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Explain function Max_Rootdepth #176

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Jun 17, 2024
Merged

Explain function Max_Rootdepth #176

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Explain function Max_Rootdepth
May 24, 2023
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Merge branch 'main' into fix_issue164
Crystal-szj Jun 17, 2024
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Crystal-szj Jun 17, 2024
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Crystal-szj Jun 17, 2024
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23 changes: 10 additions & 13 deletions src/Max_Rootdepth.m
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Original file line number Diff line number Diff line change
@@ -1,28 +1,25 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Subfunction - Root - Depth %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% REFERENCES
function [bbx] = Max_Rootdepth(bbx)

%{
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The function identify if there is root in certain layer, bbx=0 indicates no
roots while bbx=1 indicates roots existing
%}

% get model settings
ModelSettings = io.getModelSettings();

% BR = 10:1:650; %% [gC /m^2 PFT]
% rroot = 0.5*1e-3 ; % 3.3*1e-4 ;%% [0.5-6 *10^-3] [m] root radius
%%% OUTPUTS
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%% Root lenth distribution %%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
R_depth = ModelSettings.R_depth;

R_depth = ModelSettings.R_depth; % User-defined for different PFTs: maximum rooting depth [cm]
Tot_Depth = ModelSettings.Tot_Depth;
DeltZ = ModelSettings.DeltZ;
Elmn_Lnth = 0;
Elmn_Lnth = 0; % Rooting depth of each layer
for ML = 1:ModelSettings.NL
Elmn_Lnth = Elmn_Lnth + DeltZ(ML);
if Elmn_Lnth < Tot_Depth - R_depth
bbx(ML) = 0;
elseif Elmn_Lnth >= Tot_Depth - R_depth && Elmn_Lnth <= Tot_Depth - 5
bbx(ML) = 0; % bbx = indicate if there is root exist in this layer
elseif Elmn_Lnth >= Tot_Depth - R_depth && Elmn_Lnth <= Tot_Depth - 5 % 5 is the depths of shallow roots (user-defined)
bbx(ML) = 1;
else
bbx(ML) = 0;
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