摘要
基于通辽平原区2000年—2010年植被净初级生产力(NPP)遥感数据、土地利用类型空间分布及气象数据,采用相关分析法等,对研究区NPP的变化特征及其影响因素响应关系进行研究,识别出不同时期NPP对气候变化与人类活动的响应关系。结果表明:研究区植被NPP年平均值呈上升趋势,空间波动范围为0~619.1 gC/m^(2),呈现出中部高南北低趋势;气温(T)比降水(P)对NPP影响更加复杂,水热同期影响整体减弱;研究期间,人类因素是影响研究区NPP的主要驱动因素,其中耕地面积变化及转换是主要因子;自然因素对NPP的影响作用有所增加,其水热同期是主要因素。
Based on the remote sensing data of the vegetation net primary productivity(NPP),the spatial distribution of the land use types,and the meteorological data in Tongliao plain from 2000 to 2010,the change characteristics of NPP and the response relationship of its influencing factors were studied by using the correlation analysis method in this paper.The response relationship of NPP to the climate change and human activities in different periods was identified.The results showed that,the NPP annual average value of the vegetation in the study area showed an upward trend,and the spatial fluctuation range was from 0 to 619.1 gC/m^(2),showing a trend of high in the middle and low in the north and south.The influence of the temperature(T)was more complex than that of the precipitation(P),and the influence of water and heat was weakened in the same period.During the study period,human factors were the main driving factors affecting the NPP in the study area,and the change and conversion of the cultivated land area were the main factors.The influence of the natural factors on NPP increased,and the water and heat were the main factors during the same period.
作者
朱永华
席小康
马鹏飞
云腾
张洁
ZHU Yonghua;XI Xiaokang;MA Pengfei;YUN Teng;ZHANG Jie(College of Civil Engineering and Architecture,Yan'an University,Yan'an 116000,China;Shanxi Hydrological and Water Resources Survey Center,Xi'an 710000,China;TongLiao Water Conservancy Technology Extension Station,Tongliao 02S000,China;Inner Mongolia Geological Environment Monitoring Institute,Hohhot 010018,China)
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2022年第1期21-26,共6页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
延安博士基金项目(YDBK2019-35)
延安大学大学生创新创业训练计划项目(D2019057)
陕西省教育厅一般专项项目(21JK0982)。
