Seasonal Changes of the Rhizosphere Soil Enzyme Activity of the Different Allelopathic Types of Cunninghamia lanceolata Clones in Different Stands' Soil
The different allelopathic types of Chinese fir clones (tolerant-autotoxins clone and sensitive-autotoxins clone) were acted as experimental materials,the soils with different generation Chinese fir plantation (include first,second and third generation) and evergreen broad-leaf forest(CK) were acted as substrates,the seasonal activities of urease,invertase,catalase and polyphenol oxidase in rhizospheric soils of different types of allelopathic Chinese fir clones were determined.The results indicated that the same forest types soil in the same testing time conditions,the urease,invertase,catalase and polyphenol oxidase activity of Chinese fir tolerant-autotoxins clone rhizosphere soil were higher than the sensitive-autotoxins clone ; In respect of the same allelopathic types of Chinese fir clones rhizosphere soil enzyme activity in terms of differences,in the same test time,the urease and catalase activity of second generations of the different allelopathic types of Chinese fir clones (tolerant-autotoxins clone and sensitive-autotoxins clone) rhizosphere soil ＞ first generation of forest soil ＞ third generation of forest soil ＞ broad-leaved forest soil,and polyphenol oxidase activity had a gradual increase trend with the increase of the active planted algebra.
国家科技期刊平台
NSTL
万方数据
维普
