<p><Success style = "float: center; text-align: center; font-size:30px"><B>Ecosystem</B></Success></p> <p><Primary style = "float: center; text-align: center; font-size:26px"><B>Productivity</B></Primary></p> <hr> <main> <div style='float: left; width:100%; text-align: left;font-size:23px'> <ul> <li> <p>A constant input of solar energy is the basic requirement for any ecosystem to function and sustain</p> </li> <li> <p>Primary production is defined as the amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis</p> </li> </ul> </div> </main> <hr> <footer style= "font-size:18px">Introduction $\rarr$ Ecosystem–Structure and Function $\rarr$ <span style="color:blue">Productivity</span> $\rarr$ Decomposition $\rarr$ Energy Flow $\rarr$ Ecological Pyramids</footer>

<p><Success style = "float: center; text-align: center; font-size:30px"><B>Ecosystem</B></Success></p> <p><Primary style = "float: center; text-align: center; font-size:26px"><B>Productivity</B></Primary></p> <hr> <main> <div style='float: left; width:100%; text-align: left;font-size:23px'> <ul> <li> <p>It is expressed in terms of weight $(gm^{–2})$ or energy $(kcal$ $m^{–2})$</p> </li> <li> <p>The rate of biomass production is called productivity</p> </li> <li> <p>It is expressed in terms of $gm^{–2}$ $yr^{–1}$ or $(kcal$ $m^{–2})$ $yr^{–1}$ to compare the productivity of different ecosystems</p> </li> </ul> </div> </main> <hr> <footer style= "font-size:18px">Introduction $\rarr$ Ecosystem–Structure and Function $\rarr$ <span style="color:blue">Productivity</span> $\rarr$ Decomposition $\rarr$ Energy Flow $\rarr$ Ecological Pyramids</footer>

<p><Success style = "float: center; text-align: center; font-size:30px"><B>Ecosystem</B></Success></p> <p><Primary style = "float: center; text-align: center; font-size:26px"><B>Productivity</B></Primary></p> <hr> <main> <div style='float: left; width:100%; text-align: left;font-size:23px'> <ul> <li> <p>It can be divided into gross primary productivity (GPP) and net primary productivity (NPP)</p> </li> <li> <p>Gross primary productivity of an ecosystem is the rate of production of organic matter during photosynthesis</p> </li> <li> <p>A considerable amount of GPP is utilised by plants in respiration</p> </li> </ul> </div> </main> <hr> <footer style= "font-size:18px">Introduction $\rarr$ Ecosystem–Structure and Function $\rarr$ <span style="color:blue">Productivity</span> $\rarr$ Decomposition $\rarr$ Energy Flow $\rarr$ Ecological Pyramids</footer>

<p><Success style = "float: center; text-align: center; font-size:30px"><B>Ecosystem</B></Success></p> <p><Primary style = "float: center; text-align: center; font-size:26px"><B>Productivity</B></Primary></p> <hr> <main> <div style='float: left; width:100%; text-align: left;font-size:23px'> <ul> <li>Gross primary productivity minus respiration losses (R), is the net primary productivity (NPP)</li> </ul> <p>GPP – R = NPP</p> <ul> <li>Net primary productivity is the available biomass for the consumption to heterotrophs (herbiviores and decomposers)</li> </ul> </div> </main> <hr> <footer style= "font-size:18px">Introduction $\rarr$ Ecosystem–Structure and Function $\rarr$ <span style="color:blue">Productivity</span> $\rarr$ Decomposition $\rarr$ Energy Flow $\rarr$ Ecological Pyramids</footer>

<p><Success style = "float: center; text-align: center; font-size:30px"><B>Ecosystem</B></Success></p> <p><Primary style = "float: center; text-align: center; font-size:26px"><B>Productivity</B></Primary></p> <hr> <main> <div style='float: left; width:100%; text-align: left;font-size:23px'> <ul> <li> <p>Secondary productivity is defined as the rate of formation of new organic matter by consumers</p> </li> <li> <p>Primary productivity depends on the plant species inhabiting a particular area</p> </li> <li> <p>It also depends on a variety of environmental factors, availability of nutrients and photosynthetic capacity of plants</p> </li> </ul> </div> </main> <hr> <footer style= "font-size:18px">Introduction $\rarr$ Ecosystem–Structure and Function $\rarr$ <span style="color:blue">Productivity</span> $\rarr$ Decomposition $\rarr$ Energy Flow $\rarr$ Ecological Pyramids</footer>

<p><Success style = "float: center; text-align: center; font-size:30px"><B>Ecosystem</B></Success></p> <p><Primary style = "float: center; text-align: center; font-size:26px"><B>Productivity</B></Primary></p> <hr> <main> <div style='float: left; width:100%; text-align: left;font-size:23px'> <ul> <li> <p>Therefore, it varies in different types of ecosystems</p> </li> <li> <p>The annual net primary productivity of the whole biosphere is approximately 170 billion tons (dry weight) of organic matter</p> </li> </ul> </div> </main> <hr> <footer style= "font-size:18px">Introduction $\rarr$ Ecosystem–Structure and Function $\rarr$ <span style="color:blue">Productivity</span> $\rarr$ Decomposition $\rarr$ Energy Flow $\rarr$ Ecological Pyramids</footer>

<p><Success style = "float: center; text-align: center; font-size:30px"><B>Ecosystem</B></Success></p> <p><Primary style = "float: center; text-align: center; font-size:26px"><B>Productivity</B></Primary></p> <hr> <main> <div style='float: left; width:100%; text-align: left;font-size:23px'> <ul> <li> <p>Of this, despite occupying about 70 per cent of the surface, the productivity of the oceans are only 55 billion tons</p> </li> <li> <p>Rest of course, is on land</p> </li> <li> <p>Discuss the main reason for the low productivity of ocean with your teacher</p> </li> </ul> </div> </main> <hr> <footer style= "font-size:18px">Introduction $\rarr$ Ecosystem–Structure and Function $\rarr$ <span style="color:blue">Productivity</span> $\rarr$ Decomposition $\rarr$ Energy Flow $\rarr$ Ecological Pyramids</footer>