欢迎访问林业科学,今天是

林业科学 ›› 1999, Vol. 35 ›› Issue (zk): 29-33.

• 水土流失监测 • 上一篇    下一篇

马尾松幼龄林地水土流失的研究*

秦国峰1,荣文琛1,金国庆1,洪炜2   

  1. 1. 中国林业科学研究院亚热带林业研究所 富阳 311400
    2. 中国林业科学研究院亚热带林业实验中心 分宜 336600
  • 出版日期:1999-01-01 发布日期:1999-09-25

A STUDY ON SOIL EROSION IN MASSON PINE YOUNG STAND

Guofeng Qin1,Wenchen Rong1,Guoqing Jin1,Wei Hong2   

  1. 1. The Research Institute of Subtropical Forestry, CAF Fuyang 311400
    2. The Experimental Center of Subtropical Forestry, CAF Fenyi 336600
  • Online:1999-01-01 Published:1999-09-25

摘要:

在马尾松造林后的4年内,设置径流小区对林地水土流失进行定位观测。结果表明:不同造林整地方式的林地水土及其养分流失量,第1年最大,全垦林地径流量1049.70 t/hm2、土壤流失量5.35 t/hm2、径流养分流失量12.91 kg/hm2、土壤养分流失量410.44 kg/hm2;穴垦林地分别为921.20 t/hm2、5.79 t/hm2、10.80 kg/hm2、467.93kg/hm2;荒坡地分别为1195.50t/hm2、2.87 t/hm2、8.96 kg/hm2、200.05kg/hm2。第2 ~ 4年流失量依次降低。3种整地方式均以第1年流失最严重、第4年流失很轻微,第2、第3年全垦>穴垦>荒坡,流失量较轻。观测结果可为马尾松速生丰产林营建与地力维护的方案制定提供依据。

关键词: 马尾松, 人工幼林, 环境监测, 水土流失

Abstract:

The 4-year-old masson pine stand was monitored on soil erosion in runoff plots.The results indicated :The water, soil and nutrient loss of forest lands with different site preparation overall-site preparation or hole site preparation was biggest in the first year, 1049.70 t/hm2(runoff), 5.35 t/hm2(soil loss), 12.91 kg/hm2(nutrient runoff) and 410.44 kg/hm2(soil nutrient loss) in the full site preparation plots, 921.20 t/hm2, 5.79 t/hm2, 10.80 kg/hm2 and 467.93 kg/hm2 respectively in the hole site preparation plots 1195.50 t/hm2, 2.87 t/hm2, 8.96 kg/hm2 and 200.05 kg/hm2 respectively in CK.The runoff loss was reduced year by year from the second year to the fourth year.The runoff loss of plots prepared with 3 types was serious in the first year and light in the fourth year, the runoff loss in the second and third year followed the order:overall site preparation >hole site preparation >CK.All these monitoring results provided a solid base for fast-growing and high-yielding stand establishment and soil fertility conservation.

Key words: Masson pine, Young stand, Environment monitor, Soil and water losses