Bacteria and fungi are other important soil organisms . 细菌和真菌是另一类重要的土壤有机体。
Earthworms and other essential soil organisms are extremely susceptive to cadmium poisoning 蚯蚓和其他主要的土壤生物都非常容易镉中毒。
In farmland ecosystems , soil organisms are main regulators in the decomposition , nutrient mineralization and other ecological processes of soil 在农田生态系统中,土壤动物是分解作用和养分矿化作用等生态过程的主要调节者。
The food web in soil , with two types of detrital food chain and predator food chain , is defined as a relationship of resource and consumer formed by functional groups of soil organisms 摘要土壤食物网可定义为不同功能土壤生物类群之间形成的消费者资源关系网络,包括腐食食物链和捕食食物链。
This paper gives a brief review of four stabilization mechanisms of soc : ( 1 ) recalcitrance of organic carbon compounds , ( 2 ) interactions with metal oxides and soil mineral surfaces , ( 3 ) spatial inaccessibility against decomposers because of micro - aggregate ' s physical protection , and ( 4 ) biological mechanisms , mainly the direct contributions of soil organisms themselves 土壤有机碳的稳定机制主要包括: ( 1 )有机碳的难降解性; ( 2 )金属氧化物和粘土矿物与有机碳的相互作用; ( 3 )土壤团聚体的物理保护导致的生物与有机碳空间隔离; ( 4 )土壤生物学机制,主要指土壤生物自身对有机碳稳定性的直接贡献。
Eng . ) we teach soil definition , soil classification , soil architecture and physical properties , soil aeration and temperature , soil colloids , soil acid , alkalinity and salinity , soil organisms , soil organic matter , nitrogen and sulfur economy of soils , soil phosphorus , potassium and micronutrients , practical nutrient management 中)主要讲述土壤的基本定义,土壤的化育、生成与分类,土壤的物理、化学与生物特性,土壤的通气与温度,土壤胶体特性,土壤的酸性、碱性和盐性,土壤中的元素,土壤管理等。
To arouse concerns among the scientific community over relationship of organic farming with farmland biodiversity , a review is presented of the effects of organic farming on species richness , abundance and diversity of weeds , epigeic arthropods , soil organisms and birds in the farmland ecosystem 为了促进我国科学界对有机农业与农田生物多样性关联性研究的关注,综述了有机农业对农田生态系统内杂草、地表节肢动物、土壤生物以及鸟类等不同生物类群种类、数量及其多样性的影响。