[1]HU Jingxia,YANG Xinbing,ZHU Chenguang,et al.Hydrological Effects of Litter in Four Pure Forests and Soils in Northwest of Hebei Province[J].Research of Soil and Water Conservation,2017,24(04):304-310.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 04
Page number:
304-310
Column:
Public date:
2017-08-28
- Title:
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Hydrological Effects of Litter in Four Pure Forests and Soils in Northwest of Hebei Province
- Author(s):
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HU Jingxia1,2, YANG Xinbing1,2, ZHU Chenguang1,2, WEN Yafei1,2, ZHONG Liangzi1,2, MA Junjie1,2
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1. College of Forestry, Agricultural University of Hebei, Baoding, Heibei 071000, China;
2. Key Laboratory of Genetic Resources of Forest and Forest Protection of Heibei, Baoding, Heibei 071000, China
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- Keywords:
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Winter Olympics Games; Chongli; litter; soil; hydrological effect
- CLC:
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S715.7
- DOI:
-
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- Abstract:
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For the improvement of the water ecological environment and the ability of water conservation of forest in Chongli area (Qingshui River valley in Zhangjiakou), which is one of venues of Winter Olympic Games, we took four kinds of pure stands in Chongli peace forest, including Picea wilsonii, Betula platyphylla, Pobulus davidiana and Larix principis-rupprechtii, as the research objects. We set up 50 m×50 m sample plots in which litter of plots was adopted by soaking method, and hydrological effects of soil layer by cutting ring method. We carried out quantitative study of litter layer and soil layer hydrological effect. The results showed that: (1) among total amount of litter, the largest was Picea wilsonii(38.46 t/hm2) in which the accumulation amount of the semi decomposed layer of each stand was higher than that of the non decomposed layer; (2) the maximum water holding capacity of litter was Picea wilsonii(3.03 t/hm2) and the maximum effective retaining content was Picea wilsonii (2.57 t/hm2); the maximum water holding capacity of litter was Pobulus davidiana (384.22%) and it showed a logarithmic relation between the water holding capacity and water holding time; water absorption rate and moisture time of litter showed power function relationship; (3) the largest soil bulk density was Larix principis-rupprechtii (1.00 g/cm3);the smallest was Pobulus davidiana (0.67 g/cm3); the largest total porosity of soil was Betula platyphylla (67.14%) and the smallest was Pobulus davidiana (58.77%). The relationship between soil infiltration rate and infiltration time was power function relationship; (4) the order of total water holding capacity of forest land was Betula platyphylla (887.45 t/hm2) > Larix principis-rupprechtii (840.94 t/hm2) > Picea wilsonii (800.03 t/hm2) > Pobulus davidiana (768.58 t/hm2); the water holding capacity of the soil layer accounted for more than 99 %. In conclusion, the ability of broad leaved forest to conserve water and soil was stronger than that of coniferous forest; the water holding capacity of the soil layer was stronger than that of the litter layer.