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   forest ecosystem 在 自然地理学和测绘学 分类中 的翻译结果: 查询用时:0.014秒
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forest ecosystem
相关语句
  森林生态系统
    Research on Structure and Function of Soil Animals in Forest Ecosystem in Da Xinganling Mountains
    大兴安岭森林生态系统土壤动物结构及其功能研究
短句来源
    The evaluation of soil conservation of forest ecosystem in China
    中国森林生态系统保护土壤的价值评价
短句来源
    (4) measuring the activities of soil enzymes in degraded forest ecosystem;
    (4 )退化森林生态系统的土壤酶活性特征 ;
短句来源
    COMPUTER SIMULATION FOR THE MINERAL ELEMENT CYCLE IN THE RED SOIL HILL FOREST ECOSYSTEM
    红壤丘陵森林生态系统矿质元素循环的计算机模拟
短句来源
    A Review of Soil Respiration in Forest Ecosystem
    森林生态系统土壤呼吸研究进展
短句来源
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  森林生态
    These conclusions can provide the technique supportto the developments in forest ecosystem network system.
    这些结论对在森林生态网络体系的建设提供技术支持。
短句来源
    Soil microorganism is very important fact of the reforestation and rebuilding of the forest ecosystem, and also is one of significant assessment index.
    土壤微生物是森林生态恢复与重建的重要参与者,又是重建过程的重要评价指标之一。
短句来源
    Soil microorganism is a very important fact in the reforestation and rebuilding of the forest ecosystem, and also is one of significant assessment index.
    土壤微生物是森林生态恢复与重建的主要参与者,又是重建过程的重要评价指标之一。
短句来源
  森林生态系统
    Research on Structure and Function of Soil Animals in Forest Ecosystem in Da Xinganling Mountains
    大兴安岭森林生态系统土壤动物结构及其功能研究
短句来源
    The evaluation of soil conservation of forest ecosystem in China
    中国森林生态系统保护土壤的价值评价
短句来源
    (4) measuring the activities of soil enzymes in degraded forest ecosystem;
    (4 )退化森林生态系统的土壤酶活性特征 ;
短句来源
    COMPUTER SIMULATION FOR THE MINERAL ELEMENT CYCLE IN THE RED SOIL HILL FOREST ECOSYSTEM
    红壤丘陵森林生态系统矿质元素循环的计算机模拟
短句来源
    A Review of Soil Respiration in Forest Ecosystem
    森林生态系统土壤呼吸研究进展
短句来源
更多       
  “forest ecosystem”译为未确定词的双语例句
    A STUDY ON THE CHARACTERISTICS OF ENVIRONMENT STRUCTURE OF THE FARMLAND SHELTER FOREST ECOSYSTEM——SOLAR RADIATION BALANCE A SHELTERBELT NETWORK
    农田防护林生态系统环境结构特征的研究——农田林网的辐射平衡
短句来源
    Soil nitrogen transformation and cycling in forest ecosystem
    森林土壤氮素的转化与循环
短句来源
    Forest soil is important for forest ecosystem and environment effect by water infiltrating, holding and evaporating.
    森林土壤水分特性,包括水分的渗透与蒸发、保持与贮存等对森林生态环境都有重要意义。
短句来源
    Analysis on the concentration of some sediment elements in their transport process through monsoon evergreen broad-leaved forest ecosystem in Dinghushan, Guangdong Province, China
    鼎湖山季风常绿阔叶林某些沉积元素转移过程中的浓度分析
短句来源
    Characteristics of soil fauna in the Dongjiao coco forest ecosystem in Hainan
    海南东郊椰林生态系统土壤动物群落特征
短句来源
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查询“forest ecosystem”译词为用户自定义的双语例句

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  forest ecosystem
Fine roots have enormous surface areas, growing and turning over quickly, which plays an important role in terms of substance cycling and energy flow in the forest ecosystem.
      
The soil microbial biomass and nutrient status under the native broadleaved forest and Cunninghamia lanceolata plantations at the Huitong National Research Station of Forest Ecosystem (in Hunan Province, midland of China) were examined in this study.
      
Chemical contents in precipitation change significantly when different kinds of external chemical materials are added, removed, translocated and transformed to or in the forest ecosystem along with precipitation.
      
Based on the data collected from 31 plots and 93 soil samples, the state of health of the forest ecosystem is discussed and the appropriate FHA age has been determined.
      
Castanea squinii Dode, an endemic tree widely distributed in China, plays an important role both in chestnut breeding and forest ecosystem function.
      
