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NTIS 바로가기韓國林學會誌 = Journal of Korean Forest Society, v.106 no.1, 2017년, pp.19 - 25
장한나 (고려대학교 대학원 환경생태공학과) , 한승현 (고려대학교 대학원 환경생태공학과) , 강호덕 (동국대학교 바이오환경과학과) , (몽골지리생태연구소 건조지연구센터) , 손요환 (고려대학교 대학원 환경생태공학과)
This study was conducted to investigate the effects of nitrogen fertilization on physiological characteristics and growth of Populus sibirica seedlings in a semi-arid area, Mongolia. 2-year-old P. sibirica seedlings were planted in May, 2015 with applications of urea 5 g (N1), 15 g (N2), 30 g (N3) a...
핵심어 | 질문 | 논문에서 추출한 답변 |
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토지 황폐화란 무엇인가? | 토지 황폐화는 토지의 생산성이 감소하는 것을 의미하며, 생태적 손실뿐 아니라 경제적 손실을 가져온다(Kassas, 1995). 이는 전 세계에서 발생하고 있으며, 특히 건조 및 반건조지에서 발생하는 토지 황폐화는 사막화 현상으로 정의된다(United Nations, 1994). | |
질소 시비의 역할은? | 사막화 지역을 복원하고 산림 면적을 증가시키기 위하여 몽골 내에서 조림에 대한 요구가 증가하고 있으나, 조림을 위한 기술 및 전문가가 부족한 실정이다(Tsogtbaatar, 2004). 질소 시비는 묘목 식재 시 토양 내 질소 농도를 증가시켜 묘목의 활착과 생장을 돕는다. 특히, 사막화 지역은 토양 내 양분이 부족하고(Garcia et al. | |
몽골 사막화 지역의 묘목 생육 증진에 적합한 질소 시비는 무엇인가? | 한편, 묘목의 엽록소 함량 및 엽면적, SLA에서는 질소 시비에 따른 차이가 나타나지 않았다. 본 연구 결과에 따르면 몽골 사막화 지역에서 묘목의 초기 생육 증진을 위하여 요소보다 황산암모늄을 시비하는 것이 더 적합한 것으로 보인다. 그러나 요소와 황산암모늄 시비가 토양 및 묘목에 미치는 영향이 다르므로 요소의 시비량을 그대로 황산암모늄에 적용할 수 없을 것으로 판단된다. |
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