Effect of Visitor Trampling on Soil Physio-chemical Properties in Jigongshan National Nature Reserve
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摘要: 采用野外调查和室内分析的方法,研究了河南鸡公山国家级自然保护区内森林风景区土壤理化特征对不同旅游干扰强度和干扰距离的响应。结果表明,重度干扰的土壤容重(1.23 g·cm-3)显著高于轻度(1.03 g·cm-3)和中度(1.07 g·cm-3)干扰的(P<0.05),而其土壤总孔隙度(57.5%)则显著低于轻度(61.3%)和中度(59.6%)干扰的(P<0.05);中度及重度干扰下的土壤全氮含量(1.9 g·kg-1和1.8 g·kg-1)和有机碳含量(19.3 g·kg-1和21.2 g·kg-1)均显著低于轻度干扰的(2.2 g·kg-1和26.8 g·kg-1)。与背景区(距干扰中心区边缘外10 m以上)相比,干扰导致缓冲区(距干扰中心区边缘外3 ~ 10 m)的土壤容重和总孔隙度变化随着干扰强度的增加而下降,而核心区(位于干扰中心区0 ~ 1 m)的土壤容重和总孔隙度的变化随干扰强度的增加而增加。以上研究结果可为森林风景区的规划和科学管理提供参考。
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关键词:
- 旅游干扰 /
- 土壤物理性质 /
- 土壤化学性质 /
- 鸡公山国家级自然保护区
Abstract: Core area, buffer area and control were established according to different visitor trampling in Boerdeng Forest Park of Jigongshan National Nature Reserve, Henan province, and soil samples were collected in different area for determination of physio-chemical properties. The results showed that soil bulk density under serious trampling (1.23 g/cm3) was significantly higher than that under light (1.03 g/cm3) and middle (1.07 g/cm3) ones, whereas soil total porosity (57.5%) were lower than that under light (61.3%) and middle (59.6%) ones. Soil total nitrogen (1.9 g/kg and 1.8 g/kg) and soil organic carbon (19.3 g/kg and 21.2 g/kg) under middle and serious trampling were significantly lower than that under light one (2.2 g/kg and 26.8 g/kg). Compared with the control (10 m away from the core area), soil bulk density and soil total porosity decreased with the increased of trampling intensities in the buffer area, however, soil bulk density and soil total porosity had positive relation with elevated with trampling intensities in the core area. -
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