助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   模糊超体积 在 林业 分类中 的翻译结果: 查询用时:1.116秒
图标索引 在分类学科中查询
所有学科
林业
生物学
园艺
更多类别查询

图标索引 历史查询
 

模糊超体积
相关语句
  fuzzy hypervolume
    Based on the theory of fuzzy hypervolume niche,the niches of 4 tree species in south subtropical zone are studied in order to find the rule of forest succession.
    在模糊超体积生态位理论的基础上,研究了南亚热带4个不同演替阶段树种苗木的生态位,探索森林群落演替的规律.
短句来源
  fuzzy hypervolume
    Based on the theory of fuzzy hypervolume niche,the niches of 4 tree species in south subtropical zone are studied in order to find the rule of forest succession.
    在模糊超体积生态位理论的基础上,研究了南亚热带4个不同演替阶段树种苗木的生态位,探索森林群落演替的规律.
短句来源
查询“模糊超体积”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  fuzzy hypervolume
A minimization of the fuzzy hypervolume makes no sense here.
      
For example, Gath-Geva's index that uses the value of fuzzy hypervolume as a measure is a good choice for compact clusters.
      
Optimalnumber of substructures in the data set can be estimated from the minimum of the fuzzy hypervolume and maximum of partition density.
      
Optimal number of substructures in the data set can be estimated from the minimum of the fuzzy hypervolume and maximum of partition density.
      
The cluster validity is proportional to the partition density and inversely proportionalto the fuzzy hypervolume.
      
更多          
  fuzzy hypervolume
A minimization of the fuzzy hypervolume makes no sense here.
      
For example, Gath-Geva's index that uses the value of fuzzy hypervolume as a measure is a good choice for compact clusters.
      
Optimalnumber of substructures in the data set can be estimated from the minimum of the fuzzy hypervolume and maximum of partition density.
      
Optimal number of substructures in the data set can be estimated from the minimum of the fuzzy hypervolume and maximum of partition density.
      
The cluster validity is proportional to the partition density and inversely proportionalto the fuzzy hypervolume.
      
更多          


Based on the theory of fuzzy hypervolume niche,the niches of 4 tree species in south subtropical zone are studied in order to find the rule of forest succession.3-dimensional niche,which is formed by the ecological factors of pH value,nutrients and moisture,is measured by the net photosynthesis rate.The results indicate as following: niche width of these seedlings can be ordered as Pinus massoniana(0.405 6),Schima super ba(0.361 4),Castanopsis fissa(0.310 8) and Cryptocarya concinna(0.306 8),which corresponds...

Based on the theory of fuzzy hypervolume niche,the niches of 4 tree species in south subtropical zone are studied in order to find the rule of forest succession.3-dimensional niche,which is formed by the ecological factors of pH value,nutrients and moisture,is measured by the net photosynthesis rate.The results indicate as following: niche width of these seedlings can be ordered as Pinus massoniana(0.405 6),Schima super ba(0.361 4),Castanopsis fissa(0.310 8) and Cryptocarya concinna(0.306 8),which corresponds to the dominant(tree) species' order at different successional stages.Niche overlaps of these seedlings show the rather intense interspecific competition in the mass because of the minimum value 0.682 7.The competition coefficient in the interval [0.635 9,0.735 7] showes the tendency of the species avoiding competition which administers the species coexistence.The maximum difference of 0.126 2 and the minimum difference of 0.036 1 for niche overlap can be gained by using the principle of Cody & May and thus it is a good practice to avoid this principle.mathematical ecology;niche;fuzzy hypervolume;niche width;niche overlap;net photosynthesis rate;competition coefficient

模糊超体积生态位理论的基础上,研究了南亚热带4个不同演替阶段树种苗木的生态位,探索森林群落演替的规律.以所测定的净光合作用强度值为指标,度量包括pH值、矿物质营养浓度、土壤含水量三个生态因子的三维生态位.结果表明:生态位宽度的大小次序为马尾松(0.405 6),荷木(0.361 4),藜蒴(0.310 8)和黄果厚壳桂(0.306 8),正好对应演替不同阶段的优势种;生态位重叠最小值为0.682 7,表示总体上物种对资源的竞争较激烈;种间竞争系数介于0.635 9和0.735 7之间,表示物种间有回避竞争的趋势,这往往有助于物种共存;利用Cody和May的原则会带来生态位重叠的偏差最大为0.126 2,最小为0.036 1,因此应该避免使用Cody和May的原则.

 
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关模糊超体积的内容
在知识搜索中查有关模糊超体积的内容
在数字搜索中查有关模糊超体积的内容
在概念知识元中查有关模糊超体积的内容
在学术趋势中查有关模糊超体积的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社