首页 | 本学科首页   官方微博 | 高级检索  
     

黑土区坡耕地生物炭应用模式综合效益研究
引用本文:刘慧,苏航,温小艳,龙学毅,焦岩,范亚东. 黑土区坡耕地生物炭应用模式综合效益研究[J]. 农业机械学报, 2022, 53(7): 325-336
作者姓名:刘慧  苏航  温小艳  龙学毅  焦岩  范亚东
作者单位:东北农业大学经济管理学院,哈尔滨150030;东北农业大学农业农村部农业水资源高效利用重点实验室,哈尔滨150030;东北农业大学工程学院,哈尔滨150030;东北农业大学经济管理学院,哈尔滨150030
基金项目:国家自然科学基金项目(51479033)、黑龙江省博士后基金项目(LBH-Z17017)和农业农村部农业水资源高效利用重点实验室开放项目(2017009)
摘    要:为探究黑土区坡耕地不同生物炭应用模式(不同生物炭施用量和施用年限)的综合效益,以东北黑土区坡度为3°耕地径流小区为研究对象,于2015—2018年,设置不加生物炭的常规处理(C0)和生物炭施加量分别为25 t/hm2(C25)、50 t/hm2(C50)、75 t/hm2(C75)、100 t/hm2(C100)共5个处理,分析不同施炭量以及施炭年限的综合效益,结果表明:在生态效益方面,生物炭能够有效改善土壤结构、增强土壤肥力、提高土壤蓄水保土能力,在施炭量为50 t/hm2时,连续施用2年,土壤蓄水保土效果最佳;连续施用3年,土壤结构最为理想;施炭量为100 t/hm2时,连续施用4年,土壤肥力最佳。在经济效益方面,生物炭能够有效提高作物节水增产性能及其经济产值,施用1年、施炭量为75 t/hm2时,水分利用效率最大;连续施用2年、施炭量为25 t/hm2时,生物炭边际生产力最大,施炭量每增加1 t,产量增加1...

关 键 词:黑土区  生物炭  应用模式  模糊综合评价模型  效益评价
收稿时间:2021-07-23

Comprehensive Benefit of Biochar Application Modes on Slope Farmland in Black Soil Region
LIU Hui,SU Hang,WEN Xiaoyan,LONG Xueyi,JIAO Yan,FAN Yadong. Comprehensive Benefit of Biochar Application Modes on Slope Farmland in Black Soil Region[J]. Transactions of the Chinese Society for Agricultural Machinery, 2022, 53(7): 325-336
Authors:LIU Hui  SU Hang  WEN Xiaoyan  LONG Xueyi  JIAO Yan  FAN Yadong
Affiliation:Northeast Agricultural University
Abstract:In order to explore the comprehensive benefits of different biochar application modes (different biochar application amounts and application years) on sloping farmland in the black soil region, a 3° slope farmland runoff plot in the black soil region of Northeast China was taken as the research object, and experimental research was conducted from 2015 to 2018, the conventional treatment without biochar (C0) was set, and the applied amount of biochar were 25t/hm2(C25), 50t/hm2(C50), 75t/hm2(C75), 100t/hm2(C100) to analyze the comprehensive benefits of different amounts of biochar application and the duration of biochar application, the results showed that in terms of ecological benefits, biochar can effectively improve soil structure, enhance soil fertility, and improve soil water storage and soil conservation capacity. For two years of continuous application, the effect of soil water retention and soil conservation was the best when the amount of biochar applied was 50t/hm2;for three years of continuous application, the soil structure was optimal when the amount of carbon applied was 50t/hm2;for four years of continuous application soil fertility was the best when the amount of carbon was 100t/hm2. In terms of economic benefits, biochar can effectively improve crop water-saving, yield-generating performance and its economic output value. Applied for one year, when the amount of biochar was 75t/hm2, the water use efficiency reached the maximum. For two consecutive years, when the amount of biochar was 25t/hm2, the marginal productivity of biochar was the largest. For each additional ton of biochar applied, the output was increased by 11.20kg. For three consecutive years of application, when the amount of biochar applied was 50t/hm2, the soybean yield was the best;for four years of continuous application, when the amount of biochar applied was 50t/hm2, the return reached the maximum value. The improved fuzzy comprehensive evaluation model was used to calculate the ecological benefit, economic benefit and comprehensive benefit of different biochar application models. The results showed that the ecological benefit index reached the maximum value when the biochar application amount was 72.74t/hm2 for two consecutive years of application, the economic benefit index reached the maximum value when the biochar application amount was 36.32t/hm2 for three consecutive years of application. The best biochar application mode in the black soil area was continuous application for three years, and the biochar application amount was 62.30t/hm2.
Keywords:black soil region  biochar  application mode  fuzzy comprehensive evaluation model  benefit evaluation
本文献已被 万方数据 等数据库收录!
点击此处可从《农业机械学报》浏览原始摘要信息
点击此处可从《农业机械学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号