| 1. | Impact of forest ecosystems on atmospheric nitrogen deposition
森林生态系统对大气氮沉降的响应 |
| 2. | Effects of atmospheric nitrogen deposition on forest soil acidification
大气氮沉降对森林土壤酸化的影响 |
| 3. | Dry deposition of atmospheric nitrogen to jiulong river watershed in southeast china
九龙江流域大气氮干沉降 |
| 4. | Spatial and temporal variation of atmospheric nitrogen deposition in north china plain
华北平原大气氮素沉降的时空变异 |
| 5. | Nitrogen transformations in forest soils and its responses to atmospheric nitrogen deposition : a review
森林土壤氮素转换及其对氮沉降的响应 |
| 6. | Atmospheric nitrogen wet deposition and its effects on wetland water environment of shanghai area
上海地区大气氮湿沉降及其对湿地水环境的影响 |
| 7. | Effects of increased deposition of atmospheric nitrogen on forest nutrition and stress of susceptibility
沉降的增加对森林营养和胁迫敏感性的影响 |
| 8. | In this research project , the agrobacterium tumefaciens mediated transformation of badh gene of tetraploid black locust has been studied , for the purpose of improving resistance to soline - alkali and drought of tetraploid black locust ; of playing more important role in developing of waste lands , ameliorating of soline - alkali soil , and greening and beautifying of surface - mined lands , mine waste dumps , slopes of roads and railroads where restoration of vegetative cover has proven difficult ; of fully making benefits of its ability to fix atmospheric nitrogen in the soil
为了进一步提高四倍体刺槐的耐盐性和抗旱性，进一步扩大其适宜种植的生态范围，充分发挥其固氮、改良土壤的特性，在我国的城镇绿化、荒山造林、盐碱地改良以及采矿迹地、公路、铁路边坡等植物生长困难土地的植被恢复中发挥其优势，本实验对四倍体刺槐进行了农杆菌介导的甜菜碱醛脱氢酶基因转化的研究。 |
