四川农业大学学报 ›› 2021, Vol. 39 ›› Issue (1): 63-70.doi: 10.16036/j.issn.1000-2650.2021.01.010

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酸沉降背景下马尾松林土壤水文物理性质比较研究

王轶浩1, 王彦辉2*   

  1. 1.重庆师范大学地理与旅游学院/重庆市三峡库区地表生态过程野外科学观测研究站,重庆 401331;
    2.中国林业科学研究院森林生态环境与保护研究所/国家林业和草原局森林生态环境重点实验室,北京 100091
  • 收稿日期:2020-09-15 出版日期:2021-02-28 发布日期:2021-03-05
  • 作者简介:王轶浩,博士研究生。*责任作者:王彦辉,博士,研究员,主要从事生态水文与水土保持研究,E-mail: wangyh@caf.ac.cn。
  • 基金资助:
    重庆师范大学基金项目(20XLB005); 中挪国际合作项目(193725/S30); 重庆市林业重点科技攻关项目(渝林科研2017-12)

Comparative Study of Soil Hydro Physical Properties of Masson Pine Forest under the Background of Acid Deposition

WANG Yihao1, WANG Yanhui2*   

  1. 1. College of Geography and Tourism,Chongqing Normal University/Chongqing Field Science Observation and Research Station for Surface Ecological Process of Three Gorges Reservoir Area,Chongqing 401331,China;
    2. Institute of Forest Ecology,Environment and Protection,Chinese Academy of Forestry/Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Beijing 100091,China
  • Received:2020-09-15 Online:2021-02-28 Published:2021-03-05

摘要: 【目的】探讨酸沉降背景下马尾松林土壤水文物理性质及其与其他森林类型的差异。【方法】采用土钻法和环刀法,对重庆酸雨区马尾松林和毛竹林、针阔混交林、阔叶林4种森林类型的土壤水文物理性质进行研究。【结果】①马尾松林和毛竹林的各月土壤含水量较接近,且高于阔叶林和针阔混交林,以阔叶林最小;②马尾松林土壤容重、孔隙度、持水量和贮水量均与毛竹林差异不显著(P>0.05),但显著低于阔叶林(P<0.05)及针阔混交林(P<0.05);③马尾松林土壤初渗率变化在0.53~18.24 mm/min之间,稳渗率变化在0~7.33 mm/min之间,它们均与土壤容重呈负相关(P<0.01),但与土壤总孔隙度和非毛管孔隙度呈正相关(P<0.01)。【结论】酸沉降背景下4种森林类型的土壤水文物理性质以马尾松林和毛竹林较差,而阔叶林最好。

关键词: 土壤水文物理性质, 酸沉降, 森林类型, 重庆

Abstract: 【Objective】 In order to explore soil hydro physical properties of Masson pine forest and its differences with other forest types under the background of acid deposition.【Method】 Soil hydro physical properties of Masson pine forest,Bamboo forest,broadleaved-coniferous mixed forest and broad-leaf forest in the acid rain area of Chongqing were studied by the method of soil drilling and cutting ring.【Result】 ①Monthly soil moisture content in Masson pine forest was close to those in Bamboo forest,and higher than those in broadleaved-coniferous mixed forest and broad-leaf forest where soil moisture content was the smallest.②Soil bulk density,soil porosity,water holding capacity and water storage capacity in Masson pine forest had not significant differences with those in Bamboo forest (P>0.05),but were signifi-cantly lower than those in broad-leaf forest (P<0.05) and broadleaved-coniferous mixed forest.③In Masson pine forest,soil initial infiltration rate ranged from 0.53 mm/min to 18.24 mm/min,and soil stable infiltration rate had a range of 0-7.33 mm/min.Soil initial infiltration rate and soil stable infiltration rate both presented a significantly negative relation (P<0.01) with soil bulk density,but positive relation (P<0.01) with soil total porosity and soil non-capillary porosity.【Conclusion】 Soil hydro physical properties of Mas-son pine forest and Bamboo forest are worse among four forest types under the background of acid deposition,and broad-leaf forest is the best.

Key words: soil hydro physical properties, acid deposition, forest type, Chongqing

中图分类号: 

  • S718.5