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杨树团状栽培模式是根据我国杨树主要产区——平原农区的社会经济和自然条件提出的一种创新的农林复合经营模式。它尽量缩小杨树的占地面积,由100%缩减到5%~10%,减少杨树与农作物的接触和相互竞争,以农为主,使杨树对农作物的副作用降到最低,保证农作物高产。另一方面,杨树团具备了农田这样好的立地条件,能够长期分享农业对水、肥和土壤耕作的投入,杨树的优质、高产也能得到保证。有助于解决立地不合格、粗放经营和密度过大,这些长期困扰杨树发展的问题。与传统的行状造林方式比较,团状杨树栽培利多弊少,对农业影响小,农林长期和谐,达到双赢。在我国平原农区土地资源紧缺的条件下,在国家木材供不应求的情况下,杨树团状栽培模式对发展杨树有重要实用价值。
Poplar clump cultivation mode is an innovative agroforestry management mode proposed based on the socio-economic and natural conditions of the main producing areas of poplar in China. It minimizes the poplar area from 100% to 5% ~ 10%, reduces poplar contact with crops and competes with each other, with agriculture as the mainstay, minimizes the side effects of poplar on crops and ensures that crops high yield. On the other hand, the Yangshu Tuan has such good site conditions for farmland that it can long-term share agricultural inputs for water, fertilizer and soil cultivation. The poplar’s high quality and high yield can also be guaranteed. Help to solve the problem of unqualified sites, extensive operations and excessive density, which have long plagued poplar development. Compared with the traditional afforestation methods, poplar cultivation in clumps has more disadvantages and less impact on agriculture and long-term harmony in agriculture and forestry, reaching a win-win situation. Under the condition of scarce land resources in the plain agricultural areas of our country and under the condition of insufficient supply of national timber, poplar clump cultivation mode has important practical value for poplar development.