01),it increased with the development of biological soil crusts,in the following order:sand < algae crust < lichen crust < moss crust.
采用微渗计法对比研究3种生物结皮类型(藻结皮、地衣结皮和苔藓结皮)和自然裸沙对地表凝结水量及凝结水蒸散过程的影响。
Moss crust had higher thickness,hardness,and organic matter and nutrient contents than lichen crust.
结果表明:经过15年的封育保护和植被建设,科尔沁沙地天然植被和人工植被下流动沙地大部分被生物结皮所覆盖,其结皮覆盖度可达60%～80%,厚度1～2cm;在调查的几种植被中,小红柳植被区的土壤结皮厚度、硬度、粘粉粒、有机质和养分含量最高,其次是樟子松林地,杨树林地和冷蒿植被区相对较差;几种植被区的苔藓结皮的结皮厚度、硬度、粘粉粒、有机质和养分含量均优于地衣结皮;与流动沙地相比,结皮下0～5cm土壤的理化特性有明显改善,改善程度苔藓结皮强于地衣结皮,小红柳和樟子松植被区强于杨树林地和冷蒿群丛;土壤结皮及结皮下表土理化特性的变化既受植被覆盖类型的影响,也受制于土壤结皮的发育。
Crustal structure and its tectonic response during Mesozoic and Cenozoic in Beijing-Tianjin-Tangshan and its adjacent region;
京津唐及邻区地壳结构的中新生代构造运动响应
Crustal structure beneath the wide-angle seismic profile between Simao and Zhongdian in Yunnan;
云南思茅—中甸地震剖面的地壳结构
Character of geophysical field and crustal structure of Okinawa Trough and adjacent region;
冲绳海槽及其邻域地球物理场与地壳结构特征
Synthesis of Foot-and-Mouth Disease Virus Empty Capsids in Insect Cells Through Acid-Resistant Modification
通过耐酸性改造在昆虫细胞中组装FMDV空衣壳结构
International Association for Shell and Spatial Structures
国际薄壳结构与空间结构协会
Progress of Simulating Construction for the Structure of Icosahedral Virus Capsids
模拟构筑二十面体病毒衣壳结构的研究进展
Elastic buckling analysis of large span reticulated shell structures
大跨度空间网壳结构弹性稳定性计算
Study on Static and Dynamic Performance of Orthogonal Vierendeel Latticed Shells;
正交空腹网壳结构的静、动力性能研究
Study on Static and Dynamic Performance of Hyperboloid Vierendeel Latticed Flat Shell
双曲空腹扁网壳结构静、动力特性研究
Outdoor unit covering structure of household central air conditioner and energy efficiency
户式集中空调室外机罩壳结构与节能
Three Dimensional Reconstruction of CarMV, IFV Capsids and Cylindrical Inclusion of SrMV Determined by Electron Microscopy
CarMV和IFV衣壳结构、SrMV柱状内含体的电子显微镜三维重构研究
One of the individual subunits that makes up a capsid.
壳粒，衣壳粒构成壳体或衣壳的一个独立的细分单位
Research on Performance-Based Design Theory of Spatial Latticed Shell Structures;
基于性能的空间网壳结构设计理论研究
Study on Design and Performance of Spatial Netlike Shell Strengthened with External CFRP Composites;
CFRP加固空间网壳结构的设计与性能研究
Construction Analysis of Barrel Vaults and Study of Joints of Space Grid Structures;
筒壳施工分析及空间网格结构节点研究
Preparation and Properties of Micro-nanometer Particles with Core/shell and Hollow Structure
微纳米核壳及中空结构粒子的制备与性能研究
Numerical Research of Wind Load Shape Coefficient about Space Reticulated Shell
空间网壳结构风荷载体型系数的数值研究
Dynamic response of a large-space cylindrical reticulated shell under blast loading
大空间柱面网壳结构在爆炸荷载下的动力响应
Preparation and structures of chitosan hollow fiber membranes
壳聚糖中空纤维膜的制备及其结构研究
Summarization of design theory based on performance of spatial latticed shell structures
基于性能的空间网壳结构设计理论研究综述
Analysis on static behavior of ribbed-type open web spherical reticulated shell
肋环型球面空腹网壳结构的静力性能分析