| 土地生态功能的特点与保护 |
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| 引用本文： | 刘学录,曹爱霞.土地生态功能的特点与保护[J].环境科学与管理,2008,33(10). |
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| 作者姓名： | 刘学录 曹爱霞 |
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| 作者单位： | 甘肃农业大学,资源与环境学院,甘肃,兰州,730070 |
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| 摘 要： | 土地的生态功能指在物质、能量迁移与转化过程中,土地所表现的能够满足和维持生物体以及人类生活需要的自然环境条件和效用。它包括生态环境的调节功能和生物支持功能两大类,具有整体性、关联性、空间地域性和时间动态性等特征。其中,生态环境的调节功能可分为保护土壤功能、防风固沙、涵养水源功能、调节微气候功能、净化环境功能等五类;生物支持功能主要指产生与维持生物多样性,为生物提供良好的栖息环境。土地的生态功能除了受地形地貌、土壤、气候、水、植物等自然条件的制约外,还受土地利用方式、土地利用结构和区域土地政策等社会经济因素的影响。
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| 关 键 词： | 土地 生态功能 调节功能 支持功能 |
Characteristics and Conversation of Land Ecological Functions |
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| Liu Xuelu,Cao Aixia.Characteristics and Conversation of Land Ecological Functions[J].Environmental Science and Management,2008,33(10). |
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| Authors: | Liu Xuelu Cao Aixia |
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| Institution: | Liu Xuelu; Cao Aixia(College of Resources and Environmental Sciences; Gansu Agricultural University; Lanzhou 730070; China); |
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| Abstract: | The purpose of this study is to analyze the ecological function of land,including the concept,the connotation,the characteristic and the influence factors.Methods of ecology and theory of system were applied.The results revealed:The ecological functions of land can be defined as following:the natural environmental conditions and effectiveness of land which meet and maintain the living needs of organism and human race during the transformation of matter and energy.There re two types of functions:adjustment o... |
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| Keywords: | land ecological function adjustment of ecological environment biological support |
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