0
What else can I help you with?
What light intensity would their be no net productivity?
The compensation point is the light intensity at which the rate of photosynthesis exactly matches the rate of respiration, resulting in zero net productivity. Below this threshold, the plant consumes more energy through respiration than it is able to produce through photosynthesis, leading to no net gain in biomass.
What is meant by the light compensation point?
The light compensation point is the light intensity at which the rate of photosynthesis equals the rate of respiration in plants. At this point, there is no net production or consumption of oxygen and carbon dioxide. It represents the threshold at which plants do not gain or lose energy due to light availability.
What is Effect of light on NPP?
Light is necessary for photosynthesis, a process where plants use light energy to convert carbon dioxide and water into glucose, their main energy source. More light generally leads to higher net primary productivity (NPP) as it increases the rate of photosynthesis. However, excessive light can damage plants and reduce NPP due to photoinhibition and oxidative stress.
What is the electric field intensity at the mid point of dipole?
The electric field intensity at the midpoint of a dipole is zero. This is because the electric fields created by the positive and negative charges of the dipole cancel each other out at that point, resulting in a net electric field intensity of zero.
WHAT IS NET DENSITY?
Net density refers to the number of housing units or population within a specific area of land. It is calculated by dividing the number of housing units or people by the total land area. Net density is used to evaluate the intensity of land use and can impact infrastructure planning and transportation system design.
What light intensity would their be no net productivity?
The compensation point is the light intensity at which the rate of photosynthesis exactly matches the rate of respiration, resulting in zero net productivity. Below this threshold, the plant consumes more energy through respiration than it is able to produce through photosynthesis, leading to no net gain in biomass.
What has an immediate effect on net primary productivity?
Factors such as light availability, temperature, nutrient availability, and water availability have an immediate effect on net primary productivity. Any changes in these factors can directly impact the rate at which plants can photosynthesize and grow, thus affecting NPP.
How does light intensity affect the rate of respiration?
Higher light intensity usually increases the rate of photosynthesis, which in turn can lead to higher levels of oxygen being produced. This can stimulate cellular respiration in some organisms as they use oxygen to generate energy. However, excessive light intensity can also damage cells and reduce respiratory activity.
What is the difference between net primary productivity and primary productivity?
primary productivity is defined as the amount of . organic matter produced per unit area over a time period by plant during photosynthesis. and gross primary productivity minus respiration losses is the net primary productivity .
How are gross and net primary productivity of a community related?
Gross primary productivity is the total amount of energy captured by producers through photosynthesis, while net primary productivity is the amount of energy left after subtracting energy used for respiration. Net primary productivity is thus derived from gross primary productivity, as it represents the energy available to consumers in the community after accounting for producers' own energy needs.
Why do warmer and wetter biomes have higher net productivity?
Warmer and wetter biomes have higher net productivity because these conditions provide more sunlight, warmth, and water for photosynthesis to occur. This allows plants to grow more efficiently and produce more biomass, leading to higher net productivity in these environments.
What is Lowest net primary productivity?
The lowest net primary productivity usually occurs in extreme environments such as deserts, polar regions, and deep ocean gyres where there is limited access to sunlight, water, and nutrients for photosynthesis. These areas have low plant growth and biomass production, resulting in low net primary productivity.
What is the gross primary productivity minus the respiration rate of producers?
net
What is meant by the light compensation point?
The light compensation point is the light intensity at which the rate of photosynthesis equals the rate of respiration in plants. At this point, there is no net production or consumption of oxygen and carbon dioxide. It represents the threshold at which plants do not gain or lose energy due to light availability.
How species diversity affect net primary productivity?
Greater species diversity can have a positive effect on net primary productivity as it enhances resource utilization and reduces competition for resources among species. Different species can fill different niches and maximize overall productivity in an ecosystem. However, too much diversity can also lead to decreased productivity if it disrupts established ecological relationships.
Cropping pattern and intensity how to calculate intensity?
cropping intensity is calculated as annual cropped area (sum of area under all crops in a year)/net land area * 100 like; a farmer having net cultivable land of 5 hectares has cropped, paddy in 5 hectares, wheat in 4 hectares, mung bean in 1.5 hectares in a year. then the cropping intensity will be; Croping Intensity=the total cropped area(5+4+1.5)/ net land area (5)*100=210%
Net primary productivity is greatest on land?
The oxygen in the atmosphere is primarily derived from plant respiration
