查询词典 vegetation

In this study,Cynodon Rich is selected as the trial plant to study the process of nutrient cycling in a substrate-vegetation system of rock slopes with observation tests simulating rock slopes.

该文以狗芽根为建植植物，利用模拟边坡的观测试验，对岩石边坡基质-植被系统的养分循环过程进行了研究。

Effect of Plant Growth Regulators on the Growth and Vegetation Color of Bermudagrass Cynodon spp.

篇名 生长调节剂对百慕达草(Cynodon spp。)生长及植被颜色之影响

Zoology environment aggravation basically behaves the resource that it is water rare be short of and development uses rate low; extensive cultivate course of study to make quality of agricultural zoology environment deteriorates quickly; prairie ecosystem suffers excessive depasture wait for a reason to destroy serious, natural prairie produces structural sex decline, vegetation productivity is reduced significantly.

生态环境恶化主要表现为水资源稀缺且开发利用程度低；粗放型的种植业使农业生态环境质量迅速退化；草原生态系统受过度放牧等原因破坏严重，天然草原发生结构性衰退，植被生产力显著降低。

The results showed that covering the dich slopes with shrub could significantly increase soil shear strength, compactness and moisture content, and the formed vegetation had significant effects on retarding runoff and removing TSS (P.05). Applying live fascines could significantly increase soil shear strength and TSS removal rate (P.05), but its effects on increasing soil compactness and moisture content and retaining runoff were not significant.

结果表明：与对照相比，使用灌丛垫技术修复后的坡岸土壤剪切力、紧实度和土壤湿度显著提高(P.05)，坡岸植被延缓径流和去除悬浮物效果显著(P.05)；使用柴笼技术修复后的坡岸土壤剪切力和悬浮物去除率显著提高(P.05)，但对土壤湿度、紧实度和雨水径流的延滞作用不太明显。

The result showed that Imperata cylindrical, Digitaria sanguinalis, Erigeron acer Xanthium sibiricum and Hedyotis auricularia are the species with high tolerance to heavy metal pollutions adapted to the adverse conditions of wastelands. These species can be used as pioneer plants for recovety of the vegetation in the manganese-mined wastelands. The individual event pollution index of the heavy mentals, compared to their background values are higher than 2, with Pb as an exception, indicating that the soil in these areas has been contaminated and that Mn and Cd are the elements creating most serious pollution problems.

结果表明，白茅、马唐、飞蓬、苍耳、耳草对重金属有较强的耐性，而且能适应废弃地的不良环境，可作为锰矿废弃地生态恢复的先锋植物；用3种不同的背景值对废弃地土壤重金属污染程度的评价结果是一致的，除Pb外，5种重金属元素单项污染指数均大于2，表示被污染，其中以Mn、Zn、Cd污染最为严重。

The vegetation which in the both sides of pavement and travel road were influenced badly, some go-with-people plants appeared, such as Plantago depressa, Digitaria adscenders,Setaria viridis, etc..

公路和旅游小路两侧以及招待所附近的植被受人为干扰严重，出现了平车前、铁杆蒿等伴人植物。

Based on the method of dimidiate pixel model and sub-pixel models for vegetation coverage estimation. The current model is improved.

改进方法主要是基于原有模型的两个重要参数，进行重新推导得到。

The research results showed that: The accuracy of dimidiate pixel model is better than that of the experiential model during the vegetation retrieval.The curve degree of the cubic curve fitting is the best during the three built experiential models, but the experiential model is very simple and used widely.

研究结果表明：植被盖度反演中，像元二分模型的精度高于经验模型的精度，在建立的三个经验模型中，又以三次拟合曲线的拟合度最高。

With the quantitative retrieval of vegetation cover, the experiential model is built by NDVI and practical data. According to the theory of the mixed pixel decomposing, NDVIsoyi and NDVIveg are confirmed and the dimidiate pixel model is built.

在对植被盖度的定量反演中，选用NDVI与实测数据建立了经验模型，根据混合像元分解的理论，确定出NDVISOYI和NDVIveg，建立了像元二分模型。

The Three-North Shelter Forest Program covers 13 provinces of China, which brings great influence to the eco-environment of North, Northeast and Northwest China (Three-North Regions). In this paper, the vegetation cover in the Three-North Regions was estimated by using a dimidiate pixel method based on the MODIS-NDVI data in August 2001 and 2007, with its spatiotemporal changes analyzed.

以像元二分模型为基础，构建了基于归一化植被指数的植被覆盖度定量估算模型，并利用MODIS-NDVI时间序列数据，估算了三北防护林工程区2001年8月和2007年8月的植被覆盖度，分析了三北防护林工程区植被覆盖度的时空变化特征。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"