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forest bed
相关语句
  相似匹配句对
     forest .
     林。
短句来源
     Forest Trends
     森林趋势组织
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     CHANGING THE BED
     2岁 你好! 新床
短句来源
     The New Bed
     新床
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  forest bed
Analysis of a 3.5 m vibracore from the Olson buried forest bed in the southern Lake Michigan basin provides new paleolimnological data for the early Holocene.
      
An early Holocene oxygen isotope record from the Olson buried forest bed, Southern Lake Michigan
      
From the beginning of April to the end of September forest bed's humidity is measured and monitoring from air is often performed.
      
An example of that may be a LEAF equipped with IntelliMap, giving information about local air pollution or warning about low forest bed humidity.
      


Three Submodel for water storage ,evaporation and diffusion in branches and leaves,moisture ef-fects of interface are discussed here. Variation of corow canopy and water storage ratio with precipitationamount are simulated with decreasing exponentail equation from which water storage computation equation ina certain period is derived.With dispersed triplex evaporation and diffusion model and moisture transfer equa-tion,process of evaporation and diffusion in a basin is simulated.In the basin hydrological model,four...

Three Submodel for water storage ,evaporation and diffusion in branches and leaves,moisture ef-fects of interface are discussed here. Variation of corow canopy and water storage ratio with precipitationamount are simulated with decreasing exponentail equation from which water storage computation equation ina certain period is derived.With dispersed triplex evaporation and diffusion model and moisture transfer equa-tion,process of evaporation and diffusion in a basin is simulated.In the basin hydrological model,four mois-ture effect interfaces,that is superficial,shallow,deep and subsurface,are set up along the perpendicular sec-tion of forest bed.With basis on infiltration equation,runoff yield of precipitation and verious components ofheadwater are computed.TotaI inflow of river network for verious headwater components is simutlated bylinear storage and discharge equation.

本文主要论及枝叶截蓄,蒸散发和界面水分效应三个了模型。采用递减指数方程模拟林冠截蓄比随降水量的变化过程,导出时段截蓄量计算方程。采用分散式的三层蒸散发模型和水分传递方程,模拟流域蒸散发过程。本流域水文模型中,沿林床垂向剖面设置地表界面、浅尾界面、深层界面和下界面四个水分效应界面,以入渗方程为基础,计算降水产流量、各水源分量。至于各水源分量的河网总入流,则用线性蓄泄方程模拟。

Analysis on relations and influence factor of climate factor and soil moisture content in coastal bedrock demonstrated that soil moisture content had difference in various forest stands, relative evidence between climate and forest stand soil moisture content were as follows: wasteland>Pinus elliottii stand>Liquidambar formosana×Pinus elliottii stand>Myrica. The first influence factor of climate on soil moisture content was temperature, then precipitation. Under the site condition of coastal bedrock,forestation...

Analysis on relations and influence factor of climate factor and soil moisture content in coastal bedrock demonstrated that soil moisture content had difference in various forest stands, relative evidence between climate and forest stand soil moisture content were as follows: wasteland>Pinus elliottii stand>Liquidambar formosana×Pinus elliottii stand>Myrica. The first influence factor of climate on soil moisture content was temperature, then precipitation. Under the site condition of coastal bedrock,forestation of W.rubra forest and mixed forest bed advantage for increasing water conservation capacity of site soil.

探讨了气象因子与沿海基岩海岸土壤水分的相关性及影响因子。结果表明:①不同林分土壤含水率存在差异,气象因子与各林分土壤水分相关显著性出现频度排序为荒地>湿地松>枫香×湿地松>杨梅,而影响各林分土壤含水率的第1主气象因子为气温,其次为降水量;②沿海基岩海岸立地件下,营造杨梅林和混交林对于提高立地土壤的水源涵养性能具较大的优越性。

A comparison between the Nihewan mammalian fauna (s. s.) and those of the Villafranchian age in Europe was carried out based on 20 commonly shared mammals at generic and/ or specific level. Eleven of them (Vulpes sp., Canis chihliensis, C. c. palmidens, C c. minor, Ursus of. U. etruscus, Pachycrocuta licenti, Chasmaporthetes of. C ossifragus, Megantereon nihowanensis, Homtherium cf. H. crenatidens, Sus sp. Eucladoceros boulei) show close morphologic similarity with corresponding forms of the Olivola fauna. Four...

A comparison between the Nihewan mammalian fauna (s. s.) and those of the Villafranchian age in Europe was carried out based on 20 commonly shared mammals at generic and/ or specific level. Eleven of them (Vulpes sp., Canis chihliensis, C. c. palmidens, C c. minor, Ursus of. U. etruscus, Pachycrocuta licenti, Chasmaporthetes of. C ossifragus, Megantereon nihowanensis, Homtherium cf. H. crenatidens, Sus sp. Eucladoceros boulei) show close morphologic similarity with corresponding forms of the Olivola fauna. Four forms (Nyctereules sinensis, Lynx shansius, Pseudodama elegans, Megalovis piveteaui) are to be compared with their counterparts of Seneze fauna based on different grounds. Nyctereutes megamastoides became extinct after Seneze, while Megalovis was found in Europe only in Seneze. Lynx shansius and Pseudodama elegans are truly closer to their counterparts in the Seneze fauna than in Olivola. The Olivola lynx, Lynx issiodorensis, minima, became reduced in general body size, while that of the Nihewan fauna did not The Olivola Pseudodama nestii is certainly more advanced in character than its counterpart in Nihewan, Pseudodama elegans. Two forms (Meles chiai and Borsodia chinensis) are, at least not opposite to the possibility to compare the Nihewan with Olivola. Although Meles thorali from Saint Vallier is the only record in the European Villafranchian, it is ceylonly more primitive in general evolutionary level than M chiai of the Nihewan fauna. On the other hand, Borsodia newtoni, which is generally considered the form most closely related to the Chinese one, ranges from Seneze to Forest beds. Three forms are not very useful in phylogenetic analysis: Sivapanthera pleistocaenus (probably a new species), Equus sanmeniensis, and E. teilhardi. If the above comparison proves tenable, the base of the Nihewan fauna will be coincident with the late Villafranchian, and consequently with the Q/N boundary defined at the Vrica marine section and the top of C2n (= Olduvai) in the astronologically calibrated GPTS, which is dated l.796Ma.

对泥河湾动物群(狭义)与欧洲维拉方经典动物群中属级相同的20种哺乳动物进行形态和进化水平上的对比发现,其中有11种(包括亚种)和晚维拉方期的 Olivola动物群的成员最接近,有4种可与中维拉方晚期的Seneze动物群的成员比较,其中有2种因为仅发现于Seneze,不足以说明它们一定只和泥河湾者接近。另外两种(Lynx shansius和Pseudodamaelegans)确实和Seneze者更接近而不同于Olivolaa者。有两种动物(Borsodia chinensis和Meles chiai)间接地表明泥河湾动物群可能和 Olivola更接近。还有 3种时代意义不大。总之,对比表明泥河湾动物群(狭义)与欧洲晚维拉方早期的Olivola动物群最为接近,其年代应为18Ma左右,接近于海相Vrica剖面更新世/上新世界线(1.796Ma)。

 
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