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应用生态学报 ›› 1999, Vol. 10 ›› Issue (3): 283-285.

• 研究论文 • 上一篇    下一篇

武夷山森林土壤生化特性的初步研究

庄铁诚1, 张瑜斌1, 林鹏1, 陈仁华2   

  1. 1. 厦门大学生物学系, 厦门 361005;
    2. 武夷山国家级自然保护区, 武夷山 354315
  • 收稿日期:1996-11-18 修回日期:1998-12-31 出版日期:1999-05-25 发布日期:1999-05-25
  • 通讯作者: 张瑜斌
  • 作者简介:庄铁诚,男,60岁,教授,近20年来致力于滨海河口等环境微生物方向的研究,已发表论文30多篇.E-mail:Tczhuang@Jingxian.xmu.edu.
  • 基金资助:

    福建省自然科学基金(C92004)和武夷山自然保护区管理局资助项目.

Biochemical characters of forest soils at Wuyishan Mountain

Zhuang Tiecheng1, Zhang Yubin1, Lin Peng1, Chen Renhua2   

  1. 1. Department of Biology, Xiamen University, Xiamen 361005;
    2. Administrative Bureau of Wuyishan Natural Reserve, Wuyishan 354315
  • Received:1996-11-18 Revised:1998-12-31 Online:1999-05-25 Published:1999-05-25

摘要: 研究了武夷山自然保护区森林土壤生化特性。结果表明,不同生境土壤呼吸作用、纤维分解作用和硝化作用等3项生化强度有明显差异,先峰岭(常绿阔叶林)>大竹岚(毛竹林).同一生境中的不同小生境3项生化强度的差异也很显着,尤其是呼吸作用强度,落叶层>腐殖层>土壤层;纤维分解作用强度,腐殖层>落叶层>土壤层;硝化作用强度,土壤层>落叶层>腐殖层。无论那一种生境3项生化强度之间,呼吸作用强度与纤维分解作用强度有一定相关性,而硝化作用强度与前两项未显示相关。不同生境土壤蔗糖酶、纤维素酶和蛋白酶等活性显着不同,大竹岚>先峰岭。同一生境中的不同小生境3种酶活性随土壤剖面深度而降低;蔗糖酶是各生境中活性最大酶类,变化较剧;纤维素酶和蛋白酶则活性较小,变化较缓和。

关键词: 森林土壤, 生化特性, 土壤酶, 武夷山, 烟草, 光合产物, 光环境, 13C, 光合特性

Abstract: Studies on the biochemical characters of forest soils in Wuyishan Mt. Natural Reserve show that the rates of soil respiration, cellular decomposition and nitrification differed obviously with habitats. Soils under broad leaved evergreen forest (Castanopsis eyrei) at Xianfengling had higher rates than those under moso bamboo forest (Phyllostachys heterocyca var. pubescens) at Dazhulan. The three rates at each habitat also significantly differed with microhabitats: for respiration rate, litter layer>humus layer>soil layer; and for nitrification rate, soil layer>litter layer>humus layer; for cellular decomposition rate, humus layer>litter layer>soil layer. Among the three rates at each hibitat, there existed a definite relationship between respiration rate and cellular decomposition rate, while the nitrification rate was independent of the other two. The activities of sucrase, celluase and proteinase varied with different habitats, which were higher at Dazhulan than at Xianfengling, and decreased with increasing soil depth. Among the three enzymes, sucrase had the highest activity at all microhabitats, and the variation of its activity was greater.

Key words: Forest soil, Biochemical character, Soil enzyme, Wuyishan Mt, 13C, light environment, photosynthetic characteristics, photosynthetic products, flue-cured tobacco