1) natural vegetation
天然植被
1.
Method for estimating ecological water requirement of natural vegetation in arid area;
干旱区天然植被生态需水量计算方法
2.
Efficiency and value of urban natural vegetation
城市天然植被的功效和价值
3.
Aiming at the issues of natural vegetation deterioration and ecological function decline, the present situation of natural vegetative and the cause of its deterioration were detected clearly by jointly adopting the methods of field investigation and related research result collection.
针对鄯善绿洲边缘带天然植被衰退、生态功能下降等问题,采用实地调查和收集相关调研成果相结合的方法,在初步查明天然植被现状及存在问题、分析退化原因的基础上,探讨了鄯善绿洲边缘带天然植被的保育途径,认为主要应从加强现有植被的保护,加强人工林的培育,采用必要的经济手段等方面来实施。
2) Semi natural vegetation
半天然植被
3) sparse natural vegetation
稀疏天然植被
1.
Different types of sparse natural vegetation occurring in inland deserts and coastal dune\|fields exert a certain influence on the blown sand activity and the development of aeolian sand landforms.
因此,为了达到防沙的要求,其中就存在着一个稀疏天然植被的有效临界密度问题。
4) natural vegetation cover
天然林草植被
1.
Aiming at serious issues of deterioration in ecological environment and decreasing in natural vegetation area in Erjinaqi of the lower Heihe River,the typical natural vegetation covers in areas where have been deteriorated and protected were investigated and compared firstly.
针对黑河下游额济纳旗天然林草植被面积不断减少、生态环境日趋恶化的问题,根据已采取的保护措施和已经退化的典型天然林草植被的实地对比调查结果,结合已有研究成果,在对天然林草植被保护评价主要因素地下水埋深、植被覆盖度、植物种类、土地沙化程度等分析的基础上,采用定性和定量相结合的方法,提出了额济纳旗天然林草植被的保护评价指标。
2.
Aiming at issues of natural vegetation cover area continuous reduction and eco-environment deterioration, the present situation of natural vegetative cover and its existing problem was detected clearly first adopting jointly methods of field investigation and current research results collection.
针对黑河下游额济纳旗天然林草植被面积不断减少、生态环境日趋恶化的问题,采用实地调查和收集相关调研成果相结合的方法,在初步查明天然林草植被现状及存在问题、分析退化原因的基础上,经过探讨认为,额济纳旗天然林草植被的保护途径主要包括:大力推行围栏封育,按照草场的载畜能力调节载畜量,增加供水量、扩大灌溉面积,适当发展人工林草,建设人工小生物圈等。
3.
The results showed that in order to protect natural vegetation cover effectively, in the near future, drylot-feed-ing scale should be enlarged greatly.
针对黑河下游额济纳旗天然林草植被面积不断减少、生态环境日趋恶化的问题,采用实地调查和收集相关调研成果相结合的方法,在查明天然林草植被现有保护措施及效果的基础上,经过分析认为:为有效保护额济纳旗天然林草植被,今后应大力推行围栏封育;按照草场的载畜能力,调节载畜量;增加供水量、扩大灌溉面积;适当发展人工林草,加强抚育管理等。
5) natural grassland vegetation
天然草地植被
1.
After comparing the meteorological indices among years,the meteorological conditions for our natural grassland vegetation growth were .
应用模糊数学方法,构造了影响中国天然草地植被生长的光、温、水函数;通过光、温、水评价结果之间的"与"运算,建立了天然草地植被生长气象条件综合评价模型;采用积分方法,反映草地植被任意时段气象条件的时间累积影响效应;通过气象条件指数的年际对比,评价草地植被生长气象条件的优劣;最后,利用上述模型计算了2005年和2006年中国天然草地植被月、季以及主要生长期气象条件指数,并进行了对比分析、应用和效果检验。
6) natural forest vegetation
天然森林植被
补充资料：石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(internotional tradeof011 and只as)见石油市场与天然气市场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条