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1.A mixture of decaying organic matter, as from leaves and manure, used to improve soil structure and provide nutrients.
堆肥腐烂有机体的混合物,如树叶或粪便,用来改善结构并增加壤养分收藏指正
2.Arbuscular mycorrhiza (AM), the symbiont of arbuscular mycorrhizal fungi (AMF) and host plant root, has been proved to be able to improve soil structure and enhance the plant resistance to environmental stress.
丛枝菌根(AM)是丛枝菌根真菌(AMF)与植物根系相互作用的互惠共生体,能改良结构,增强植物抗性.收藏指正
3.A good forest structure could improve the even degree and range of distribution obviously, and improve the porosity; ② the fractal dimension (FD) and mean weight diameter (MWD) could sign the soil structure feature objectively.
良好的林分结构能明显提高壤粒径的分布均匀程度与范围,改善壤孔隙状况;②分形维数和重量平均直径能比较客观地表徵结构特徵,是较为理想的结构测定指标。收藏指正
4.In order to reduce earthy material into Yellow River, conserve soil and water, improve local agricultural productivity and protect ecological environment, according to the constructive requirement of the whole group dam program in Tianjia Trench small watershed, a small-size silt storage dam for farmland construction is to be built in Tianjia Trench small watershed to perfect the structure of the Group Dam Progrom.
为了减少入黄泥沙,利用淤地坝建设减轻田家渠小流域沟道水流失危害,除害兴利,改善当地农业生产条件和生态环境,按照坝系工程建设的总体要求,在田家渠小流域布设小型淤地坝,完善田家渠小流域坝系工程建设。收藏指正
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