摘要
通过研究不同海拔、坡向条件下沙棘的生长情况以及土壤的蓄水能力变化,结果表明:随着坡向、海拔的变化,沙棘的成活率有所差异,在北坡上造林,海拔300m以下成活率最高,为90.2%;西坡和东坡,200m海拔成活率最高,分别为86.7%和81.3%;北坡和东坡上,3年生沙棘苗高、地径生长量最大的分别是海拔在300、200m左右的区域;西坡上,苗高、地径生长量最大的分别是海拔200、300m处;北坡和西坡上,以海拔300m处的土壤含水量增幅最大,分别为7.48%、51.10%,东坡上以海拔200m处的土壤含水量增幅最明显,达到了15.25%。
The growth of Hippophae rhamnoides under different altitude and slope conditions and the change of soil water storage capacity were studied.Result shows that the survival rate of Hippophae rhamnoides varied with the slope direction and altitude.On the north slope,the afforestation rate of Hippophae rhamnoides is the highest at the altitude of 300 m,being 90.2%.On the west&east slope,the survival rate of Hippophae rhamnoides is the highest at 200 m,which is 86.7%and 81.3%respectively.On the north slope and the east slope,the largest growth of seedling height and the ground diameter of three-year-old Hippophae rhamnoides are the areas with altitude of 300&200 m respectively.On the west slope,the highest growth of seedling height&ground diameter is at the altitude of 200,300 m.On the north&west slope,the soil water content increase at the altitude of 300 m,which is 7.48%&51.10%respectively.The soil moisture content at the altitude of 200 m on the east slope is the most obvious,being 15.25%.
作者
管颖
Guan Ying(State-owned Qingsongling Forest Farm,Jianping County,Chaoyang 122429,China)
出处
《防护林科技》
2019年第1期46-47,89,共3页
Protection Forest Science and Technology
关键词
立地条件
沙棘
造林
北方地区
site conditions
Hippophae rhamnoides
afforestation
northern region
