摘要
以东北林业大学森林培育实验站天然林窄带状皆伐后营造的31年生红皮云杉(Picea koraiensis)人工纯林、红皮云杉-胡桃楸(Juglans mandshurica)人工混交林、红皮云杉-水曲柳(Fraxinus mandshurica)人工混交林、红皮云杉-黄檗(Phellodendron amurense)人工混交林为研究对象,对照原有天然混交林土壤,测定各林型不同土壤层(h) 0<h≤10 cm、10 cm<h≤20 cm、20 cm<h≤30 cm的土壤养分,分析红皮云杉人工纯林和混交林与原有天然混交林之间、红皮云杉人工纯林与红皮云杉人工混交林之间土壤中有机C、全N、全P、水解N、有效P的差异。结果表明:与天然混交林相比,红皮云杉人工纯林和混交林土壤有机C、全N、全P、水解N、有效P均有不同程度的降低,分别降低了3.50%～32.75%、4.41%～42.20%、0.66%～24.87%、5.41%～32.74%、0.44%～27.01%。与红皮云杉人工纯林相比,红皮云杉人工混交林土壤的全N、全P、水解N、有效P均有不同程度的提高,分别提高了11.39%～41.0%、14.25%～57.06%、6.20%～28.17%、8.49%～34.50%、8.48%～33.45%。从改良土壤角度看,培育红皮云杉人工混交林,尤其培育红皮云杉-胡桃楸人工混交林,优于培育红皮云杉人工纯林。
Taking 31 years old of Picea koraiensis×Juglans mandshurica mixed plantation,Picea koraiensis×Fraxinus mandshurica mixed plantation,Picea koraiensis×Phellodendron amurense mixed plantation and pure Picea koraiensis plantation on the natural forest narrow strip clear cutting land in the Forest Cultivation Experiment Station of Northeast Forestry University,compared with the original natural forest soil,the soil nutrients of different soil layers(h)(0<h≤10 cm,10 cm<h≤20 cm,20 cm<h≤30 cm)were determined,and the contents of soil organic C,total N,total P,hydrolyzable nitrogen and available phosphorus in the soil of P.koraiensis plantations were compared.The contents of soil organic C,total N,total P,hydrolyzed N and available P in different layers of Picea koraiensis plantations decreased,compared with the natural forest,by 3.50%-32.75%,4.41%-42.20%,0.66%-24.87%,5.41%-32.74%and 0.44%-27.01%,respectively.The contents of total N,total P,hydrolyzed N and available P in the soils of the mixed P.koraiensis plantations were higher than those of soil organic C,total N,total P,hydrolyzed N and effective P in the pure P.koraiensis plantation,and increase rates were 11.39%-41.0%,14.25%-57.06%,6.20%-28.17%,8.49%-34.50%and 8.48%-33.45%,respectively.Considering the soil nutrient content,it should be better to cultivate mixed P.koraiensis plantation,especially for cultivate Picea koraiensis×Juglans mandshurica mixed plantation than cultivate pure P.koraiensis plantation.
作者
周磊
王树力
Zhou Lei;Wang Shuli(Northeast Forestry University,Harbin 150040,P.R.China)
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2019年第2期37-41,共5页
Journal of Northeast Forestry University
基金
国家重点研发计划项目(2017YFD0601103)
黑龙江省省级财政林业科研专项(201522)
关键词
红皮云杉
纯林
混交林
土壤养分
Picea koraiensis
Pure plantation
Mixed plantation
Soil nutrients
作者简介
第一作者:周磊,男,1993年3月生,东北林业大学林学院,硕士研究生。E-mail:leizhou93@163.com;通信作者:王树力,东北林业大学林学院,教授。E-mail:shuliwang@163.com。
