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rubber forest
相关语句
  橡胶林
     (2)the highest surface temperature on bare land>that on pure rubber forest>that on artificial rainforest>that on natural rainforest;
     (2)地面最高温度表现为旷地>单层橡胶林>人工雨林>自然雨林,地面最低温度相反,以自然雨林最高,旷地最低。
短句来源
     Thermal Vertical Characteristics near to Edge of Rubber Forest
     橡胶林缘热力垂直特征的初步分析
短句来源
     The results show:(1)extent of soil temperature fluctuation in bare land>that in pure rubber forest >that in artificial rainforest >that in natural rainforest,and the phase hysteresis of bare landrubber forest
     结果表明:(1)土壤温波振幅减小幅度表现为旷地>单层橡胶林>人工雨林>自然雨林,位相滞后则是旷地<单层橡胶林<人工雨林<自然雨林。
短句来源
     (3)the absolute value of soil heat flux of bare land>that of pure rubber forest >that of artificial rainforest,but their phases hysteresis appear in turn.
     (3)土壤热通量的绝对值以旷地>单层橡胶林>人工雨林,而位相依次滞后
短句来源
     Release effects of tropical seasonal rain forest and rubber forest on rainfall erosivity in South Yunnan
     滇南热带季节雨林和橡胶林对降雨侵蚀力的减缓效应
短句来源
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  橡胶林地
     Study on Volvariella volvacea Cultivated with Sisal Residue in Rubber Forest
     橡胶林地剑麻渣栽培草菇研究
短句来源
     It was also found that there were higher microbial biomass, shorter microbial transformation period and higher turnover rate in the soils of rubber forests intercropping with Amomum villosum and coffee than that in the pure rubber forest soil.
     橡胶林间种作物后,林地土壤表现出比纯橡胶林地有较高的土壤微生物生物量和较短的土壤微生物的转化周期,年转化代数较多;
短句来源
     The result about Volvariella volvacea cultivated with sisal residue in rubber forest is reported.
     本文报道橡胶林地剑麻渣栽培草菇的试验结果。
短句来源
     The key technology of Volvariella volvacea cultivation with sisal residue in rubber forest is also discussed.
     本文还探讨了橡胶林地剑麻渣栽培草菇的技术要点
短句来源
  胶林
     The Services Function of Biodiversity and Its Value Evaluation of Rubber Forest in Hainan Island
     胶林生物多样性服务功能及其价值评价
短句来源
     The types of vegetation, the laws of succession and the changes of the biodiversity were studied by investigating the species diversity of rubber forest in time series. The biodiversities of various communities were compared.
     采用时间序列样方调查胶林物种多样性,初步研究了胶林的植被类型、演替规律及生物多样性的变化,并与不同的群落类型进行了比较,探讨了生物多样性在维持地力方面的生态服务功能。
短句来源
     The evaluated results showed that the total value of rubber forest's biodiversity in maintaining the soil fertility in Hainan was 1.189xl010 Yuan per a year, the mean value was 2.6812x104 Yuan hm-2.a-1 and the total value of its biodiversity in maintaining the soil fertility was 8.0434xl05 Yuan hm-2 during the life cycle of rubber forest(30yaers).
     初步估算出海南岛现有胶林生物多样性每年所维持的土壤肥力价值为1.189×10~6万元,平均每公顷胶林每年保持的土壤价值为2.6812万元,每公顷胶林在其生命周期(30年)中生物多样性保持的土壤肥力总价值为80.436万元。
短句来源
     The biodiversity of the rubber forest was lower than the natural forest ecosystem's.
     胶林的生物多样性低于自然生态系统。
短句来源
     The biological effects of the community structure of one artificial rubber forest were observed with the modern instruments and the traditional microclimate observations.
     采用近代仪器与传统小气候观测相结合的方法,研究了人工胶林群落结构的生物学效应;
短句来源
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  “rubber forest”译为未确定词的双语例句
     A PRELIMINARY STUDY ON CANOPY SURFACE TEMPERATURE OF RUBBER FOREST IN YUNNAN
     云南橡胶林冠面温度的初步研究
短句来源
     A TRIAL DISCUSSION ON THE PRODUCTIVITY OF ARTIFICIAL RUBBER FOREST ECOSYSTEM
     试论橡胶人工林生态系统的生产力
短句来源
     Linear Charactor of the Sunshine of the Gap in the Rubber Forest
     干季晴天橡胶林林窗温度剖线分布特征
短句来源
     Comparison research on hydrological effect of the canopy of the tropical seasonal rainforest and rubber forest in Xishuangbanna, Yunnan
     西双版纳地区热带季节雨林与橡胶林林冠水文效应比较研究
短句来源
     Comparison of the Mechanical Composition and Soil Fertility Between Tropical Seasonal Rain Forest Soil and Rubber Forest Soil in Xishuangbanna
     西双版纳不同林分土壤机械组成及其肥力比较
短句来源
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  rubber forest
In addition, measures were taken to convert unproductive forest reserves into rubber-forest plantations.
      


