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robinia相关的网络例句

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与 robinia 相关的网络例句 [注:此内容来源于网络,仅供参考]

In order to provide theoretical reference to the burl's directional cultivation and utilization research was done on Populus tomentosa,Salix matsudana and Robinia pseudoacacia,and the pH value, buffering capacity of acid and alkaline,curing time of UF of various species of the normal wood and the burl wood were compared.

为了给瘤材的定向培育和合理加工利用提供科学依据,以自然生长的、带有树瘤的毛白杨、旱柳、洋槐为试验材料,对各树种的正常材和瘤材的pH值、酸碱缓冲容量、与脲醛树脂胶固化时间等指标,进行对比研究。

The sixteen plants are firstly divided into six types according to evaluation grades and subject function statistical method:the first type is Cajanus cajan and Crotalaria mucronata,the best adaptability ,which can be used pioneer plant or constructive species; the second type is Cynodon dactylon,the better adaptability, which can be used constructive species ;the third type is Eragrostis curvula, Paspalam notatum,which can be used constructive species on rotten rock slope ; the forth type is kummerowia striata,Lotus corniculatus and Vitex negundo.The adaptability is centered,and can be used protection species and auxiliary species;the fifth type is Robinia pseudoacacia,Eremochloa ophiuroides,Vitex negundo,Lespedeza formosa,Leucaena leucocephala,Desmodium sequax, Rhus chinne- nsis,which can't be plant singly and be used accessory species;the sixth is Trifolium repens,which can be used pioneer plant.

根据评价边坡防护植物适应性的十个重要指标,首次运用隶属函数和聚类分析方法,对各供试植物的边坡适应性综合排序并分为六类:第一类为木豆和猪屎豆,边坡适应性最强,适宜作为先锋植物和建群种;第二类为狗牙根,边坡适应性强,适宜与豆科植物混播,作为建群种;第三类为弯叶画眉草和百喜草,边坡适应性较强,适宜与豆科植物混播,作为风化岩边坡的建群种;第四类为鸡眼草、百脉根和马棘,边坡适应性中等,适宜作为保护种与伴生种;第五类为刺槐、假俭草、荆条、美丽胡枝子、银合欢、波叶山蚂蝗和盐肤木,边坡适应性较差,不宜单独在边坡上种植,最好与速生型豆科草本混播,作为边坡防护植物群落的辅助植物;第六类为白三叶,边坡适应性最差,但因其出苗率高、生长速度快,作为先锋植物,起到前期覆盖坡面的作用。

As the major tree species for forestration in Hilly region on the Loess Plateau, Robinia pseudoacacia and Hippophae rhamnoides can only grow normally in habitant with better soil water condition due to the limited drought resistance of H.

作为黄土高原的主要造林树种,沙棘的抗旱性最差,而刺槐的耐旱性最差,它们都要在土壤水分条件较好的生境才能正常生长。

Through the experiment with Pinus tabulaeformis, Robinia pseudoacacia and Lespedeza bicolor, the regression equation with varies of separation voltage and roller rotate speed is proposed and the most optimized electrical separation parameter arrangement is affirmed.

通过对油松、刺槐和胡枝子 3种林木种子的试验,得到了以分选电压和分选滚筒转速为变量的回归方程,井确定了最优化的电场分选参数组合。

(1)The Miscellaneous shrub (Thick and thin Miscellaneous shrub) landscape type is the largest area-part of Yangou watershed,farmland,robinia pseudacacia,mature orchard and grass are second to it.

中文摘要:统计分析燕沟流域不同生态功能景观的斑块构成,为流域治理效果评价和景观格局优化提供依据。

At present, new varieties of seeds and seedlings have: Japan Jinguan Parkinson, Parkinson Wheatgrass, Blue Sword hodginsii, Eclisse Magnolia, fire-Yan Photinia, Mosaic climb vulgaris, Viburnum, Phnom Penh cornuta, Golden Robinia, Purple Bauhinia leaves Canada, liquor Silver Parker, silver edge Pittosporum, yellow fruit Pyracantha, Acer rubrum.

目前新品种种苗有:日本金冠柏、蓝冰柏、蓝剑柏、含羞玉兰、火艳石楠、花叶爬地柏、荚迷、金边枸骨、金叶刺槐、紫叶加拿大紫荆、酒银柏、银边海桐、黄果火棘、红花槭。

Conclusion]This research will provide the theoretical references for growth and drought tolerance of robinia.

结论] 该研究为饲料型刺槐的栽培和耐旱性研究提供理论依据。

The population structure and dynamics of Robinia pseudoacacia clones are studied.

研究了刺槐克隆种群的种群结构和生长动态。

Method] The main physiological characteristics of the 3 clone robinia seedlings for forage were studied.

方法]对3个饲料型刺槐无性系的主要光合生理指标进行对比分析。

Objective] The purpose was to study the photosynthetic-physiological characteristics among the robinia seedlings.

[目的]研究刺槐幼苗的光合生理特征。

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