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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (34): 1-5.doi: 10.11924/j.issn.1000-6850.casb15050112

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Runoff and Sediment Characteristics and Nutrient Loss Under Forest Canopy of Pinus massoniana with Different Inter-planting Modes

Huang Shide   

  1. (1Fujian Academy of Forestry, Fuzhou 350012;2Fujian Provincial Key Laboratory of Silviculture and Forest Product Processing and Utilization, Fuzhou 350012)
  • Received:2015-05-20 Revised:2015-06-12 Accepted:2015-06-23 Online:2015-12-17 Published:2015-12-17

Abstract: The paper aims to select inter-planting modes which could effectively conserve soil and water and decrease nutrient loss. Runoff and sediment characteristics and nutrient loss under forest canopy of Pinus massoniana with different inter-planting modes, including no inter-planting control, inter-planting with Camellia oleifera, inter-planting with Camellia oleifera and Arachis hypogaea, inter-planting with Camellia oleifera and Glycine max, were monitored for a whole year in Changting County, located in the northwestern Fujian Province. The results showed that the runoff and sediment were mainly concentrated in spring and summer, and their seasonal distribution rule was similar to that of precipitation. The runoff and sediment in wet season accounted for 84.47% and 86.08% of the entire quantities, respectively. The runoff and sediment were influenced by precipitation difference, which in dry season had obvious greater influence than in wet season. The runoff and sediment were significantly correlated (P<0.05). As compared with the control, annual runoff and sediment and nutrient loss had slight increase after inter-planting with Camellia oleifera, however, annual runoff and sediment and nutrient loss had obvious decrease after inter-planting with Camellia oleifera and two kinds of green manure. The research proved that only adopting inter-planting Camellia oleifera mode could stimulate runoff and sediment and increase nutrient loss, but inter-planting modes through green manure planting could effectively conserve soil and water and decrease nutrient loss.