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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (36): 205-210.doi: 10.11924/j.issn.1000-6850.casb15080007

所属专题： 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

河北省柏乡县土地整理项目的碳排放效应研究

郭义强1,2,陈朝锋3,韩 赜4,刘 琳5   

  1. (1国土资源部土地整治中心,北京 100035；2国土资源部土地整治重点实验室,北京 100035；3河北省柏乡县国土资源局,河北柏乡 055450；4重庆交通大学,重庆 400074；5石家庄工程技术学校,石家庄 050061）
  • 收稿日期:2015-08-02 修回日期:2015-11-30 接受日期:2015-09-24 出版日期:2015-12-30 发布日期:2015-12-30
  • 通讯作者: 郭义强
  • 基金资助:
    国家自然科学基金“黑龙港流域土地整理项目碳排放及其影响机理研究”(41401201)。

Carbon Emission Effect of Land Consolidation Project in Baixiang County of Hebei Province

Guo Yiqiang1,2, Cheng Chaofeng3, Han Ze4, Liu Lin5   

  1. (1Land Consolidation and Rehabilitation Center, Ministry of Land and Resources, Beijing 100035;2Key Laboratory of Land Consolidation and Rehabilitation, Ministry of Land and Resources, Beijing 100035; 3Bureau of Land and Resources, Baixiang Hebei 055450; 4Chongqing Jiaotong University, Chongqing 400074; 5Shijiazhuang Engineering and Technology School, Shijiazhuang 050061)
  • Received:2015-08-02 Revised:2015-11-30 Accepted:2015-09-24 Online:2015-12-30 Published:2015-12-30

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摘要： 为研究土地整理项目中的碳排放效应，明确土地整理的碳排放及其测算方法，分析土地整理碳减排潜力，以河北省柏乡县固城店镇土地整理项目区为研究区域，基于能源消费及土地利用变化，采用IPCC清单法，分析土地整理施工工程中包含土地平整工程、灌溉和排水工程、田间道路工程以及农田防护工程4个方面的碳排放及区域土地利用变化导致的碳排放。结果表明：柏乡县土地整理项目能源消费导致的碳排放总量为469.77 tC，土地平整工程的碳排放比例最大，高达78.44%，田间道路工程及灌溉和排水工程分别占15.69%，5.86%。从单位投资额碳排放量和单位投资比率的碳排放比例上看，田间道路工程和灌溉与排水工程投资的生态效应优于土地平整工程。柏乡县土地整理导致的土地利用变化使得区域土壤和植被碳储量增加了748.58 tC，其中未利用土地的碳储量变化最大。土地利用结构调整后增加的碳储量是整个施工过程中的碳排放量的1.59倍。柏乡县土地整理后项目区碳储量增加了278.81 tC，表现出碳汇效应。研究结果表明，为了降低土地整理的碳排放量，应当减少土地平整工程量，提倡使用清洁型燃料，并优先考虑碳密度较低的地类作为耕地来源，并在耕种过程中减少化肥和农药施用量，提高耕地产能。

关键词: 东南亚, 东南亚, 茄子, ISSR, 遗传多样性分析

Abstract: To analyze land use change in LCP (Land Consolidation Project), develop a method to assess the effects of LCP on carbon emission, and assess the carbon emission in LCP, Baixiang County in Hebei Province was taken as the study area to assess the effects of carbon emissions on LCP. Based on energy consumption and land use change, carbon emission inventory methods were used to analyze the carbon emission caused by energy consumption in land leveling, irrigation and drainage, road construction, farmland protection and land use changes. The results showed that the total carbon emission caused by energy consumption was 469.77 tC. Land leveling project was a major source of carbon emission, accounting for 78.44% of the total carbon emission of engineering construction, country road engineering and irrigation and drainage engineering accounted for 15.69% and 5.86% of the total carbon emission, respectively. From the view of carbon emission per unit investment quantity and carbon emission rate of investment proportion, ecological benefit of the country road engineering and irrigation and drainage engineering were better than that of land leveling project. Land use change caused by land consolidation in Baixiang County made regional vegetation and soil carbon storage increase 748.58 tC, and carbon storage change of unused land was the largest. The increment of carbon storage caused by land use change was 1.59 times more than carbon emission in the entire construction process. And after the implementation of land consolidation project, carbon storage increased 278.81 tC, showing the effect of carbon sink. Based on these results, the suggestions including decreasing the quantity of land leveling project, reducing the consumption of fossil fuels, advocating using clean fuel and choosing new cultivated land which had lower carbon densities were put forward to decrease the carbon emission. In addition, more organic fertilizer, fewer pesticides and chemical fertilizers should be used to raise soil fertility.