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林业科学 ›› 2008, Vol. 44 ›› Issue (4): 167-172.doi: 10.11707/j.1001-7488.20080430

• 论文 • 上一篇    下一篇

不同套种模式油茶幼林水土流失及养分损耗

李纪元1 肖青2 李辛雷1 李锦明2 鲁仪增1   

  1. 1.中国林业科学研究院亚热带林业研究所,富阳311400;2.江西省新余市林业局林业技术推广站,新余338000
  • 收稿日期:2006-07-26 修回日期:1900-01-01 出版日期:2008-04-25 发布日期:2008-04-25

Soil,Water and Nutrient Loss in Young Plantation of the Inter-Cropped Tea Oil (Camellia oleifera) with Different Crops

Li Jiyuan1,Xiao Qing2,Li Xinlei1,Li Jinming2,Lu Yizeng1   

  1. 1.Research Institute of Subtropical Forestry,CAF Fuyang 311400;2.Xinyu Extension Station of Forestry Science and Technology,Xinyu City Bureau of Forestry Xinyu 338000
  • Received:2006-07-26 Revised:1900-01-01 Online:2008-04-25 Published:2008-04-25

关键词: 油茶, 幼林, 套种模式, 地表径流, 土壤侵蚀, 养分损耗

Abstract: In order to understand the effect of different interplantation models on the soil and water losses of young tea oil plantations(Camellia oleifera),the soil and water losses of pure tea oil plantation;tea oil + big green bean(Phaseolus aureua);tea oil + peanut(Arachis hypogaea)were investigated for a whole year in Xinyu,located in the central Jiangxi province.The results showed that the surfaced runoff ranged from 102.03~157.29 t·hm-2a-1 with the average of 136.16 t ·hm-2a-1.The less value was observed in the inter-cropped plantation with peanut,and the runoff values from the pure plantation was very similar to that from the inter-cropped plantation with big green bean,and both were greater by 46.21% and 54.17%,respectively,compared with the inter-cropped stand with peanut.The soil erosion was 139.9~341.3 t·km-2a-1 with the average of 239.9 t·km-2a-1,and the values from the inter-cropped plantations with big green bean and peanut increased by 143.96% and 70.40%,respectively,compared with the pure oil stand.The soil erosion in the 3 type stands was all mild.The nutrient loss ranked from great to small value as the following:Ca 4.645 3 kg·hm-2a-1,K 1.402 6 kg·hm-2a-1,Mg 0.265 1 kg·hm-2a-1,P 0.042 6 kg·hm-2a-1,N 0.039 1 kg·hm-2a-1.The loss in the first half year was significantly greater than that in the second half year,regardless inter-cropped or not.The peak value appeared between March and June.The losses of N,P,and K in the inter-cropped plantation with the big green bean were less than those in the inter-cropped stand with peanut.The loss of K in the inter-cropped stand with peanut was almost the same as the pure plantation,however,the losses of N and P in the inter-cropped stand with peanut were less by 50 percent than that in the pure plantation.

Key words: Camellia oleifera, young plantation, surfaced runoff, soil erosion, nutrient loss