JOURNAL OF NATURAL RESOURCES ›› 2006, Vol. 21 ›› Issue (1): 133-138.doi: 10.11849/zrzyxb.2006.01.017

• Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS • Previous Articles     Next Articles

Studies on the Effect of Recreational Activities on Soil Enzyme and Microbial Activities in Zhangjiajie National Forest Park

TAN Zhou-jin1, XIAO Qi-ming2, YANG Hai-jun2, HE Xiao-xiang2, ZHOU Hong-li1   

  1. 1. College of Food Science and Technology,Hunan Agricultural University,Changsha 410128,China;
    2. Hunan Agricultural University,Changsha 410128,China
  • Received:2005-08-07 Revised:2005-10-08 Online:2006-02-25 Published:2006-02-25

Abstract: Ecological environment can be destroyed by all kinds of recreation activities,such as animal-feeding and people's touching.In order to probe into the effect of visitors' activities on soil biological properties and provide useful suggestion for ecological recreation,studies on soil microbial and enzyme activities of Zhangjiajie National Forest Park were conducted.The results showed that the soil enzyme activities in control zone were the highest,and the soil enzyme activities in buffer zone were the moderate,and the soil enzyme activities in active zone were the lowest.The soil ammonification intensities and microbial activities were:the control zone >buffer zone >active zone.The soil nitrification intensities were:the active zone>buffer zone>control zone.The microbial activities and enzyme activities in 0-5cm soil was affected prominently by recrea-tional activities.The results also showed that microbial and enzyme activities in 5-15cm soil and 15-25cm layer soil from control zone and buffer zone were not affected prominently by recrea-tional activities,but were different prominently from active zone.The ammonification intensities,cellulase activities,xylanase activities and protease activities,which were associated to the decomposition of organic matter,were mainly affected by the quantities of organ matter.The nitification intensities were mainly affected by soil physical and chemical properties,which could improve the nitrite content.The soil microbial and enzyme activities were:0-5cm>5-15cm>15-25cm.All these results showed that the soil microbial and enzyme activities in Zhangjiajie National Forest Park were destroyed,and it's necessary to take measures to protect Zhangjiajie National Forest Park from being destroyed.

Key words: recreation activities, Zhangjiajie National Forest Park, soil enzyme, soil microorga-nism