不同植物带地埂土壤抗侵蚀效果研究  

Anti-Erosion Effects of Ridge Soil with Different Vegetation Zones

作　　者：刘明义[1] 许晓鸿[1] 刘艳军[1] 隋媛媛[1] 张瑜[1] 王永丰[1] 

机构地区：[1]吉林省水土保持科学研究院,吉林长春130033

出　　处：《中国水土保持》2012年第7期43-45,75,共3页Soil and Water Conservation in China

摘　　要：采用野外调查与室内试验相结合的方法,对研究区坡耕地3种不同地埂植物带上的植物生长状况、土壤物理化学性状及土壤崩解速率进行了测定,研究了不同植物带地埂土壤的抗侵蚀效果。结果表明:黄花菜与红小豆混种能够促进地埂植物带上植物地上和地下部分生长,增强植物护埂、固埂作用;不同植物带地埂土壤容重随土层深度的增加而增大,土壤孔隙度、含水量和有机质含量随土层深度的增加而降低;黄花菜、红小豆及黄花菜与红小豆混种植物带地埂土壤孔隙度、含水量及有机质含量均高于对照裸埂,土壤容重低于裸埂,黄花菜地埂土壤孔隙度最好,黄花菜与红小豆混种地埂土壤保水保肥性最好;不同植物带地埂土壤崩解速率随土层深度的增加而增大,黄花菜与红小豆混种地埂土壤抗崩解、抗侵蚀性能最强,是适合东北低山丘陵区坡耕地水土流失防治的良好措施。The paper determined the conditions of plant growth,physical and chemical properties and disintegration rate of soil of three different ridge vegetation zones in study area and studied the effects of anti-erosion of ridge soil with different ridge vegetation zones by using the method of combining field survey with indoor tests.The outcomes show that: a) the mixed planting of Hemerocallis citrina and Vigna angularis can promote the growth of aerial and underground part and enhance the functions of ridge protection and consolidation;b) the soil bulk density of ridge with different vegetation zones increases along with the increase of soil depth and the soil porosity,moisture content and the content of organic matter decrease along with the increase of soil depth;c) the soil porosity,moisture content and the content of organic matter of Hemerocallis citrina,Vigna angularis and mixed planting of Hemerocallis citrina and Vigna angularis of ridge vegetation zones are all higher than that of checked bare ridge,the soil bulk density is lower than that of bare ridge,the soil porosity of ridges planting with Hemerocallis citrina is the best and the functions of preserving moisture and fertility of ridges mixed planting Hemerocallis citrina with Vigna angularis are the best and;d) the disintegration rate of ridges with different vegetation zones increases along with the increase of soil depth.The functions of anti-disintegration and anti-erosion of ridges growing with mixed Hemerocallis citrina and Vigna angularis is the greatest which is a good measure for soil and water loss prevention and control of low mountains and hills area of Northeast China.

关 键 词：地埂植物带 土壤 抗蚀性 崩解速率 东北低山丘陵区 

分 类 号：S157.1[农业科学—土壤学]