干旱区生态环境知识资源中心(Arid): 甘南草地类型的生态经济价值与功能及其分类经营

Arid

	甘南草地类型的生态经济价值与功能及其分类经营
其他题名	Ecological Economic Value and Functions and Classification Management for Grassland in Gannan Prefecture, Gansu Province
	郭正刚; 高新华; 刘兴元; 梁天刚
来源期刊	山地学报
ISSN	1008-2786
出版年	2004
卷号	22 期号:6 页码:655-660
中文摘要	草地资源是甘南牧区农牧民生存的物质基础,也是维护区域生态安全的重要保障.合理的经营模式和策略是草地资源可持续经营的关键.通过分析甘南地区不同类型草地的生产和生态服务价值以及其在区域经济发展中的主要功能,将甘南草地资源划分为生态功能区,经济功能区和混合功能区三种功能区.生态功能区主要草地类型是高寒荒漠,严重退化的高寒草甸和高寒草原,面积46.85104 hm2(18%),经营策略是封育和禁牧.经济功能区主要草地类型是低地草甸和山地草甸,面积67.66104 hm2(25%),经营策略是专门集约化生产区,运用施肥、灌溉等措施经营草地资源,提高单位面积产值.混合功能区主要草地类型是温性草原和轻度退化的高寒草甸,面积148.34*104 hm2(57%),经营策略是划区轮牧,承包到户.
英文摘要	Gannan prefecture, located on the edge of northeast Qinghai-Tibetan Plateau with cold climate, is of the upper reaches of Yellow and Yangtze River. Management of grassland plays an important role in husbandry, water conservation, biodiversity and ecological safety of the headwater regions. Due to the mismanagement in the past decades, grassland has seriously degraded and has further led to many eco-environmental issues. Grassland is multi-functional and every grassland type usually has many functions. Some functions con-tnbute to ecological benefits, and others to economic benefits. For each kind of grassland, the importance of each function is different. For example, the main functions of alpine deserts and alpine meadow are ecological, including nature reserves, a genetic pool, and soil conservation, but the economic are insignificant. On the basis of grassland functions, ecological services and productive value of each grassland type are dif-ierent in Gannan prefecture. To aid management of grassland, Gannan grassland is classified into three management sectors. One is eco-og.cal, mamly devoting to ecological and social values; the second is economic, focusing on economic benefits; ZT." m’Xed Wkh eC0l0gical ^ economic rffccta- Ecological grassland makes up 468.5 thousand ha,or 18% of Gannan regions. Economic grassland is 676.6 thousand ha, taking up 25 %. Mixed grassland with 57% 4^.4 thousand ha. Management strategies are proposed for three kinds of grassland respectively. Absence of graz-ng and cropp.ng ispredominant in the management of ecological grassland, to restore degenerated areas and protect grassland with high ecological value, and further to improve the environment. Agricultural measures, like fertilizer and irrigation are used to enhance the productivity of intensively economic grassland. Rotational grazing is used on mixed grassland
中文关键词	甘南牧区 ; 草地类型 ; 生态服务价值 ; 草地功能 ; 分类经
英文关键词	gannan grazing region grassland type econogical services value grassland function classfication
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1862752
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205308
作者单位	兰州大学草地农业科技学院, 农业部草地农业生态系统学重点开放实验室, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	郭正刚,高新华,刘兴元,等. 甘南草地类型的生态经济价值与功能及其分类经营[J]. 兰州大学,2004,22(6):655-660.
APA	郭正刚,高新华,刘兴元,&梁天刚.(2004).甘南草地类型的生态经济价值与功能及其分类经营.山地学报,22(6),655-660.
MLA	郭正刚,et al."甘南草地类型的生态经济价值与功能及其分类经营".山地学报 22.6(2004):655-660.