土壤热通量

随着叶面积指数（LAI）的增加，土壤热通量与净辐射之比，由返青初期的0.13迅速下降，直至较为稳定的0.06。

The experiments identify that with the increasing of LAI , the ratio of soil heat flux to net radiation decreases from 0 13 in the jointing to 0 06 in the milking .

在0.5h尺度上，表层土壤热通量与2.5h前的冠层净辐射回归方程相关性最好，达极显著水平，说明鼎湖山针阔混交林土壤热通量对冠层净辐射的反馈要延滞约2.5h。

Significant correlations between the surface soil heat flux and net radiation above the canopy measured 2.5 h earlier were found , suggesting that response of the soil heat flux to the net radiation above the canopy could lag 2.5 h.

表层土壤热通量对冠层净辐射的反馈延滞约2.5h，而5cm深度处土壤热通量则延滞3.5h，同时净辐射与表层土壤热通量的相关性更为密切。

The feedback of the surface soil heat fluxes lagged 2.5 h behind the net radiation , while the soil heat fluxes at 5 cm depth lagged 3.5 h. The soil heat fluxes of the surface soil were more closely related to the net radiation .

较大土壤热通量对应于较低的土壤水含量。

Higher soil heat flux correspond to lower soil water content .

冷型小麦灌浆期农田土壤热通量的分析

A study on soil heal flux of cold type wheat during filling stage

土壤热通量密度的比例只占净辐射的5%左右。

The soil heat flux content is only 5 % of the net radiation .

棉田土壤热通量的计算

Calculation of soil thermal flux in cotton field

该计算方案可同时计算出土壤热通量随时间和随深度的变化。

This project can calculate the changes of the soil heat flux with time and depth simultaneously .

谐波法与双源模型耦合估算土壤热通量和地表蒸散发

Coupling of the Harmonic Analysis Method and Two-Source Energy Model to Estimate Soil Heat Flux and Evapotranspiration

土壤热通量也存在明显的日变化，但是变化幅度相对比较小。

The diurnal variation of soil heat flux is also obvious , but the magnitude of the change is relatively small .

土壤热通量日变化在拔节孕穗期后与净辐射变化趋势类似；

Trend of Latent heat changing is along with the net radiation , but daily change of sensible heat reverses with net radiation .

土壤热通量在地表能量交换中扮演着重要角色，干旱半干旱区土壤热通量更加重要。

Soil heat flux plays an important role in energy flux exchange between land and atmosphere , especially in arid and semi-arid region .

在秋冬季节，土壤热通量基本处于负值而春夏则刚好相反。

In addition , most values of soil heat flux are negative in autumn and winter season , and positive in spring and summer .

尤其全球变化、区域水分平衡、碳平衡和区域旱灾预报等等都需要定量的地表通量信息（辐射通量、显热通量、潜热通量、土壤热通量）。

Especially , global transformation , the water balance , carbon balance and drought forecast in district , etc , which all require quantitative surface flux .

这表明森林通过降低地表反射率和表面温度，不仅增加地表净辐射，而且减少其用于感热和土壤热通量的消耗。

It is showed that the forest can not only increase net radiation but also decrease sensible and soil heat fluxes by decreasing surface reflectance and temperature .

综合了湍流测量及辐射测量、土壤热通量的观测结果的估计对陆面&大气相互作用进行了详细的描述，以适应模式的发展。

The estimation with turbulence measurement together with the measurement of radiation and soil heat fluxes give detailed description of land surface-atmosphere interaction suitable to model development .

在8月潜热通量占能量支出量的62.85%，感热通量占32.85%，土壤热通量占4.44%。

The latent heat flux , 62.85 percent of total energy ; and sensible heat flux , 32.85 ; while the soil heat flux , 4.44 in August .

林分的植被贮热通量和林地土壤热通量分别为净辐射的2.5%和8%。

The heat fluxes stored in plant , Jp , and in soil , G , were about 2.5 % and 8 % of net radiation , respectively .

对土壤热通量的参数化方法和拖曳系数的取值问题进行了讨论，更完善的方法还有待于与实验测量工作相结合。

The parameterization for the soil heat flux and the surface drag coefficient are discussed , and the more perfect method needs to combine further with measure experiments .

通过各辐射分量和感热、潜热与土壤热通量的特征分析，研究能量收支的基本状况，并讨论了造成显著能量不平衡的原因。

Additionally , the characteristics of various components of radiation , sensible heat , latent heat and soil heat fluxes are analyzed in detail , followed by energy budget study .

结合辐射和土壤热通量观测资料揭示了两站的地面热量平衡状况，用地面热量平衡方程对以上结果进行了闭合误差检验。

The surface heat balance is discussed by involving the observational data of radiation and soil heat transfer , and the closed test of the surface heat balance equation is made .

土壤热通量、显热通量以及潜热通量的季节变化基本表现为冬季最小，其次是秋季，夏春两季最大；

The seasonal variation of soil heat flux , palpable heat flux and latent heat flux appears to be the smallest in winter , and the largest in summer and spring .

热量平衡的各分量中，潜热通量占净辐射的比值最大，湍流热通量和土壤热通量均较小。

Among all component values of heat balance , the latent heat flux occupies the highest proportion from net radiation , both turbulence heat flux and soil heat flux occupy lower .

太阳总辐射、太阳净辐射、潜热通量和土壤热通量的日变化曲线在三种典型天气情况下都是典型单峰型；显热通量的日变化曲线规律不明显；

The diurnal change curve of the solar radiation , solar net radiation , latent flux heat and the soil flux heat is the typical unimodal sort under three different weather conditions .

在黄土高原半干旱地区：白天，潜热通量在净辐射通量的分配中所占的份额最大，其次为感热通量，土壤热通量最小。

In loess plateau , at the daytime , the net radiation contributes mainly to the latent heat flux , the sensible heat flux is minor and the soil heat flux is least .

对比结果表明：（1）当模式低估净辐射0.2%时，模式分别高估感热、潜热和土壤热通量4%、13%和8%；

Results show that : ( 1 ) SiB2 overestimated sensible , latent , and soil heat fluxes by4 % , 13 % , and8 % respectively when it underestimated net radiation by0.2 % ;

通过反演地表反照率、地表温度、地表比辐射系数等参数，进一步计算出地表净辐射通量、土壤热通量、显热通量，根据地表能量平衡方程进行了蒸散的遥感反演；

Firstly , the remote sensing method based on surface energy balance equation which is a function of net radiance flux , soil heat flux , sensible heat flux and latent heat flux is used to retrieve ET.

蒸散耗热和湍流热交换占净辐射收入的86.2%，平均波文比为0.5500，土壤热通量约占净辐射收入的13.4%。

The flux of evapotranspiration and turbulent heat exchange are 86.2 % of the net radiation of the stand on average . The mean Bowen ratio is 0.5500 . The energy consumed by soil heat exchange is 13.4 % .

晴天间作系统土壤热通量比单作系统高21.8%，阴天时比单作系统低25.0%。（2）其内的空气温度、土壤热通量等热力参数比林内旷野有所增加；

The soil heat flux increased by 21.8 % in a clear daytime , and decreased by 25.0 % in a overcast daytime . that the air temperature and the soil heat flux were higher than those out of the forest farmland ;

随着荒漠化程度的加深，生态系统反射率增加，净辐射减少，而且热量平衡中感热通量和土壤热通量所占比例增加，而潜热通量比例减小。

With desertification becoming · more serious , while the albedo rate is to increase , net radiation is to decrease in ecosystem ; Moreover , the proportion of soil heat flux in heat balance increases , but that of potential heat flux decreases .