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How long do suberin and sporopollenin persist in farm soils?
Measure how long tough plant polymers such as root suberin and pollen sporopollenin persist in farm soils, and whether they could store carbon.
PR
PR 把工作从一条路线带到另一条；合并它就是采纳。
没有开放的 PR
PR 把工作从一个分支带到另一个分支。