Zhang Pei-Dong, Fang Chao, Liu Jie, Xu Qiang, Li Wen-Tao, Liu Yan-Shan
Fisheries College, Ocean University of China, Qingdao 266003, PR China.
Fisheries College, Ocean University of China, Qingdao 266003, PR China.
Mar Pollut Bull. 2015 Jun 15;95(1):89-99. doi: 10.1016/j.marpolbul.2015.04.036. Epub 2015 Apr 23.
We describe an innovative method of planting Zostera marina (eelgrass) seeds in which hessian bags filled with high-silted sediments are used as a seed protecting device. Here, we evaluated the effectiveness of the method through a field seed-sowing experiment over a three year period. The suitable seed planting density required by the seeds of Z. marina in this method was also investigated. In the spring following seed distribution, seedling establishment rate of Z. marina subjected to different seed densities of 200-500seedsbag(-1) ranged from 16% to 26%. New eelgrass patches from seed were fully developed and well maintained after 2-3years following distribution. The seed planting density of 400seedsbag(-1) may be the most suitable for the establishment of new eelgrass patches. Our results demonstrate that seed-based restoration can be an effective restoration tool and the technique presented should be considered for future large-scale Z. marina restoration projects.
我们描述了一种种植大叶藻种子的创新方法，其中用装满高含沙量沉积物的粗麻袋作为种子保护装置。在此，我们通过为期三年的田间播种实验评估了该方法的有效性。还研究了此方法中大叶藻种子所需的合适播种密度。在种子播撒后的春季，不同种子密度（200 - 500粒/袋）的大叶藻幼苗建立率在16%至26%之间。种子播撒2 - 3年后，新的由种子形成的大叶藻斑块充分发育并得到良好维持。400粒/袋的种子播种密度可能最适合新大叶藻斑块的形成。我们的结果表明，基于种子的恢复可以是一种有效的恢复工具，并且对于未来大规模的大叶藻恢复项目应考虑采用所提出的技术。
