潍坊市土地利用土地覆被变化环境效应.docVIP

潍坊市土地利用/土地覆被变化环境效应研究 摘 要 土地利用/土地覆被变化是全球变化研究的重要方向之一，其中土地利用/土地覆被变化的环境效应是研究的重点。本文结合近年来土地利用/土地覆被变化环境效应方面的一些研究进展，以潍坊市分析土地利用/土地覆被变化土地利用/土地覆被变化在基础之上，对土地利用/土地覆被变化所产生的环境效应进行，/土地覆被变化与生态环境变化并了相应的保护。Environmental Effects of Land Use and Land Cover Change In Weifang City Abstract The land use and the change of land cover is one of the important studies of globe’s change, among which the environmental response for the utilization of land / the change of land cover is the focus. This article analyzes the primary expressions and characteristics of conditions of the utilization of land / the change of land cover in Weifang City according to the development of study in the environmental response for the utilization of land / the change of land cover and has a further discussion about the driving power of the utilization of land / the change of land cover. Based on it, I will explore the air condition, water condition, heat condition between city and town, ecological condition of agricultural land caused by the utilization of land / the change of land cover in Weifang City and analyzes mainly the relationship between the utilization of land / the change of land cover and the change of ecological environment. Besides, I give my advises about reasonable use of land and environment protection from some aspects such as cultivated field protection, water and soil protection, ecological environment protection, adjustment and improvement of industry structure, and control of population and enhancement of population’s quality, etc. Key words: Weifang, Land use, Land cover change, Environmental effects 引言1.1土地利用/土地覆被变化的定义 土地利用与土地覆被是两个容易混淆的概念，它们之间既有联系，又有区别。在进行土地利用/土地覆被变化研究时，必须弄清楚两者的内在涵义及相互之间的关系。 [1]。 土地覆被是指地表的覆盖状态，但它不仅局限于地表的植被，而且还包括地表上的各种人工覆盖物和人工改造物，是自然植被与被自然营造体和人工建筑所覆盖的地表诸要素的综合反映。国际地圈与生物圈计划(IGBP)和全球环境变化人文计划(IHDP)将其定义为“地球陆地表层和近地面层的自然界状态，是自然界过程和人类共同作用的结果”。因此，土地覆被可以定义为地球表层的植被覆盖物和人工覆盖物的总称[2]。[3]。 土地利用和土地覆被两者之间又有区别。土地利用往往表现为功能性的特点，土地覆被则主要表现为形态性的特征。土地利用是土地覆被变化的外在驱动力，土地覆被又会反过来影响土地利用的方式，两者在地