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During 1986-1988, a thorough investigation on the forest soils in the Nature Reserve of Mount West Tianmu was made, digging 33 soil profiles and collecting no soil samples whose physic-chemical properties, forms of iron oxides and clay mineral compositions were analyzed. The results showed that the forest soils in Mt. West Tianmu underwent a process of medium desilicifi-allitization, forming clay minerals which were mainly consisted of chlorite, illite and gibbsite under the temperate and humid climate. The...

During 1986-1988, a thorough investigation on the forest soils in the Nature Reserve of Mount West Tianmu was made, digging 33 soil profiles and collecting no soil samples whose physic-chemical properties, forms of iron oxides and clay mineral compositions were analyzed. The results showed that the forest soils in Mt. West Tianmu underwent a process of medium desilicifi-allitization, forming clay minerals which were mainly consisted of chlorite, illite and gibbsite under the temperate and humid climate. The strongly weathered red-paleosol, residual in local districts, had been blacking, etiolating or brounifying under the later natural conditions (mainly climate and vagetation). The organic matter had been accumulating and converting at a moderate speed, producing the soil humus in which the active humic acid predominated. Therefore, the forest soils of Mt. West Tianmu, whose various properties were of high qualities, played an important role in preserving the good forest ecosystem of Mt. West Tianmu.

1986~1988年,作者对西天目山森林土壤作了详尽的勘查,共挖剖面33个,采土样110个,作理化性质、氧化铁形态和粘粒矿物组成等的分析。结果表明:西天目山森林土壤在温凉湿润的水热条件下,经历着中等强度的脱硅富铝化过程,形成以2∶1型及三水铝石为主的粘粒矿物。残留于局部地区的深度风化的古红土母质,在后续的自然条件(气候、植被)下进行着黑土化、次生黄化或棕黄化过程。有机质在森林植被和水热条件的共同影响下,进行着中等速度的积累与转化,形成以活性腐殖酸为主的土壤腐殖质组成、各种性状都比较好的森林土壤,在维护西天目山良好的森林生态系统中占据着十分重要的地位。

The paper expounds the importance and purpose of compilation stamdard of forest distribution map of China's Ecosystem Research Network.Meanwhile,the legend system and forest distribution system as well as their relationships with cartography are studied according to standard by taking Dinghu Mountain Research Station of forest ecosystem as an example.

本文阐述了研制“中国生态系统研究网络台站森林分布图编制规范”的重要意义与用途 ,同时 ,以鼎湖山站为例 ,依据“规范”对图例系统和森林分类系统以及制图之间的关系进行了探讨

Soil carbon is the main part of terrestrial carbon pool, and the total amount of soil organic carbon is about 1 270 Gt C globally. Climate changes influence plant production and decomposition rate of plant debris in/on soils, which contributes to the alterations of carbon fluxes between soils and the atmosphere, and can make great impacts on concentration of atmospheric CO 2. Soil organic matter model is the only practical tool for the carbon cycle researches at ecosystem level, many kinds of which have...

Soil carbon is the main part of terrestrial carbon pool, and the total amount of soil organic carbon is about 1 270 Gt C globally. Climate changes influence plant production and decomposition rate of plant debris in/on soils, which contributes to the alterations of carbon fluxes between soils and the atmosphere, and can make great impacts on concentration of atmospheric CO 2. Soil organic matter model is the only practical tool for the carbon cycle researches at ecosystem level, many kinds of which have been developed up to now. A great number of studies suggest that 14 C measurement is an important method for the research on constitution of soil organic carbon and residual times of different components, soil organic carbon is composed of a series of components with different residual times. Grain size, mineral composition and soil texture are the main characteristics of soils controlling the amount and occurring states of soil organic carbon, and exert great impacts on the turnover of soil carbon with long residual times. Studies on the amount and dynamics of soil organic carbon could provide valuable theoretical bases for the predictions about alterations of agricultural and forest ecosystems under the influences of global changes.

土壤碳是陆地碳库的主要组成部分,全球土壤有机碳总量达1270Gt。气候变化影响植物生长、植物碎屑分解速率以及土壤—大气碳通量,这对大气CO2含量有重要影响。土壤有机质模型是研究生态系统尺度土壤碳循环的唯一可用工具,目前已开发出多种。大量研究表明,14C测试是研究土壤有机碳组成及驻留时间的重要手段,土壤有机碳由一系列具不同更新时间的组分构成。土壤粒级组成、矿物特征及土体结构等内在因素制约土壤有机碳存量及状态,对于长时间尺度碳的更新具有重要意义。研究不同气候带土壤有机碳储量及动态变化特征,可为预测未来农、林生态系统变化提供理论依据。

 
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