본문

서브메뉴

Perennial Forages as a Key to Environmental Sustainability and Soil Health
Perennial Forages as a Key to Environmental Sustainability and Soil Health
Perennial Forages as a Key to Environmental Sustainability and Soil Health

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202104814
ISBN  
9798288866043
DDC  
630
저자명  
Orcasberro, M. Soledad.
서명/저자  
Perennial Forages as a Key to Environmental Sustainability and Soil Health
발행사항  
[Sl] : The University of Wisconsin - Madison, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
202 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-01, Section: A.
주기사항  
Advisor: Picasso, Valentin D.
학위논문주기  
Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
초록/해제  
요약This dissertation presents two on-farm research studies aimed at advancing sustainable agriculture by first exploring the relationship between management practices and higher forage harvested in alfalfa and then examining how these high-yielding practices relate to soil health. In addition, a third on-farm study investigates the effects of diversity, perenniality, and circularity on soil health at the farming systems level. Each chapter explores a distinct aspect of how farm-level decisions and system design influence productivity and soil health, both of which are critical pillars of agricultural sustainability. The final chapter extends the scope beyond the United States, highlighting a case study in Uruguay that demonstrates the impact of ecological intensification in the Campos grasslands. This example illustrates the value of improved grazing management, first through research and then at the farm level, showing how ecological approaches can simultaneously increase productivity and reduce environmental externalities. These findings are especially relevant in the current context of widespread environmental degradation, biodiversity loss, and the dominance of high-input agricultural systems worldwide.Management practices associated with maximizing alfalfa (Medicago sativa L.) forage harvested on farms in the U.S. Midwest were analyzed through a survey of 24 farmers managing 38 fields. The study identifies key practices, such as cutting frequency, nutrient management, and forage use, that differentiate technological groups in terms of forage harvested. Farms applying sulfur and harvesting more than three cuts for haylage or silage achieved the highest forage yields. These findings highlight the importance of integrated strategies to close the persistent yield gap between research and farm-level performance.The relationship between alfalfa forage harvested and soil health indicators was further examined using on-farm data from 32 fields across the Midwest. Higher forage yields were associated with greater soil organic matter (SOM), pH, and sulfur content, along with improved soil biological indicators such as permanganate oxidizable carbon (POX-C). Among three technological groups identified, farms in the high-input silage and haylage group achieved the highest yields. These farms were characterized by more frequent soil testing and higher levels of key nutrients (N, K, and pH), emphasizing the role of efficient nutrient management and improved soil health in reducing the difference between agronomic potential and the current average of farmers.The connections between diversity, perenniality, circularity, and soil health were analyzed using a dataset of 52 paired farms across three U.S. regions. Farms categorized as Diverse Perennial Circular Systems (DPCS) integrated livestock, grazing, and perennial crops more frequently than their Local Dominant System (LDS) counterparts. Perenniality emerged as the strongest driver of soil health, particularly associated with microbial activity and carbon cycling. Circularity showed an association with perenniality and diversity. These interconnections remain fundamental factors that deserve further investigation in future research. The results highlight the importance of incorporating perennial species into agricultural systems traditionally dominated by annual crops to improve soil function and support sustainability.A vision for climate resilience and improved ecosystem services in the Campos grasslands in South America, which are especially relevant in these times of climate uncertainty, is finally presented. Dominated by beef cattle production systems, this chapter focuses on ecological intensification through improved grazing management, specifically by regulating forage allowance and stocking rates. Such practices can increase forage and livestock production, enhance ecosystem services, and improve resilience to climatic extremes like droughts. Based on a synthesis of published literature from the Campos grasslands, the chapter contrasts traditional grazing management with improved approaches characterized by higher biomass and reduced grazing intensity at both paddock and farm levels. These findings highlight the critical role of perennial forages and optimized grazing management in strengthening the resilience and sustainability of agricultural systems.There is an urgent need to transition toward more sustainable agricultural systems. Perennial forages and agroecological management play a central role in enhancing productivity, resilience, and environmental performance across different systems, such as alfalfa-based farms in the U.S. Midwest and DPCS or LDS systems across the U.S., in contrast to systems like the ones in the Campos grasslands in South America. In both contexts, perenniality emerges as a key driver of improved soil health and ecosystem function. However, each study also presents limitations, including observational restrictions, small sample sizes, single-time assessments, and limited implementation in real farm settings. Future research should build on these findings through longitudinal studies, field experiments, and broader socio-economic analyses to evaluate the adaptability and impact of sustainable practices such as integrated forage management and adaptive grazing across diverse agricultural landscapes.
