For example, agroforestry and perennial tree crops are long-term investments and individual farmers will only plant trees if they have secure land or tree property rights to secure future returns from their investment.
例如，农林业和多年生木本经济作物是长期投资，农民只有在拥有可靠（土地或树木）产权，投资今后的回报有保障的情况下，才会种植树木。