Four were healthy forest sites, four were shrubland areas, of the sort that are often created when people chop down forests, and four were shrubland areas that were turning into forest again.
四个是健康的森林地点, 四个是灌木丛地区,人们砍伐森林时经常会形成这种灌木丛地区, 四个是重新变成森林的灌木丛地区。