[1]王紫薇,黄文哲,周阳阳,等. 泥河沟流域生态敏感性分析评价[J].西北林学院学报,2018,33(6):210-215.[doi:10.3969/j.issn.1001-7461.2018.06.33]
　WANG Zi-wei,HUANG Wen-zhe,ZHOU Yang-yang,et al. Integrated Ecological Sensitivity Analysis and Evaluation of Nihegou Catchment[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2018,33(6):210-215.[doi:10.3969/j.issn.1001-7461.2018.06.33]
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 泥河沟流域生态敏感性分析评价()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第33卷
期数:
2018年第6期
页码:
210-215
栏目:
出版日期:
2018-11-30

文章信息/Info

Title:
 Integrated Ecological Sensitivity Analysis and Evaluation of Nihegou Catchment
文章编号:
1001-7461(2018)06-0210-06
作者:
 王紫薇; 黄文哲; 周阳阳; 宋敏敏; 张青峰*
 （西北农林科技大学 资源环境学院，陕西 杨陵 712100）
Author(s):
 WANG Zi-wei; HUANG Wen-zhe; ZHOU Yang-yang; SONG Min-min; ZHANG Qing-feng*
 (College of Natural Resources and Environment,Northwest A&F University,Yangling,Shaanxi 712100,China)
关键词:
 ; 水土保持; 生态敏感性; 试验示范区; 层次分析法
Keywords:
 ; soil and water conservation;  ecological sensitivity;  experimental demonstration area;  AHP
分类号:
S157
DOI:
10.3969/j.issn.1001-7461.2018.06.33
文献标志码:
A
摘要:
 为摸清泥河沟流域生态系统在综合治理近30 a后的敏感性，基于GIS与多因子综合评价相结合的方法，对其生态敏感性进行分析评价。结果表明，泥河沟流域生态敏感性总体上表现出沟谷高、塬面低的空间异质性特征，生态系统极度敏感区主要分布于沟谷及沟谷两侧植被盖度低的区域；生态敏感性程度与坡度、起伏度和土壤侵蚀强度呈正相关关系，而与植被覆盖度和人类活动强度呈负相关关系；土壤侵蚀强度和土地利用类型是该流域生态系统最主要的两个影响因素。经过近20 a的自然发展，泥河沟流域生态敏感性得到较明显改善，整体上已处于较低水平，生态环境抗干扰能力增强，趋于更加稳定的状态。研究结果与方法对于重新认识和评价同类小流域生态敏感性及生态环境保护具有一定的参考和借鉴意义。
Abstract:
 In order to understand the ecological sensitivity of the Nihegou catchment after 30-year successive comprehensive management,the integrated ecological sensitivity was analyzed and evaluated based on GIS and multifactorial comprehensive evaluation.The results showed that,the ecological sensitivity of the Nihegou catchment had certain spatial heterogeneity,which was higher at the gully and lower in the plateau surface as a whole,and the extremely sensitive areas was mainly distributed in the both sides of the valley where had lower vegetation coverage.The ecological sensitivity had either a positive correlation with slope gradient,topographic relief and soil erosion intensity,or a negative correlation with vegetation coverage and the intensity of human activity.Amongest,soil erosion intensity and land use types were the main influencing factors.After nearly 20 years of natural development,the ecological sensitivity of the Nihegou watershed had been significantly improved,and it had been at a relatively low level as a whole.The anti-interference ability of the ecological environment had been enhanced and tended to be more stable.The results and the methods adopted in this paper had a certain referential significance for evaluating the ecological sensitivity,re-understanding ecological environment for similar small catchments.

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备注/Memo

备注/Memo:
 收稿日期：2018-02-05修回日期：2018-04-28
基金项目：国家科技支撑计划（2011BAD29B09-1）。
作者简介：王紫薇，女，本科，研究方向:GIS应用。E-mail：Wang97zoey@126.com
*通信作者：张青峰，男，副教授，研究方向:农业水土利用与管理。E-mail：zhqf@nwsuaf.edu.cn
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