| 1. | The nuggets , sills and ranges do not change with the depth of soil profile apparent
3坡面上绝大部分剖面土壤水分特性具有中等程度和强烈的空间相关性。 |
| 2. | The sclerotia can infect rice plant in 1 - 3cm depth of soil , bringing about a new complicated problems to contral the desease
菌核多次萌发特性和地下侵染能力使防治增加困难。 |
| 3. | The coefficient of variation of saturated water content decreased with the depth of profile . the coefficient of variation of bulk density and field capacity fluctuate with depth of soil
饱和含水量的变异系数都随深度的增加逐渐降低，含水量、容重和田闷持水量的变异系数随深度的呈波动变化。 |
| 4. | The main results are as follows : 1 . soil co2 concentration of epikarst ecosystem begins to increase in turn with the depth of soil , and it is mainly controlled by temperature and humidity without rain
我们发现： 1表层带岩溶生态系统土壤coz浓度从地表向下依次增大，在无雨的条件下，土层coz浓度的高低主要取决与温度、湿度。 |
| 5. | The soil stress variety will lessen when the depth of soil increases . the soil stress also varies in the horizontal direction . the stress is the largest in the center of the sheet and the least both ends
在超载作用下挡板后土压力增量沿高度随填土深度的增加而减小；沿水平方向也非经典理论所说的均匀分布，而是跨中最小，两端最大。 |
| 6. | The main results are as follows based on field survey and analysis : 1 soil water is the water stored in the soil that can be absorbed by plants in some depth of soil , and the efficiency of soil water plays the critical role in plant growth and development . so soil water is the resource that is very crucial to vegetation
经过两年多的野外实地考察和室内分析，取得了如下主要研究结果： 1土壤水分是指贮存在土壤中一定深度范围内能被植物吸收利用的土壤水含量，土壤水分的有效性对植物的生长发育起着最为关键的作用，因此，土壤水分应属于水资源的范畴，是水资源的重要组成部分。 |
| 7. | It was shown that the measured active soil pressures were smaller than the theoretical values and diminished with time , the measured pore water pressure decreased with the time and increased with the depth of soil , the combinative effects of cap girder and supporting structure were obvious which diminished the displacement of foundation pits , and the measured axial force of the anchor and interior steel beam were far less than the design force , indicating that the design safety factor of the foundation pit was too large to be economical
基坑工程实行信息化施工并获得了丰富的监测数据，通过对数据分析结果表明：实测主动土压力小于计算主动土压力，实测主动土压力随时间延长变小：土体中孔隙水压力随时间增长而减小，孔隙水压力随深度增加而呈非线性增加；基坑冠梁协同作用明显，冠梁减小了基坑变形；锚索轴力比较稳定，钢撑轴力变化相对较大，且二者轴力仍富余较大，该设计比较安全。 |
| 8. | The research results are as follows : ( 1 ) with the increasing of the height to the ground , the value of co2 concentration in air become adding ; the depth of soil profile more deeper , the value of co2 concentration in soil more higher . ( 2 ) the temperature in the sample area , which is with high elevation , is higher than the temperature in the sample area , which is with low elevation
通过研究发现： ( 1 )两不同海拔高度上的样地内大气co _ 2浓度值均具有随距地表高夏季金佛山垂直自然带匕岩溶生态系统内co :动态的研究度的增加而减少的趋势;而土壤空气中的c0 :浓度值多具有随土深增加而增大的趋势。 |
| 9. | 2 . on the basis of analyzing experimental data for slope land of loess plateau in different slope gradient and rain intensity and soil and water conservation tillage measures , using curve - fitting techniques , a soil infiltration rates model was woke out , the accuracy of the model is tested by a series of experiment data , the result of these indicate that the soil infiltration rates model is accurate and has good stability for slope land of loess plateau . 3 . using soil infiltration rates and runoff time and wetting frontal surface depth of soil infiltration reflect effect of factor affecting soil infiltration rates
( 3 )采用土壤稳定入渗速率、坡面开始产流时间、土壤湿润锋面下渗深度三个指标来反映坡耕地土壤入渗影响(土壤性质、土壤初始含水率、地面坡度、降雨强度、积水深度、水土保持耕作措施等)因素效用大小，建立了各因素与三个指标的关系模型，详细分析了不同水土保持耕作措施强化土壤入渗的影响，其中等高耕作作用最为显著，其次是人工掏挖和人工锄耕。 |
