国际沙棘研究与开发
國際沙棘研究與開髮
국제사극연구여개발
THE GLOBAL SEABUCKTHORN RESEARCH AND DEVELOPMENT
2014年
1期
18-24,30
,共8页
沙棘%新梢密度%叶密度%百叶重%叶产量
沙棘%新梢密度%葉密度%百葉重%葉產量
사극%신소밀도%협밀도%백협중%협산량
seabuckthorn%new shoots density%leaf density%weight of 100 leaves%leaves yield
沙棘雌株叶产量与果枝数量、新梢数量、叶数量和百叶重量具有相关关系，可通过抽样调查果枝数、新梢密度、叶密度和百叶重4因子估算叶产量；以小样本抽样调查新梢密度和叶密度平均数估计叶总数，确定果枝和新梢平均长度是提高调查精度的关键环节；树冠不同方向和部位果枝新梢的百叶重差异明显，应选择半阴面中位或阴面上位果枝新梢，摘下全部叶称量百叶重。
沙棘雌株葉產量與果枝數量、新梢數量、葉數量和百葉重量具有相關關繫，可通過抽樣調查果枝數、新梢密度、葉密度和百葉重4因子估算葉產量；以小樣本抽樣調查新梢密度和葉密度平均數估計葉總數，確定果枝和新梢平均長度是提高調查精度的關鍵環節；樹冠不同方嚮和部位果枝新梢的百葉重差異明顯，應選擇半陰麵中位或陰麵上位果枝新梢，摘下全部葉稱量百葉重。
사극자주협산량여과지수량、신소수량、협수량화백협중량구유상관관계，가통과추양조사과지수、신소밀도、협밀도화백협중4인자고산협산량；이소양본추양조사신소밀도화협밀도평균수고계협총수，학정과지화신소평균장도시제고조사정도적관건배절；수관불동방향화부위과지신소적백협중차이명현，응선택반음면중위혹음면상위과지신소，적하전부협칭량백협중。
The leaves yield of seabuckthorn female plants has a great relationship with the number of fruit branches, amount of new shoots and leaves, and weight of leaves. So leaf yield can be estimated by sample survey as following 4 factors, i.e. fruit branches, new shoots and leaf density, and weight of 100 leaves. The total number of leaves can be estimated by survey the average number of new shoots density and leaf density, the key steps in survey is to identify the fruit branches and new shoots length; the weight of 100 leaves are obviously different on different parties of canopy, so the new shoots or fruit branches should be chosen from semi-shadow and median location or shadow upper location. 100 leaves weight is test by picking up all leaves and divided by leaf number.
