红河流域植被覆盖度低,水土流失严重。
The Honghe River basin suffers from low plantation coverage and water and soil erosion.
植被覆盖度是分析和考察植被状态的重要指标。
Vegetation coverage is an important parameter for analyzing the status of vegetation.
植被覆盖度是绿洲生态环境变化的最重要标志之一。
Plant cover is one of the most important sign of oasis ecological environment change.
地形和植被覆盖度是最重要的两个面源污染影响因素。
Topography and vegetation cover rate were two of the most important influence factors of nonpoint source pollution.
根据一般方程推导了植被覆盖度与拦沙量的诸关系式。
On the basis of which the general formula for controlling soil erosion by vegetation is established.
这表明植被覆盖度对土壤有机碳流失的影响具有逐渐性。
These suggested that there was a gradual effect of vegetation coverage on the losses of organic carbon of soil.
讨论了不同土壤光谱线对绿度及植被覆盖度估计的误差。
The influence of different soil spectral line on plant canopy and greenness assessment was discussed.
近30年间,三峡大坝植被覆盖度整体上有增加的趋势。
On the whole, during the nearly 30 years, the vegetation cover hes shown an increasing trend.
NDVI与EVI值的差异随着植被覆盖度的增加而增大。
The difference between NDVI and EVI is larger as vegetation coverage increases.
发现不同植被覆盖度内的飞蝗天敌群落和数量有明显的差异。
Significant difference was found in natural enemies community and populations among vegetations with different degree of coverage.
结果表明,文安驿流域近10年来植被覆盖度总体呈上升趋势;
The results showed that vegetation coverage in Wenanyi watershed on the rise in general over the past 10 years;
防止土壤水蚀应以生物措施为主,增加植被覆盖度是最有效的措施。
Priority should be given to biological measures in preventing soil water erosion, and the most effective measure is to increase vegetation coverage.
不同植被覆盖度下冻土活动层的土壤水分分布及变化过程存在差异。
There is much difference of the soil moisture's spatial distribution and change processing under different vegetation coverage.
在坡向尺度上,植被覆盖度与土壤侵蚀强度之间的变化规律不明显。
In the aspect scale, the changes of vegetation coverage had less effects on the changes of soil erosion intensity.
增加植被覆盖度,合理密植是减少水溶态硼流失,保持水土的重要措施。
The runoff and boron loss of soils without covering are more serious …
大风日数和温度是沙尘暴形成的动力因子,植被覆盖度和降水是阻力因子。
Windy days and temperature are composed of the impetus factors of dust storm, and vegetation coverage and precipitation are the main resistance factors.
植被覆盖度是衡量地表植被覆盖的一个重要指标,在许多方面作为重要参数输入。
Vegetation fraction is a very important index to score the vegetation coverage on the land surface and is used in many aspects as one of the input parameters.
采用人工调查与遥感判读相结合的方法,建立地表植被覆盖度的遥感识别样本知识库。
The repository of removing sensing identifying samples for surface vegetation cover rate is set up by combining man-made investigation with remote sensing identification.
植被覆盖度是一个十分重要的生态学参数,对于全球环境变化和监测研究具有重要意义。
Vegetation coverage is an important ecological parameter, possessing important significance to the global environment variation and monitoring investigation.
年降雨量较大年份对应的植被覆盖度较高,反之较差,年平均气温对植被状况影响不明显。
Annual rainfall of the year corresponding to the larger vegetation in good condition, otherwise poor.
植被是陆地生态系统中不可缺少的一部分,植被覆盖度的增加能够有效减缓土壤侵蚀的发生。
Vegetation is an indispensable part of terrestrial ecosystem, and the increase of vegetation coverage could effectively slow down the occurrence of soil erosion.
其次,利用TM影像的第四和第三波段计算植被指数,根据植被指数按照转换模型提取植被覆盖度;
Next, vegetation index was calculated which was based on Band 3 and Band 4 of TM image, and degree of vegetation coverage was extracted according to NDVI based on the transformation model;
影响东亚飞蝗发生的环境因子主要有水文条件、植被种类以及植被覆盖度、耕作制度和天敌等因素。
The factors that influenced Locustae's occurrence were hydrology conditions, vegetation types and coverage, farming systems, natural enemies and so on.
通过摄影与数字图像处理相结合的方法分析了1999年北京山区典型植被覆盖度的季节动态变化规律。
How the typical vegetation coverage changed with time in the mountainous area of Beijing in 1999 is studied after processing the photos taken in field.
从有利于水土保持的角度,把降雨量、植被覆盖度、枯落物厚度和土壤流失量等作为水土流失监测项目;
In terms of being favorable to soil and water conservation, we confirm the rainfall, vegetation cover degree , thickness of litter and the amount of soil erosion as monitoring projects.
因此,要想从植被覆盖的角度来控制土壤有机碳的流失,则应该将地表植被覆盖度维持在66%及其以上。
It meant that losses of organic carbon of soil suddenly decent when the vegetation coverage amounted to 66% or so.
用NOAA卫星数据对沙地植被覆盖度进行动态监测可以为认识该地区的荒漠化动态变化及过程提供丰富的信息。
Dynamic monitoring of vegetation coverage of sands using NOAA satellite data can usefully aid in the understanding of the dynamic processes of desertification in the Ordos region.
结果表明,喀斯特峡谷区土壤温度与石漠化等级程度相关性不大,与植被覆盖度,特别是林下草被覆盖度具有很大相关性;
The results reveal that the soil temperature was not related to rocky desertification degrees, but has a close relation with vegetation coverage, especially the grass coverage.
结果表明,喀斯特峡谷区土壤温度与石漠化等级程度相关性不大,与植被覆盖度,特别是林下草被覆盖度具有很大相关性;
The results reveal that the soil temperature was not related to rocky desertification degrees, but has a close relation with vegetation coverage, especially the grass coverage.
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