| 1. | Vegetation change in late miocene and evolution of photosynthesis 晚中新世植被变更与光合作用演化 |
| 2. | Oasis vegetation change in gansu hexi area by meteorological satellite monitoring 气象卫星遥感监测甘肃河西绿洲植被变化 |
| 3. | This paper examined the vegetation change from 2000 to 2004 by using the modis - ndvi data 本文利用modis - ndvi遥感数据,对银川平原2000 ~ 2004年间的植被变化趋势进行了研究。 |
| 4. | Using by the method of difference analyze and the theory of regression analyze , the analyzed the spatial characteristic of vegetation change in arid land 6 在差值分析和回归理论的支持下,分析了干旱区植被变化的空间特征; 6 |
| 5. | Current research projects deals with the influence of climate change and land use , the extent of the last interglacial and other glacier studies , basin analysis , vegetation changes etc 当今的研究计划处理气候变化和土地使用的影响、最后的间冰期和其他冰河研究的范围、盆地分析、植物变化等。 |
| 6. | We selected dongzhaitang profile in the zhaitang basin of xishan mountain , beijing area from which the malan loess got its name and study the sequence of vegetation change recorded in the malan loess of xishan mountain by means of spore - pollen analysis 本研究选取马兰黄土的命名地?北京西山斋堂盆地东斋堂砖厂剖面,以孢粉分析为手段来研究末次冰期中期北京西山黄土中的植被演化过程。 |
| 7. | The results of the study show that the affections to the local climate are rather obvious when the vegetation are changed in the west of liaoning province . of the several kinds of vegetation change in the west of liaoning province , the vanish and the resume of the forest is the mo 本研究结果表明:辽西地区植被变化对当地气候的影响是比较明显的,在辽西地区植被变化的几种形式中,森林的消失和恢复是影响当地气候变化最重要的形式。 |
| 8. | Coupling vegetation dynamics at multiple scales is essential to explore the mechanisms of water and sediment yield response to vegetation changes such as vegetation reestablishment , development , succession , distribution , and management practices - we reviewed literature on advances in studying the processes and mechanisms of the vegetation influence on runoff and sediment production in relations to vegetation growth , vegetation succession , vegetation patterns and distribution , as well as afforestation and deforestation 由于植被自身的生长发育以及受自然因素和人为干扰的作用,植被变化具有多尺度性;由于受流域水文环境的异质性和水文通量的变化性的影响,流域水文过程也同样具有多尺度性。 |
| 9. | According to the derived spore - pollen percent diagram and spore - pollen concentration diagram , the sequence of vegetation change recorded in the malan loess of xishan mountain , beijing area is as follows : zone p1 : in this zone the herbal pollens were overwhelming and the total pollen concentration was relatively high , so the vegetation during this period was arid grassland P3带,该带总体上花粉浓度较小,花粉浓度出现了多次波动,表明该时期气候不稳定,植被在荒漠草原和干草原之间变化。该带可以分成下列5个亚带: p3 ) , p3 2p34pm和p3 5 。 |