1、地面风场 年平均风玫瑰图(以佛山为例) 风向频率及其风速V

山东农业大学：《微生物学 MICROBIOLOGY》课程教学资源（PPT课件讲稿）第八章 微生物的生态 第二节 微生物与环境间的关系

Visual Basic的特点 可视化: Visual的英文含义既是可视化,在可视化环境下创 作前端界面也就如同摆放积木。 面向对象:面向对象编程是建立在类的基础上的,其通过类 的封装而使源程序更加便于维护。 部件编程:部件编程则使软件创建如同组装一辆汽车。 事件驱动:事件驱动则是指程序的执行路线是基于用户的操 作步骤来确定的

微生物对土壤环境中重金属的影响 微生物对重金属的影响主要体现在四个方面 生物吸附和富集作用 溶解和沉淀作用 氧化还原作用 菌根真菌与土壤重金属的生物有效性的关系

Chapter 1.a Fable for Tomorrow There was once a town in the heart of america where all life seemed to live in harmony with its surroundings The town lay in the midst of a checkerboard of prosperous farms, with fields of grains and hillsides of orchards where in spring white clouds of bloom drifted

Acute(急性) and chronic(慢性) toxicity Acute toxicity refers to a rapid and serious response to a high but short-lived dose Acute poisons interfere with essential physiological processes, leading to a variety symptoms of distress, even death Chronic toxicity refers to a time-lagged response to a relatively low but prolonged exposure

Toxic metals Some metals are essential for the normal development and well-being of humans and other creatures They include Na, K, ca, Mg, cu, Cr, and Zn Other metals are toxic even when present in an organism at very low concentrations Examples: Antimony, Arsenic, Barium

Objectives of Water Treatment The objectives for water treatment derive from two concerns Human health and welfare The health of aquatic ecosystems

What is the pH of natural rain water? pH of natural rain water is determined by acidic and basic species that are

Ozone in the atmosphere STRATOSPHERE TROPOSPHERE In this region, ozone protects In this region, ozone can us from the sun's harmful damage lung tissue and uitraviolet radiation