| 1. | In loessal regions and alluvial valley fills of the western united states, both surface soil and subsoil are commonly friable .
在美国西部黄土区和冲积河谷里，表土和底土一般是容易破碎的。 |
| 2. | Comparison of water consumption of some afforestation species in beijing area
黄土区防护林主要造林树种水分供需关系研究 |
| 3. | Spatial variation of soil water and nutrient content on loess slope in shanbei china
陕北黄土区土壤水分养分空间分异规律 |
| 4. | Study on estimation of the amount of soil erosion in small watershed based on gis and rs
黄土区小流域土壤侵蚀系统模拟的研究 |
| 5. | Arrangement of protective forest system in gulled - hilly loess area based on water balance
基于水分平衡的黄土区小流域防护林体系高效空间配置 |
| 6. | Sediment sources and effects of vegetation on erosion control in the gully - hilly loess area in north china
黄土区小流域侵蚀泥沙来源与植被防止侵蚀作用研究 |
| 7. | The area of sienna in 1997 decreased 103271 . 9 hectares than that in 1987 , decreased 82 . 15 % than before
变化最小的类型为河流，变化最大的为黄土区域， 1997年的黄土区面积比1987年减少103271 . 9公顷，比原来减少82 . 15 。 |
| 8. | ( 3 ) soil erosion assessing systems and evaluating water - soil safety models have been first raised in the stackpile of large opencast mine within loess area
( 3 )初次建立了我国黄土区大型露天矿排土场土壤水性致灾因子指标体系和水土安全评价模型 |
| 9. | The main causes are the enhancement of government ' s and people ' s protection consciousness on forests and enhance the coverage of the forest by strengthen planting
黄土区面积的减少主要因为政府和人民保护森林意识的增强，并且加强植树造林而使森林覆盖率大幅度提高的结果。 |
| 10. | The storage of soc in zhuanyaogou watershed was lower than the mean value of soc reserve in the loess plateau . the low content of soil organic matter was the limiting factor
1以无m深度内，砖窑沟流域土壤有机碳储量低于黄土区平均有机碳储量，说明流域的土城有机质含t偏低。 |
