influence
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(2)流域生物多样性受到各种形式人类活动的影响
The biodiversity of the Yangtze River Basin has been influence threatened by human disturbance in a great diversity of ways
Yangtze River basin
一、具有国际意义的生 物多样性地区多，包括秦岭 太白山地区，川西高山峡谷 地区，两湖平原湿地区域等。 rge number of important areas with international interest in biodiversity, such as Qinling Mountains, West Sichuan Canyon and wetlands in DongtingPoyang Lake Plains.
长江流域生物多样性
Biodiversity in Yangtze River Basin
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(1)长江流域特征 Features of Yangtze River basin
全长6300千米,中国第一大河，世界第三大河 6300km long, the longest river in China and the third longest river in the world. 流经11个省市,流域面积1,800,000平方千米，占我国面积的19% Goes through 10 provinces or municipalities. Drainage area is 1,800,000 km2，covering one fifth of China. 流域人口占全国人口的1/3 Cover one third population of the whole China.
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(1)长江流域生物多样性特征 Features of biodiversity in
Yangtze River basin
物理条件 Physical condition 地质历史 Geological history
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(1)长江流域特征 Features of Yangtze River basin
地质构造极为复杂，跨扬 子准地台与华南褶皱系，秦岭 褶皱系，松潘甘孜褶皱系四大 地质构造单元。 Geological structure is very complex, consisting of four components: Yangtze quasi-platform, south China, Qingling Mountains, Songpanganzi fold.
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(2)流域生物多样性受到各种形式人类活动的影响
The biodiversity of the Yangtze River Basin has been influence threatened by human disturbance in a great diversity of ways
水利工程的影响 Water conservancy projects 上游干支流水电 资源丰富
The upper reaches of the Yangtze River and its tributaries have potential hydroelectric resources.
三峡大坝和诸 多上游水利工 程建设
流域内人类破坏生物多样性的两个典型方式： In the basin, there are two typical forms of the human disturbance: 水利工程建设 Water conservancy projects 围湖造田 Reclamation of land from lakes
长江流域生物多样性特征 与自然保护
The Features and the Conservation of Biodiversity in the Yangtze Basin
陈家宽 黄心一 Jiakuan Chen Xinyi Huang 复旦大学生物多样性研究所
Institute of Biodiversity Science, Fudan University
influence
三、三个层次（生 态系统、物种、遗传） 上上午多样性程度极高
3.Has a great biodiversity at genetic, species and ecosystem levels.
1.长江流域生物多样性
Biodiversity in Yangtze River basin
水利工程建设 construction of water conservancy projects 砍伐森林 deforestation
城市化 urbanization
垦荒种田 reclamation of wastland 围湖造田 reclamation of land from lakes
滥捕与养殖 fishery and aquaculture
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(2)流域生物多样性受到各种形式人类活动的影响
The biodiversity of the Yangtze River Basin has been influence threatened by human disturbance in a great diversity of ways
Degradation of natural habitats on which organisms depend
生态系统衰退Retrogression of ecosystems 濒危物种增多 An increase in the number of
endangered species 遗传多样性下降 An unacceptable loss of genetic diversity
Have profound effects on terrestrial plants and aquatic animals, especially migratory fishes.
我国发展对能源 的需求量大
Our country has a high demand of energy for development.
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(2)流域生物多样性受到各种形式人类活动的影响
The biodiversity of the Yangtze River Basin has been influence threatened by human disturbance in a great diversity of ways
影响 influence 反映 reflect
influence
人类活动 Human activities
生物多样性 Biodiversity
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(1)长江流域生物多样性特征 Features of biodiversity in
1.长江流域生物多样性ຫໍສະໝຸດ Biodiversity in Yangtze River basin
•(1)长江流域特征 Features of Yangtze River basin
流域地理位置经、纬度跨 度大，因此光照、气温、降雨 量、土壤类型等自然因素在流 域内差异极大。 Longitude and latitude of stretch range of the Yangtze River basin is very wide, natural conditions (light source, temperature, rainfall and soil type) are very different.
大规模基本建设(如铁路，公路和港口) construction of infrastructure（e.g., railway highways and ports）
1.长江流域生物多样性
Biodiversity in Yangtze River basin
•(2)流域生物多样性受到各种形式人类活动的影响
The biodiversity of the Yangtze River Basin has been influence threatened by human disturbance in a great diversity of ways
这些活动带来了经济的繁荣，但同时导致了大量环境问题的出现 First, these activities have brought about the economic prosperity, on the other hand, they cause a number of environmental problems 生物赖以生存的自然生境退化 景观破碎化 Fragmentation of landscape 植被破坏 Destruction of vegetation 土壤侵蚀 Soil erosion 江湖隔离 Separation of river from lakes 湖泊面积减少Sharp reduction in lake area 水污染 Water pollution