quadratics
1. 1997-1999 year winter, the summer season, uses the quadrat survey procedure, has carried on the monitor to the ever green nature protection area panda habitat choice.
1999年冬、夏季节,采用样方调查法,对长青自然保护区大熊猫栖息地选择进行了监测。
2. quadratics of n variables
n元二次式
3. meter permanent quadrat
一平方米定位样方
4. meter quadrat
一平方米样方
5. point-quarter sampling and quadrat method
中心点四分法附设样方
6. temporary quadrat
临时样方
7. Quadratics rotary orthogonal combination design
二次旋转正交组合设计
8. leaf area index(LAI) and canopy openness,of an urban forest stand in Maofengshan,Guangzhou,were estimated using hemispherical photography in parallel with quadrat plant census.
以样方法为基础,用半球面影像技术估测了广州市帽峰山常绿阔叶林的2种冠层结构参数,即叶面积指数(LAI)和林冠孔隙度。
9. area-list quadrat
优势记名样方
10. The quadrat sampling technique is mostly used in plant ecology to study the distribution and abundance of species in plant communities.
其内部的生物体被标记,样方抽样技术多用于植物生态学领域,用来研究某一植物群落中物种的分布及其含量的多少。
11. The 25 studying quadrats are sorted into 7 quadrat clusters (i. e.Low eco-environment grade and severe fragmentation;
可将研究区25个区县样方可分为低脆弱剧烈破碎区;
12. the quadrat with only A. ordoska appeared to have obviously lower coverage and biomass that the other three quadrats.
同其它3个样地相比,纯油篙样地1年生植物的密度、盖度和生物量明显偏低。
13. chart quadrat
图解样方 图记样方
14. Finally,we measured agronomical parameters and spectrum data at every major quadrat,and established the setting database.
在各类样地上,分别进行农学参数、环境背景参数的观测和波谱特征的测试。最后进行数据整理和背景数据库的建立。
15. basal-area quadrat
基面积样方
16. quadrat of abundance
多度样方
17. permanent quadrat
定位样方
18. small quadrat
小样区
19. Application on degree of closeness of plant quadrat by a images software
应用图像软件对植物样方郁蔽度的分析
20. The root nodules maximums occur in April except for A. ordosice quadrat, and RLD of coarse roots are far little than those of fine roots.
挖沟分层取样研究表明,与柠条相比油蒿具有较高的根冠比;
21. A survey on vegetation at Nanshan Nature Reserve, Shixing, Guangdong, China was made by using quadrat method.Results showed that there were 6 vegetation types.
摘要用植被样方调查法对广东始兴南山自然保护区的植被进行了研究,结果表明该地区具有6种植被型,地带性植被是亚热带常绿阔叶林。
22. quadrat method
方形法 样方法
23. quadrat sampling
方样
24. quadrat index
方格索引
25. quadrat census
方格计数法
26. census quadrat
普查样方
27. minimum quadrat number
最小样方数目
28. minimum quadrat area
最小样方面积
29. The main topics are: determinants, matrices, rank of a matrix, vector spaces, linear equations, eigenvalues and eigenvectors, quadratics.
本课程的基本内容有行列式、矩阵、线性方程组、矩阵的特征值与特征向量。
30. Experimental Study of the Quadratics Rotary Orthogonal Combination Design was Used Balanced Fertilization to Chinese Chestnut
板栗配套施肥的二次旋转正交优化试验研究
31. major quadrat
样地
32. quadrat chart
样方图 方划图
33. quadrat size
样方大小
34. Quadrat variance method
样方方差法
35. quadrat sampling method
样方法
36. point quadrat method
样方测定法
37. quadrat list
样方表
38. quadrat A square area of variable size depending on the study (standard sizes are 0.5 or one meter square to 10m square or more )taken at random, within which the composition of organisms is noted.
样方:由于研究的需要而随机选择的大小(以0.5平方米或1平方米到10平方米或更多为标准的面积)可变的一块区域,称为样方。
39. The transect sampling technique is most often used in plant ecology to study changes in the composition of vegetation.See also quadrat.
样条取样技术在植物生态学或植被组成的变化研究反面应用广泛。
40. Selection of gaining quadrat for harvesting the undergrowth vegetation and its biomass estimation modeling in forest
森林林下植被生物量收获的样方选择和模型
41. Each small quadrat must be more homogeneous than the sociation as a whole
每个小样方必须比整个基群丛更为统一。
42. A Brief Account on Four"Quadratics"in Elementary Algebra
浅谈初等代数中的四个"二次"
43. nested quadrat
渐选样方,逐选样方
44. point quadrat
点样方
45. "Starting from 0 m, place a 50 x 50 cm quadrat at intervals of 10 m along the transect. Within each quadrat frame, do the followings."
由0米开始,每隔10米把一个50厘米x50厘米的样方放下一次,每次都重复以下步骤。
46. Scale effect of sampling quadrat on detection of population pattern
种群分布格局测定的样方尺度效应
47. empty quadrat
空样方
48. stocked quadrat
立木样方区
49. linear quadrat
线性优势等次
50. simultaneous quadratics
联立二次方程式
51. clip quadrat
茎叶干重样方
52. cover quadrat
覆盖样方
53. count quadrat
计数样方
54. list quadrat
记名样方
55. list-count quadrat
记名计算样方
56. The dynamics of the ecotone of Pinus forest community and mixed forest community was studied with 16-years' permanent quadrat analysis and with comparing it to its adjacent communities.
通过对鼎湖山两个群落及其边缘群落的长期定位研究,探讨南亚热带演替群落的边缘效应与森林片断化恢复。
57. plant quadrat
郁蔽度
58. denuded quadrat
除光样方