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我省山楂栽培历史悠久,是全国主要产区之一,目前已有1000万株,其中结果树有250万株.1980年约产山楂2000万斤、价值达800万元.山楂系抗寒性强的树种,现已被列入我省中北部重点发展果树之一.但因1980～1981年冬春我省发生了前所未有的冻害也波及到山楂,为弄清这次山楂冻害的情况,1981年7月起,先后对我省山楂生产区进行了调查.现将调查结果汇报如下.
Hawthorn cultivation in our province has a long history, is one of the main producing areas, has 10 million, of which the tree has 2.5 million in 1980 about 20 million haw hawthorn, the value of 8 million yuan. Hawthorn cold resistance Strong species, has now been included in the central and northern part of our province to focus on the development of fruit trees, but because of the winter and spring in 1980 ~ 1981 in our province an unprecedented freeze injury also spread to hawthorn, hawthorn freeze to clarify the situation, in 1981 Since July of this year, we successively conducted a survey on the hawthorn production area in our province, and report the findings as follows.