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- Spatial variability of bulk density and soil water in a small catchment of the Loess Plateau 黄土高原小流域土壤容重及水分空间变异特征
- bulk density and soil water 土壤容重及水分
- The relationship between plants growth and soil physic_ chemical features such as texture, bulk density and compaction, water supply, organic matter and nutrient, soil reaction, salinity and salt base saturation. 从城市土壤的物理化学特征如结构、壤容重和紧实度、市土壤的水分供应、壤有机质与养分含量、壤酸碱度、壤次生盐渍化和盐基饱和度等角度讨论了城市土壤与城市绿化植物生长之间的关系。
- CECs of garden soils in Shanghai ranges between 10 ~ 20 cmol/kg and are significantly correlated with OM, pH, clay content, bulk density and soil aeration, so CEC is a good indicator of soil fertility, nutrient retention capacity and buffering capacity. 上海城市园林土壤的阳离子交换量(CEC)多集中在10~20cmol/kg,与土壤的理化性质:有机质、pH、黏粒含量、体积质量、通气孔隙度都存在极好的相关关系,能够综合反映土壤的肥力水平、保肥能力和缓冲能力。
- EM microbial compost could decrease soil bulk density, increasing soil water content and improving the environment of crop growth. EM微生物堆肥能在一定程度降低土壤容重，增加土壤含水量，改善作物的生长环境。
- Liu W G, Chen Y, Shan L.Effects of soil bulk density on ABA concentration in xylem sap and stomatal conductance of maize (Zea mays L.) plant under different soil water conditions. 刘晚苟;陈燕;山仑.;不同土壤水分条件下土壤容重对玉米木质部汁液中ABA浓度和气孔导度的影响
- THE INFLUENCE OF MINING SUBSIDENCE ON MECHANICAL COMPLSITION, BULK DENSITY AND SOIL POROSITY 风沙土机械组成、容重和孔隙度对采煤塌陷的响应
- The power function relationship between bulk density and suction can be derived from combining Brooks-Corey model with soil linear shrinkage model. 以Brooks-Corey模型和近似线性的土壤收缩特征为基础，推求了规一化容重和吸力间的幂函数关系。
- Crispness, bowl life, water absorbable index (WAI), water soluble index (WSI), bulk density, solid density and expansion ratio were analyzed as the main indexes. 选取脆性、保脆性、吸水率(WAI)、溶水率(WSI)、体积密度、固体密度和膨化度为主要指标进行研究。
- The influence of hydroxyethyl methyl cellulose and vinyl co-polymer on the bulk density and capillary water absorption of hardened cement mortars was studied. 研究了羟乙基甲基纤维素和乙烯基共聚物2种聚合物干粉对硬化水泥砂浆体积密度和毛细孔吸水率的影响。
- Crispness, bowl life,water absorbable index(WAI),water soluble index(WSI),bulk density,solid density and eypansion ratio were analyzed as the main indexes. 选取脆性、保脆性、吸水率(WAI)、溶水率(WSI)、体积密度、固体密度和膨化度为主要指标进行研究。
- Then the changes of the soil bulk density and the resistan ce of plough draft under different treatments were measured and the tractor ener g y consumptions were calculated. 一般情况下，小拖的压实深度在耕层以内，可以通过耕翻土壤加以消除，而大型机器产生的压实将会在耕层以下形成积累。
- The content soil available N, P and K and soil bulk density of vineyard in Dough and kaleyard in Beichen were analyzed in order to enhance crop yield and quality. 摘要为了提高作物的产量和品质，做到配方施肥，采集了天津市东丽地区葡萄园和北辰区菜园土壤样本，测定了土壤速效氮、速效磷、速效钾的含量以及土壤容重。
- The bulk density and specific gravity of surface soil in P. massoniana forest land was largest, followed by bush forest land, that of natural evergreen broad-leaved forest land was smallest. 表层土壤容重和比重马尾松林地为最大，灌木林地次之，天然常绿阔叶林地最小；
- Crispness, bowl life, WAI, WSI, bulk density, solid density and expansion ratio were analyzed as the main indexes. 选取脆性、保脆性、WAI、WSI、体积密度、固体密度和膨化度为主要指标进行研究。
- The experimentresults show that the microwave loss of BMT ceramic mainly depends on its B-site ion ordering pa-rameters, bulk density and homogenous microstructure. 实验结果表明，BMT陶瓷的微波损耗主要与其密度、有序度和微观结构的均一度有关。
- The effects of the type of intercalating agent, intercalating time and temperature for expansion on bulk density and integrity of the monoliths were investigated. 研究了插层剂、插层时间和膨化温度对膨胀石墨块体积密度和外形完整程度的影响。
- A Study of Effects of the Concrete Mulch on Movement of Soil Water and Soil Heat Transfer. 硬覆盖对土壤水热传输及作物生长发育影响的试验研究。
- Natural flake graphite of laminated structure is aeolotropic, and it is difficult to press spherical fuel element because of low bulk density and tap density of graphite micro-powder. 天然鳞片石墨为层状结构呈各向异性,且天然鳞片石墨微粉的松装密度和振实密度太低,不利于球形燃料元件的压制。
- Research on relationship between crop drought and soil water retention and supply characters in hilly red clayey soil. 低丘红壤作物易旱与土壤持水供水特性的关系。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
