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- When cultivated and stripped of their dense vegetative cover, soils of the humid tropics quickly lose their fertility. 当将厚密的植被除去并耕种时,潮湿热带地区的土壤就会迅速失去其肥力。
- Based on the observed data of Zhengzhou southwest exurban freeway,the effects between soil erosion and rainfall are discussed with the vegetative cover rate(90%,70%,50%,30%,10%). 研究郑州西南绕城高速公路边坡不同土壤保持工程措施,在一定植被盖度(90%25、70%25、50%25、30%25、10%25)下,不同降雨强度对土壤侵蚀速率的影响。
- Obviously, these results underline the experience of numerous upland farmers: Cultivation without safeguarding a fast and stable vegetative cover of crops inevitably leads to soil loss which means loss of productivity. 显然,这些结果与无数旱地农民的经验相符合:没有保证作物快速稳定的植被覆盖层的耕作无疑会造成土壤损失,进而引起生产力损失。
- This paper introduced an experimentation of engineering slope vegetative cover in Qinghai plateau.The result showed that native herbage was most ideal plants for recovery of ecology in soil slope. 青海高原地区工程边坡植被恢复的试验结果表明:本地的草本植物是高原地区理想的土质边坡生态恢复植物,在低海拔温暖地区广泛使用的多年生黑麦草等草坪植物不适应高原寒冷气候。
- The vegetation cover of Jiufu Mountain in Youxi County were studied. 本文对福建尤溪九阜山自然保护区植被进行初步研究。
- Influence on Rainfall Runoff by Vegetative Cover 森林植被对降水径流的影响
- To permit animals to graze(vegetational cover) excessively,to the detriment of the vegetation. 使过度放牧让动物过度地吃(植物丛林),到了有害于植物的程度。
- The front cover of the novel has been torn off. 这本小说的封面已被撕掉。
- To permit animals to graze(vegetational cover)excessively,to the detriment of the vegetation. 使过度放牧让动物过度地吃(植物丛林),到了有害于植物的程度
- The warm climate of the southwest makes its mountains green and its waters emerald; the vegetation cover is lush. 温和的气候使 它山青水绿、植被丰茂,
- To permit animals to graze(vegetational cover) excessively, to the detriment of the vegetation. 使过度放牧让动物过度地吃(植物丛林),到了有害于植物的程度
- Predation risk, habitat type and vegetation cover are factors which affect animal dispersal of seeds. 捕食风险、生境类型、植被盖度均影响动物对种子的扩散。
- Over-grazing has damaged the vegetation cover of this area, and the land is beginning to show signs of desertification. 过度的放牧使该地区被覆遭到破坏,土地开始荒漠化。
- The result show: the vegetation cover is very low in Huanjiang, dongchuan, Puhe ect. 结果表明:流域北部的环江、东川、蒲河等子流域植被覆盖程度普遍较低,需要重点保护;
- You can't judge a book by its cover. 不能根据封面判断一本书(不可以貌取人)
- Soil-cut slopes on hillside shall be minimised to reduce the visual impact and then planted up to re-establish the vegetation cover that was removed. 须尽量减少在山边开拓泥土削坡以减轻对景观的影响,并须随后栽种植物,使因工程而被清除的植物得以恢复原貌。
- Vegetation cover maps of three different years (e.g. 1989, 1997 and 2003) were derived from the Landsat TM images for the city of Shanghai. 通过TM影像解译,获取上海市1989、1997和2003年共3个时期的植被分布,构造植被变化轨迹,分析轨迹的空间格局;
- Nongzhong loess hilly region is a brittleness ecology environment with a sparse vegetation cover and severe soil erosion. 陇中黄土丘陵区生态环境脆弱,历史时期人为活动强烈,导致生态环境退化与农牧交替频繁。
- The evaluation on stony desertification sensitivity mainly considered the factors of topography,geomorphology and vegetation cover. 石漠化敏感性评价主要考虑了地形、地貌、植被盖度因素;
- Fractional Vegetation Cover (FVC) is an important ecology parameter, which is essential in the studies of hydrology, ecology and global variation. 植被覆盖度是重要的生态学参数,对水文、生态、全球变化等研究具有重大意义。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries