欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 1998, Vol. 9 ›› Issue (2): 155-158.

• 研究论文 • 上一篇    下一篇

红壤坡地不同土地利用方式土壤侵蚀的时空分布规律研究

杨武德1, 王兆骞1, 眭国平2, 陈宝林2, 徐锴2, 张克中3, 边卓平3   

  1. 1. 浙江农业大学农业生态研究所, 杭州310029;
    2. 上海测试技术研究院中子活化分析室, 上海200233;
    3. 浙江省德清县气象局和农业局, 德清313202
  • 收稿日期:1997-08-06 修回日期:1997-10-21 出版日期:1998-03-25 发布日期:1998-03-25
  • 基金资助:

    FAO/UNDP亚太区域项目(RAS93-062)

Temporal and spatial distribution of soil erosion on red soil slope field under different land use patterns

Yang Wude1, Wang Zhaoqian1   

  1. Agroecology Institute, Zhejiang Agricultural University, Hangzhou 310029
  • Received:1997-08-06 Revised:1997-10-21 Online:1998-03-25 Published:1998-03-25

摘要: 应用定位土芯Eu(Europium)示踪新方法,研究红壤坡地不同土地利用方式下土壤侵蚀的时空分布规律.结果表明,新方法对以片蚀和细沟侵蚀为主的红壤坡地是适用的;土壤侵蚀的时间分布与降雨量的年时间分布相一致,过程性暴雨期表现为全年土壤侵蚀的高峰期;在复合坡面,随坡面的陡、缓、凹,土壤侵蚀表现强、弱、沉积;相同坡度和坡长条件下,幼龄板栗园的土壤侵蚀速率>雷竹园>稀疏马尾松林地>茶园.

关键词: 土壤侵蚀, 时空分异, 红壤坡地, 定位土芯Eu示踪法

Abstract: Anew method of Fixed Soil Core Eu Tracer was founded to investigate the temporal and spatial distribution of soil erosion on red soil slope field under different land use patterns. The results show that the new method is applicable for red soil slope fields, on which, sheet and thin-gully erosion are the main erosion forms. The temporal distribution of erosion was consistent with that of yearly rainfall, and the processing rainstorm period was the peak period of soil erosion in the whole year. On compound slope field, the soil erosion displayed strong, week and depositional on steep, gentle and concave slopes, respectively. At same slope degree and length, the soil erosion rate was decreased with the order of young chestnut garden>bamboo field>sparse masson pine forest land>tea garden.

Key words: Soil erosion, Temporal and spatial distribution, Red soil slope field, Fixed soil core Eu tracer