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중국 건조지역에서 시비와 보수제 처리에 의한 신강포플러의 생장 및 묘목의 양분 ?량 변화
경지현,손요환,노남진,이명종,이천용,윤호중 한국산림과학회 2006 한국산림과학회지 Vol.95 No.6
To investigate soil management practices for increasing tree growth in arid regions of China, Xinjiangpoplar (Populus alba var. pyramidalisfertilizers (nitrogen and phosphorus) and absorbents (artificial; K-SAM and natural: Yuho (Artemisia ordosica))at Dengkou in Iner Mongolia. Sedling height, diameter at breast height (DBH), biomass, and nitrogen (N) andphosphorus (P) concentrations were measured 1.5 years after the treatments. Soil texture was sandy loam fornursery and clay loam for windbreak, soil pH was 8.78 for nursery and 8.51 for windbreak, and total soil Nconcentration was 0.06% for nursey and 0.08% for windbreak. In general, sedling height and DBH increasedin the N fertilizer treatment compared to control or other treatments both in nursery and windbreak. Alsobelowground biomass increased after the N + P treatment. Foliage N and P concentrations following N and/orP treatments were same in the nursey, however, they significantly increased in the windbreak indicating Ndeficiency. It apeared that N was a limiting factor for early growth of Xinjiang poplar sedlings and artificialand natural absorbents (K-SAM and Yuho) would be useful to increase seedling growth in the arid region.
윤태경,손요환,Yingming Zhao,노남진,강호덕 한국산림과학회 2014 Forest Science And Technology Vol.10 No.1
Intensive and continuous management has rarely been applied in forestation designed to combat desertification, except for afew instances of fertilization and irrigation in the early stage in northern China. We hypothesized that early and discontinuousfertilization and absorbent treatments would continuously increase tree growth and improve soil properties in an aridregion. In 2003 and 2004, treatments of nitrogen fertilization and absorbents were applied to Populus alba var. pyramidalistrees in an experimental windbreak site in the Hetao Plain of Inner Mongolia, China. Nevertheless, the current study resultshave demonstrated that early and discontinuous nitrogen fertilization and absorbent treatments continuously increased treegrowth (2003–2009) without any significant improvement in soil properties in 2010. The study results suggest that earlyand discontinuous fertilization and absorbent practices may be sufficiently effective in forestation aimed at combatingdesertification in arid lands where continuous maintenance cannot be expected.