在祁连山冷龙岭北麓冰川缘地——中牧甘肃山丹马场海拔高度不同的5个试验地(海拔分别为2 560、2 900、2 800、2 500、2 480 m,分别记作spot i,i=0,…,4))引种文冠果.结果表明:1～3年生文冠果播种苗平均苗高由高到低顺序:spot 0＞spot 3＞spot 4＞spot 2＞spot 1,其中spot 1播种苗、插根苗和移植苗连年生长量为零,spot 2苗木连年生长量部分为零.5个试验点的播种苗、插根苗、移植苗地下部分越冬成活率均达到100％.苗木平均枯梢率由大到小依次为spot 1＞spot 2＞spot 4＞spot 0＞spot 3.其中移植苗的枯梢较播种苗轻.在试验地发现文冠果苗木有黄化病和立枯病.spot 3、spot 0、spot 4所在地较适合文冠果的栽培,4年生播种苗在样地3只有1株结果,5年生时无开花及结果的情况.%Xanthoceras sorbifolia was introduced to 5 locations with different elevations (2 560,2 900,2 800,2 500,and 2 480 m,labeled as spot 0,spot 1,spot 2,spot 3,and spot 4,respectively) in Zhongmu Shandan Horse Husbandry Farm which is located in the glacial margin areas on the north slope of Lenglongling in Qilian Mountains.The height growth of the seedlings with the age of 1 to 3-year-old in 5 locations was in the order of spot 0＞spot 3＞spot 4＞spot 2＞spot 1.In spot 1,the current annual increments of the seedlings from seed sowing,root cutting,transplanting were all 0,and partial 0 in spot 2.The survival rates of overwinter of the underground parts of the seedlings were 100％.The average rate of the occurrence of dieback was in the order of spot 1＞spot 2＞spot 4＞spot 0＞spot 3 in which the rate of dieback of transplanting seedlings were slightly lower than others.Yellow leaf and seedling blight were found in some trial spots.It was concluded that spot 3,spot 0,and spot 4 were relatively suitable for the cultivation of X.sorbifolia.In spot 3,only one plant from seed-sowing with 4-year-old was found to fruit,and no flowering and fruiting were observed for 5-year-old seedlings.
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