I'm looking at the potential transfer of contaminants (nutrients, salts, metals, etc.) via irrigation to agroecosystems. More specifically, I aim to study the threat posed by these contaminants on soil health using nematodes as bioindicators.

However, I'm faced with a few challenges. I aim to use historical water quality data and limited soil profiles to identify contaminants that might pose a threat, as well as regions along the river facing the highest risk. Is there a model that can be used to accurately predict this? Thus, I need to identify a method for predicting soil contaminant levels as a result of irrigation water input. I imagine different models would need to be used for different contaminants?

We will use species sensitivity graphs to predict toxicity of soils after which predictions will be validated with field tests.

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