论文部分内容阅读
通过对我省山地造林中常规7个树种的旱地造林对比试验,指出供试树种的抗旱性依次为:柠条>山杏>白榆>中国沙棘>柽柳>木梨>花椒。其成活率由95%降至50%,保存率由78降至41%。确定柠条、山杏、白榆为抗旱树种;中国沙棘、柽柳为中性抗旱树种;木梨和花椒为不适宜山地抗旱造林树种。文中还指出集流整地造林成活率和保存率均高于以往常规整地造林。
According to the comparative experiment on afforestation of dry land in seven afforested forests in mountainous area in our province, it was pointed out that the drought resistance of the tested trees were as follows: Caragana> Armeniaca sibirica> Ulmus pumila> Chinese seabuckthorn> Tamarix chinensis> Mu pear> Zanthoxylum bungeanum. The survival rate decreased from 95% to 50%, saving rate decreased from 78 to 41%. The Caragana, Armeniaca sibirica and Ulmus pumila were identified as drought-resistant species. The Chinese seabuckthorn and Tamarix chinensis were neutral drought-resistant species. The pear and pepper species were unsuitable for mountain drought-resistant tree species. The paper also pointed out that the flowering and afforestation survival rate and preservation rate are higher than the conventional land preparation afforestation.