小农户生态系统恢复:中国退耕还林工程的经验教训(英)
聚焦小农户生态系统恢复:中国退耕还林工程的经验教训(英)。Conditionality: Payments were tied to tree survival — 50% was paid upfront, with the remainder released only if 70–85%of trees survived after one year. In practice, survival rate targets were somewhat relaxed, to account for heterogeneity in local contexts.