Exploration Log: Evaluating Young Arborvitae Trees Across Varying Elevations in Yiling District’s Forest Conservation Area
Sampling Approach
The focus of this study was to explore the influence of altitude on the variety and make-up of young trees, particularly arborvitae saplings. I targeted four distinct forest ecosystems at various altitudes, ranging from 200 meters to 1480 meters above sea level:
– Summit Chaparral and Scrub Zones (1100-1480 m)
– A Blend of Deciduous Broadleaf and Conifer Forests (800-1100 m)
– Mixed Evergreen and Broad-Leaved Deciduous Forests (400-800 m)
– Purely Broad-Leaved Evergreen Forests (200-400 m)
For each of these elevation categories, I established 2-3 stationary observation plots at intervals of 100 meters. In total, approximately 40 such plots across different elevations were observed. To enhance accuracy, each location was measured thrice, and geographical attributes were recorded using a handheld GPS device and an inclinometer.
Sample Volume
Each of the 40 plots served as an independent sample unit. The use of three readings per location aimed to enhance the reliability of the collected data, mitigating variables like wind or temporary changes in temperature.
Obstacles in Sample Design Execution
Fieldwork invariably poses challenges, and this study was no different. A particularly difficult aspect was adapting to fluctuating weather conditions at higher elevations. Inclement weather such as rain and sudden drops in temperature complicated logistical planning and made high-altitude sampling problematic. Additionally, the steep terrain at some sites made data collection physically strenuous.
Additional Observations and Preliminary Thoughts on Hypotheses
Interestingly, beyond the primary focus on arborvitae saplings, I observed that other plant species also exhibited similar distribution and abundance patterns. This led me to ponder whether the environmental factors influencing arborvitae might have broader ecosystemic implications.
The initial hypothesis posited that soil moisture levels would impact the diversity and number of young trees. Preliminary observations appear to support this theory. However, shifts in other types of vegetation indicate that factors such as soil nutrient levels, wind, and insect activities might also play a role. This offers a compelling angle for future research.
Upcoming Actions
Having concluded the data gathering stage, the subsequent step involves data interpretation and hypothesis validation. The critical question remains: Will the data affirm the anticipated correlation between tempurature and the diversity and abundance of saplings?
I am confused in this post and the last one you refer to temperature and I am not sure what your temperature measurements are? In this post you mention your initial hypothesis is related to soil moisture and seedling diversity. Remember your final paper should have one clear hypothesis and one clear prediction. It is ok to do more, but I find students do better when they keep their study with a focused set of variables related to one hypothesis.