The concept of leaf area index(LAI) is introduced into a urban street layer(USL) model to simulate the windbreak effects of a small-sized green belt on the wind environment in USL.
在城市街谷模式的基础上引入叶面指数,对小型林带的防风效应进行模拟、检验,通过实验结果与野外观测值的比较,证明此模式能较为合理的模拟防护林的动力遮蔽效应;将此模式应用于小型绿化带对高大建筑物周围风环境的影响的数值模拟,数值实验证明在城市冠层内,城市小型绿化带对高大建筑物周围行人高度的风场环境影响显著,设置合理的小型绿化带对城市高大建筑物附近风场有良好的改善效果。
Changes in diversity of culturable microorganisms on leaf surface of transgenic Bt cotton;
转Bt基因抗虫棉叶面可培养微生物多样性的变化
Relation between specific leaf areas and leaf nutritent contents of plants growing on slopelands with different farming-abandoned periods in the Loess Plateau;
黄土高原不同退耕年限坡地植物比叶面积与养分含量的关系
Photosynthesis in relation to leaf nitrogen,phosphorus and specific leaf area of seedlings and saplings in tropical montane rain forest of Hainan Island,South China;
海南岛热带山地雨林幼苗幼树光合与叶氮、叶磷及比叶面积的关系
Concentrations of PAHs in leaves of six dominant species in the Pearl River Delta of South China were determined with gas chromatography and mass spectrometry(GC-MS),and synchronously leaf-lipid contents,leaf areas,specific leaf areas(SLA) were measured.
应用气相色谱-质谱联用方法测定了珠江三角洲地区6种主要树种叶片多环芳烃(PAHs)的含量,并对相应的叶脂含量、叶面积、比叶面积进行了测定,探讨了叶片PAHs含量特征和种间差异的影响因素。
Biomonitoring atmospheric sulfur dioxide using urban tree leaves and foliar dusts in Huizhou, Gongdong province;
惠州绿化乔木叶片及其叶面降尘对大气SO_2污染的生物监测
Particulate size and heavy metal accumulation in foliar dust from urban vegetation in rapidly developing cities;
经济快速发展区域的城市植被叶面降尘粒径和重金属特征
)Corner and Bauhinia blakeana) leaves and their foliar dust in nine sampling sites in different urban areas were determined by ICP-AES.
用ICP-AES测定了惠州市不同功能区的典型绿化树种大叶榕和紫荆叶片及其叶面降尘的重金属含量。
ICP-AES Determination of B,Cu,Fe,Mn,Mo and Zn in foliar fertilizer;
ICP-AES法测定叶面肥中硼、铜、铁、锰、钼和锌
Effect of foliar fertilizer on growth of rapeseed seedlings;
叶面肥对苗期油菜生长特性的影响
Effects of solid water and foliar fertilizer on afforestation survival and growth of seedlings in sand preventing and controlling.;
固体水、叶面肥在防沙治沙抗旱造林中对苗木成活及生长的影响