摘要： 对内蒙古阴山北麓旱农区不同类型耕地土壤风蚀及其影响因素的野外观察与室内分析,揭示了该地区风蚀气候侵蚀力的特点及风蚀作用对农田生态环境的主要危害.观察研究了粮草、粮薯和灌草带状间作及其残茬覆盖度对减轻农田土壤风蚀的作用,指出在农田防护林不完善的阴山北麓旱农区,采用带状留茬间作轮作具有良好生态效应,可以有效地控制农田风蚀沙化,减轻风蚀危害,进而明确了不同类型退化农田应采用的带状留茬间作轮作方式与增产增收配套技术措施.
关键词:
干旱区土壤,
带状留茬间作,
风蚀作用,
生态效应
Abstract: Characters of climatic potential of wind erosion and which effects on field environment have been revealed based on observation and analysis of field wind erosion and its effective factors in different soil patterns in dryland farming area of the north foot region of Yinshan mountain, Inner Mongolia. The effects of different types of strip intercropping, cereals with grasses, cereals with potato, and bush with grasses as well as stubble cover, on reducing wind erosion were observed and studied. It is pointed that there are better effects of strip intercropping on controlling wind erosion in dryland farming areas of the north foot region of Yinshan mountain where windbreak forest is difficult to plant. And the reasonable patterns of strip intercropping in different degraded fields and the series techniques of increasing yield have been made clear.
Key words:
Arid soil,
Strip intercropping keeping stubble,
Wind erosion,
Ecological effect
中图分类号:
妥德宝, 段玉, 赵沛义, 郑大玮, 陈铭, 赵举. 带状留茬间作对防治干旱地区农田风蚀沙化的生态效应[J]. 华北农学报, 2002, 17(4): 63-67. doi: 10.3321/j.issn:1000-7091.2002.04.014.
TUO De-bao, DUAN Yu, ZHAO Pei-yi, ZHENG Da-wei, CHEN Ming, ZHAO Ju. Ecological Effect of Intercropping Strips Keeping Stubble on Preventing Field from Wind Erosion in Dryland Farming Areas[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(4): 63-67. doi: 10.3321/j.issn:1000-7091.2002.04.014.