Why is leaf area important?
The Leaf Area Index is thus an important indicator of radiation and precipitation interception, energy conversion, and water balance. Ultimately, it is a reliable parameter for plant growth.
Why LAI is important?
Importance. The leaf area index (LAI) is an important parameter in plant ecology. Because it tells how much foliage there is, it is a measure of the photosynthetic active area, and at the same time of the area subjected to transpiration. It is also the area which becomes in contact with air pollutants.
What is the use of Planimeter?
A planimeter, also known as a platometer, is a measuring instrument used to determine the area of an arbitrary two-dimensional shape.
What does leaf area indicate?
The definition “half the total leaf area per unit horizontal ground surface area” is suitable for all kinds of leaves and flat or sloping surfaces. A leaf area index (LAI) expresses the leaf area per unit ground or trunk surface area of a plant and is commonly used as an indicator of the growth rate of a plant.
What are the 3 main functions of a leaf?
The leaves perform three main functions such as manufacture of food, interchange of gases between the atmosphere and the plant body and evaporation of water.
What is leaf area ratio?
Quick Reference. (LAR) The total leaf area of a plant divided by the dry mass of the entire plant. Typically measured in square centimetres per gram or square metres per kilogram, it indicates the efficiency with which a plant uses its leaves to produce plant material.
What is the range of LAI?
Clumping and spatial sampling For example, in row crops, LAI can range from 0 to 2-3 within a distance of 1 meter. Even in forests and other natural canopies, variable tree spacing, branching characteristics, and leaf arrangement on stems cause clumping.
What is LAI in remote sensing?
The ability to accurately and rapidly acquire leaf area index (LAI) is an indispensable component of process-based ecological research facilitating the understanding of gas-vegetation exchange phenomenon at an array of spatial scales from the leaf to the landscape.
How is the measurement of leaf area done?
Direct measurement of leaf area is slow and laborious. It may require detachment of leaves from the plants and/or utilization of expensive area meters, which makes the process costly and discourages full utilization of leaf area data in applied agronomic research. To speed up the process of determining leaf area, methods
What are the functions of the liver in the body?
The liver processes this blood and breaks down, balances, and creates the nutrients and also metabolizes drugs into forms that are easier to use for the rest of the body or that are nontoxic. More than 500 vital functions have been identified with the liver.
Which is better to measure the size of the liver?
Repeated studies have shown that percussion of the liver is superior to the palpatory measurement of liver span below the right costal margin in the estimation of hepatic enlargement. Although palpation and percussion are the most commonly used clinical methods for determining liver size]
How are the ligaments in the liver important?
This article will discuss the different liver ligaments and their clinical significance. The liver has crucial homeostatic functions and it is the largest accessory digestive organ within the peritoneal space. It consists of four lobes and two major surfaces.