Pergunta 8 1 pts Why might spectral response patterns for a forested landscape d
ID: 115973 • Letter: P
Question
Pergunta 8 1 pts Why might spectral response patterns for a forested landscape differ for land cover depending on the seasons? (Keep in mind chlorophyll absorbs blue and red wavelengths to supply energy for photosynthesis while it reflects green wavelengths.) o In Spring and Summerthe leaves on the trees lead to a higher reflectance patters across green wavelengths while in Fall and Winter there is less chlorophyll in the landscape and reflectance of green wavelengths goes down. o Reflectance is constantThere is no change in spectral response patterns throughout seasons. In Fall and winter, the absence of leaves on the trees lead to a higher reflectance patters across green wavelengths while in Spring and summer reflectance of green wavelengths goes down o In Spring and Summerthe leaves on the trees lead to a higher reflectance patters across red and blue wavelengths while in Fall and Winter there is less chlorophyll in the landscape and reflectance of red and blue wavelengths goes down.Explanation / Answer
8. Why might spectral response patterns for a forested landscape differ for land cover depending on the seasons?
Answer: A. In spring and summer the leaves on the trees lead to a higher reflectance patterns across GREEN wavelengths while in fall and winter there is less chlorophyll in the landscape and reflectance of green wavelengths go down.
Explanation: The leaves usually contain several pigments, but of all those chlorophyll is the most abundant during the growing season. Throughout the growing season leaves appear green because of pigment chlorophyll, which is found in little disc like structures called chloroplasts. Also interestingly chlorophyll molecules absorb red and blue wavelengths and thus green wavelengths are reflected back to our eyes.