祁连山国家公园生态脆弱性评价——以张掖段为例  

Ecological Vulnerability Evaluation of Qilian Mountain National Park in Zhangye City

作　　者：贾雪梅[1] 高烨 周涛 张国信[1] 唐家凯[1] 王运兴[1] 周自强[1] Jia Xuemei;Gao Ye;Zhou Tao;Zhang Guoxin;Tang Jiakai;Wang Yunxing;Zhou Ziqiang(Geological Hazards Prevention Institute,Gansu Academy of Sciences,Lanzhou,Gansu 730000;College of Civil Engineering and Mechanics,Lanzhou University,Lanzhou,Gansu 730000;Gansu Jianyan Geotechnical Engineering Co.,Ltd.,Lanzhou,Gansu 730000)

机构地区：[1]甘肃省科学院地质自然灾害防治研究所,甘肃兰州730000 [2]兰州大学土木工程与力学学院,甘肃兰州730000 [3]甘肃建研岩土工程有限公司,甘肃兰州730000

出　　处：《资源环境与工程》2021年第3期355-358,共4页Resources Environment & Engineering

基　　金：甘肃省科学院应用研究与开发项目——甘肃自然保护区矿山生态修复关键技术研究(2018JK-05)。

摘　　要：祁连山国家公园张掖段为生态脆弱敏感区。为探讨该区的生态脆弱性,采用主成分分析法,选取植被、高程、降雨量、气温、坡度、土壤湿度、土壤亮度和土地利用类型8个影响因子进行研究。结果表明,从西北至东南,研究区地势由高变低,归一化植被指数、气温和降雨量由低变高,生态脆弱性由高变低;影响生态脆弱性的主要因素为平均降雨量、坡度和土地利用类型。该项研究可为祁连山国家公园可持续发展和生态环境保护提供依据。Zhangye section of Qilian Mountain National Park is an ecologically fragile and sensitive area.The ecological fragility of Qilian Mountain National Park in Zhangye city is discussed.Principal component analysis(PCA)was used to study eight influencing factors including vegetation,elevation,rainfall,air temperature,slope,soil moisture,soil brightness and land use.The results show that from northwest to southeast,the terrain in the study area changes from high to low,normalized vegetation index,temperature and rainfall change from low to high,and ecological vulnerability changes from high to low.The main factors affecting ecological vulnerability are average rainfall,slope and land use type.This study can provide reference for the sustainable development and ecological environment protection of Qilian Mountain National Park.

关 键 词：生态脆弱性 祁连山国家公园 张掖 

分 类 号：X171.1[环境科学与工程—环境科学]