| 1. | Application of gps and gis technology in investigation of soil physics parameters 在土壤物理参数调查中的应用 |
| 2. | The effects of land use changes on the distribution of soil organic carbon in physical fractionation of soil 土地利用变化对土壤物理组分中有机碳分配的影响 |
| 3. | Effects of several organic substances on the solubility and adsorption - desorption behaviors of cadmium in purplish soil 土壤容重对土壤物理性状和小麦生长的影响 |
| 4. | Both s . viciifolia and caraganar have good activation to quik - result phosphorus . in addition , s . viciifolia can improve soil physical properties 狼牙刺对土壤物理性状有一定改善作用, 0一zocm土层中, > 2 |
| 5. | The utilization of domestic sludge can increase the soil fertility , improve the physics properties of soil and facilitate growth of plant 利用城市生活污泥可增加废弃地土壤肥力,改善土壤物理性状,促进植物的生长。 |
| 6. | It is feasible to predict soil infiltration capacities by routine physical parameters with stepwise regression models with multiple units 采用多元逐步回归模型用常规土壤物理参数对土壤水分入渗模型参数进行预报是可行的。 |
| 7. | Result shows that the main reason for serious occurrence of pest and disease on street afforestation trees is the deteriorating of the physic - chemical and biological properties of soil 结果表明:土壤物理、化学、生物学性质的恶化是长春市街路树木病虫害严重发生的主要原因。 |
| 8. | Corn yields of phaeozem in " flat type " " boundary soil ( depth < 15cm ) reached 6 . 65t / hm2 . in addition to , content of available , water , organic carbon . cation exchange capacity and available n was the most in " flat type " boundary soil ( depth = 30cm ) 在吉林玉米带黑土土壤物理环境方面,两种不同形状界面构造土壤在三相组成、有效土壤量、持水性能等方面差异显著,相关分析表明,吉林玉米带黑土玉米产量与耕层厚度、有效水含量呈明显相关关系。 |
| 9. | The harms of soil compaction represented briefly as soil bulk density and penetration resistance increased , macroporosity decreased , soil physical , chemical and biological properties deteriorated , which effected on crop growing and soil structure degradation , and has become one of the principal obstacle factors for sustainable development of agriculture 土壤机械压实危害主要表现在土壤容积质量和机械阻力增加,大孔隙减少,土壤物理、化学、生物性状恶化,进而影响作物的生长发育,土壤结构发生退化,已成为当前制约农业可持续发展的障碍因素之一。 |
| 10. | This paper systematkally researched the characteristics of growth and physiology of sophora viciifolia hance ( a kind of natural shrub ) and its effects on the content of soil water , soil nutrieftt and soil physical property . the paper applied some methods and theory of plant ecology , plant physiology , physics of soil and soil chemistry etc . three different age s . viciifolia hance in the different plot were selected , caraganar land and fallow land as a comparison 本文以陕北黄土区安塞纸坊沟流域内在植被演替中占有重要地位的天然灌木种( 6 、 14 、 17龄)狼牙刺( sopharaviciifoliahance )为对象,以15龄柠条( caraganar )和撂荒地为对照,系统研究了狼牙刺的生长特征、生理特性,及其生长对土壤水分、土壤养分、土壤物理性状的影响。 |