生态学杂志2025，Vol.44Issue(1)：113-121,9.DOI:10.13292/j.1000-4890.202501.005
河南省夏花生生产潜力时空变化特征及提升
Spatial-temporal variations and improvement of potential productivity of summer peanut in Henan Pro-vince
摘要
Abstract
To help rational use of climate resources and clarify the potential productivity,yield gap and main limit-ing factors of summer peanut in Henan Province,we analyzed the meteorological data of 112 stations in Henan Province from 1991 to 2020 and the actual summer peanut yield data of Zhengyang County Meteorological Bureau from 2011 to 2020.The photosynthetic potential productivity,light-temperature potential productivity and climatic potential productivity of summer peanut in Henan Province from 1991 to 2020 were calculated using the method of successive correction of climatic factors.We analyzed the variation characteristics of three kinds of yield gaps,including that between photosynthetic potential productivity and light-temperature potential productivity,between light-temperature potential productivity and climatic potential productivity,between climatic potential productivity and actual yield.Moreover,measures to reduce the yield gap of summer peanut were explored based on the DNDC model.The average photosynthetic potential productivity of summer peanut in Henan Province in recent 30 years was 15821.4 kg·hm-2,and showed a decreasing trend from northeast to southwest.The average light-temperature potential productivity was 13206.2 kg·hm-2,and showed a decreasing trend from east to west.The average clima-tic potential productivity was 10135.9 kg·hm-2,and showed a decreasing trend from east to west and from south to north.On the whole,water limitation was more significant than temperature for summer peanut yield in Henan Pro-vince.The yield gaps between photosynthetic potential productivity and light-temperature potential productivity of summer peanut,and between climatic potential productivity and actual yield were 2615.2 and 6465.5 kg·hm-2in Henan Province in recent 30 years,respectively,and showed significant decreasing trends.The difference between photosynthetic potential productivity and light-temperature potential productivity decreased from west to east,while the difference between light-temperature potential productivity and climatic potential productivity decreased from north to south.The DNDC model had a good simulation effect on the summer peanut yield in Zhengyang County.In 2013,for example,the summer peanut yield increased first and then decreased with irrigation amount at the pod stage and the sowing dates,and the maximum yields were achieved when the irrigation amount was 19.1 mm and the sowing date was delayed for 6 days.关键词
夏花生/生产潜力/产量差/DNDC模型Key words
summer peanut/potential productivity/yield gap/DNDC model引用本文复制引用
郭康军,李春艳,张溪荷,李彤霄,余卫东..河南省夏花生生产潜力时空变化特征及提升[J].生态学杂志,2025,44(1):113-121,9.基金项目
河南省气象局2020年气象科学技术研究项目(KQ202020)、中国气象局农业气象保障与应用技术重点实验室开放基金项目(AMF202107,AMF202202)和河南省重点研发与推广专项(科技攻关)项目(212102110275)资助. （KQ202020）
