杉木人工林林下植物对土壤肥力的影响

doi:10.11707/j.1001-7488.2001S117

Scientia Silvae Sinicae ›› 2001, Vol. 37 ›› Issue (zk): 94-98.doi: 10.11707/j.1001-7488.2001S117

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EFFECTS OF UNDERGROWTH PLANT ON SOIL FERTILITY IN CHINESE FIR PLANTATION

Lin Kaimin,Yu Xintuo,Hong Wei,Huang Baolong

Chinese Fir Research Centre of Fujian Agriculture and Forestry university Nanping 353001;Resource and Environment College of Nanjing Forestry University Nanjing 210037

Received:2001-01-08 Revised:1900-01-01 Online:2001-11-25 Published:2001-11-25

Abstract

Abstract:

The relations between gradients of undergrowth plant coverage and biomass and soil fertility have been studied in 29 year-old different density Chinese fir plantation.The results showed that the mean height, total coverage and biomass of undergrowth plant in 29 year-old Chinese fir plantation obviously decrease with the increase of forest stand density;soil moisture and pore properties are certainly improved by undergrowth plant,but the content of organic matter, total nitrogen, total phosphorous, available nitrogen and available phosphorous basically increase with the increase of coverage of undergrowth plant in 0～20 cm and 20～40 cm, and more obvious in 0～20 cm,It shows that undergrowth plant can promote to richen nutritional elements in topsoil. Therefore protection and restoration of undergrowth plant have important significance to conservation of soil fertility in Chinese fir plantation.

Key words: Chinese fir, Undergrowth plant, Growth status, Soil fertility

Lin Kaimin;Yu Xintuo;Hong Wei;Huang Baolong. EFFECTS OF UNDERGROWTH PLANT ON SOIL FERTILITY IN CHINESE FIR PLANTATION[J]. Scientia Silvae Sinicae, 2001, 37(zk): 94-98.

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EFFECTS OF UNDERGROWTH PLANT ON SOIL FERTILITY IN CHINESE FIR PLANTATION

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