洛阳市农田土壤碳汇规律研究
夏炎, 王润涛, 杜倩倩, 王喜宽, 吕红杰, 侯进凯, 李炳辉

Carbon sink in farmland soils in Luoyang City, China
XIA Yan, WANG Run-Tao, DU Qian-Qian, WANG Xi-Kuan, Lyu Hong-Jie, HOU Jin-Kai, LI Bing-Hui
图2 洛阳市不同时期土壤全碳、有机碳等值线分布
a—多目标调查全碳等值线;b—本次调查全碳等值线;c—多目标调查有机碳等值线;d—本次调查有机碳等值线
Fig.2 Isograms of total carbon and organic carbon in different periods of soil in Luoyang City
a—multi-objective survey full carbon contour; b—full carbon contour of this survey; c—multi-objective investigation of organic carbon contours; d—this survey of organic carbon contours