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林木生长情况
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  growth of forest
     Investigation of growth of forest after afforestation by using different site peparation standards and different back-filled with soil types showed that survival rate reached 99% ~100% by using 0.8 m×0.8 m×0.8 m stereoscopic and quadrate soil preparation in big hole and mean increment of DBH was the biggest.
     通过采取不同整地规格和不同的回坑土类型造林后林木生长情况调查研究,结果表明:采用0.8m×0.8m×0.8m立体方型大坑整地,客土填坑造林,成活率达到了99%~100%,胸径平均生长量最大。 林分的各项指标基本达到速生丰产标准。
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  “林木生长情况”译为未确定词的双语例句
     It was also found that the type and growth of the forests on the soils were closely related with the clay mineral composition of the soils and their chemical environment conditions.
     红松林类型和林木生长情况与土壤粘土矿物学特性及其化学环境条件密切有关。
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     The growth of the trees and the output of the intercropping jute (Corchorus capsularis) and sudangrass (Sorghum sundanense) under pond cypress (Taxodium ascendens) with different age were studied. It showed that there was comensalism to the trees in the agroforestry system composed of 5~6 years old trees,but there was amensalism to the crops in the agroforestry system composed of trees older than 6 years.
     研究了池杉( Taxodium ascendens) 下间作黄麻( Corchorus capsularis) 和苏丹草( Sorghum sudanense) 在不同树龄阶段的林木生长情况和作物产量,结果发现5 ~6 a 树龄时的林农复合系统具有对林木的偏利作用,而6 a 树龄后的树木对农作物有偏害作用。
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  相似匹配句对
     blazei were tested, respectively.
     blazei的生长情况 .
短句来源
     Tree Form Factor Growth Regularity
     林木主干形质生长
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     Models for Projecting Stand and Tree Growth
     林分和林木生长预测模型
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     Study on Growth of the Pink Yeast
     叶生红酵母生长情况的研究
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     On the turn of the Forest Destroy in the Bei Song Dynasty
     北宋时期林木破坏情况的历史分析
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  growth of forest
Morphometric characteristics of the growth of forest stands located at different distances from a large copper-smelting plant were estimated.
      
To assure the healthy growth of forest-based ecotourism in China, based on the theory of sustainable development, we have made several suggestions about how to improve forest parks and develop forest-based ecotourism.
      
We tested the general hypothesis that early-colonizing shrubs facilitate growth of forest tree seedlings.
      
To supply the rapidly expanding needs for coniferous forest products, future growth of forest production ventures is sure to occur in South America, southern and central Africa, Australia, New Zealand, and similar subtropical areas.
      
The height and diameter growth of forest and agroforest trees was similar, regardless of tree planting pattern.
      
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The mineralogical composition of a soil catena of dark brown forest soils derived from granite in the Xiao Hinggan Mountains was investigated in relation to weathering proccess under the conditions of warm-cool humid climate and the different relief. It was found the acid eluviation proccess in soils was getting weaker from the upper slope downwards under the bioclimatic condions mentioned above. The minerals were generally weathered in the following sequences: biotite acid-weakly acid dioctahedral Al-(interlayer)...

The mineralogical composition of a soil catena of dark brown forest soils derived from granite in the Xiao Hinggan Mountains was investigated in relation to weathering proccess under the conditions of warm-cool humid climate and the different relief. It was found the acid eluviation proccess in soils was getting weaker from the upper slope downwards under the bioclimatic condions mentioned above. The minerals were generally weathered in the following sequences: biotite acid-weakly acid dioctahedral Al-(interlayer) vermiculite weakly acid-neutral secondary chlorite; plagioclase and microcline weakly acid smectite or interstratified minerals of smectite-kaolinite group. Under the coniferous-deciduous mixed forest, humus was accumulated distinctly in horizon A, where vermiculitization of biotite was less intensive because of the complexation of humic acid with free aluminium and iron. At the same time, the proccess of acid eluviation was appeared in horizons AB and B, where the breakdown of feldspars and the transformation of biotite into Al-(interlayer) vermiculite occured to a great extent. In the horizon C remained detritus, biotite and smectite-kaolinite interstratified minerals. In consequence, the hydroxyl aluminium from the clay minerals was the main reason for potential acidity of the soils. It was also found that the type and growth of the forests on the soils were closely related with the clay mineral composition of the soils and their chemical environment conditions.

