摘要
试验采用野外调查采样与室内分析相结合的方法,对陕蒙沙漠高速公路沿线土壤水分动态变化进行了研究,结果表明:(1)路堤和路堑式边坡的土壤水分变化为0-150 cm路堑式边坡>路堤式边坡;150 cm以下路堤式边坡>路堑式边坡。(2)路堤和路堑不同坡向的土壤水分变化:0-120 cm路堤半阳坡>半阴,120 cm以下半阴坡>半阳坡;0-140 cm路堑半阳坡>半阴坡,140 cm以下半阴坡>半阳坡。(3)公路边坡不同坡位的土壤水分变化:下坡位>中坡位>上坡位。(4)不同植被类型的土壤水分变化:农田>乔木林地>灌木地。根据陕蒙沙漠高速公路沿线土壤水分动态变化研究结果,指出公路沿线不同地段较合理的绿化树种。
Soil moisture changes are studied using the combination of field survey sampling and room analysis along the desert highway between Shaanxi and Inner Mongolia.The results indicated：（1） soil moisture changes 0-150 cm cuts the type side slope 〉 the embankment type side slope,The 150cm following embankment type side slope 〉 cuts the type side slope.（2） embankment and cuts the soil moisture change which the different slope approaches： 0-120 cm embankment half sunny slope 〉 half cloudy,120cm following half shady side of a slope 〉 half sunny slope,0-140 cm cuts half sunny slope 〉 half shady side of a slope,the 140cm following half shady side of a slope 〉 half sunny slope.（3） Road side slope different slope position soil moisture change： Downhill position 〉 slope position 〉 uphill position.（4） Different vegetation type soil moisture change： Farmland 〉 tree forest land 〉 bush place.According to dynamic change of soil moisture along the highway from shaanxi to Inner Mongolia,different land sector reasonable planted tree species are pointed out the road along the highway.
出处
《水土保持研究》
CSCD
北大核心
2008年第4期255-257,共3页
Research of Soil and Water Conservation
基金
陕西省交通厅项目(05HX01)
陕西省教育厅项目(07JK443)
榆林学院高学历人才科研项目(06GK011)
榆林学院校内项目(06YK027)
关键词
陕蒙高速公路
植被类型
土壤水分
Shaanxi-inner Mongolia highway,vegetation type,soil moisture
