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- There are still some problems in the permanent sample plot database, so using the database for carbon sequestration approximations often result in overestimation. 不过,永久样区设置与资料仍有许多不足,用来估算国有林地蓄积量与碳吸存量容易有高估的情况发生。
- permanent sample plot 永久标准地
- A sample plot of the unstable frequency with crank speed is illustrated. 绘制了不稳定频率相对于曲柄速度的样本曲线。
- Within the stand one sample plot is laid down, often covering a large part of the stand. 在群落片段范围内设置一个样地,通常应占据群落片段的大部。
- Thus setting up a single sample plot in an area can produce some rather bewildering result. 因此,如果在某个地区内只在某单块抽样小区内采样,那末就可能得到某种较为含糊的结果。
- Cumulation in each sample plot was a little different with the annual litter production. 各样地的蓄积量多少与年凋落量有一些差异。
- The typical sample plot with Sophora viciifolia was take as research object in the Zhifanggou catchment of the hilly gully Loess Plateau in July 2002. 于2002年5月份,在陕北黄土区纸坊沟流域选择狼牙刺典型样地,以柠条、撂荒地作为对照。
- The relationship between the zokor occurrence and canopy density was studied in 5 different types of 11-year-old improved secondary forests ny regular sample plot survey. 摘要通过对次改林地11年的鼢鼠发生和林分郁闭度关系研究发现,鼢鼠密度上升期,鼢鼠密度、雌雄比与郁闭度呈递增关系,成亚比与郁闭度呈递减关系;
- The paper uses typical sample plot method of forest ecology to obtain field data,and the Walkley-Black acid digestion method for measuring the carbon in the forest and soil is used in this paper. 运用森林生态学典型样地法设立标准地并获取野外数据,采用重铬酸钾-硫酸氧化湿烧法测定植物、土壤中的碳。
- Based on the locating monitoring and sample plot investigation, this paper discussed the structural feature and biomass of soil and water conservative plantation of Armand pine in the upper reach of the Yangtze river. 通过定位监测与样地调查,分析了长江上游华山松水土保持人工群落的的结构特征,并对其生物产量进行了测定。
- The result shows that there are 127 tree species,76 arbor tree species and 51 shrub tree species,in sampling plot. 结果表明:在1 hm2样地内,共记录到木本植物127种,其中乔木为76种,灌木51种。
- Nothing can assure permanent happiness. 没有什么东西能确保永久的幸福。
- I'm looking for a permanent appointment. 我正在寻找固定的工作。
- The silly ending robs the plot of any credibility. 这愚蠢的结尾使得整个情节变得一点都不可信。
- Plus tree selection by sample plot method 标准地法选优
- She is looking for permanent employment. 她正在找固定的工作。
- On the basis of the data collected from the measurement of the sample plots of the cutting plantation and seedling plantation of Pinus kesiya var. 依据相同立地条件下同龄人工林样地调查数据,分析比较思茅松扦插苗与实生苗造林效果的差异。
- Her jealousy is the mainspring of the novel's plot. 这部小说情节中贯穿了她的忌妒之心。
- They established their permanent abode here. 他们在此建立了永久居所。
- Kyllinga brevifolia + Cyperus rotundus + Cynodon dactylon in Zhaoqing.The weed communities of 32 sample plots could be classified into 5 groups. 肇庆市以水蜈蚣+香附子+狗牙根为主二通过聚类分析可以将32个样点分成5个组。