東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Measurement and control of greenhous...

Aguilar Gallardo, Orlando Alexis.

FindBook

Google Book

Amazon

博客來

Measurement and control of greenhouse gas emissions from beef cattle feedlots.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Measurement and control of greenhouse gas emissions from beef cattle feedlots./
作者:	Aguilar Gallardo, Orlando Alexis.
面頁冊數:	164 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
Contained By:	Dissertation Abstracts International74-10B(E).
標題:	Environmental engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3567218
ISBN:	9781303189630

Measurement and control of greenhouse gas emissions from beef cattle feedlots.
Aguilar Gallardo, Orlando Alexis.

Measurement and control of greenhouse gas emissions from beef cattle feedlots. - 164 p.

Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.

Thesis (Ph.D.)--Kansas State University, 2013.

Emission of greenhouse gases (GHGs), including nitrous oxide (N 2O), methane (CH4), and carbon dioxide (CO2), from open beef cattle feedlots is becoming an environmental concern; however, scientific information on emissions and abatement measures for feedlots is limited. This research was conducted to quantify GHG emissions from feedlots and evaluate abatement measures for mitigating emissions. Specific objectives were to: (1) measure N2O emissions from the pens in a commercial cattle feedlot; (2) evaluate the effectiveness of surface amendments in mitigating GHG emissions from feedlot manure; (3) evaluate the effects of water application on GHG emissions from feedlot manure; and (4) compare the photo-acoustic infrared multi-gas analyzer (PIMA) and gas chromatograph (GC) in measuring concentrations of N2O and CO2 emitted from feedlot manure.

ISBN: 9781303189630Subjects--Topical Terms:

548583
Environmental engineering.

Measurement and control of greenhouse gas emissions from beef cattle feedlots.
LDR:03354nmm a2200349 4500 001 2060726
005 20150924074405.5
008 170521s2013 ||||||||||||||||| ||eng d
020 $a 9781303189630
035 $a (MiAaPQ)AAI3567218
035 $a AAI3567218
040 $a MiAaPQ $c MiAaPQ
100 1 $a Aguilar Gallardo, Orlando Alexis. $3 3174907
245 1 0 $a Measurement and control of greenhouse gas emissions from beef cattle feedlots.
300 $a 164 p.
500 $a Source: Dissertation Abstracts International, Volume: 74-10(E), Section: B.
500 $a Adviser: Ronaldo Maghirang.
502 $a Thesis (Ph.D.)--Kansas State University, 2013.
520 $a Emission of greenhouse gases (GHGs), including nitrous oxide (N 2O), methane (CH4), and carbon dioxide (CO2), from open beef cattle feedlots is becoming an environmental concern; however, scientific information on emissions and abatement measures for feedlots is limited. This research was conducted to quantify GHG emissions from feedlots and evaluate abatement measures for mitigating emissions. Specific objectives were to: (1) measure N2O emissions from the pens in a commercial cattle feedlot; (2) evaluate the effectiveness of surface amendments in mitigating GHG emissions from feedlot manure; (3) evaluate the effects of water application on GHG emissions from feedlot manure; and (4) compare the photo-acoustic infrared multi-gas analyzer (PIMA) and gas chromatograph (GC) in measuring concentrations of N2O and CO2 emitted from feedlot manure.
520 $a Field measurements on a commercial beef cattle feedlot using static flux chambers combined with GC indicated that N2O emission fluxes varied significantly with pen surface condition. The moist/muddy surface had the largest median emission flux; the dry and compacted, dry and loose, and flooded surfaces had significantly lower median emission fluxes.
520 $a Pen surface amendments (i.e., organic residues, biochar, and activated carbon) were applied on feedlot manure samples in glass containers and evaluated for their effectiveness in mitigating GHG emissions. Emission fluxes were measured with the PIMA. For dry manure, all amendments showed significant reduction in N2O and CO2 emission fluxes compared with the control (i.e., no amendment). For moist manure, biochar significantly reduced GHG emissions at days 10 and 15 after application; the other amendments had limited effects on GHG emissions.
520 $a The effect of water application on GHG emissions from feedlot manure was evaluated. Manure samples (with and without water application) were placed in glass containers and analyzed for GHG emission using a PIMA. For the dry manure, GHG emissions were negligible. Application of water on the manure samples resulted in short-term peaks of GHG emissions a few minutes after water application.
520 $a Comparison of the GC and PIMA showed that they were significantly correlated but differed in measured concentrations of N2O and CO2. The PIMA showed generally lower N2O concentrations and higher CO 2 concentrations than the GC.
590 $a School code: 0100.
650 4 $a Environmental engineering. $3 548583
650 4 $a Environmental studies. $3 2122803
650 4 $a Soil sciences. $3 2122699
650 4 $a Animal sciences. $3 3174829
690 $a 0775
690 $a 0477
690 $a 0481
690 $a 0475
710 2 $a Kansas State University. $b Biological & Agricultural Engineering. $3 3174908
773 0 $t Dissertation Abstracts International $g 74-10B(E).
790 $a 0100
791 $a Ph.D.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3567218