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Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (1): 94-99.doi: 10.11924/j.issn.1000-6850.casb20200200114

Special Issue: 园艺

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Soil Fertility Evolution Characteristics in Main Eucalyptus Producing Areas of Guangxi: 1993-2018

Tang Jian(), Zhao Junyu, Qin Zuoyu, Wang Huili, Qin Qiyun, Zhao Zehong()   

  1. Guangxi Zhuang Autonomous Region Forestry Research Institute, Nanning 530002
  • Received:2020-02-17 Revised:2020-04-20 Online:2021-01-05 Published:2020-12-25
  • Contact: Zhao Zehong E-mail:21712104@qq.com;24459a91309@qq.com

Abstract:

To explore the characteristics of soil fertility evolution of eucalyptus plantation in Guangxi under long-term intensive management, and formulate a reasonable management method of eucalyptus plantation in Guangxi, the soil fertility quality of eucalyptus plantation from 1993 to 2018 was evaluated by means of fuzzy mathematics with soil chemical properties such as pH, organic matter, total nitrogen, total phosphorus, total potassium, alkali-hydrolyzed nitrogen, available phosphorus and available potassium. The results showed that the soil pH of eucalyptus plantation in Guangxi decreased from 4.83 to 4.63, a decrease of 4.14%. The contents of soil organic matter, total phosphorus, available nitrogen and available potassium all showed a significant decreasing trend. The soil fertility quality index (IFI) was between 0.475 and 0.613, and the overall fertility index was low. The soil of eucalyptus plantation showed a trend of acidification under long-term continuous planting during 1993-2018. In actual production, we should pay more attention to soil improvement, advocate soil testing and reasonable fertilization, reduce the use of acid fertilizer, increase the application of organic fertilizer and slow release fertilizer, and ensure the ecological health and sustainable development of eucalyptus plantation.

Key words: eucalyptus, long-term continuous planting, high strength, plantation, soil fertility evaluation

CLC Number: