查询词典 index forest
- 与 index forest 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Across the altitudinal gradient, a total of 12635 individuals belonging to 6 phyla, 15 classes and 33 orders were collected. With increasing altitude, the density of soil fauna decreased, but the group number was less affected. There was a higher co-occurrence of soil faunal communities along the altitudinal gradient, and Nematoda, Acarina, and Collembola were the dominant groups. Below the altitude 370 m, the Shannon-Wiener index, Pielou index, and Margalef abundance index increased with increasing altitude; while above the altitude 370 m, the Shannon-Wiener index and Pielou index decreased but the abundance index increased after an initial slight decrease.
结果表明:土壤动物密度随海拔升高而下降,类群数受海拔影响较小,各海拔群落的共有度较高,优势类群基本均为线虫、蜱螨目和弹尾目;Shannon-Wiener指数、Pielou均匀度指数及Margalef丰富度指数仅在海拔370 m以下随海拔升高而增加,而在海拔370 m以上,Shannon-Wiener指数与Pielou均匀度指数下降,丰富度指数在略有下降后再次上升。
-
TIA as one project examination and approval procedures , need its corresponding examination and approval index, author from system appraisal angle , divide every index to TIA into four kinds according to their appraisable characteristic, namely basic background index, ensuring supply index, appraising the influencing index and improving synthetically index.
交通影响评价作为一项工程审批程序,需要有其对应的审批指标,作者从系统评价角度,将交通影响评价的各项指标按其评价特点分为四类:基础背景性指标、保障供给性指标、评价影响性指标和综合改善性指标。
-
Landscape difference are not relative with biota index in this research. There are negative between MPFD index and bird index in class level, it meas the mor complex of the land patch shape the lower dird index. And last in LSIM index are negative relative with bird index.
在土地利用层级的地景歧异度分析与生物的歧异度分析结果在本研究中没有相关,在土地利用类别层级的指数计算方面,碎型维度与鸟类歧异度呈现负相关,表示土地使用形状越复杂,鸟类歧异度越小;而最大地景比例的部份,则与鸟类歧异度成负相关。
-
"Davidia involucrate" was a rare valuable and endangered plant in China. In this article, We studied the distribution pattern of its population with t test of Dispersal index, X^2 test of Poisson distribution and F test of Morisita's index. Its assemble intensity is also analyzed through Negative binomial index, Green's index, Lloyd's index and Patchness index.
采用扩散系数的t检验、Poisson分布的x^2拟合检验及Morisita指数的F检验来研究珙桐种群的空间分布格局类型,用负二项参数、Green指数和Lloyd的平均拥挤度m(上标*与聚块性指标来研究珙桐的聚集强度。
-
While for some indexes,such as length of medial longitudinal arch,length of lateral longitudinal arch,height of first metatarsophalangeal articulations,there is no longer changing with increasing load after adapting to a relatively lighter load.There is marked difference on the foot shapes between different items youth track man,especially for the throwers.Finally,five dimensions of foot morphological characteristics were found to establish the foot-shape-index-system,which are respectively metatarsophalangeal index,heel index,ankle index,arch of foot index and length of foot index,including 15 items.
更多载荷变化的影响;我国青年田径运动员的内侧纵弓长、外侧纵弓长、第一跖趾高、足背高、拇趾偏角、足跟面积等指标在一定载荷范围内变化明显,但超过承重范围则不再因载荷增大而变化;不同专项的青年田径运动员的足部外形指标间存在明显差异,以投掷项目运动员的差异最为突出;足长度指标、跖趾部指标、足弓部指标、足跟部指标、足踝部指标共15项内容为代表我国青年田径运动员足部外形特征的指标体系。
-
This thesis attempts to innovate at two points, as follows:Theoretically, it endeavors to explore the value of SA from the aspect of index error. It analyzes the source of indices\' error, uses its theoretical meaning and economical significance to put forwards some methodic suggestions to some index-related issues, such as calculation of weights in index, evaluation of index formulas, structure analysis of layered issues, and etc.Practically, this thesis quests for the settlements of some difficulties in China\'s compilation of macroeconomic price index by the means of SA. Besides, it tries to make an innovative use of SA to Regional Economics. Improving on Theil\'s index with SA, it makes an empirical study on China\'s regional disparities since reform-policy was adopted.
本文尝试在以下两方面有所创新:理论研究方面,从指数误差的角度挖掘随机指数的理论价值,并围绕误差来源及其本身的理论内涵和经济意义,探讨了诸如指数权数确定、公式选择、分层指数的结构分析和可信度检验等疑难问题;实践应用方面,就价格指数编制实践中的一些具体问题(如基本价格指数的公式选择、高层汇总的权数确定等)提出了随机指数方法的改进方案,并将该方法首次拓展到区域经济学,通过随机方法下泰尔指数及其分解分析的运用,对改革开放以后中国区域经济差距的问题进行了实证研究。
-
Dactylon, M. triquetra. At tillering, species richness, Simpon index and Shannon-Wiener index are higher while Pielou index is lower in SF than in CK. From booting to ripening, weed species richness, Simpon index and Shannon-Wiener index are lower while Pielou index is significantly higher in SF than in CK.
研究还表明,规模稻鸭生态种养水稻分蘖期物种丰富度、Simpon指数、Shannon-Wiener指数略高于水稻单一种植,Pielou指数低于水稻单一种植;孕穗期到成熟期物种丰富度、Simpon指数、Shannon-Wiener指数低于水稻单一种植,Pielou指数显著高于水稻单一种植。
-
Department of forest sciences is primarily dedicated to education and research in forest sciences including developing forest ecosystem management, improving forecasts of forest growth and yield, designing cost-effective forest regeneration practices, natural resources management, biometeorology, soil microbiology and biochemistry, horticulture and agronomy, animal science.
森林科学系主要致力于森林科学的教育及研究,其科学领域包括发展中的森林生态系统管理,改良森林生长和生产量的预测,森林重建实践的成本有效设计,自然资源管理,生物气象学,土壤微生物学和生物化学,园艺和农学,动物科学。
-
To study the effect of nematode-induced forest succession on avian communities, we chose three forest types at different seral stages, including evergreen broad-leaved coppice infested by the pine wood nematode for five years and evergreen broad-leaved forest infested for 12 years, both from Xiangshan County, Zhejiang, and one 40-year-old evergreen broad-leaved forest from Tiantong National Forest Park, Zhejiang.
为了探讨在松材线虫侵袭所引起的森林演替过程中植被结构变化对鸟类群落的影响,我们研究了这此常绿阔叶演替林中的鸟类群落结构。2004年5-6月,我们在浙江省宁波市选择了分别处于3个不同演替阶段的7个样地:包括象山县被松材线虫侵袭5年后的常绿阔叶灌丛和侵袭12年后的常绿阔叶林样地各3个,同时在天童国家级森林公园选择了约40龄的常绿阔叶林样地1个。
-
According to the present situations of protected area in China and referring to the definition and category abroad, we suggested the forest natural protected area mainly include three types as follow: Nature Reserves (NR; types of forest eco-system), Forest Parks and Public Welfare Tree Farm. Researches of evaluation on ecotourism resources of forest natural protected area focused on two aspects basically: to appraise and account the ecotourism resources monetarily from the standpoint of pure economics; to assess the exploitability of ecotourism resources based on the theories of conservation biology and ecology, in which finding the reasonable equilibrating point between protection and: utilization was emphasized. On the studies of development pattern of forest ecotourism resources, it is necessary to deal with the relationship between protection and exploitation correctively, namely to put the protection as the first consideration and balance the "Tree r.1ajor Benefits" so that prompting the virtuous circle afforest ecotourism.
根据我国自然保护地的实际情况,参考国外自然保护地的定义与分类方式,可认为我国的森林自然保护地主要应主要包括森林生态系统类型自然保护区、森林公园及公益林场三种类型;森林自然保护地的生态旅游资源评价研究主要集中在两方面:一是单纯地从经济学角度对旅游资源游憩价值进行货币化评价与核算,二是从保护生物学和生态学角度对资源的可开发性进行评价,其侧重在于找到保护与开发的的科学平衡点;在森林自然保护地旅游资源的开发模式研究上,必须正确处理开发与保护的关系,把保护放在第一位,坚持"三大效益"兼顾的原则,才能实现森林生态旅游资源开发与保护的良性循环。
- 相关中文对照歌词
- Peace Sign / Index Down
- In The Forest
- Forest For The Trees
- Queen Of The Forest
- Forest Fire
- Forest Full Of Needles
- Part IV (The Index Fossil)
- Index
- They Pray With Snakes (Remix)
- Forest Lawn
- 推荐网络例句
-
Vishnu entered a dark fourth dimensional dream that did not support his field or continued life.
毗瑟挐进入了一个第四密度的黑暗梦想,那里并不支持他的能量场或继续生命。
-
Leaders and decision-making persons use it to collect the data, including the information of unit work, handing in fee, oweing fee, prepaying fee,changing and afterpaying and account transfering of joining-insurance employee, and account paying of all kinds of insurances from hospitalization insurance institutions.The collected data is picked up, organized, switched and showed to user.
该子系统主要面向各级领导、决策分析人员;从各个医疗保险经办机构和定点医疗机构采集数据,包括在各个医疗保险经办机构处理的单位办公信息,单位缴费、欠费、预缴费信息,参保职工变更信息,参保职工增减变动信息,参保职工补缴信息,参保职工帐户划拨信息:包括各定点医疗机构处理的各险种帐户支出信息,各险种的统筹金支付信息等;将采集的数据提取,组织和转换,然后展示给用户。
-
BaTan focus on the town in order to speed up the construction of the town as an opportunity to carry first to target in order to handle the project for a breakthrough to achieve industrialization and urbanization as a development engine.
八滩镇以加快重点镇建设为契机,以进位争先为目标,以项目突破为抓手,把实现工业化、城镇化作为发展的重要引擎。