摘要
在阜新蒙古族自治县选择不同生长阶段的沙棘林下的土壤为主要研究对象,对其理化性质进行了测定。结果表明:随着沙棘年龄的增长,沙棘林下土壤容重逐渐降低,土壤总孔隙度、毛管孔隙度、最大持水量、毛管持水量、最小持水量均提高;土壤pH值随林龄增加而降低,土壤有机质、全氮、速效氮、全磷、速效磷等化学指标均随林龄增加而增加;全钾和速效钾含量随沙棘林龄的增加而减少。
Taking the soil undergrowth Hippophae rhamnoides at different growth stages in Mongolia Autonomous County of Fuxin City as the main object,its physicochemical properties were determined.Result shows that：soil bulk density decrease with the increase of the forest age of Hippophae rhamnoides;soil porosity,soil total porosity,capillary porosity,water holding capacity,capillary water,minimum water holding capacity are all increase;soil PH value decrease with the increase of forest age;soil organic matter,total nitrogen,available nitrogen,total phosphorus,available phosphorus and other chemical indicators increase with the increase of stand age.Total K and content of available K reduce with the increase of forest age for Hippophae rhamnoides
出处
《防护林科技》
2016年第5期25-26,71,共3页
Protection Forest Science and Technology
关键词
沙棘林
土壤
理化性质
Hippophae rhamnoides plantation
soil
physicochemical properties
