基于农户调查的长江流域双季稻生产碳、氮足迹分析—

基于农户调查的长江流域双季稻生产碳、氮足迹分析——以江西和湖南为例

陈中督, 徐春春, 纪龙, 方福平

Carbon and Nitrogen Footprints of Double Rice Production in Yangtze River Based on Farm Survey Data——A Case Study of Jiangxi and Hunan

Chen Zhongdu, Xu Chunchun, Ji Long, Fang Fuping

表2 长江流域双季稻生产间接碳排放和氮排放特征

Table 2 Characteristics of indirect carbon emissions and nitrogen (Nr) emissions of double rice production in Yangtze River

种类Item	碳排放Carbon emission (kgCO₂-eq/hm²)				氮排放Nr emission (gN-eq/hm²)
	早稻 Early rice	晚稻 Late rice	双季稻 Double rice		早稻 Early rice	晚稻 Late rice	双季稻 Double rice
	早稻 Early rice	晚稻 Late rice	双季稻 Double rice	柴油Diesel	早稻 Early rice	晚稻 Late rice	双季稻 Double rice	635.9±157.9	608.8±147.6	1244.7±279.6	607.8±151.0	582.0±141.1	1189.8±267.3
氮肥N	383.4±82.6	423.5±97.0	806.9±165.1		77.0±16.6	85.1±19.5	162.1±33.2
磷肥P₂O₅	39.5±19.4	53.9±29.4	93.5±44.4		21.7±10.6	29.6±31.8	51.3±35.6
钾肥K₂O	66.2±28.0	72.1±28.6	138.2±52.2		3.0±1.3	3.3±1.3	6.3±2.4
灌溉Irrigation	21.5±13.4	29.4±16.2	50.8±27.6		19.9±12.4	27.2±15.0	47.1±25.6
农膜Film	164.4±33.1	－	164.4±33.1		87.0±17.5	－	87.0±17.5
种子Rice seed	115.5±57.9	85.7±47.7	201.1±86.3		47.7±23.9	35.4±19.7	83.1±35.6
除草剂Herbicides	2.0±0.8	3.5±2.1	5.4±2.2		0.9±0.4	1.5±0.9	2.4±1.0
杀虫剂Insecticides	8.1±3.7	11.4±6.7	19.5±8.2		1.7±0.8	2.4±1.4	4.2±1.7
杀菌剂Fungicides	8.6±3.9	8.1±3.9	16.6±7.0		5.7±2.6	5.4±2.6	11.1±4.7
总体Total	1445.0±201.2	1296.2±207.8	2741.2±379.6		872.9±160.8	771.8±157.3	1644.3±291.7