查询词典 decrease in population

The population density was different at various altitudes, and among them, the biggest one was the population C. The life tables showed that the death rates at age class Ⅱ,Ⅲ,Ⅳ were higher, so the death rates decreased with the diameters class increasing, after age class Ⅳ or Ⅴ, however, the death rates increased again. The expected life was longer before class Ⅳ, and decreased gradually with the age increasing. The survival curves of different populations was close to Deevey Ⅲ type. The dynamics of C.

不同海拔的种群密度存在差异，其中C种群密度最大；静态生命表显示，种群在Ⅰ、Ⅱ径级时死亡率较高，随着年龄增加，死亡率逐渐降低，但到了Ⅳ、Ⅴ径级，由于生理衰老死亡率又上升；种群期望寿命在Ⅱ、Ⅲ、Ⅳ径级较高，随着年龄增加，期望寿命逐渐下降；不同海拔的米槠种群的存活曲线均接近于Deevey Ⅲ型。

As a result, the P schrenkiana population has reverse-J shaped DBH class, age structure and tree density patterns but with a bell-shape biomass pattern. The Schrenk spruce population also has a classical linear survivorship curves between Deevey Ⅱ and Deevey Ⅲ type.

研究结果表明中部天山雪岭云杉种群的胸径、年龄结构和种群密度都呈倒－J型分布，种群生物量呈钟型分布，存活曲线基本介于Deevey Ⅱ和 Deevey Ⅲ型之间。

The result shows that the Giant Panda habitat in Gansu is an under-plant population of forest communities with Fargesia denudate as the dominant species; that Giant Panda make movements at the altitudes ranging from 1 600 m to 2 000 m in Wenxian County and Diebu County; that the characteristics of bamboo population, geographical environment, along with the integrity of forest communities, are taken as the three dominant factors in influencing the life of Giant Panda;and that the features of the habitat are basically stable but reasonable distribution together with strong artificial disturbance is considered as the potential factor resulting in the habitat unstable.

结果表明：甘肃省大熊猫主要栖息在以缺苞箭竹为优势的下木种群森林群落中，其垂直活动范围主要集中在海拔1 600～2 800 m处，水平分布在文县和迭部一带；竹类种群的特性、地理环境和森林群落的完整性是大熊猫栖息生存的3个主要综合要素；甘肃省大熊猫的生境特征基本稳定，但该区竹类种群的正态性分布和人为干扰强度是构成其生境不稳定的重要潜在因素。

Maonan . And 20 ethnic groups have a population of between 10,000 and 100,000: Blang, Tajik, Pumi, Achang, Nu, Ewenki, Jing, Jino, Deang, Ozbek, Russian, Yugur, Bonan, Moinba, Oroqen, Drung, Tatar, Hezhen, Gaoshan (excluding the population of the Gaoshan ethnic group in Taiwan) and Lhoba.

和20个民族群体的人口之间的10000和100000 ：布朗，塔吉克，普米，阿昌，怒族，鄂温克族，京，基诺， Deang ， Ozbek ，俄罗斯，裕固，渤， Moinba ，鄂伦春，独龙江，塔塔尔，赫哲，高山（不包括人口的高山族族群在台湾）和珞巴族。

Population Researcher Paul Earlike, for example, wrote a 1968 book called the population bomb.

举个例子来说，人口研究者Paul Earlike1968年写了本书《人口爆炸》。

There was no difference in the sensitivity or specificity of the Ectasia Risk Score System in the population from which it was derived and this independent population of ectasia cases and controls.

在此由角膜扩张病例和对照病例构成的独立人群中，角膜扩张风险评分系统的敏感性和特异性没有差别。

The result showed that the clustering degrees of the populations of Hippuris vulgaris,Eleocharis valleculosa and Blysmus sinocompressu increased first and then decreased from the invasive stage, settle ment stage to culminative developmental stage. While the clustering degree of the population of Suaeda glauca increased from seedlings to propagation in which the population appeared aggregation.

研究表明：杉叶藻、槽杆荸荠、华扁穗莞三种群由侵入期、定居初期到种群发育盛期的过程中，其集群程度先增大后减小，总体呈扩散的趋势；碱蓬种群，从幼苗到繁殖期，集群程度增大，呈聚集的趋势。

Chapter 5 is about population growth and population policy based on endogenous growth theory.

第5章基于内生增长理论的人口增长与人口政策。

About population adjustment, we are mainly dedicated to the processes of Eragrostis poaaeoides population size variation and adjusting mechanism.

关于种群调节，主要研究了小画眉草种群大小变化的过程及其调节机制。

In order to reveal how annuals adapt to stochastic fluctuation environment of dune stabilization plantation area at Shapotou, we took Eragrostis poaaeoides as case study on seed germination, population dynamics, population spatial distribution pattern and competition adjustment.

本文以小画眉草为例，从种子萌发、种群动态、种群空间分布格局和竞争调节等方面研究了一年生植物对随机环境的适应对策。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。