1) natural broad-leaved forest
天然阔叶林
1.
The base for collecting seeds of natural broad-leaved forest is established in the experimental zone of Huangsang nature reserve,with the area of 733.
在国家级黄桑自然保护区的实验区建立天然阔叶林采种基地,基地面积733。
2.
The chemical property changes of natural and artificial regeneration soils were studied after the natural broad-leaved forest was cut and burn two years later.
通过研究天然阔叶林砍伐后炼山，不同更新方式土壤化学性质的变化，结果表明：人工更新和天然更新２年后与原始林地在０～２０ｃｍ和２０～４０ｃｍ土层中相比都对土壤养分有影响，尤其土壤有机质、全氮、水解性氮和速效磷都下降，速效钾却增加，人工更新比天然更新对保持土壤肥力作用更大。
2) natural broad leaved forest
天然阔叶林
1.
In order to provide the basic foundation of sustainable management practice of natural broad leaved forest in Fujian province, the basis of working group organization, the relation between every organizational basis, the organizing and naming of working group and the main points of management systems in every working group of natural broad leaved forest in Fujian province was studied in the pape
对福建天然阔叶林经营类型的组织依据、各组织依据之间的关系、各经营类型的组织及命名和各经营类型的经营措施体系要点进行探讨 ,为福建天然阔叶林可持续经营的实践提供基础依
2.
In order to provide the basis of the sustainable management of natural broad leaved forest in the mid subtropical zone, a brief review on the function and management techniques of the natural broad leaved forest in the mid subtropical zone is taken in this paper.
本文对中亚热带天然阔叶林生态功能和经营技术研究进行综述，旨在为中亚热带天然阔叶林可持续经营提供基础依据。
3) natural deciduous broad-leaved forest
天然落叶阔叶林
1.
Comparisons were made among larch plantations dominated by Larix kaempferi of different ages (namely, 5 years, 15 years, and 45 years after being planted) and natural deciduous broad-leaved forest (ca.
在四川卧龙国家自然保护区,以天然落叶阔叶林(约100年生)为对照,选择新种植(5年生)、幼年(15年生)和成熟(45年生)的3种落叶松种植林,采用引诱法分别在地表和地上1·5m处取样,研究处于不同恢复阶段林地中的嗜尸性甲虫物种多样性及其变化格局。
4) natural evergreen broad-leaved forest
天然常绿阔叶林
1.
Soil carbon pool and fertility under natural evergreen broad-leaved forest and its artificial regeneration forests in Southern Sichuan Province;
川南天然常绿阔叶林人工更新后土壤碳库与肥力的变化
5) Residual secondary natural broadleaved forest
残次天然阔叶林
6) natural evergreen broadleaved forest
天然常绿阔叶林
1.
Fractal features of soil aggregate structure under natural evergreen broadleaved forest and regeneration of artificial systems is rarely s.
运用分形模型研究了川南天然常绿阔叶林及其人工更新成檫木(Sassafrastzumu)林、柳杉(Cryptomeriafor-tunei)林和水杉(Metasequoiaglyptostroboides)林后土壤团粒结构,探讨了分形维数与林地土壤水源涵养功能、肥力特征和微生物数量之间的关系。
2.
This paper studied on the litter amount,natural water content and water holding characteristics of litter layer under the natural evergreen broadleaved forest and three artificial plantations,Sassafras tzumu,Cryptomeria fortunei and Metasequoia glyptostroboides forests,which formed by natural evergreen broadleaved forest artificial regeneration.
对川南林区天然常绿阔叶林及其人工更新成檫木林、柳杉林和水杉林后林下枯落物层蓄积量、自然含水量和持水过程进行研究。
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