Which statement correctly describes the relationship between leaf area, biomass generation, and the optical bands detected by sensors in crop productivity studies?*1 pointBoth leaf area and biomass have no direct relationship with light, so the sensor cannot be used to reliably estimate the leaf area or the biomass.The consumable part of biomass is more closely related to the red and NIR bands compared to the relationship between leaf area and the red and NIR bands, so the biomass at the end of the growing period can be more reliably estimated using a multispectral sensor.Leaf area intercepts light, facilitating biomass accumulation through photosynthesis, and leaf interaction with light is detected by optical bands.Biomass generation is less related to leaf area during the vegetative stage, so it is harder to estimate biomass during the vegetative stage than the reproductive stage using a sensor.

This paper presents empirical and theoretical analyses of spectral hemispherical reflectances and transmittances of individual leaves and the entire canopy sampled at two sites representative of equatorial rainforests and temperate coniferous forests. The empirical analysis indicates that some simple algebraic combinations of leaf and canopy spectral transmittances and reflectances eliminate their dependencies on wavelength through the specification of two canopy-specific wavelength-independent variables. These variables and leaf optical properties govern the energy conservation in vegetation canopies at any given wavelength of the solar spectrum. The presented theoretical development indicates these canopy-specific wavelength-independent variables characterize the capacity of the canopy to intercept and transmit solar radiation under two extreme situations, namely, when individual leaves 1) are completely absorptive and 2) totally reflect and/or transmit the incident radiation. The interactions of photons with the canopy at red and near-infrared (IR) spectral bands approximate these extreme situations well. One can treat the vegetation canopy as a dynamical system and the canopy spectral interception and transmission as dynamical variables. The system has two independent states: canopies with totally absorbing and totally scattering leaves. Intermediate states are a superposition of these pure states. Such an interpretation provides powerful means to accurately specify changes in canopy structure both from ground-based measurements and remotely sensed data. This concept underlies the operational algorithm of global leaf area index (LAI), and the fraction of photosynthetically active radiation absorbed by vegetation developed for the moderate resolution imaging spectroradiometer (MODIS) and multiangle imaging spectroradiometer (MISR) instruments of the Earth Observing System (EOS) Terra mission.

Healthy vegetation reflects energy in what parts of the electromagnetic spectrum?Green and RedGreen and Near-InfraredBlue and GreenBlue and Red

Healthy vegetation reflects energy in what parts of the electromagnetic spectrum?Green and RedBlue and GreenGreen and Near-InfraredBlue and Red

Suppose you are investigating the effects of infrared light on plant growth. After growing many plants and recording your measurements, you form the following : plants that are exposed to infrared light will grow larger and faster than plants in normal sunlight.

What are the two major factors determining the distribution of terrestrial biomes?temperature and lighttemperature and rainfalllight and rainfallplants and animalstemperature and plants