Responses of Net Primary Productivity to Climatic Factors in Youyang County

• 作者: Cheng Yan Feng Yuxuan Gong Kebing Mou Xinli Xiong Qirun Xiong Xin
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: Youyang COUNTY Net primary PRODUCTIVITY (NPP) CLIMATIC factors ANNUAL VARIATIONS China
• 年，卷（期）: qxyhjyjywb_2017,（1）
• 页码范围: 5-6
• 页数: 2页
• 分类号: P

摘要

Based on monthly data of precipitation, temperature, sunshine duration, wind speed, relative humidity and other climatic factors in Youyang County during 1956 -2013, net primaiy productivity ( NPP) in the county was calculated by using a climate productivity model，and effectsof changes in climatic factors on NPP in the county were studied. The results show that annual average NPP in Youyang County during 1956 - 2013 was 11.137 t /( hm2 ■ a ) , but there were no significant changes over the past 58 years. There was a significantly positive correlation between NPP and annual precipitation or annual mean relative humidity. Under the background of global warming, NPP in Youyang County will face greater pressure , thereby putting pressure on local ecological environment. The research can provide scientific reference for the construction of Youyang County and ecological protection zones in the southeast of Chongqing.