由于研究区是我国北方典型的农牧交错带，其生态系统脆弱且有着显著的敏感性。
The study area is typical of northern China ecotone and this study area ecosystem is vulnerability and sensitivity of the significant.
近年来，利用植物的化感特性达到对农牧业生态系统中杂草的有效控制已被广泛研究和应用。
In recent years, effective weed control by allelopathy characteristics of plants in agricultural and animal husbandry ecosystem has been studied and applied widely.
应用推荐