일반주제명  
Agronomy
일반주제명  
Soil sciences
일반주제명  
Animal sciences
일반주제명  
Ecology
일반주제명  
Agriculture
일반주제명  
Sustainability
키워드  
Ecological intensification
키워드  
On-farm research
키워드  
Perennial forages
키워드  
Soil health
키워드  
Perenniality
기타저자  
The University of Wisconsin - Madison Agronomy
기본자료저록  
Dissertations Abstracts International. 87-01A.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008260126s2025        us                              c    eng  d
■001000017358949
■00520260202104814
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798288866043
■035    ▼a(MiAaPQ)AAI32167813
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a630
■1001  ▼aOrcasberro,  M.  Soledad.
■24510▼aPerennial  Forages  as  a  Key  to  Environmental  Sustainability  and  Soil  Health
■260    ▼a[Sl]▼bThe  University  of  Wisconsin  -  Madison▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a202  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-01,  Section:  A.
■500    ▼aAdvisor:  Picasso,  Valentin  D.
■5021  ▼aThesis  (Ph.D.)--The  University  of  Wisconsin  -  Madison,  2025.
■520    ▼aThis  dissertation  presents  two  on-farm  research  studies  aimed  at  advancing  sustainable  agriculture  by  first  exploring  the  relationship  between  management  practices  and  higher  forage  harvested  in  alfalfa  and  then  examining  how  these  high-yielding  practices  relate  to  soil  health.  In  addition,  a  third  on-farm  study  investigates  the  effects  of  diversity,  perenniality,  and  circularity  on  soil  health  at  the  farming  systems  level.  Each  chapter  explores  a  distinct  aspect  of  how  farm-level  decisions  and  system  design  influence  productivity  and  soil  health,  both  of  which  are  critical  pillars  of  agricultural  sustainability.  The  final  chapter  extends  the  scope  beyond  the  United  States,  highlighting  a  case  study  in  Uruguay  that  demonstrates  the  impact  of  ecological  intensification  in  the  Campos  grasslands.  This  example  illustrates  the  value  of  improved  grazing  management,  first  through  research  and  then  at  the  farm  level,  showing  how  ecological  approaches  can  simultaneously  increase  productivity  and  reduce  environmental  externalities.  These  findings  are  especially  relevant  in  the  current  context  of  widespread  environmental  degradation,  biodiversity  loss,  and  the  dominance  of  high-input  agricultural  systems  worldwide.Management  practices  associated  with  maximizing  alfalfa  (Medicago  sativa  L.)  forage  harvested  on  farms  in  the  U.S.  Midwest  were  analyzed  through  a  survey  of  24  farmers  managing  38  fields.  The  study  identifies  key  practices,  such  as  cutting  frequency,  nutrient  management,  and  forage  use,  that  differentiate  technological  groups  in  terms  of  forage  harvested.  Farms  applying  sulfur  and  harvesting  more  than  three  cuts  for  haylage  or  silage  achieved  the  highest  forage  yields.  These  findings  highlight  the  importance  of  integrated  strategies  to  close  the  persistent  yield  gap  between  research  and  farm-level  performance.The  relationship  between  alfalfa  forage  harvested  and  soil  health  indicators  was  further  examined  using  on-farm  data  from  32  fields  across  the  Midwest.  Higher  forage  yields  were associated  with  greater  soil  organic  matter  (SOM),  pH,  and  sulfur  content,  along  with  improved  soil  biological  indicators  such  as  permanganate  oxidizable  carbon  (POX-C).  Among  three  technological  groups  identified,  farms  in  the  high-input  silage  and  haylage  group  achieved  the  highest  yields.  