[1]ZHANG Yin,HUANG Yongmei,ZHOU Changliang,et al.Study on Litter and Soil Water Conservation Function of Pinus tabulaeformis Forests at 5 Altitudinal Gradients in Mountains of Northern Hebei[J].Research of Soil and Water Conservation,2019,26(02):126-131.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 02
Page number:
126-131
Column:
Public date:
2019-04-28
- Title:
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Study on Litter and Soil Water Conservation Function of Pinus tabulaeformis Forests at 5 Altitudinal Gradients in Mountains of Northern Hebei
- Author(s):
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ZHANG Yin1, HUANG Yongmei2, ZHOU Changliang2, LIANG Wenjun3
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1. Shanxi Forestry Vocational and Technical College, Taiyuan 030009, China;
2. Mulan-Weichang Forestry Administration of Hebei Province, Weichang, Hebei 068450, China;
3. Shanxi Agricultural University, Taigu, Shanxi 030800, China
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- Keywords:
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altitudes; litters; soil; water conservation
- CLC:
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S714.7;S715
- DOI:
-
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- Abstract:
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In order to study the water conservation function of Pinus tabuliformis in five elevation gradients (910 m, 1 050 m, 1 160 m, 1 320 m, 1 450 m) in the northern Hebei, the immersion method was used to control the litter layer of the stand. The water volume and capacity of the storage of litter were studied, and the water storage capacity of the soil layer was studied by the ring method and the double ring method. The results showed that the total accumulation of litter, the maximum water holding capacity and the change of the effective retention capacity were the same as the elevation the increases, and the maximum water holding rate increased with the increase of elevation, and the total volume change ranged from 32.14 t/hm2 to 41.97 t/hm2, the maximum water holding capacity ranged from 67.31 t/hm2 to 103.95 t/hm2, and the maximum water holding capacity was effectively blocked. The maximum available water holding ranged from 48.16 t/hm2 to 84.69 t/hm2, the maximum water holding rate ranged from 196.85% to 253.34%, the water holding capacity of litter, water absorption rate and soaking time had the better fitting relationship (R>0.96). The soil bulk density increased first and then decreased with the increase of elevation, and the range of change was 0.96~1.20 g/cm3. The total porosity decreased first and then increased with the increase of elevation. The effective water holding capacity of soil layer decreased with the increase of elevation, and relationship between the soil infiltration rate and infiltration time could be described by the power function (R>0.92).