
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| LI Lan-ping,ZHANG Hui-min,LI Hong-lin,LIANG De-fei,WU Xue-xia,LI Xi-lai.The Effects of Different Functional Groups and Pioneer Species on the Early Establishment of Alpine Artificial Grassland[J].Acta Agrestia Sinica,2021,29(7):1513-1521. |
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| Authors: | LI Lan-ping ZHANG Hui-min LI Hong-lin LIANG De-fei WU Xue-xia LI Xi-lai |
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| Institution: | 1. Qinghai Province Key Laboratory of Physical Geography and Environmental Process, Qinghai Normal University, Xining, Qinghai Province 810016, China;2. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, China;3. College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, China |
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| Abstract: | In this study,the roles of different functional groups and pioneer species on the early establishment of alpine artificial grassland were studied through a mixed sowing experiment of different species number combinations (1,3,6,9,12,15) and analysis of the influence of gramineae,forbs,legumes and pioneer species on community traits for the year of 2018 and 2019. This study was aimed to provide some guidance for the selection of different functional groups and pioneer species in the construction of alpine artificial grassland. The results showed that gramineae could significantly increase the aboveground biomass,coverage and height of plant communities in artificial grassland and reduce the number of non-seeded species (P<0.05),while forbs could significantly decrease the aboveground biomass,coverage and height of plant communities (P < 0.05),but increase the number of non-seeded species (P < 0.05). Legumes and pioneer species had little or no influence on aboveground biomass,coverage,height and number of non-seeded species. Therefore,gramineae should be preferred in the construction of alpine artificial grassland for production purposes. When the major concern is on the multifunctionality of artificial grassland,combinations of gramineae and forbs can be selected. |
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| Keywords: | Artificial grassland Functional group Pioneer species Source region of the Yellow River Seed sown weight |
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