| 秸秆和生物炭添加对关中地区玉米 - 小麦轮作 农田温室气体排放的影响 |
| 陈静1,2; 张建国1,2; 赵英1,2; 张阿凤1,2; 成功1,2; 冯浩2,3
|
| 2018
|
发表期刊 | 水土保持研究
|
卷号 | 25期号:5页码:170-178 |
摘要 | 为探讨玉米—小麦轮作农田秸秆和生物炭添加的固碳减排效应,以关中地区典型玉米—小麦轮作农田为研
究区域,采用静态暗箱—气相色谱法监测了秸秆和生物炭添加后土壤 CO 2 , CH 4
和 N
2 O 排放的动态变化。设常规施
肥( N
)、施基肥和添加4t / hm
2
秸秆还田( NS )、施基肥和添加4t / hm 2 生物炭(
NBC low )、施基肥和添加8t / hm
2
生物炭
( NBC high )和对照( CK )既不施肥也不施有机物料5个处理。结果表明:( 1 )与 N 处理相比, NS处理的农田土壤 N 2 O
排放总量没有显著变化,添加生物炭降低了土壤 N 2 O 年排放总量, NBC low 和 NBC high 处理分别降低了 13.21%和
23.75% 。( 2 )与 N处理相比, NS处理的农田土壤 CO 2 年排放总量增加了44.07%
,添加8t
/ hm
2
生物炭降低了 CO 2
年排放总量, NBC
high 处理降低了9.94% 。( 3 )与 N处理相比, NS处理的CH 4 年排放总量增加了42.32% 。 NBC low 和
NBC high 处理 CH 4 年排放总量分别增加了76.38%和73.23% 。( 4 )秸秆还田和生物炭添加均提高了作物产量,与 N
处理相比, NS , NBC
low 和 NBC high 处理的年产量分别提高了 13.73% , 20.37% 和 7.56% ; NBC high 处理比 NBC low 处理年
产量降低了 10.64%
;与
N 处理相比, NS , NBC low 和 NBC high 处理的小麦产量分别提高了 22.36% , 25.41% 和 14.06% ;
NS , NBC high 处理的玉米产量分别提高了5.40%和15.50% 。( 5 )添加生物炭降低了净增温潜势,与 N 处理相比,
NBC low 和 NBC high 处理分别降低了 33.59 , 48.33t / hm
2 ,单位产量的净增温潜势分别降低了 2.53 ,
4.21t / t 。综上所述,
添加 4t / hm
2
生物炭更有利于玉米—小麦轮作农田系统的固碳减排和产量的提高。 |
其他摘要 | In order to reveal the effects of straw and biochar amendment on greenhouse gases ( GHG ) emission
and crop yield , the farmland ecosystem of maize - wheat rotation in Guanzhong Plain of China was taken as the
study area.The annual GHG emissions
( CO
2 , CH 4 , and N 2 O ) from a wheat - maize rotation system with
straw and biochar amendment were monitored using the static opaque chamber and gas chromatography
technique.Five field treatments in the study including conventional fertilization
( N ), fertilization and 4
t / hm
2
straw ( NS ) amendment , fertilization and 4t / hm
2
biochar ( NBC low ) amendment , fertilization and 8
t / hm
2
biochar ( NBC high ) amendment.CK was without straw , biochar and fertilizer.The results showed
that :( 1 ) compared with N treatment , annual N 2 O emission decreased by 13.21%and 23.75%under NBC low
and NBC high treatment , respectively , and no significant difference was observed under straw application ;( 2 ) compared
with N treatment , annual CO 2 emission increased by 44.06% under NS treatment , but decreased by 9.94%under NBC high treatment ;( 3 ) compared with N treatment , annual CH 4 emission increased by 42.32% ,
76.38% and 73.23% , respectively , under NS , NBC low and NBC high treatment ;( 4 ) yield increased by
13.73% , 20.37% and 7.56% , respectively , under NS , NBC low and NBC high treatment as compared to N
treatment , and decreased by 10.64% under NBC high treatment as compared to NBC low treatment ;( 5 ) the
NGWP decreased by 33.59t
/ hm
2
and 48.33t / hm
2 ,
respectively , under NBC low and NBC high treatment as
compared to N treatment , and the NGHGI decreased by 2.53t / t and 4.21t / t , respectively , under NBC low
and NBC high treatment as compared to N treatment.In summary , it is concluded that biochar application of 4
t / hm
2
can be used as an effective management to carbon sequestration and increase crop yields under the
wheat - maize rotation system in Guanzhong Area. |
关键词 | 秸秆还田
生物炭添加
玉米—小麦轮作
温室气体
净增温潜势
关中地区
|
收录类别 | 中文核心期刊要目总览
|
语种 | 中文
|
文献类型 | 期刊论文
|
条目标识符 | sbir.nwafu.edu.cn/handle/361005/10304
|
专题 | 水保所知识产出(1956---)
|
作者单位 | 1.西北农林科技大学资源环境学院 2.农业部西北植物营养与农业环境重点实验室 3.中国科学院 水利部 水土保持研究所
|
推荐引用方式 GB/T 7714 |
陈静,张建国,赵英,等. 秸秆和生物炭添加对关中地区玉米 - 小麦轮作 农田温室气体排放的影响[J]. 水土保持研究,2018,25(5):170-178.
|
APA |
陈静,张建国,赵英,张阿凤,成功,&冯浩.(2018).秸秆和生物炭添加对关中地区玉米 - 小麦轮作 农田温室气体排放的影响.水土保持研究,25(5),170-178.
|
MLA |
陈静,et al."秸秆和生物炭添加对关中地区玉米 - 小麦轮作 农田温室气体排放的影响".水土保持研究 25.5(2018):170-178.
|
文件名:
|
秸秆和生物炭添加对关中地区玉米_小麦轮作农田温室气体排放的影响_陈静.pdf
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格式:
|
Adobe PDF
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