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1)  grass coverage
草被覆盖度
1.
Effects of grass coverage on shallow flow hydraulic parameters and sediment reduction
草被覆盖度对坡面流水力学参数的影响及其减沙效应
2)  grass coverage
草被覆盖
1.
Experimental study on the effect of different grass coverages on the overland flow velocity;
草被覆盖对坡面流流速影响的人工模拟试验研究
2.
The objective of this study is to reveal the influence of grass coverage on the time of runoff beginning and stop in the hillslope-gully slope erosion system on loess hilly area.
草被覆盖对坡面流有明显的阻延作用。
3.
Results showed that the sediment yield decreased with increasing grass coverage atsmaller water inflow rates in scouring experiments.
通过室内放水冲刷试验方法,研究了坡沟系统坡面不同草被覆盖度及空间配置下,坡沟系统侵蚀产沙变化过程及特征。
3)  vegetation coverage
植被覆盖度
1.
Remote sensing estimation of vegetation coverage in Guangzhou based on the correction of atmospheric radiation;
基于大气辐射校正的广州市植被覆盖度遥感估算
2.
The relationship between soil erosion and vegetation coverage on the basic of TM image interpretation in Nanchuan City,Chongqing;
应用TM图像分析重庆南川市土壤侵蚀与植被覆盖度的关系
3.
Estimation of vegetation coverage based on an improved sub-pixel model;
基于修正的亚像元模型的植被覆盖度估算
4)  vegetation fraction
植被覆盖度
1.
Temporal-spatial characteristics and grading structure of vegetation fraction based on TM image in Guangzhou;
基于遥感影像的广州市植被覆盖度内部结构与时空变化
2.
Spatio-temporal characteristics of vegetation fraction calculation from TM imagines in Guangzhou from 1990 to 2005;
广州市1990—2005年植被覆盖度的时空变化特征
3.
The Method of Vegetation Fraction Estimation by Remote Sensing;
植被覆盖度的遥感估算方法研究
5)  Vegetation cover
植被覆盖度
1.
Retrieval and analysis of vegetation cover in the Three-North Regions of China based on MODIS data
基于MODIS数据的三北防护林工程区植被覆盖度提取与分析
2.
Multilayer random coupled model to observe vegetation cover in sample areas
多层随机拟合法测量样方植被覆盖度
3.
Vegetation cover characteristics have both spatial and temporal components.
在防治风蚀过程中过去人们只关注植被覆盖度的空间特性,但对其随时间变化的特性未引起足够的重 视。
6)  plant coverage
植被覆盖度
1.
Comparison between computed results and actual plant coverage degree shows that the overhead photograph combined with image processing is an accurate and fast method to measure plant coverage degree.
植被覆盖是影响土壤侵蚀的一个重要因子,植被覆盖度的测量精度直接影响到土壤侵蚀模型参数的滤定或侵蚀量的估算。
2.
The plant coverage of two fields located in Beijing city was measured periodically in order to analyze the errors of overhead photograph and visual estimation for plant coverage.
选择北京密云、怀柔的 2块农地作为样地 ,对照相法测量植被覆盖度的效果进行了分析 ,并将之与目估法进行了对比。
3.
Visual estimation is one of the most frequently used methods for plant coverage measurement,but estimation error is very great.
利用自行设计的野外垂直照相装置 ,选择北京密云、怀柔的 2个样地对植被覆盖度进行动态监测 ,分析目估测量植被覆盖度的精度 。
补充资料:地被新秀多花筋骨草
    多花筋骨草系唇形科筋骨草属常绿多年生草本。茎4棱,具匍匐茎和直立茎,茎节有气生根。叶对生,边缘具粗锯齿,先端钝圆,基部楔形,叶片纸质,长椭圆形,叶面有皱褶裙,生长季节绿中带紫,入秋后叶片紫红色。花蓝紫色,轮伞花序,长年零星开放,较集中开放时间为4至5月和10至12月,株高25至30厘米。原产美国。
    多花筋骨草性喜半阴和湿润气候,在酸性、中性土壤中生长良好,耐涝、耐旱、耐阴也耐暴晒,抗逆性强,长势强健。多花筋骨草可采用分株或扦插繁殖。
    分株一般在生长旺季的5至6月或10月进行。将母株挖出分为4至5株,在疏松土壤中做畦栽植,每亩栽2万株。加强肥水管理,上半年移栽下半年即可出圃。10月份分株,冬季可用小拱棚保暖,使小苗加快生长,至翌年4至5月可出圃。
    扦插一年四季均可进行,因节处易生不定根,扦插成活率可达95%。选择疏松的扦插基质,插穗带2个节,6至8厘米长,上留2片叶。一星期后即可生根,30天后可移植圃地。
    多花筋骨草病害少,扦插时如湿度太大或栽植过密,相互拥挤易发生腐烂,可用多菌灵或护苗神800倍液喷洒或淋浇。
    多花筋骨草可成片栽于林下、湿地,达到黄土不露天的效果。2002年杭州西湖南线绿化改造工程中大量引用该品种,取得很好的效果。(来源:中国花卉报2003-01-07)
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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