2024年6月21日
10月
12
2021
十年管道研究凸显土地复垦工作的成功
A research team led by a leading University of Alberta professor has published papers highlighting the success of land reclamation efforts after construction of the Keystone Pipeline following a 10-year research project on rare plant species along the 管道 corridor in southern Alberta.
在Keystone项目于2009年开始建设之前，TC Energy与Dr. M. 安妮Naeth, 阿尔伯塔大学土地复垦和恢复生态学教授, to establish a monitoring program along approximately 12 kilometres of the project’s corridor. Dr. Naeth and her graduate students conducted rare plant surveys each spring and assessed the soil and plant communities over a 10-year period – with the goal of understanding the impact of 管道s on the prairie landscape.
的 管道, which went into service in 2010, 安全 transports crude oil from Hardisty, Alberta, to U.S. 市场. 它穿过艾伯塔省干燥的混合草地, 细长的鼠耳衣和微小的隐毛虫的栖息地, 哪两种被联邦政府列为濒危物种的稀有植物.
詹妮弗·巴克
TC能源的专业生物学家和环境规划师
恢复景观
Research results showed that even sensitive arid habitat could recover within a short period of time – with native grasses and forbs (including wild flowers) returning – if the right mitigation measures and construction techniques are applied.
Dr. Naeth说, “的 minimal disturbance techniques used on these sections of the 管道 were effective at reducing impacts on soil and plant communities both on and off the right-of-way in dry mixed-grass prairie.”
在管道施工期间, 项目团队通过多种方法减少对土地的影响:
- 缩小走廊，尽量减少建筑占地面积
- 安装土工布、土坡和垫地以保护草皮层
- 在植物休眠的时候，在冰冻或深秋的条件下建造
- 在生长季节开始前更换表土, 因此，储存在表土中的种子有机会在同一季节重新生长
- Minimizing the crew size, number of vehicles and equipment to reduce unnecessary impact.
Jennifer说:“我们希望在景观上尽可能地轻触.”
研究学习
经过10年的研究, Jennifer says they’ve learned a lot about the ecology and population of the rare plants studied. 研究人员还获得了有关本土草原恢复的知识, 草原保护和管理的重点是什么.
“我们学到的东西只有在长期研究中才有可能. 例如，我们证实了细长的鼠耳衣是适应干扰的. In the past, this plant would have thrived with bison creating soil disturbances with their hooves. 野牛的消失使原草原发生了变化, therefore this plant is more rare – it makes sense that we found these plants growing right on the disturbed area of the trenchline just a few years after construction,詹妮弗说。.
研究学习 are being shared with the scientific community and within industry so that the minimal disturbance construction techniques and mitigation measures become a new best practice – ultimately reducing impacts to the landscape and increasing ecosystem resiliency.
细长的鼠耳芥是一种稀有植物，生长在阿尔伯塔省南部.
下一个步骤
现在，研究项目已经结束，TC能源正在与Dr. Naeth’s team on a new project to evaluate the effectiveness of our rare plant mitigations across different landscapes in Alberta and Britist Columbia, 比如湿地和北方森林.
詹妮弗·巴克
TC能源的专业生物学家和环境规划师.
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- Naeth, M.A., D.A. 成束的,年代.R. 威尔金森,CL. Bryk C.H. 低和M.R. Nannt. 2020. 管道及环境因素对濒危植物的影响; Halimolobos virgata 纳特(.) O.E. 在10年的时间里.
- Naeth, M.A., S.R. 威尔金森,D.A. 成束的,米.R. Nannt C.L. 布里克和C.H. 低. 2020. 管道影响与干混草草原土壤和植物群落恢复. 牧场生态与管理“，.
