新疆环境保护2025，Vol.47Issue(1)：11-22,12.
基于CASA模型的阿勒泰地区近10年植被NPP时空分布特征
Spatiotemporal Distribution Characteristics of Vegetation NPP in the Past 10 Years Based on CASA Model in Altay Region
摘要
Abstract
Based on the CASA model,the changes in net primary productivity(NPP)of vegetation in Altay region from 2010 to 2020 were estimated,the solar energy utilization efficiency of typical vegetation was calculated using the SCE-UA optimization method.The temporal and spatial trends of NPP were studied using these methods such as Sen slope estimation,M-K test,Pearson correlation analysis,and Hurst index,etc.The results showed that the monthly average of vegetation NPP showed a unimodal pattern,fluctuating between 0～52.492 8 gC·m-2·a-1;the annual average of vegetation NPP showed a multi-peak pattern,fluctuating between 100～250 gC·m-2·a-1;in terms of spatial variation,the annual average of vegetation NPP showed a high trend in the northeast and a low trend in the southwest;the future trend of vegetation NPP showed gradually decreasing over time.It is necessary to strengthen the natural protection measures to ensure the stability of the ecosystem in Altay region and to coordinate the development of the regional ecological environment and human social economy.关键词
植被光能利用率/植被净初级生产力/CASA模型/阿勒泰地区Key words
vegetation solar energy utilization rate/net primary productivity of vegetation/CASA model/Altay region分类
生物学引用本文复制引用
崔瑶,王耀锋,程艳,付仁君,王悦,钱雪林..基于CASA模型的阿勒泰地区近10年植被NPP时空分布特征[J].新疆环境保护,2025,47(1):11-22,12.基金项目
第三次新疆综合科学考察项目(2021XJKK0700) （2021XJKK0700）
