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林业科学 ›› 2001, Vol. 37 ›› Issue (4): 124-128.doi: 10.11707/j.1001-7488.20010420

• 研究简报 • 上一篇    下一篇

缙云山森林土壤酶活性与植物多样性的关系

杨万勤 钟章成 陶建平 何维明   

  1. 西南师范大学生命科学学院,重庆400715
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-07-25 发布日期:2001-07-25

STUDY ON RELATIONSHIP BETWEEN SOIL ENZYMIC ACTIVITIES AND PLANT SPECIES DIVERSITY IN FOREST ECOSYSTEM OF MT.JINYUN

Yang Wanqin,Zhong Zhangcheng,Tao Jianping,He Weiming   

  1. College of Life Science,Southwest China Normal University Chongqing400715
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-07-25 Published:2001-07-25

关键词: 土壤酶活性, 植物多样性, 相关性, 森林生态系统

Abstract:

By the methods of sampling soil profiles which A,B,and C represent humus horizons,illuvial horizons,and parent materials horizons respectively,relationships between the activities of soil enzymes (which include catalase,invertase,protease,and acid phosphatase) and plant species diversity in three secondary successional plant communitites of forest ecosystem in Mt.Jinyun were studied in this paper.Results showed that different degree′s correlations existed between soil enzymic activities and plant species diversity indice (PSDI) which included Shannon-Wiener H′index and Hill′s species diversity indice family NA,moreover,the degree of correlation depended on the horizon of soils,the type of enzymes,and the life form of plants (i.e.,tree,or shrub or grass).The degree of correlation between PSDI and soilenzymic activities decreased by the orders of A→B→C.The most significant correlation with PSDI was the activity of soil catalase,and in turn,was the activity of soil invertase,On the whole,the correlation between soil enzymic activities and tree layer′s PSDI was the most evident.Tree layer′s PSDI were positively and significantly (P<0.05) or very significantly (P<0.01) correlated with the activities of catalase and invertase of A and B horizons,and of protease and acid phosphatase of A horizons.Grass layer′s PSDI were also positively and significantly (P<0.05) correlated with the activities of catalase and invertase of A horizons.Shrub layer′s PSDI were not significantly correlated with soil enzymic activities.

Key words: Soil enzymic activity, Plant species diversity, Correlation, Forest ecosystem