在这些实验和实地观测的基础上，人们制定了所谓的竞争排斥定律，根据该定律，没有两个物种可以占据相同的生态龛。
On the basis of these experiments and of field observations, the so-called law of competitive exclusion was formulated, according to which no two species can occupy the same niche.
在西安市选取了数十条人行横道进行实地观测。
Field observations were carried out at dozens of crosswalks in Xi an.
听完解说后我们来到户外实地观测，天空已经变暗了。
After hearing the briefing, we walked outside to watch the eclipse. The sky had already become dimmer.
经试验和实地观测可以达到要求，从而解决了壁画复制过程中的几何控制问题。
The experimental observations indicate that this method can meet the accuracy requirements, thus providing a tool to solve the geometric control problem in fresco reproduction.
实地观测结果表明：煤矸石山生境在昼间的空气相对湿度呈“V”字型变化趋势。
The results of observation on the spot showed that the variation of air relative humidity in the gangue pile habitat at daytime took on a "v" shape trend.
试从主要气候因素作用于人体的方式，结合实地观测资料，探讨人体的气候适宜度。
In thebesed on the way of the body effected by the main climatic factors, combining information of observation, research on a climatic suitable index to the body.
为探讨黄壤水分的变异性，采用实地观测的方法，获取了贵州中部黄壤坡地水分数据。
The moisture data of Xanthozem sloping land in Central Guizhou were obtained by on-the-spot observation to study moisture variation of Xanthozem.
前人通过实地观测的常规方法，证明了增加肥料投入是土壤增汇、粮食增产的关键措施。
Previous researchers through conventional field observation methods had proved that to increase fertilizer input was the key measure to enhance soil carbon sequestration and crop yield-increasing.
这些方法以开采沉陷理论为依据，且建立在实地观测基础上，因此，按这种方法鉴定所获得的结论是客观公正的。
These methods are based on the theory of mining subsidence and field measurement. Therefore, the conclusions acquired by these methods are objective and rightful.
方法应用物质量和价值量相结合的方法，借助ARCVIEW地理信息系统技术，根据不同林分在不同区域的实地观测值进行估算。
Methods The forest ecosystem service is evaluated by the method of material valuation, the ARCVIEW geographic information system technique, and the observation on the spot in the different regions.
很多人种学实地研究致力于此，但是依旧总是出现一些观测偏差。
Many ethnographic field studies attempt to do this, though there are always some observation biases.
通过野外实地调查和定位观测，系统研究了灌木林盖度和高度对地表风况及空气动力学参数的影响。
The impact of shrub coverage and height on surface wind and aerodynamic parameters is systematically studied through field study and fixed observation.
利用洞庭湖水文观测站、环境监测站和实地考察资料，分析了洞庭湖湿地对氮（N）、磷（P）污染的净化功能。
Useing of Dongting Lake hydrological observation stations, environmental monitoring data and on-the-spot investigation, Analysising of the Dongting Lake wetland on the N, P pollution-purification.
地震观测和实地调查表明，长江三峡工程周缘广泛存在采矿诱发地震。
The results of observation by intensified seismic network and field investigation indicate that mining induced earthquakes are widely distributed around the Yangtze Gorge Project.
通过野外实地调查和定位观测，系统研究了灌木林盖度对风沙土风蚀的影响。
Through field investigation and observation, the influences of shrub coverage on soil erosion by wind were systematically studied.
通过对塔克拉玛干沙漠中部部分地区的气象资料分析、野外实地风沙观测和理论计算，对其风沙环境特征作出了一些初步分析。
With the adverse circumstances, the characteristics of blown sand environment in the hinterland of the Taklimakan Desert up to now can not be acknowledged on the basis of the quantitative analysis.
结论为：（1）实时实地地测量电离层参数并以同一时间尺度对观测数据作电离层改正是评比各种方法的依据。
The main conclusions are: (1) The criteria to compare various methods are that the ionospheric parameters must be measured in real time and position as the observation of individual radio source;
使用循环采样设计方案，对海北沼泽化湿地生态系统涡度相关通量观测塔的通量贡献区内叶面积指数进行了实地调查。
Cyclic sampling design was used to investigate leaf area index(LAI)in flux contributing source of eddy covariance flux tower swamp ecosystems of Haibei.
通过定点观测、实地试验等方法，得出植被恢复对矸石山土壤改良效益显著，特别是对土壤中的有毒元素具有净化作用。
The result is that soil improved effects of re-vegetation in coal waste piles are obvious, especially purifying poisonous elements.
以西溪湿地为例，运用实地发放调查问卷和观测的方法取得一手资料，分析得出游客成熟度、旅游动机、游客时空分布等特征；
SPSS is used for statistical analysis. As a result, tourist maturity, travel motivations, and the characteristics of tourist temporal and spatial distribution are analyzed.
以西溪湿地为例，运用实地发放调查问卷和观测的方法取得一手资料，分析得出游客成熟度、旅游动机、游客时空分布等特征；
SPSS is used for statistical analysis. As a result, tourist maturity, travel motivations, and the characteristics of tourist temporal and spatial distribution are analyzed.
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