CAJ | 학술논문

2004年在甘肃高台县荒漠草原区按照不同密度(2 m×2 m、2 m×3 m、3 m×3 m、3 m×4 m)移栽花棒Hedysarum scoparium 200 hm2,设定样方连续4年观测成活率、分枝数、高度、冠幅、生物量等的变化情况.结果表明,3 m×3 m、3 m×4 m为花棒的最佳移栽密度,在此密度下,花棒生长旺盛,枝条茂密,根系发育良好,丛间物种数增加,盖度提高,固沙效果明显.大于此密度,花棒植株低矮,生长缓慢,丛间原有物种消失,固沙效果较差.
2004년재감숙고태현황막초원구안조불동밀도(2 m×2 m、2 m×3 m、3 m×3 m、3 m×4 m)이재화봉Hedysarum scoparium 200 hm2,설정양방련속4년관측성활솔、분지수、고도、관폭、생물량등적변화정황.결과표명,3 m×3 m、3 m×4 m위화봉적최가이재밀도,재차밀도하,화봉생장왕성,지조무밀,근계발육량호,총간물충수증가,개도제고,고사효과명현.대우차밀도,화봉식주저왜,생장완만,총간원유물충소실,고사효과교차.
200 hectares of transplanted Hedysarum scoparium were established with various density (2 m×2 m, 2 m×3 m, 3 m×3 m and 3 m×4 m) in the desert pasture of Gaotai County in Gansu during the year of 2004. The plots were set for 4-years continuous observation of the change conditions on survival rate, ramification number, height, canopy size and biomass. The result showed that 3 m×3 m and 3 m×4 m were the best density and under these densities, H. scoparium grew vigorously, ramified densely and developed good roots, plant species between the clumps of H. scoparium increased, and the coverage enlarged with an obvious sand-fixation effect. The density greater than 3 m×3 m and 3 m×4 m resulted in H. scoparium dwarfed and developed slowly; the original species between the clumps of H. scoparium disappeared with a poor sand-fixation effect.