Search results
Results from the WOW.Com Content Network
Gross primary production (GPP) is the amount of chemical energy, typically expressed as carbon biomass, that primary producers create in a given length of time.Some fraction of this fixed energy is used by primary producers for cellular respiration and maintenance of existing tissues (i.e., "growth respiration" and "maintenance respiration").
The primary sector of the economy includes any industry involved in the extraction and production of raw materials, such as farming, logging, fishing, forestry and mining. [ 1 ] [ 2 ] [ 3 ] The primary sector tends to make up a larger portion of the economy in developing countries than it does in developed countries .
Net primary production measures the organic molecules by primary producers. Net primary production also measures the amount of carbon assimilated into organic molecules by primary producers, but does not include organic molecules that are then broken down again by these organism for biological processes such as cellular respiration. [5] The ...
In the year before the ecosystem restoration Decade commences, there is a critical knowledge deficit inhibiting an appreciation of the complexity of coastal ecosystems that hampers the development of responses to mitigate continuing impacts—not to mention uncertainty on projected losses of coastal systems for some of the worst-case future ...
Fate of mangrove primary production. A producer is any organism that performs photosynthesis. [9] Producers are important because they convert energy from the sun into a storable and usable chemical form of energy, glucose, [1] as well as oxygen. The producers themselves can use the energy stored in glucose to perform cellular respiration.
The ecological efficiency of an ecosystem is as a result often no better than an approximation. On the other hand, an approximation may be enough for most ecosystems, where it is important not to get an exact measure of efficiency, but rather a general idea of how energy is moving through its trophic levels.
Trade can be a key factor in economic development. The prudent use of trade can boost a country's development and create absolute gains for the trading partners involved. Trade has been touted as an important tool in the path to development by prominent economists.
Ecosystem ecology is philosophically and historically rooted in terrestrial ecology. The ecosystem concept has evolved rapidly during the last 100 years with important ideas developed by Frederic Clements, a botanist who argued for specific definitions of ecosystems and that physiological processes were responsible for their development and persistence. [2]