2) soil water infiltration characteristics
土壤水分入渗特性
1.
Method of single-ring was employed to study soil water infiltration characteristics of Purple soil in Three Gorges reservoir area.
利用室内环刀法对三峡库区紫色土土壤水分入渗特性进行了研究。
3) soil permeability
土壤入渗性能
1.
In order to definitude soil permeability of typical plant communities of Jinyun Mountain,this paper studied the soil of different .
土壤入渗性能既是评价土壤水源涵养作用的重要指标又是反映土壤抗侵蚀能力的重要指标,是土壤水分研究的重要内容。
4) soil infiltration
土壤入渗
1.
Spatial distribution characteristics of soil infiltration capacity in water conservation forest in Lianhua Lake reservoir area;
莲花湖库区水源涵养林土壤入渗性能的空间分布特征
2.
Estimation of soil infiltration parameters during furrow irrigation based on IPARM method;
基于IPARM方法估算沟灌土壤入渗参数
3.
From the crown to the plant roots of the plants,they reduce the flows and its amouring the soil,improve the soil infiltration of the flows,reduce the sediment transport on the slope,as a result,the water and soil losses also became smaller.
植被从林冠至根系在不同层面上减缓径流对土壤的冲刷 ,并改善土壤入渗 ,减少坡面泥沙的输移 ,使水土流失量减少。
5) infiltration
[英][,infil'treiʃən] [美][,ɪnfɪl'treʃən]
土壤入渗
1.
This study was conducted to understand the influence of surface coverage on soil infiltration in the farming-grazing transitional zone by taking Yanchi County, Ningxia Hui Automous Region as an example.
为了解我国北方农牧交错区不同地表覆盖物对土壤入渗的影响,以宁夏回族自治区盐池县为例,采用样线调查法进行地被状况调查,并在所设样线各样方内对应进行入渗试验。
2.
Steady-state infiltration rate decreases with increased soil bulk density,but increases with increased total porosity,water stable.
结果表明,在长江中上游地区,利用蒋定生公式和Horton公式对土壤入渗过程拟合的精度高于Philip方程和Kostiakov经验公式;土壤稳渗速率与容重呈负相关,与孔隙度、>0。
3.
With increased soil temperature,saturation infiltration decreases firstly and then increases sharply,which can be well described by a quadratic function.
通过对青藏高原风火山流域2005—2007连续3 a的土壤水分入渗试验,运用回归分析方法和旋转主成分分析法,对影响土壤入渗过程的地温、土壤深度、土壤理化性质、植被盖度、土壤初始含水率等环境因子进行了分析。
6) Soil permeability
土壤入渗
1.
Using the principal component analysis function of statistics software SPSS,the effects of all factors,including soil moisture content,soil texture,soil salinity,soil organic and so on,on soil permeability were.
结果表明:额济纳绿洲的几种典型土地利用方式下的土壤饱和导水率,其大小关系为:西戈壁>七道桥保护区沙枣林>二道桥胡杨林>林工站棉花地>二道桥柽柳林>梭梭苗圃地;通过因子的KMO(Kaiser-Meyer-Olkin)检验,影响土壤入渗的因子被归类为三个主成分,分别为土壤疏松程度因子、土壤水分因子、容重和阴阳离子总量因子,它们的主成分的累计贡献率为80。
补充资料：灌溉入渗补给系数
灌溉入渗补给系数
coefficient of irrigation recharge into ground water
guan’gai rushen buji xishu灌溉入渗补给系数(eoeffieient of irriga-tion reeharge into ground water)灌溉水补给地下水的数量指标，是灌溉入渗补给地下水的量与灌溉水量之比。影响因素主要有灌溉定额，土壤含水量、土壤质地、地下水埋深、植被情况和气候条件等。 灌溉水入渗，只有在土壤含水量超过田间持水量时，多余的水才能补给地下水。一般在相同的条件下，灌溉定额小、土壤质地粘重与植被差时，灌溉入渗补给系数小(如果灌溉定额很小，可能无入渗补给);反之则大。田间的地下水埋深大(即非饱和带上壤的厚度较大)，故灌溉入渗补给系数小;反之亦然。当引外区的河水或井水时，由灌溉入渗补给系数算得补给地下水量，作为本区的地下水补给量。引河水灌溉，一般灌水定额较大，灌溉入渗补给系数大;引井水灌溉，灌水定额较小，此系数亦小。(金光炎)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条