Inter-specific association of dominant species in Baihua Mountain meadow of Beijing.;
北京百花山草甸优势种的种间关联性分析
Seasonal Variation of Surface Fluxes of two Species Meadows on the Qinghai-Tibet Plateau;
青藏高原两种草甸地表通量季节变化特征
Impacts of tourism on water storage and regulation of meadow soil in Napahai lakeshore wetlands
旅游干扰对纳帕海湖滨草甸湿地土壤水文调蓄功能的影响
The Inspection of the Complications in the Patients Implanted Cardiac Permanent Pacemakers and the Resolving Methods;
250例永久心脏起搏器置入术后并发症及处理
From the Transitional to Permanent:Thinking about Outside-classroom of Educational Buildings in Post Earthquake Reconstruction
从“过渡”到“永久”——教育建筑灾后重建“教室外”的思考
Objective Glass inomer is used to line between the side walls of the cavity and the permanent silver restoration, thus eliminating the possibility of bacteria penetrating the space between enamel and restorative material to prevent the possible secondary decay.
目的 永久性充填后牙体与充填物之间的微缝隙 ,防止渗漏 ,减少继发性龋病的发生。
Using the comparion theorem of difference equation, persistence theorem of discrete semi-dynamical system and stability of monotonous operator, we gain the boundary, uniform persistence and permanence of the system.
应用差分方程的比较原理 ,离散半动力系统的持久性定理以及单调算子的三分稳定性 ,获得系统的有界性 ,一致持久性 ,永久持久性 。
Using the theorem on discrete semi-dynamicl system and the stability results on monotonous and continuous operator,we obtained the sufficent conditions for uniform boundness,strong and weak persistence and permanence of a discrete system with age-structure subdivided into young and adult population approximately.
应用差分方程的比较原理、离散半动力系统的持久性定理和单调连续算子的三分稳定性获得了一类捕食者具有年龄结构 ,即将捕食者近似地分为幼年和成年种群的离散捕食系统一致有界、弱持久、强持久和永久持久的一组充分条件 。
Analysis on Temporal Variation of FPAR on Leymus Chinensis Meadow-steppes
羊草草甸草原FPAR时间变化规律分析
Study on the Photosynthetic Pigments of Leymus chinensis along with the Salinity-alkalinity Gradients on the Songnen Grassland inNortheastern China;
松嫩盐碱化羊草草甸草原羊草光合色素的研究
Research on Heterogeneity of Tibet Alpine Meadow Grassland Biomass;
西藏高寒草甸草原生物量异质性研究
The index system of the ecological quality evaluation for subalpine meadow
亚高山草甸类草地生态质量评价指标
The difference at other grazing intensity was not significant.
其它放牧情况下的草甸差异不明显。
The Experimental Study of Manual Synthesis Subalpine Meadow Forest Soil;
人工合成亚高山草甸森林土实验研究
The Study on Soil Phosphorus in the Major Communities of Songnen Meadow;
松嫩草甸主要植物群落土壤磷素研究
Brief Reviews of Study on the Photosynthetic Properties of Alpine Meadows on the Tibetan Plateau
青藏高原高寒草甸光合特征研究简述
The Influence of "Black Beach" to Soils Nutrient on Alpine Meadow
高寒草甸“黑土滩”对土壤养分的影响
The Dynamic Features of Alpine Potentilla fruticosa Shrub Meadow Vegetation Reflectivity
高寒金露梅灌丛草甸植被反射率特征
Analysis of chemical composition of plants in subalpine meadow on Mt. Xiaowutai
小五台亚高山草甸植物化学成分研究
Study on Sustainable Utilization of Meadow Steppe at Edge of South Mongolia Altiplano;
内蒙古高原南缘草甸草原可持续利用研究
The Best Improvement Measures Established in Degradation Meadow of Zhaosu Horse Farm;
昭苏马场退化草甸草地最佳改良措施的确立
Reproduction Strategy and Transplant Experiment of Kobresia Humilis;
高寒草甸矮嵩草（Kobresia humilis）繁殖对策与移栽试验
Effect on the Meadow Rangeland and Lactating Performance Characters of Sanhe Cow of Grazing System;
放牧制度对草甸草原与三河牛泌乳性能的影响
A Study on Grazing Degenerate Succession of Alpine Meadow in North-west of Sichuan;
川西北高寒草甸草地放牧退化演替研究
Studies on Physioecological Traits of 30 Plant Species in the Subalpine Meadow of the Qinling Mountains;
秦岭亚高山草甸30种草本植物的生理生态特征
The Effect and Evaluation of Improvement of Degraded Meadow Grassland in Horqin Sandy Land
科尔沁退化草甸草地改良效果及其评价研究