[1]LIU Xiaolan.Impacts of Tourist Disturbance on Litter and Soil Hydrology Functions of Abies fargesii var. faxoniana Forest in Jiuzhaigou,Sichuan[J].Research of Soil and Water Conservation,2015,22(02):229-234.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 02
Page number:
229-234
Column:
Public date:
2015-04-28
- Title:
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Impacts of Tourist Disturbance on Litter and Soil Hydrology Functions of Abies fargesii var. faxoniana Forest in Jiuzhaigou,Sichuan
- Author(s):
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LIU Xiaolan
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Mianyang Occupation Technical College, Mianyang, Sichuan 621000, China
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- Keywords:
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tourist disturbance; Jiuzhaigou; litter; soil; hydrology function
- CLC:
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X53;S715
- DOI:
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- Abstract:
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In recent years, tourism has developed rapidly in Jiuzhaigou Nature Reserve which has been designated a World Heritage Natural Site. The impacts of tourist disturbance on litter and soil hydrology functions of Abies fargesii var. faxoniana forest in Jiuzhaigou were analyzed based on the field investigation and the laboratory test. The results showed that tourist disturbance significantly decreased the litter thickness, the maximum capacity of soil moisture, the maximum rate of soil moisture, natural moisture rate, the effective rate of interception and the effective capacity of interception(p<0.05), which decreased by 40.48%, 29.68%, 25.21%, 49.96%, 38.92% and 34.29%, respectively,compared with non-tourist disturbance area (CK). Tourist activities destroyed the soil properties severely,compared with CK, the soil bulk density of tourism disturbance area significantly increased, while soil total porosity, capillary porosity and capillary porosity significantly decreased. In tourist disturbance area, the maximum capacity of soil moisture, the maximum rate of soil moisture, effective capacity of soil moisture and soil moisture decreased by 9.11%, 0.34%, 12.91% and 8.25%, respectively, the soil moisture of early rainy season, saturated water content and the hydrological spaces decreased by 41.59%, 56.01% and 44.50%, respectively. In the same soil layer, all these factors showed the sequence of CK > tourist disturbance area, while the gap of non-tourist disturbance area and tourist disturbance area decreased with increase of soil depth. Below 30 cm soil layer, all these factors of tourist disturbance area reached the agreement with CK, suggesting that tourist disturbance seriously damaged the function of soil hydrology, and this damage mainly occurred in the 0—30 cm soil layer. Correlation analysis showed that soil permeability was significantly positively correlated to soil total porosity and noncapillary poropsity(p<0.01).