黄土丘陵区软埂梯田埂坡种草与土壤性状研究  

Planting Grass on Soft Ridge of Fieldand Its Effects on Soil Physical and Chemical Propertiesin Loess Hilly-gully Region

作　　者：曹世雄[1] 段岁芳 陈莉 高旺盛[1] 

机构地区：[1]中国农业大学农学院区域农业发展研究中心,北京100094 [2]延长县农业技术推广站,陕西延长717100 [3]延安市水土保持研究所,延安716000

出　　处：《干旱区资源与环境》2005年第6期133-136,共4页Journal of Arid Land Resources and Environment

基　　金：国家重点基础研究发展规划项目(G2000018606);"十五"国家科技攻关课题"区域农业协调持续发展战略研究"项目

摘　　要：该项研究以黄土高原丘陵沟壑区为背景,选择“接近自然”的技术对坡改梯进行了技术改进,在工程方面设计采用接近黄土自然休止角40-45°为梯田埂坡设计坡度,通过对土壤物理性状的监测和种植实验,初步筛选出3种适宜在埂坡面种植的牧草和作物品种。Based on the research in loess hilly--gully region, we selected the technology of “nature” for changing sloping field to terrace. The gradient of terrace was designed to 40--50 which closed to loess nature caesura angle in engineering design. Then we planted many kinds of grasses in the terrace, through observing the soil physical properties and testing grass, which suit to grow on the soft ridge of field the grass growth, we firstly select three types of in loess terrace.

关 键 词：黄土丘陵区 软埂农田 地埂坡面 人工种草 理化性状 

分 类 号：S157.32[农业科学—土壤学]