Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, Sweden.
Stockholm Environment Institute (SEI), Stockholm, Sweden.
Science. 2022 Sep 9;377(6611):eabm9267. doi: 10.1126/science.abm9267.
Tropical deforestation continues at alarming rates with profound impacts on ecosystems, climate, and livelihoods, prompting renewed commitments to halt its continuation. Although it is well established that agriculture is a dominant driver of deforestation, rates and mechanisms remain disputed and often lack a clear evidence base. We synthesize the best available pantropical evidence to provide clarity on how agriculture drives deforestation. Although most (90 to 99%) deforestation across the tropics 2011 to 2015 was driven by agriculture, only 45 to 65% of deforested land became productive agriculture within a few years. Therefore, ending deforestation likely requires combining measures to create deforestation-free supply chains with landscape governance interventions. We highlight key remaining evidence gaps including deforestation trends, commodity-specific land-use dynamics, and data from tropical dry forests and forests across Africa.
热带森林以惊人的速度持续减少,对生态系统、气候和生计造成了深远影响,促使人们再次承诺停止其继续减少。尽管农业是森林砍伐的主要驱动因素已得到充分证实,但减少的速度和机制仍存在争议,而且往往缺乏明确的证据基础。我们综合了最佳的泛热带证据,以阐明农业如何驱动森林砍伐。尽管 2011 年至 2015 年热带地区的森林砍伐中,有 90%至 99%是由农业驱动的,但只有 45%至 65%的砍伐土地在几年内变成了具有生产力的农业用地。因此,要想停止森林砍伐,可能需要将措施结合起来,既要建立无森林砍伐的供应链,也要进行景观治理干预。我们强调了关键的剩余证据差距,包括森林砍伐趋势、特定商品的土地利用动态以及来自热带干旱森林和非洲各地森林的数据。