|
|||||
|
|
| 放牧对草地生态系统服务和功能权衡关系的影响 | |
| 引用本文： | 汤永康,武艳涛,武魁,郭之伟,梁存柱,王敏杰,常佩静.放牧对草地生态系统服务和功能权衡关系的影响[J].植物生态学报,2019,43(5):408-417. |
| 作者姓名： | 汤永康 武艳涛 武魁 郭之伟 梁存柱 王敏杰 常佩静 |
| 作者单位： | 内蒙古大学生态与环境学院, 呼和浩特 010021 阿拉善盟气象局, 内蒙古阿拉善 750300 内蒙古自治区锡林浩特国家气候观象台, 内蒙古锡林浩特 026000 |
| 基金项目： | 国家重点研发计划(2016YFC0500503);内蒙古自治区科技计划(20140409) |
| 摘 要： | 内蒙古草原是我国北方的重要生态屏障和绿色畜牧业基地, 放牧是草原生态系统的主要利用和管理方式, 在放牧管理中充分发挥生态系统某一项或几项服务和功能最大利用价值时, 往往会与其他服务(功能)发生冲突, 需要权衡多项生态系统服务和功能, 制定合理的放牧管理制度。该研究以内蒙古锡林郭勒典型草原为例, 通过设置不放牧、轻度放牧、中度放牧以及重度放牧的放牧梯度, 从多项生态系统服务和功能权衡的角度比较了最适放牧管理强度。结果显示, 在放牧管理的草地生态系统服务和功能的权衡中, 权衡、协同、不相关关系同时存在, 如土壤呼吸速率与植物群落净生长量、生物多样性与植物群落净光合速率表现为权衡关系, 植物群落净生长量分别与土壤含水量、植物群落净光合速率及草地蒸散速率存在协同关系, 土壤有机碳含量与其他服务或功能间呈不相关关系; 放牧能不同程度地削弱多项生态系统服务及功能间的权衡关系(冲突对立关系); 中度放牧条件下的多项生态系统服务及功能的协同性最佳。 |
| 关 键 词： | 生态系统服务 生态系统功能 权衡分析 典型草原 放牧梯度 |
| 收稿时间： | 2020-08-09 |
Changes in trade-offs of grassland ecosystem services and functions under different grazing intensities |
|
| TANG Yong-Kang,WU Yan-Tao,WU Kui,GUO Zhi-Wei,LIANG Cun-Zhu,WANG Min-Jie,CHANG Pei-Jing.Changes in trade-offs of grassland ecosystem services and functions under different grazing intensities[J].Acta Phytoecologica Sinica,2019,43(5):408-417. | |
| Authors: | TANG Yong-Kang WU Yan-Tao WU Kui GUO Zhi-Wei LIANG Cun-Zhu WANG Min-Jie CHANG Pei-Jing |
| Affiliation: | Faculty of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China Alxa League Meteorological Bureau, Alxa, Nei Mongol 750300, China Xilinhot National Climate Observing Station, Xilinhot, Nei Mongol 026000, China |
| Abstract: | Aims The Nei Mongol Steppe plays an important role for livestock production, and it has been one of the green ecological shelters for Northern China. Enhancing some ecosystem services (provisioning services) in managing the ecosystems may causes reductions of other services, such as regulating and supporting services. The knowledge on how grazing intensity influence the trade-offs is lacking. Methods In order to find out the optimized grazing regimes, we conducted an experiment on a typical steppe in Xinlin Gol with four grazing intensities (no grazing, light grazing, moderate grazing and heavy grazing) in the Nei Mongol Steppe. Important findings Our results showed that: synergetic, trade-offs and no relationships among different ecosystem services existed in all treatments on the managed steppe system. The trade-offs relationship was found between soil respiration rate and net plant biomass growth, and between biodiversity and net photosynthetic rate. However the synergetic relationships were observed between net plant biomass growth and soil water content, between net plant growth biomass and net photosynthetic rate, and also between grassland evapotranspiration rate and biodiversity. The results indicated soil organic carbon was not related to other ecosystem services and functions. Grazing could weaken the conflicts among the ecosystem services. Moderate grazing intensity maximumize ecosystem services and functions. |
| Keywords: | ecosystem service ecosystem function trade-off analysis typical steppe grazing intensity |
| 点击此处可从《植物生态学报》浏览原始摘要信息 | |
| 点击此处可从《植物生态学报》下载免费的PDF全文 | |
