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| 层次分析法在民勤绿洲农田防护林生态效益评价中的应用 | |
| 引用本文： | 张彩霞,王训明,满多清,贾亮红.层次分析法在民勤绿洲农田防护林生态效益评价中的应用[J].中国沙漠,2010,30(3):602-607. |
| 作者姓名： | 张彩霞 王训明 满多清 贾亮红 |
| 作者单位： | 1. 中国科学院,寒区旱区环境与工程研究所,沙漠与沙漠化重点实验室,甘肃,兰州,730000 2. 中国科学院,寒区旱区环境与工程研究所,沙漠与沙漠化重点实验室,甘肃,兰州,730000;甘肃省荒漠化防治重点实验室/甘肃省治沙研究所,甘肃,武威,733000 3. 西北师范大学,地理与环境科学学院,甘肃,兰州,730070 |
| 基金项目： | "三北"防护林工程生态环境效应遥感监测与评估研究项目，国家自然科学基金 |
| 摘 要： | 基于防护林的定位观测数据,利用AHP法建立了防护林生态效益评价指数,并用该指数评价了民勤绿洲不同状态防护林的生态效益。结果表明,防风效益是决定民勤农田防护林的关键因素,林网内温湿度改变率、土壤有机质和土壤水分的改变率等因素对防护效益的影响也较大。防护林层次结构和疏透度是影响防护效益的主要参数。综合评价结果表明,疏透结构、林下乔灌草结构完整的林网防护效益相对较高,而通风结构或紧密结构、林下层次结构不完整的防护效益并不高。 |
| 关 键 词： | AHP 农田防护林 生态效益 民勤 |
| 收稿时间： | 2009-03-15; |
Application of Analytic Hierarchy Process(AHP) in Eecological Benefit Evaluation of Farmland Shelterbelts in Minqin Oasis |
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| ZHANG Cai-xia,WANG Xun-ming,MAN Duo-qing,JIA Liang-hong.Application of Analytic Hierarchy Process(AHP) in Eecological Benefit Evaluation of Farmland Shelterbelts in Minqin Oasis[J].Journal of Desert Research,2010,30(3):602-607. | |
| Authors: | ZHANG Cai-xia WANG Xun-ming MAN Duo-qing JIA Liang-hong |
| Institution: | ZHANG Cai-xia1,WANG Xun-ming1,MAN Duo-qing1,2,JIA Liang-hong3(1.Key Laboratory of Desert , Desertification,Cold , Arid Regions Environmental , Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China,2.Gansu Desert Control Research Institute,Wuwei 733000,Gansu,3.College of Geography , Environment Science,Northwest Normal University,{China}) |
| Abstract: | A set of ecological benefit evolution index was established by method of Analytic Hierarchy Process(AHP) based on observation data in the farmland shelterbelts of Minqin oasis.It was found that the ecological benefit of farmland shelterbelts was predominantly determined by wind-defending benefit.Besides,change of temperature and humidity in shelterbelts,and variation of soil organic matter and soil moisture were also the important influencing factors.The wind-defending benefit has close relation with hierar... |
| Keywords: | AHP |
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