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1)  vegetation history
植被史
1.
Pollen analysis is a main research method of reseach on forest vegetation history andpaleoecology.
花粉分析是现今研究森林植被史及其古生态的主要手段、由于植被与其所产生的花粉组合的关系十分复杂,化石花粉图谱的解释是花粉分析中一个关键问题。
2)  historical vegetation
历史植被
3)  Vegetation history
植被历史
4)  Plant [英][plɑ:nt]  [美][plænt]
植被
1.
Study on Plants Growed Naturally in Slide Slope of Road in South of Anhui Province;
安徽南部山区公路边坡生态自然恢复植被分析
2.
The Application of Hyperspectral Remote-Sense to Plant Fine-Classification;
高光谱遥感在植被精细分类中的应用
3.
Discussion of research methods on relationship between climate change and plant.;
气候变化和植被关系研究方法探讨
5)  Plantation [英][plɑ:n'teɪʃn]  [美][plæn'teʃən]
植被
1.
Research on the Response of Grassland Plantation and Soil in Xilamuren to Human Disturbance;
希拉穆仁草原植被和土壤对人为干扰的响应
2.
In this paper,a comparison of different technologies for treatment of artificial greenery area was made which can serve as advice to the design of sheltered plantation on ground or roof.
人工地面覆土植被是地下建筑空间上部处理的常用方法 ,但我国的处理方式与世界先进水平有较大差距。
3.
The representation of some main pollens in Shennongjia region is studied according to analysis of soil and plantation samples.
根据表土花粉分析和植被样方调查,对神农架南坡常见花粉的R值作了研究,结果表明:大部分阔叶花粉如栎、山毛榉、槭、鹅耳枥、榛、胡桃、枫杨、枫香、杜鹃、木兰、冬青、漆树、栗、榆具有低代表性,只有桦具有适宜代表性。
6)  vegetation cover
植被
1.
Because of the effects of plant roots on soil infiltration and anti-scourability,the time of runoff be- ginning becomes longer with the increase of the vegetation coverage.
植被根系提高土壤渗透性和抗侵蚀性,植被盖度越大径流起始时间越长,植被提高边坡的入渗率和减少土壤流失相互促进,共同作用的结果是保持水土,所以植被增加边坡降雨入渗的作用是十分显著的。
2.
The results showed that in the soil layers of 30~60 cm,the contents of the soil moisture in the land with the vegetation cover were 10% lower than those without vegetation.
以宁夏盐池沙地为对象,研究了沙地水分条件与植被分布格局的关系。
3.
8% in 1998, and the vegetation cover in the .
经过 5年治理 ,到 2 0 0 2年底 ,全市完成水土流失治理面积 4 75 8km2 ,治理程度由 1998年的 19 8%提高到37 3% ,治理的重点流域林草植被逐年增加 ,生态环境开始向良性循环转变。
补充资料:金属材料发展史(见材料发展史)


金属材料发展史(见材料发展史)
history of metallic material

金属材料发展史historyor metalli。material见材料发展史。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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