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杨树团状造林是专门为我国平原农区设计的一种杨树与农作物长期共存的新型间作方式。它尽量缩小杨树所占的面积和空间,全轮伐期农林间作,以农为主,保证农作物高产,并可减少杨树与农作物的接触和相互竞争,使杨树对农作物的副作用降到最低。由于长期与农业分享水肥投入和土壤管理,杨树团既能速生高产,又能与农作物长期和谐相处。杨树树团状造林以局部杨树退缩,换取杨树在全局的扩展,以退为进。在我国平原农区土地资源紧缺的条件下,杨树团状造林对发展杨树有重要价值。
Poplar reforestation is a new type of intercropping system designed for the long-term coexistence of poplar and crops in China’s plain farming areas. It minimizes the area and space occupied by poplars, and agro-forestry at all rotation stages ensures that the crops are high-yielding and reduces poplar contact with crops and competition with each other, reducing the side effects of poplar on crops to lowest. Due to its long-term commitment to water and fertilizer inputs and soil management with agriculture, Poplar Group can produce both high-yielding and high-yielding crops and long-term harmony with crops. Poplar tree reforestation to local poplar withdrawal, in exchange for poplar in the global expansion, to retreat into. Under the condition of scarce land resources in the plain farming areas of our country, poplar clonal afforestation is of great value to poplar development.