Questions tagged [vegetation]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
2
votes
0answers
36 views

Importance of soil adjusted vegetation indices for indoor use

I've been doing research on vegetation indices to try and prepare for my indoor plant analysis project. I have a question about soil adjustments, specifically soil line based indices like PVI. Is ...
2
votes
1answer
32 views

Does anyone know a book/article/research that talks about forest fire prevention?

In my college we have to start our thesis in the third semester, so I'm going to do a research about forest fire and its prevention. However, I'm struggling to find a article that talks about that ...
10
votes
3answers
402 views

Natural spiral pattern of grass - what could cause this?

During a nature walk inside an old abandoned quarry I stumbled upon strange spirals that appear to be naturally formed. What could cause this spiral formation? Is it a known phenomena? To clarify , ...
2
votes
0answers
25 views

In search of California ecosystem vegetation field guide

I am searching for an illustrated naturalist handbook to coastal California vegetation (trees, shrubs, wildflowers) organized by ecosystem. For example, there might be sections for coastal dunes (...
1
vote
1answer
88 views

How to get single value of NDVI value from four different directions?

I have a data set which contains NDVI (Normalized Difference Vegetation Index) values of four directions (NE, NW, SE, SW). Now, I would like to have single value which considers all 4 directions. Is ...
9
votes
0answers
76 views

What field studies have developed or supported the Penman-Monteith equations for estimating evapotranspiration?

I'm trying to understand transpiration estimation methods. The FAO recommends a standard Penman-Monteith methodology for modeling evapotranspiration based on meteorological and vegetation parameters (...
1
vote
0answers
26 views

Can anyone give share reference for quadrat size in vegetation

In sampling vegetation, what is the size of a quadrat needed? And I need a reference too plz. If the type matters, pick any vegetation all I need is an example of crops and the quadrat size. With ...
3
votes
1answer
75 views

GIMMS NDVI3g grid cells not entirely square-shaped?

The official data description of the recently updated GIMMS NDVI3g record describes the grid parameters of the dataset as follows. ...
8
votes
1answer
93 views

What is the error in bathymetric observations in the presence of vegetation?

How can we determine the error associated with bathymetric measurements when we survey over submerged vegetation? Let's say we are using single-beam echo-sounder over a patch of Posidonia, what are ...
2
votes
0answers
124 views

vegetation types and their required or suitable climate condition

I am doing a variability analysis for landcover in Western Ghats region. I have various vegetation classes such as: evergreen (needle leaf, broad leaf), decidious (needle leaf, broad leaf), ...