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Full-Text Articles in Physical Sciences and Mathematics
Optimum Moisture Content And Maximum Dry Unit Weight For Compaction Of Interdisciplinary Science Center Soil, Rachel A. Lunstroth, Maria Camilla O'Toole, Melissa Simbler
Optimum Moisture Content And Maximum Dry Unit Weight For Compaction Of Interdisciplinary Science Center Soil, Rachel A. Lunstroth, Maria Camilla O'Toole, Melissa Simbler
2019 Symposium
Eastern Washington University’s is currently undergoing construction with the addition of the Interdisciplinary Science Center. A soil sample was collected from the construction site and over the course of Fall Quarter 2018 we performed a series of tests on this soil allowing us to classify the soil based on the Unified Soil Classification System. These tests include: a specific gravity determination test according to the American Society for Testing and Materials (ASTM) standard D854, a sieve and hydrometer analysis according to the ASTM standard D422, and an Atterberg limits test according to the ASTM standard D-4318. We also performed a …
Targeted Short-Term Nutrient Reduction To Manage Ventenata Dubia An Invasive Winter Annual Grass: Soil And Plant Responses, Jaren F. Lamm
Targeted Short-Term Nutrient Reduction To Manage Ventenata Dubia An Invasive Winter Annual Grass: Soil And Plant Responses, Jaren F. Lamm
EWU Masters Thesis Collection
Invasive winter annual grasses, IWAGs, have degraded extensive ecosystems around the world and continue to invade new ones yearly. IWAGs readily form large monocultures or near monocultures, thus management and restoration goals largely focus on maintaining or increasing plant diversity in impacted ecosystems. Unfortunately, common management methods also reduce native plant diversity and harm the soil microbiome. These effects require additional measures to be taken, like reseeding, and plant diversity is still usually well below remnant targets. Early season short-term nutrient reduction to manage IWAGs is largely unexplored and would potentially decrease IWAG abundance, active earlier than most plants, but …