摘要
生态足迹法作为一种生态承载力评估工具,是近些年来全球评价可持续发展程度的重要方法。均衡因子作为生态足迹法中重要的参数,其准确性可以直接影响到最终评估结果的真实性和可靠性。内蒙古是我国重要的生态安全屏障和草牧业基地,但由于均衡因子本身存在地域性特点,实现其均衡因子的测算是尤为重要的。本文基于2008-2018年1km的MODIS数据,采用净初级生产力,对内蒙古和其各盟市11年间的均衡因子进行计算,在时空尺度上分别探讨了均衡因子对温度、降水的响应。本研究测算了4种土地利用类型的均衡因子,分别是耕地:1.25、草地:0.97、林地:1.37和水域:0.71。其中,草地变异系数最高为0.74%,耕地变异系数最低为0.57%:4类土地利用的均衡因子中只有草地均衡因子在时空尺度上均与年降水量呈显著正相关,与年平均温度呈显著负相关。本研究可以在计算内蒙古自治区生态承载力方面提供帮助,并为实现内蒙古自治区可持续发展提供科学依据。
As a tool to evaluate ecological carrying capacity,ecological footprint method is an important method to evaluate the degree of sustainable development in recent years.As an important parameter of ecological footprint method,the accuracy of equivalence factor directly affects the authenticity and reliability of the final assessment results.Inner Mongolia is an important ecological security barrier and grass husbandry base in China.Due to the regional characteristics of the equivalence factors,it is urgent to measure the equivalence factors.Based on the MODIS data of 1 km in 2008-2018,current study used net primary productivity to calculate the equivalence factors of Inner Mongolia and its cities for 11 years,and discussed the response of equivalence factors to temperature and precipitation on the spatial-temporal scale.The equivalence factors of four land use types were calculated,which were cultivated land(1.25),grassland(0.97),forest land(1.37) and water area(0.71).Among them,the highest coefficient of variation of grassland was 0.74%,and the lowest coefficient of variation of cultivated land was 0.57%.Among the four types of land use equivalence factors,only grassland equivalence factors had significant positive correlation with precipitation and negative correlation with temperature on the spatial and temporal scales.This study provided a reference for the calculating the ecological carrying capacity the sustainable development of the Inner Mongolia Autonomous Region.
作者
张静宇
李奉时
张双双
韩鹏
闫勇智
张庆
ZHANG Jingyu;LI Fengshi;ZHANG Shuangshuang;HAN Peng;YAN Yongzhi;ZHANG Qing(Scoot of Ecology and Environment,Inner Mongolia University,Hohhot 010021,China)
出处
《内蒙古大学学报（自然科学版）》
CAS
北大核心
2021年第1期95-103,共9页
Journal of Inner Mongolia University：Natural Science Edition
基金
内蒙古自治区关键技术攻关计划项目(2020GG0007)
内蒙古自治区重大专项(zdzx2018020,2019ZD008)
内蒙古自治区自然科学基金重点项目(2018ZD03)资助。
关键词
净初级生产力
均衡因子
气候变化
内蒙古
生态承载力
生态足迹
net primary production
equivalence factor
climate change
Inner Mongolia
ecological carrying capacity
ecological footprint
