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应用生态学报 ›› 1993, Vol. 4 ›› Issue (4): 359-363.

• 研究论文 • 上一篇    下一篇

马尾松火力楠混交林凋落物动态及其对土壤养分的影响

张家武1, 廖利平1, 李锦芳2, 苏勇2   

  1. 1. 中国科学院沈阳应用生态研究所, 沈阳 110015;
    2. 广西国营六万林场, 玉林 537025
  • 收稿日期:1993-03-08 修回日期:1993-06-18 出版日期:1993-10-25 发布日期:1993-10-25

Litter dynamics of Pinus massoniana and Michelia macclurei mixed forest and its effect on soil nutrients

Zhang jiawu1, Liao Liping1, Li Jinfang2, Su Yong2   

  1. 1. Institute of Applied Ecology, Academia Sinica,Shenyang 110015;
    2. Liuwan State Forest Farm of Guangxi, Yulin 537025
  • Received:1993-03-08 Revised:1993-06-18 Online:1993-10-25 Published:1993-10-25

摘要: 55年生马尾松火力楠混交林年凋落物总量为6284kg.ha-1,比同龄马尾松纯林增加11.2%,其中叶凋落物量占69.5%.春季马尾松火力楠混交林凋落量占全年总量的32.4%,夏季为19.1%。灌木和草本的年凋落物量在混交林中占凋落总量的3.6%,而在纯林中占18%。和纯林相比,混交林林下土壤养分状况有所改善,土壤有机质含量提高了16.7%。

关键词: 马尾松, 火力楠, 混交林, 凋落物, 土壤养分

Abstract: The annual litter amount of 55 years old Pinus massoniana and Michelia macclurei mixed forest is 6284kg. ha-1, of which, leaf-litter accounts for 69.5%, 11.2% higher than that of same years old pure P. massoniana stand. The amount of litter in mixed forest occupies 32.4% of total in spring, and 19.1% in summer. That of shrubs and herbs in mixed and pure stands is respectively 3.6 and 18% of total. Compared with pure stand, mixed forest has a better soil nutrient status, the content of soil organic matter being increased 16.7%.

Key words: Pinus massoniana, Michelia macclurei, Mixed forest, Litter, Soil nutrient