第一节种群的基本概念 一、种群同一物种在一定空间和一定时间的个体的集合体.是具有潜在互配能力的个体 二、区别种群和种(物种)的概念种是能够相互配育的自然种群的类群不同种之间存在生殖隔离现象.是一个分类阶元.一个物种可以包括许多种群;不同种群之间存在明显的地理隔离,长期隔离有可能发展为不同亚种甚至产生新的物种

Population, environment and development For example World population has more than doubled in only 43 years, from 2.5 billion in 1950 to 5.5 billion in 1993. Unless death rates rise sharply, it may reach 11 billion by 2045, and 14 billion by 2100 Resources, economic development, and resource scarcity All countries seek economic growth: increasing their capacity to provide goods and services for final

College of Environmental Science and Engineering, Nankai University, Tianjin300071) Abstract: This paper summed up the Course and the achievement of Chinese promoting Cleaner Production. It emphasized the creativity of mechanism of Chinas CP development in future, include to bring CP into its Social-Economical Development Program, to encourage local governments to promote CP, to encourage departments to support CP, etc Key Words: Cleaner Production, pollution control, sustainable development, creativity of mechanism

With a population of 12.5 billion and relatively low economic, scientific and technical Industries did not adhere to a standard of environmental performance and environmental agencies lacked sufficient funds and authority to enforce environmental regulations Cities are the engines of economic growth. Unfortunately, cities in China are facing serious

This socio-economic growth, together with the rapid expansion of Hong Kong's port and airport facilities and increase in cross boundary traffic, have placed tremendous demands on transport

NETWORK ECONOMIES Business network bamboo\network smuggling human trafficking chamber of commerce, untary- loca rotary, country club, etc Compulsory-belong to an organization. to survive or operate successfully e.g. accountant, bankers. Concept of networks ocially b inding ties hetween actors Global tribes- combination of ethnic

The term landscape commonly refers to the appearance of land, including its shape, texture, and colors It also reflects the way in which these various components combine to create specific patterns and pictures that are distinctive to particular localities These inscape is not a purely visual

The State of the HK Economy The Hong Kong economy staged a sharp rebound over the course of 1999, recovering robustly from the severe setback brought about by the earlier Asian financial turmoil. The recovery was strongly export-led. In consequence, there was a marked increase in the combined visible invisible trade surplus over the year

LECTURE18 Human Disruption and Ecological Restoration Human impacts The ways of human disruption of ecosystems: ecosysten -Over-hunting, overharvesting, overgrazing etc. -Deforestation, Pollution, Cultural reasons

Lecture 7 Tourism and Sustainable Development Tourism is the world's largest industry(WTTC et al., 1995). It employs approximately one in nine workers worldwide, comprising 6% of global gross national product (GNP) and, it has been seen as a panacea for solving many social problems and for driving economic growth