인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
Dedicated energy crops, such as perennial grasses could have significant impacts on soil C sequestration and structure development. Over many years large areas of grassland have been converted to crop production. Consequently, soil organic matter decreased with the use of agricultural management practices, particularly tillage. Losses of soil organic matter are related with a decline in soil structure. Reestablishment of perennial grasses for biomass production on marginal agricultural lands has many benefits including increasing soil C sequestration and minimizing decomposition of soil organic matter through the use of minimum tillage. The objective of this research was to estimate potential C sequestration and soil structure development with the reestablishment of warm- and cool-season grasses on previously cropped land. Experimental treatments included three grass species and fallow. Switchgrass (Panicum virgatum), big bluestem (Andropogon gerardii), and intermediate wheatgrass (Thinopyrum intermedium) were established in 2000 at the USDA-ARS Research Farm near Brookings, SD, USA. Soil samples were collected to evaluate root biomass, soil organic carbon (SOC), particulate organic carbon (POC), and aggregate size distribution in 2005. There was no differen ... 전체 초록 보기
본문·목차
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