These  farms  were  characterized  by  more  frequent  soil  testing  and  higher  levels  of  key  nutrients  (N,  K,  and  pH),  emphasizing  the  role  of  efficient  nutrient  management  and  improved  soil  health  in  reducing  the  difference  between  agronomic  potential  and  the  current  average  of  farmers.The  connections  between  diversity,  perenniality,  circularity,  and  soil  health  were  analyzed  using  a  dataset  of  52  paired  farms  across  three  U.S.  regions.  Farms  categorized  as  Diverse  Perennial  Circular  Systems  (DPCS)  integrated  livestock,  grazing,  and  perennial  crops  more  frequently  than  their  Local  Dominant  System  (LDS)  counterparts.  Perenniality  emerged  as  the  strongest  driver  of  soil  health,  particularly  associated  with  microbial  activity  and  carbon  cycling.  Circularity  showed  an  association  with  perenniality  and  diversity.  These  interconnections  remain  fundamental  factors  that  deserve  further  investigation  in  future  research.  The  results  highlight  the  importance  of  incorporating  perennial  species  into  agricultural  systems  traditionally  dominated  by  annual  crops  to  improve  soil  function  and  support  sustainability.A  vision  for  climate  resilience  and  improved  ecosystem  services  in  the  Campos  grasslands  in  South  America,  which  are  especially  relevant  in  these  times  of  climate  uncertainty,  is  finally  presented.  Dominated  by  beef  cattle  production  systems,  this  chapter  focuses  on  ecological  intensification  through  improved  grazing  management,  specifically  by  regulating  forage  allowance  and  stocking  rates.  Such  practices  can  increase  forage  and  livestock  production,  enhance  ecosystem  services,  and  improve  resilience  to  climatic  extremes  like  droughts.  Based  on  a  synthesis  of  published  literature  from  the  Campos  grasslands,  the  chapter  contrasts  traditional grazing  management  with  improved  approaches  characterized  by  higher  biomass  and  reduced  grazing  intensity  at  both  paddock  and  farm  levels.  These  findings  highlight  the  critical  role  of  perennial  forages  and  optimized  grazing  management  in  strengthening  the  resilience  and  sustainability  of  agricultural  systems.There  is  an  urgent  need  to  transition  toward  more  sustainable  agricultural  systems.  Perennial  forages  and  agroecological  management  play  a  central  role  in  enhancing  productivity,  resilience,  and  environmental  performance  across  different  systems,  such  as  alfalfa-based  farms  in  the  U.S.  Midwest  and  DPCS  or  LDS  systems  across  the  U.S.,  in  contrast  to  systems  like  the  ones  in  the  Campos  grasslands  in  South  America.  In  both  contexts,  perenniality  emerges  as  a  key  driver  of  improved  soil  health  and  ecosystem  function.  However,  each  study  also  presents  limitations,  including  observational  restrictions,  small  sample  sizes,  single-time  assessments,  and  limited  implementation  in  real  farm  settings.  Future  research  should  build  on  these  findings  through  longitudinal  studies,  field  experiments,  and  broader  socio-economic  analyses  to  evaluate  the  adaptability  and  impact  of  sustainable  practices  such  as  integrated  forage  management  and  adaptive  grazing  across  diverse  agricultural  landscapes.
■590    ▼aSchool  code:  0262.
■650  4▼aAgronomy
■650  4▼aSoil  sciences
■650  4▼aAnimal  sciences
■650  4▼aEcology
■650  4▼aAgriculture
■650  4▼aSustainability
■653    ▼aEcological  intensification
■653    ▼aOn-farm  research
■653    ▼aPerennial  forages
■653    ▼aSoil  health
■653    ▼aPerenniality
■690    ▼a0285
■690    ▼a0481
■690    ▼a0475
■690    ▼a0640
■690    ▼a0329
■690    ▼a0473
■71020▼aThe  University  of  Wisconsin  -  Madison▼bAgronomy.
■7730  ▼tDissertations  Abstracts  International▼g87-01A.
■790    ▼a0262
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358949▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF14547 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.