| 1. | Effects of soil depth on decay speed of straw
土壤深度对还田秸秆腐解速度的影响 |
| 2. | The numbers of phosphate - solubilizing bacteria were decreased rapidly with the increase of soil depth
随着土壤深度的增加，溶磷细菌的数量急剧下降，其中 |
| 3. | The activity of soil urease , acidphosphotase and invertase weakened with increase of soil depth
各林地土壤脲酶、磷酸酶和转化酶随着土壤剖面的加深，其活性减弱。 |
| 4. | 5 . the activity of soil enzyme have evdent plumb distributing . their activity decrease rapidly with increaseing soil depth
5 .六种植物群落中土壤酶活性具有显著的垂直分布特征。 |
| 5. | Among these , yellow soil account for 80 % of the total area soil depth has negative relation with slope
土层厚度与坡度呈负相关，而在母岩倾角大的地带，由于坡度大的增大以薄层土壤居多。 |
| 6. | Pac increased correspondingly with the increase of soil fertility while pac decreased with the increase of soil depth
随土壤肥力提高， pac相应提高；但同一土壤中随土层加深， pac呈下降趋势。 |
| 7. | The numbers of bacteria , actinomycetes and fungi were the highest in 0 cm 10 cm of soil and those decreased gradually with the increase of soil depth
土壤中细菌生物量随着土壤深度的加深而逐渐减小。土壤真菌的总生物量包括菌丝生物量和孢子生物量， |
| 8. | For different soil depths , the amplitude of temperature daily variation can be approximated as an exponential function of the depth ; which correlation coefficient is above 0 . 90
一日内地温变幅与深度可以拟合成指数函数关系，且相关系数都很高，都在0 . 90以上。 |
| 9. | As bottomland , soil depth and gavel content are not taken into account , altitude 800 m and slope = 5 are the criteria of unsuitable for cultivation temporarily
对滩涂类单元，不考虑单元的土层厚度与砾石含量，以海拔800米且坡度5判断其是否为当前不宜耕。 |
| 10. | The nitrogen fixation in alpine meadow ecosystem is mainly accomplished by anaerobic nitrogen fixing bacteria . both ammonification and nitrification are the highest in 0 cm 10 cm soil depth
从不同植被类型土壤的表层中各生理群菌数的平均值来看，反硝化细菌的数量最高，嫌气性自生固氮菌次之，再次为氨化菌和硝化菌。 |
