摘要
为了探索风沙地区退化土地开发治理的新途径 ,中国三北 0 0 9项目办公室 ,在通辽市莫力庙乡选设了试验示范区。试验结果表明 ,通过土地围封、营造防护林、实行农田少耕、留茬与覆盖等措施 ,使自然植被由 60 %提高到 83.3% ;玉米留秸杆农田的风速降低 2 1 % ;小麦留高茬农田 ,在冬春季地温提高 0 .3℃ ,土壤含水率提高 0 .9% ;玉米的产量提高 4 8% ,农业的产投比为 1 .83,经济效益达 61 8元 / hm2 。
In order to explore new ways to develop and manage degenerated land in sand region, the experimental demonstration district has been set up in Molimiao, Tongliao by Office of 009 Project, ThreeNorth. The results show: natural vegetation has increased from 60% to 83.3% through such measures as enclosing land, building protectioe forest, lotillage, stubble and imbedding in farmland. With these measures, wind speed in farmland of leaving corn straws dropped 21%. The ground temperature in winter and spring have increased 0.3℃ in farmland of leaving high wheat stubble. The soil moisture content has increased 48%. The inputoutput ratio is 1.83. The economic effect is 0.18 yuan/hm 2.
出处
《内蒙古林业科技》
2001年第1期24-26,共3页
Journal of Inner Mongolia Forestry Science and Technology
