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[1]LI Wuling.Impacts of Tourist Disturbance on Soil Enzyme Activity and Water Quality in Poyang Lake National Wetland Park[J].Research of Soil and Water Conservation,2015,22(03):61-66.

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Impacts of Tourist Disturbance on Soil Enzyme Activity and Water Quality in Poyang Lake National Wetland Park

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 03 Page number: 61-66 Column: Public date: 2015-06-28

Title:: Impacts of Tourist Disturbance on Soil Enzyme Activity and Water Quality in Poyang Lake National Wetland Park

Author(s):: LI Wuling; Department of Tourism of Politics and Law College, Shihezi University, Shihezi, Xinjiang 832003, China

Keywords:: tourist disturbance; Poyang Lake National Wetland Park; soil enzyme activity; water quality

CLC:: S154.2;Q938

DOI:: -

Abstract:: The impacts of tourist disturbances (High Disturbance, HD; Middle Disturbance, MD; Lower Disturbance, LD) on soil enzyme activity and water quality in Poyang Lake National Wetland Park were analyzed based on the field investigation and the laboratory analysis. The results showed that the activities of soil urease, sucrase, dehydrogenase and phosphatase significantly decreased with the increase of tourist disturbance in tensities, MD and HD were significantly different from CK (p < 0.05), LD was not significant difference with CK (p > 0.05), the middle tourist disturbance had no effect on soil enzyme activity. The vertical distribution of soil enzyme activity had obvious surface accumulation, the surface accumulation tended to wear off because of tourist disturbance, and tourism disturbance had no effect on soil enzyme activity in 40—60 cm depth. Soil invertase and urease activities could be used as the indicators of soil health in Poyang Lake Wetland Park because their rangeability was larger. TN, TP, NH₄⁺-N, BOD₅, COD_Cr and permanganate index significantly increased with the increase of tourist disturbance, TN and NH₄⁺-N were sensitive to tourist disturbance. The contents of TN, TP, NH₄⁺-N, BOD₅, COD_Cr and permanganate index of MD and HD were significant difference with CK (p < 0.05), which indicated that tourist disturbance had reduced the water quality of Poyang Lake National Wetland park and led to the light water eutrophication, however, the middle disturbance (MD) had the slight effect on the water quality of Poyang Lake National Wetland park. Correlation analysis indicated that the soil enzyme activity was significantly or extremely significantly positively related to the water quality, which suggested that the soil water quality was more dependent on the soil enzyme activity.

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