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Chris Robson's avatar

Look back to look forward. So often we use our familiar landscape as our baseline rather than the one that prevailed for 1000's of years. Aotearoa was 80% tree cover until 800 years ago. How do we get close to there?

Use reliable science to inform decisions on trees. In a switch from pasture to trees - of any sort:

We don't have major losses to ecosystems

We don't lose biodiversity when we replace plants that are cm tall with plants that are tens of metres tall; we create more habitat, especially for invertebrates, birds, fungi....

We increase soil quality; we change from compacted to permeable, with greater water-holding capacity and flood mitigation capability. All/any tree cover >2m tall will intercept and transpire more water than pasture cover, and it will smooth water yield curves - check Scion Dean Meason's work.

We reduce erosion potential by planting any tree types - read research from MWLR esp by Chris Phillips, Mike Marden et al.

All trees contain more fuel compared to pasture.

All ecosystems that lack diversity are more vulnerable to pests and pathogens.

a huge threat to all our forests are mammalian, particularly ungulate pests. Greater efforts to manage those are separately needed.

Maree Quinn's avatar

Trees. That is the only thing my thinking ( collapse aware) has led to and one that I am actively pursuing. Plant trees. Plant as many as possible and encourage others to do so. I chose not to have children, my legacy (to be so bold ) is to planet earth. To be a better guardian. Although I fear this is wishful thinking. What is going to grow and how will organic growth be affected when the planet sears past 2 degrees ( around 2030 they say) and burns into 3 + and beyond. If we could time travel to 2050, and be in the world of high temps, climate refugees, failed crops, broken economy, world wide death - what would those survivors wish they had done or put in place to ameliorate their life situation? My first thought was that your title should be ‘a bitter legacy’ but I am hoping for better. So Trees.

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