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[1]LI Jun,TIAN Chao,YANG Xin-bing.Hydrological Effects of Typical Forest Litters in the Mulan Forestry Administration of Hebei Province[J].Research of Soil and Water Conservation,2011,18(04):192-196.

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Hydrological Effects of Typical Forest Litters in the Mulan Forestry Administration of Hebei Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 18 Number of periods: 2011 04 Page number: 192-196 Column: Public date: 2011-08-20

Title:: Hydrological Effects of Typical Forest Litters in the Mulan Forestry Administration of Hebei Province

Author(s):: LI Jun^1,2, TIAN Chao¹, YANG Xin-bing¹; 1. Agricultural University of Hebei, Baoding, Hebei 071000, China;
2. Mulan Forestry Adminstration of Hebei Province, Weichang, Hebei 068450, China

Keywords:: Mulan forestry administration; litter; hydrological effect

CLC:: S715

DOI:: -

Abstract:: Litter is the second active layer of the forest hydrological effects, which is of great significance in the regulation of forest hydrology. A preliminary study of hydrological effects of litter layer was carried out in six kinds of typical and natural forest stands in the Mulan forestry administration. The result shows: (1) The litter total storage capacity of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the biggest and up to 30.47 t/hm², meanwhile it has the highest maximum water holding capacity (63.57 t/hm²);the maximum water holding rate of B. platyphylla-B. davurica is the biggest and up to 257.80%; (2) Without decomposition and semi-decomposition litter reached both saturation in 12 h, water holding capacity and soaking time demonstrated significant Logarithmic relationship (Q=aln (t)+b);water absorption rate of undecomposed and semi-decomposed litter are both faster at the first hour, then the rate of decline gradually slowed down after 6 h, the relationship of absorption rate and immersion time showed power function (V=ktn); (3) The modified interception amount of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the strongest and up to 48.60 t/hm², while Populus davidian-B. davurica-Quercus mongolica is the worst and up to 16.47 t/hm². It shows that the soil and water conservation capacity of Larix principic-rupprechtⅡ-B. platyphylla-B. davurica is the strongest, which means the forest is healthy. However, Populus davidian-B. davurica-Quercus mongolica has the weakest capacity, which means the health need to be improved.

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