土壤垂直分布

REE示踪条带施放法研究坡面土壤侵蚀垂直分布规律

Vertical distribution of soil erosion in slope with the belt discharge method of REE tracer

三种样地中，土壤动物垂直分布特点较为明显，A层最多，体现了土壤动物分布的表聚性，而B、C两层个体数的差异不显著。

In three sample fields , the feature of vertical distribution of soil animals is obvious . The abundance of number and genus are apparent in layer of A , and there isn 't evident difference between layer B and C.

作为研究土壤侵蚀垂直分布的新方法，较详细地描述了稳定性稀土元素（REE）示踪法的原理与操作技术；

Stable REE tracer method , as a new method for studies of soil erosion intensity vertical distribution , has been proposed and adopted in this study , especially for its experimental method and operating techniques .

通过室内模拟和野外小区试验，采用中子活化分析手段，进行了运用REE示踪条带施放法研究坡面土壤侵蚀垂直分布的可行性分析。

Based on the experimental data obtained from the belt discharge of REE tracer and INAA technology in room and field , the probability using this method to study vertical distribution of soil erosion in slope is analyzed .

而过氧化氢酶、转化酶、硝酸还原酶活性不宜作为评价土壤养分垂直分布的指标。

However Catalase , invertase and nitrate reductase activities could not .

坡面土壤侵蚀垂直分布定量分析研究

Study on Vertical Distribution of Soil Erosion on Loess Slope

花生根系在土壤中垂直分布特性的研究

Studies on distribution characteristics of root system in peanut along soil profile

黄土丘陵沟壑区土壤水分垂直分布研究

Vertical Distribution of Soil Moisture in the Loess Hilly and Gully Area

下渗与土壤水垂直分布的概念性模型

A Conceptual Model of Infiltration and Soil Moisture Vertical Distribution

长期施肥对麦田土壤微生物垂直分布的影响

Effects of long-term fertilization on vertical distribution of microorganisms in wheat field soil

汾河流域土壤重金属垂直分布规律及地域差异

Vertical Distribution and Regional Differentiation of Soil Heavy Metals in Fen River Valley

林-草边界水平方向上3个分区的土壤水分垂直分布呈现出不同的变化规律，而且旱季的规律特征与雨季相反。

The vertical distribution of soil moisture at forest edge area showed an in-between feature .

科尔沁沙地土壤动物垂直分布、季节动态及群落多样性探讨

The Vertical Distribution , Seasonal Dynamics and Community Variety of Soil Animal in Horqin Sandy Land

柳枝稷；土壤水分垂直分布；生物量；根系垂直分布；水分利用效率；

Switchgrass ; Soil water spatial distribution ; Biomass ; Root spatial distribution ; Water use efficiency ;

黄土高原丘陵沟壑小流域土壤水分垂直分布变异特征及影响因子

Spatial variability of soil moisture vertical distribution and related affecting factors in hilly and gully watershed region of Loess Plateau

该试验表明，膜垄在保水保墒和土壤水分垂直分布方面表现出与秸秆覆盖完全不同的特点。

The experiment also showed that straw mulch and ridge covered with plastic film were different in the soil water conservation and vertical distribution .

黑土有机质的土壤剖面垂直分布特点是，在土壤表层有机质聚集、含量较高，表层以下呈现下降的趋势，在黑土的不同区域都呈现一致的趋势。

The black earth organic archery target soil profile vertical distribution characteristic is , at the soil mantle organic matter accumulation , the content is high , the surface layer following presents the drop the tendency , presents the consistent tendency in the black earth zones of different .

麦田中0～15cm土壤动物的垂直分布无显著差异。

There 's no significant difference in the vertical distributions of soil animals in the soil horizons of 0 ~ 15 cm in the wheat field .

自然沼泽湿地土壤中元素垂直分布分层性较明显，而农田土壤中，除Pb外，其他元素含量的剖面变化较自然沼泽湿地平缓，但剖面变化的趋势基本一致（B和Cd除外）；

The vertical stratification of trace elements in natural wetland soils is significant while in tillage soils section changes of elements , except Pb , are gentler than those in natural wetland soils . Some elements in wetland and tillage soils have a similar trend excluding B and Cd .

对土壤铅含量垂直分布的研究表明，随着土壤深度增加，铅含量迅速减少，距地面10cm以下时，即达到土壤背景值的下限。

The concentration of lead decreases rapidly with increasing of the depth of the soils and the lead concentration at 10 cm under the surface reaches the lower limit of its soil background , implying the pollution from vehicle exhaust lead mainly focusing on the surface soils .

彰武农田土壤风蚀物垂直分布规律的研究

Research of Farmland Soil Erosion on Vertical Distribution Law in Zhangwu County

西峰黄土高原麦田土壤水分的垂直分布

Vertical Distribution of Soil Moisture in Xifeng Wheat Field of Loess Plateau

在全球变暖环境下的武夷山土壤类型的垂直分布预测

Vertical Soil Distribution Types in Wuyi Mountain Under the Environment of Global Warming

三种酶在土壤剖面中垂直分布有明显的层次性，多随土层加深而递减。

The enzyme activity decreased obviously along with soil layer depth increasing . 3 .

河北坝上高原土壤风蚀物垂直分布的初步研究

Preliminary study on the vertical distributions of wind dust over Bashang plateau , Hebei Province

不同水肥条件下硝态氮在土壤剖面中垂直分布规律研究

The Vertical Distribution of Nitrate Nitrogen in the Soil under Different Fertilizer and Irrigation Conditions

捕食线虫真菌在土壤中的垂直分布随土层的加深而减少。

In suppressive field , nematode trapping fungi indicated the feature of Log normal distribution .

杉木林地不同更新方式土壤有机碳垂直分布及储量

Soil organic carbon : distribution and storage with five regeneration patterns in Cunninghamia lanceolata forests

但是，不同种类线虫在土壤中的垂直分布有不同的趋向性。捕食线虫真菌在我国的分布

The distribution of the nematode is deep . DISTRIBUTION OF NEMATODE - TRAPPING FUNGI IN CHINA

分析了佳木斯市城市土壤水的垂直分布，土壤水的月蓄水量变化特征。

The vertical distribution and monthly variation of soil water content in Jiamusi City were analyzed .