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Position: Home > Articles > Soil Hydrological Effects and Forest Litters of Platycladus orientalis Plantation in the Different Densities in Mountain of Beijing Journal of Soil and Water Conservation 2013 (1) 224-229

北京山地不同密度侧柏人工林枯落物及土壤水文效应

作  者:
鲁绍伟;陈波;潘青华;张玉平;李少宁
单  位:
北京市农林科学院林业果树研究所;河北农业大学林学院
关键词:
北京山地;侧柏人工林;枯落物;土壤水文效应
摘  要:
以北京市八达岭石佛寺浅石山区5种密度(1 500,2 000,2 550,2 700,2 900株/hm2)侧柏人工纯林为对象,对其枯落物层和土壤层水文效应进行初步研究。结果表明:枯落物总储量变化范围在22.94~34.35t/hm2之间,且随林分密度增加枯落物储量增加,最大持水量的变化范围为13.37~56.47t/hm2,有效拦蓄能力在26.97~52.02t/hm2之间,2 700株/hm2有效拦蓄能力最强,为52.02t/hm2;枯落物持水量与浸泡时间呈明显对数关系(R>0.88),枯落物吸水速率与浸泡时间呈明显幂函数关系(R>0.99);土壤容重均值变化范围为1.09~1.37g/cm3,总孔隙度的变化范围为38.66%~54.30%;土壤层有效持水能力以密度为1 500株/hm2的最强,为157.27t/hm2;土壤入渗速率与入渗时间呈明显幂函数关系(R>0.94)。综合分析得出,密度为2 000株/hm2的侧柏林水源涵养能力最强。
译  名:
Soil Hydrological Effects and Forest Litters of Platycladus orientalis Plantation in the Different Densities in Mountain of Beijing
作  者:
LU Shao-wei1,CHEN Bo2,PAN Qing-hua1,ZHANG Yu-ping1,LI Shao-ning1(1.Forestry and Pomology Institute,Beijing Academy of Agriculture and Forestry Sciences, Beijing 100093;2.College of Forestry,Agricultural University of Hebei,Baoding,Heibei 071000)
关键词:
mountain of Beijing;Platycladus orientalis plantation;litters;soil hydrological effect
摘  要:
A preliminary study of hydrological effects of litters layer and soil layer were carried out in five densities(1 500,2 000,2 550,2 700,2 900 stem per ha) Platycladus orientalis of artificial forests stands in Badaling Shifosi shallow mountain of Beijing.The result showed that: The litter total storage capacity was about 22.94 ~34.35 t/hm2,and litters reserves increased with stand density increase,the maximum water holding capacity ranged from 13.37 t/hm2 to 56.47 t/hm2,the modified interception capacity was about 26.97~52.02 t/hm2,the modified interception amount of 2 700 stem per ha was the strongest,reachong 52.02 t/hm2;water holding capacity and soaking time of without decomposition litter and semi-decomposition litter both had visible logarithmic relationship(R>0.88),absorption rate and immersion time was power function relationship(R>0.99);the average of soil bulk density ranged from 1.09 g/cm3 to 1.37 g/cm3,total soil porosity was about 38.66%~54.30%;the soil water-holding capacity of 1 500 stem per ha was the most powerful to 157.27 t/hm2,infiltration rate and infiltration fit time was power function(R>0.94).Comprehensive analysis,the density for 2 000 stem per ha P.orientalis water conservation capacity was the strongest.

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