The biological effects of the community structure of one artificial rubber forest were observed with the modern instruments and the traditional microclimate observations. The variation regularity of some ecological factors was preliminarily discussed. It was observed that the temperature of rubber trees and the sunlight intensity at the experimental locality were closely related. In Xishuan-banna, the rubber tree temperature of facing southwest part is higher than that of facing northeast part....

The biological effects of the community structure of one artificial rubber forest were observed with the modern instruments and the traditional microclimate observations. The variation regularity of some ecological factors was preliminarily discussed. It was observed that the temperature of rubber trees and the sunlight intensity at the experimental locality were closely related. In Xishuan-banna, the rubber tree temperature of facing southwest part is higher than that of facing northeast part. The highest temperature difference between W and N parts of rubber trees was 1 ℃. The temperatures of the surface and shallow parts of the rubber trees were directly and obviously influenced by the sunlight intensity. And the influence was gradually reduced to the deeper parts of the rubber trees. The core parts of the rubber trees were indirectly influenced by the sunlight intensity. But they were not only influenced by the environment but also subjected to the regulations of the rubber trees themselves. During the winter, the thermal effect was more obvious on the rubber forest border than in the forest deeps. The temperature of the forest border was 2 ℃ higher than that of in the forest deeps. This kind of temperature difference may be used in the cold prevention on artificial rubber forest. Since the temperature of rubber trees is different from the air temperature. While the air temperature changes relatively limited. This difference of temperature variation is favourable to the normal growth of plants. It is proposed that to measure the temperature of rubber trees can be used in the observation of cold injury. It is useful to cultivate some tea trees in rubber forest to increase the forest temperature in winter. It is not an ideal method of cold prevention to apply a black coating on the trunks of rubber trees because the increase of the temperature on the forest border is not much obvious in winter. Moreover, if such method to be used in rubber forest deeps, there would be a tendency of slight decrease of the temperature which may increase the cold injury to rubber trees.

采用近代仪器与传统小气候观测相结合的方法,研究了人工胶林群落结构的生物学效应;对若干生态因子变化规律进行了初步讨论。胶树体温与测试地日照强弱密切相关。西双版纳树温西南高,东北低,西向与北向最高温之差约为1℃;树表和浅层受日照影响直接而明显,随深度增加而减弱,树心比较间接,既受环境影响又受本身机体调节。冬季胶林边行热效应较明显,比林内树温高2℃左右,若加充分利用对防寒有一定意义。树温和气温有差别,气温变幅大,树温变幅小,有利于植物正常生活,建议直接测定树温观察寒害。胶林中适当种植茶树,冷季有增暖效果,能对轻度寒害起缓冲作用。涂黑树干法不是理想防寒措施,因边行增温不明显,况且密林深处有轻微降温趋势,可能导致寒害加重。

Design of a simple preservative system for rubber timber is described in this paper. The system was found to be reliable,practical,cheap and suited to preservative treatment of rubber timber at rubber forest stations in Guangdiong Province and Hainan island.

本文介绍一种简便的木材防腐系统的设计方案。该系统工作可靠,简单实用,造价低,适用于广东、海南等橡胶林场对橡胶木的防腐处理。

In this paper, the wind velocity, turbulent structure and drag coefficient inside and above the forest-tea-rubber artificial community were observed under the condition of neutral atmosphere. The best type of community for wind break was decided through studying the mechanism of weakening Typhoon's damage to rubber forest. The experimental results show that wind velocity and kinetic energy(KE)reduced significantly due to friction with the tree canopy and leaves when Typhoon passed through the community....

In this paper, the wind velocity, turbulent structure and drag coefficient inside and above the forest-tea-rubber artificial community were observed under the condition of neutral atmosphere. The best type of community for wind break was decided through studying the mechanism of weakening Typhoon's damage to rubber forest. The experimental results show that wind velocity and kinetic energy(KE)reduced significantly due to friction with the tree canopy and leaves when Typhoon passed through the community. The larger scale Typhoon with higher KE and weaker turbulence turned into smaller scale eddy with weaker KE and higher turbulence.Increment of turbulant energy leading to increment of attenuation rate of wind velocity, and decrement of turbulence transfer. As a result damage of rubber forest made by Typhoon was decreased remarkably. Due to forest-tea-rubber community of two row in clumps has the maximum attenuation rate of wind velocity and minimu turbulence transfer. Thus this type of the community has the best wind protection effect and to be consided as the best type for protecting rubber forest from Typhoon.

本文研究台风登陆时(中性大气层结)胶茶人工群落内部及上部风速的变化,湍流结构的变化及阻力的变化,来分析判断其减弱台风破坏的机理,评定最佳防风效果的林胶茶人工群落方案。试验研究证明台风吹向胶茶人工群落,台风越过和穿过林带,由于气流与树冠、枝叶的冲击与摩擦作用,使台风风速大大降低,使动能大大损失,使原来动能强和湍流弱的较大尺度旋涡的台风,变成旋涡尺度较小的动能弱湍流强的湍流,湍流能量的增强反映了风速递减率增大,湍流交换减弱,从而达到减弱台风对橡胶林破坏的目的;由于双列丛种式林胶茶人工群落的内部风速递减率最大,湍流交换最小,因此其防风效果最佳,是减弱台风破坏橡胶林的最佳林胶茶人工群落方案。

 
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