本文研究了温凉湿润地区不同地形条件下花岗岩母质上的山地暗棕色森林土土壤链的矿物风化。结果表明,由阳坡岗顶、中部到阴坡下部,酸性淋溶由强变弱。原生铝硅酸盐矿物蚀变为次生的粘土矿物:黑云母酸—弱酸性→二八面体Al(层间)蛭石弱酸—中性→Al绿泥石;微斜长石→蒙皂石;斜长石弱酸性→高岭石或蒙皂石一高岭石类矿物的混层物。在针阔混交林作用下,A层腐殖酸与铝、铁络合,铝蛭石化过程弱。AB和B层黑云母和长石蚀变强,矿物晶层间羟基铝积累,阳坡岗顶Al(层间)蛭石和蒙皂石化,形成了较高的土壤潜在酸度;阴坡下部除Al蛭石外,并有成土Al绿泥石形成,潜在酸度低。含有蒙皂石的C层,层间铝有积累。矿物蚀变和晶层Al转移,是山地暗棕色森林土酸度的主要来源。红松林类型和林木生长情况与土壤粘土矿物学特性及其化学环境条件密切有关。

This paper deals comparatively with the runoffproducing, soilwater content, water balance and trees growth of two spacing (9m×2m and 5m×2m) artificial Locust Forest between waterharvesting and conventional treatment. The results showed that afforestation by waterharvesting can increase runoff harvest in the planting strip, raise soil water content, permeate more rainwater into deep soil under the roots range and prevent critical deficit of soil water continuously for a long time——soil desiccation, which...

This paper deals comparatively with the runoffproducing, soilwater content, water balance and trees growth of two spacing (9m×2m and 5m×2m) artificial Locust Forest between waterharvesting and conventional treatment. The results showed that afforestation by waterharvesting can increase runoff harvest in the planting strip, raise soil water content, permeate more rainwater into deep soil under the roots range and prevent critical deficit of soil water continuously for a long time——soil desiccation, which results in declination of trees growth. In these treatments, the lowest density (8m2 tamped) is desirable for effect, it is that more than 35% annual runoff yield is stored in soil, deep soil water is replenished effectively and growth of forest tress is promoted.

本文对采用集水造林措施的两种密度人工刺槐林的产流、土壤水分变化、水量平衡以及林木生长情况与常规造林进行了对比分析,结果表明集水造林能增加植树带径流收获量,提高土壤含水量,使更多的降水渗入到根际区以下的深层土壤,防止了土壤水分长时间持续严重亏缺———土壤干化的发生,以及所导致的林木生长不良等问题。其中,以密度较小的8m2拍光处理的效果最佳,生长季汇集径流量的20%以上将贮留于土壤中,有效地补充了深层土壤水分,促进了林木生长。

Based on theories and methods of hydrology,the main factors of water consumption and supply by stand survey and on site observationater were obtained. Available water resource and regularity of water supply and consumption in forest soil, the relationship between water supply and water consumption of black locust(Robinia pseudoscacia L.)and Chinese pine (Pinus tabulaeformis Carr.) forests were analyzed,which are used as the main tree species for establishment of protection forest in the loess area...

Based on theories and methods of hydrology,the main factors of water consumption and supply by stand survey and on site observationater were obtained. Available water resource and regularity of water supply and consumption in forest soil, the relationship between water supply and water consumption of black locust(Robinia pseudoscacia L.)and Chinese pine (Pinus tabulaeformis Carr.) forests were analyzed,which are used as the main tree species for establishment of protection forest in the loess area of the western Shanxi province. Water supply is less than water consumption in April, May and June, and more than water consumption in rainfall season, in the high density stand,the available water amount is relative inadequate, serious water deficit always occurs. Deficit amount of northward slope is higher than that in southward slope. According to the determination of soil moisture in deeper soil layer, soil moisture is lower in medium age forest with high density in southward slope, so soil is becoming desiccation.Analysis results on correlation between water supply, consumption and forest productivity show that opitimum water balance is the critical factor to improve water potential productivity in forest, which plays important role in management of protection forest in similar types and areas.

通过定位观测,分析了黄土区人工刺槐和油松林地供水与耗水关系、土壤水分动态及林木生长情况。结果表明:人工刺槐和油松林4 ,5 ,6 三个月林地土壤水分消耗大于供给,水分供耗矛盾突出,土壤贮水减少;雨季水分供给充足,土壤贮水增加;在干旱季节和年份,相同条件下,密度大的林分林地水分供耗矛盾突出,林地水分亏损严重;不同坡向,水分亏损量大小顺序为:阳坡> 半阳坡> 阴坡;0300 cm 土层土壤水分调查显示,阳坡、半阳坡密度较大的中林林分林地土壤含水量较低,出现干化现象;从水分生产力来看,由于林地水分供应不足,林木生长不同程度受到限制,林分生产力逐年降低。

 
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