草原与草坪
草原與草坪
초원여초평
GRASSLAND AND TURF
2014年
5期
43-48
,共6页
小花棘豆%营养物质%能量%海拔
小花棘豆%營養物質%能量%海拔
소화극두%영양물질%능량%해발
Oxytropis glabra%nutrients%energy%altitudinal gradient
测定了不同海拔高度下小花棘豆含水量,N、P、K 等营养元素含量以及能量等指标,分析了不同海拔高度对小花棘豆植株各部分营养物质与能量分配的影响,研究了海拔高度对小花棘豆营养物质分配及生殖分配的作用规律。结果表明：N、P、K 等元素随海拔高度的增加表现出逐渐增加的趋势,3种营养元素分别在海拔为2400 m,2600 m 和2400 m 时达到最高值；能量在根中表现为2600 m 时最高,达26.01%,茎和叶中的变化在2500 m 和2600 m 较高,花中的能量分配在2400 m 时最高,为27.00%。小花棘豆花和叶 N、P、K 的比例占总比较大,花在生长过程中消耗的能量也最多,说明 N、P、K 等营养元素和能量对其生长发育起到了重要的作用。
測定瞭不同海拔高度下小花棘豆含水量,N、P、K 等營養元素含量以及能量等指標,分析瞭不同海拔高度對小花棘豆植株各部分營養物質與能量分配的影響,研究瞭海拔高度對小花棘豆營養物質分配及生殖分配的作用規律。結果錶明：N、P、K 等元素隨海拔高度的增加錶現齣逐漸增加的趨勢,3種營養元素分彆在海拔為2400 m,2600 m 和2400 m 時達到最高值；能量在根中錶現為2600 m 時最高,達26.01%,莖和葉中的變化在2500 m 和2600 m 較高,花中的能量分配在2400 m 時最高,為27.00%。小花棘豆花和葉 N、P、K 的比例佔總比較大,花在生長過程中消耗的能量也最多,說明 N、P、K 等營養元素和能量對其生長髮育起到瞭重要的作用。
측정료불동해발고도하소화극두함수량,N、P、K 등영양원소함량이급능량등지표,분석료불동해발고도대소화극두식주각부분영양물질여능량분배적영향,연구료해발고도대소화극두영양물질분배급생식분배적작용규률。결과표명：N、P、K 등원소수해발고도적증가표현출축점증가적추세,3충영양원소분별재해발위2400 m,2600 m 화2400 m 시체도최고치；능량재근중표현위2600 m 시최고,체26.01%,경화협중적변화재2500 m 화2600 m 교고,화중적능량분배재2400 m 시최고,위27.00%。소화극두화화협 N、P、K 적비례점총비교대,화재생장과정중소모적능량야최다,설명 N、P、K 등영양원소화능량대기생장발육기도료중요적작용。
Based on the test of water content,N,P,K,and energy distribution of Oxytropis glabra grown at different altitudes,the infuence of the altitude on nutrients and energy distributions of O.glabra was studied. The results showed that the nutrients of N,P,and K gradually increased with the increase of altitude.The high-est value of N,P,and K appeared at the altitude of 2 400 m,2 600 m and 2 400 m,respectively.The highest ener-gy content was 26% in root at 2600m,while the highest values in stems and leaves were at 2 500 m and 2 600 m, respectively.The water content in roots,stems,and leaves were the highest value at 2 500 m,2 700 m,and 2 600 m respectively.The proportions of N,P,K and water in flowers and leaves were higher than that in roots and stems,and the flowers showed the largest energy consumption during the growth.
