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| 毛乌素流动沙地飞播后基质的变化与播区植被的演变 | |
| 引用本文： | 沈渭寿. 毛乌素流动沙地飞播后基质的变化与播区植被的演变[J]. 干旱区资源与环境, 1996, 10(3): 63-68 |
| 作者姓名： | 沈渭寿 |
| 作者单位： | 中国科学院兰州沙漠研究所 |
| 摘 要： | 流动沙地飞播以后，随着基质稳定性的不断增强，即随着沙地由流动到半固定和固定状态的变化，沙地的物理和化学性质都会发生一系列的变化，而群落环境的变化又往往对飞播植物产生不利的影响。研究表明，毛乌素流动沙地飞播以后植物群落自身引起的群落环境的改变主要表现在地表０—１０ｃｍ深度内土壤粘粒含量、有机质含量、水解Ｎ含量和ＰａＯ５含量的增加以及盐酸和碳酸钙的淋洗。沙地的这些理化性质的变化又正是群落进展．演替的动力，而群落的进展演替则表现在飞播植物的衰退和天然植物油蒿以及草本植物盖度和群落丰富度的增加。本文研究了毛乌素流动沙地飞播以后沙地理化性质的变化以及这些变化对植物群落本身的影响。 |
| 关 键 词： | 毛乌素沙地，飞播治沙，基质变化，植被演替 |
CHANGE OF COMMUNITY ENVIRONMENT AND VEGETATION SUCCESSION AFTER AERIAL SEEDING ON MOVING SANDSIN MO US AREA |
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| Shen Wei shou. CHANGE OF COMMUNITY ENVIRONMENT AND VEGETATION SUCCESSION AFTER AERIAL SEEDING ON MOVING SANDSIN MO US AREA[J]. Journal of Arid Land Resources and Environment, 1996, 10(3): 63-68 | |
| Authors: | Shen Wei shou |
| Abstract: | Studies show that the changes of community environment caused by plants after aerial seeding on moving sands in Mo Us Area include increase of clay particle,organic matter,hydrolytic nitrogen and P2O5 contents and the leaching of hydrochloric acid and calcium carbonate, and all of these are directly interrelated with the population coverage of Artemisia ordosica and natural perennial herbs and community richness. |
| Keywords: | Mo Us sandy land aerial seeding succession change of sandy surface. |
| 本文献已被 CNKI 维普 等数据库收录！ | |