The Hubbard Brook Ecosystem Study

Hubbard Brooke Ecosystem Research Word Count (Excluding References) 1492 Introduction Hubbard Brooke's research in New Hampshire is undertaken in broadleaf forests north of deciduous trees and participates in important environmental studies to improve the global ecosystem . There are several inputs (light, precipitation, chemicals) and power (water and nutrients) used to discover how fully integrated ecosystems work. (Bormann and Likens 1979). Long-term studies have been carried out since short-term observations show a false trend of data that was not achieved at the time of the study.

The Hubbard Brook ecological study began in 1963 and studied White Mountain in New Hampshire. This is the first successful attempt to study the entire watershed as an ecosystem. In this study, we used flow chemistry as a means of monitoring the characteristics of ecosystems and developed a detailed biogeochemistry model of the ecosystem. Long-term research at that location led to the discovery of acid rain in North America in 1972. Researchers record the consumption of soil cations (especially calcium) in the coming decades

• Scientists compared the loss of water and nutrients from the unprocessed forest ecosystem (controlled area) of the Hubbardbrook experimental forest in New Hampshire to the tree harvested from the experimental area. First, researchers measured the amount of water and dissolved phytonutrients entering and leaving forested areas (controlled areas) that were not disturbed. They discovered that undisturbed mature forests are highly effective in saving water and maintaining chemical nutrients in the soil. After that scientists set up experimental forest areas; they cut down all the trees and shrubs in the valley (experimental area) and sprayed herbicides in that area to prevent regeneration. They compare the influx and runoff of water and nutrients from the experimental site with the inflow and outflow of the control ground for 3 years. Any plant can not help absorbing and retaining water, and the amount of water flowing out of the forest to reduce valleys increases by 30-40%.

Please look at the graph below. This shows the calcium loss of the experimental cleavage site of the Hubbard Brook experimental forest compared with the control site. This is very similar to Figure 2-6 comparing the nitrate loss at two points. After learning this table, please answer the following questions. Soil is a complex mixture of eroded rock, mineral nutrients, water, air, rotting organisms, and billions of organisms. It covers most of the earth and provides nutrients for plant growth. Soil is formed by decomposition of rocks, surface waste and decomposition of organic matter. Bacteria and other degrading microorganisms decompose organic compounds in one soil into simpler inorganic compounds.