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(三)苗木造林密度“栽松,在雨水前,法同诸树。土人惟插小苗,不移大树,谓其难活。不知剔牙松(按即白皮松)亦可移植,何有于此?但松在山上,风高易摇,且暑月无雨,不能滋润,宜择身矮树嫩者植之。晴则荫水,伏里尤宜殷勤,则百株百活。若雨水之后,植亦难成。一云:栽时去其直下大根,唯留四边松根,则易于偃盖。”见《养余月令》。“桧种如松法。插枝二、三月桧芽蘖动时,先熟(?)黄土地成畦,下水饮畦一遍,渗
(C) afforestation density “planting loose, before the rain, with the law of all kinds of trees .Thin people plug the seedlings, do not move the tree, saying that it is difficult to live.I do not know tooth decay (by the white bark pine) can also be transplanted, why In this? But loose in the mountains, the wind is easy to shake, and the summer months no rain, can not be moistened, should choose to plant shrubs soft tender. Clearly shade, Vryu should be courteous, then 100 strains live. After the rain, planting is also difficult as a cloud: When planting it to go straight down, leaving only four sides of the pine root, it is easy to Yan cover. ”Cypress species such as pine method. Cuttings in March and March cypress bud tilting, the first cooked (?) Loess into the grub, drinking water again, seepage