中度抚育对冀北山地不同起源白桦林土壤水文效应的影响  

Effects of moderate tending intensities on soil water-physical properties of Betula platyphylla forests with different origins in mountainous area of northern Hebei Province

作　　者：赵会艳[1] 平丽丽 冯楷斌 邓丽娟[1] 刘海翔 陈继东[1] 屈柏林[1] ZHAO Huiyan;PING Lili;FENG Kaibin;DENG Lijuan;LIU Haixiang;CHEN Jidong;QU Bailin(Mulanweichang National Forestry Administration of Hebei Province, Weichang 068450,China;2Chengde Academy of Agricultural and Forstry Science, Chengde 067000, China;3Forestry Administration of Zhangjiakou, Zhangjiakou 075000, China)

机构地区：[1]河北省木兰围场国有林场管理局,河北围场068450 [2]承德市农林科学院,河北承德067000 [3]张家口市国有林场管理处,河北张家口075000

出　　处：《林业与生态科学》2020年第1期10-16,共7页Forestry and Ecological Sciences

基　　金：“十三五”重点研发计划子课题(2016YFD060020303)。

摘　　要：为探索科学有效的营林抚育措施,充分发挥森林的经济和生态效益,以冀北山地不同起源白桦林为研究对象,开展中度抚育对林下土壤水文变化的监测研究。结果表明:抚育后白桦天然林的毛管孔隙度、总孔隙度和毛管持水量分别增加了2.74%、3.17%、2.54%,且白桦天然林高于白桦人工林;白桦人工林的非毛管孔隙度和有效持水量分别增加了13.92%和2.54%,且白桦人工林高于白桦天然林;综合看来,中度抚育对白桦天然林的土壤性质影响要高于白桦人工林;中度抚育可在一定程度上改善土壤水文效应,对森林水源涵养能力的调控和森林经营管理有重要意义。In order to explore the scientific and effective forest management measures,and give full play the economic and ecological benefits of forests,the Betula platyphylla forests from different origins in northern Hebei were taken as the research samples,and we observed the changes of physical properties of soil water in the forest under moderate tending.The results showed that after tending,the capillary porosity,total porosity and capillary water-holding capacity of Betula platyphylla forest increased by 2.74%,3.17%and 2.54 t/hm2,respectively,and the result of natural forest of Betula platyphylla was greater than that of Betula platyphylla plantation.The non-capillary porosity and effective water-holding capacity of Betula platyphylla plantation increased by 13.92%and 2.45%respectively,and the result of birch plantation was greater than that of the natural birch forest.In general,the moderate tending had more impact on soil properties of natural Betula platyphylla forest than on that of Betula platyphylla plantation.The moderate tending could improve soil hydrological effects to some extent,and is of great significance to the regulation of forest water conservation capacity and forest management.

关 键 词：冀北山地 中度抚育 白桦林 水文效应 

分 类 号：S753.7[农业科学—森林经理学]