Long-term carbon uptake of agro-ecosystems in the Midwest

详细信息    查看全文

• 作者：C. Dold^a ; ^{Christian.Dold@ARS.USDA.GOV} ; H. Bü ; yü ; kcangaz^b ; W. Rondinelli^c ; J.H. Prueger^a ; T.J. Sauer^a ; J.L. Hatfield^a
• 关键词：Climate change ; Corn ; Gross primary production ; Net ecosystem exchange ; Prairie ; Soybean
• 刊名：Agricultural and Forest Meteorology
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：232
• 期：Complete
• 页码：128-140
• 全文大小：3170 K
• 卷排序：232

文摘

GPP and NEP was corn > prairie > soybean, excluding yield loss and burning. The corn-soybean agroecosystem is a carbon source including carbon loss by yield. High respiration in the off season and low CO2 assimilation affected soybean NEP. GPP, IWUE* and LUE are significantly related to maximum air temperature. Rain and VWC increased GPP of prairie, while it decreased GPP or IWUE* in cropland.