Answer
(a) One input of this system is wheat seeds. The other input of this system is fertilizers. One output of this system is wheat. The other output is excess nutrients.
(b) One positive feedback loop is that farmers must add fertilizers to replace lost nutrients. Fertilizers are essential for wheat growth, but they can cause run off and excess nutrients that contribute to the problem of wheat health.
(c) One adaptive management strategy could be employed could be to attempt drip irrigation. Another adaptive management strategy could be to implement surface irrigation.
(d) 0.09 hectares
Work Step by Step
(a) inputs: seeds, fertilizers outputs: wheat grown from seeds, nutrients from fertilizer runoff
(b) positive feedback is when one negative outcome spurs the continuation of the negative input.
(c) adaptive management strategies are strategies employed to address environmental changes
(d) see attached
