Distribution and Composition of the Seed Bank at the Kellogg Biological Station, Hickory Corners, MI (1990 to 2008)

The distribution and composition of the weed seed bank in treatments 1-7 of the LTER main site is periodically (every 3-6 years) evaluated using elutriation and seed counting methods. The goal is to determine: how well the seed bank predicts weed abundances and composition in subsequent years, and how changes in disturbance (tillage) and plant species (cropping systems) affect the bank. Composite soil samples to two depths are periodically elutriated to determine seed densities, species composition, and viabilities of seven target species which are dominant on the site.
original data source http://lter.kbs.msu.edu/datasets/9 Resources in this dataset:Resource Title: Website Pointer to html file. File Name: Web Page, url: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-kbs&identifier=6 Webpage with information and links to data files for download

本数据集于LTER主站点处理1-7期间，定期（每3-6年）采用离心分离和种子计数方法，对杂草种子库的分布与组成进行评估。研究旨在探究种子库对未来年份杂草丰度和组成的预测能力，以及扰动（耕作）和植物物种（作物系统）的变化对种子库的影响。每隔一定周期，对土壤样品进行两次深度的离心分离，以确定种子密度、物种组成及七种目标物种的存活率，这些物种在研究区域占主导地位。

原始数据来源：http://lter.kbs.msu.edu/datasets/9
数据集资源：
资源标题：指向HTML文件的网站指针。
文件名：网页，网址：https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-kbs&identifier=6
包含信息及数据文件下载链接的网页。