| 5 | 1/1 | 返回列表 |
| 查看: 663 | 回復(fù): 4 | ||
| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ,點(diǎn)擊這里進(jìn)行查看 | ||
guizi2005新蟲 (初入文壇)
|
[求助]
希望好心的人,幫我翻譯一下這段文字,畢業(yè)急發(fā)文章需要的摘要~~~小妹在這里跪謝 !
|
|
通過測(cè)定并分析不同種植年限(種植1a,3a,4a,5a及8a)人工苜蓿草地苜蓿葉片、莖稈及0~20cm土壤中C、N、P含量及其化學(xué)計(jì)量比,研究了種植年限對(duì)人工苜蓿草地土壤及植物養(yǎng)分含量及其化學(xué)計(jì)量比的影響。結(jié)果表明:1)0~20cm土壤C、N含量隨種植年限的增加,呈先增后減的趨勢(shì),P含量與之相反,各年限間有顯著差異(P<0.05),土壤C∶N及C∶P呈現(xiàn)出“金字塔”分布模式。2)隨種植年限的增加,苜蓿葉片C含量總體呈下降趨勢(shì),P含量呈先增后降趨勢(shì),莖各養(yǎng)分的變化規(guī)律與土壤養(yǎng)分變化規(guī)律相似,變化幅度小于葉片養(yǎng)分。葉片與莖的C 及N 的變化規(guī)律均與相應(yīng)P含量的變化一致。3)苜蓿葉片N:P及C:P與葉片P含量呈顯著負(fù)相關(guān),與葉片N含量無顯著相關(guān)性,土壤P與莖的C、N、P及化學(xué)計(jì)量特征均有一定相關(guān)性。 |
鐵桿木蟲 (正式寫手)

木蟲 (正式寫手)
|
By measuring and analyzing content and stoichiometry of C, N, P in different planting years (planting 1a, 3a, 4a, 5a and 8a) artificial on alfalfa grasslands alfalfa leaf, stem and 0 ~ 20cm soil , study the effect planting period caused for soil and plant nutrient content and their stoichiometric in ratioartificial alfalfa. The results show that: 1) in the 0 ~ 20cm soil content of C, N increased with the increase of planting years, increased first and then decreased, P content in contrast, owning significant difference between age (P <0.05), in soil C: N and C: P showing a "pyramid" distribution pattern. 2) With the increase of years of planting, alfalfa leaf content of C overall downward in trend, content of P increased first and then decreased, the variation of each nutrient of stem is similar to soil nutrient variation,and smaller than the nutrient variations of leaf . the C and N of leaves and stems with the corresponding variation of P content were consistent with the change. 3) in alfalfa leaf N: P and C: P were significantly negatively correlated with leaf P content , owning no significant correlation with leaf N content , soil P and the stems of C, N, P, and stoichiometry have a certain relevance. 非專業(yè),僅供參考 |

|
本帖內(nèi)容被屏蔽 |
捐助貴賓 (正式寫手)
| 5 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 340求調(diào)劑 +5 | jhx777 2026-03-27 | 5/250 |
|
|---|---|---|---|---|
|
[考研] 一志愿上海理工能源動(dòng)力(085800)310分求調(diào)劑 +3 | zhangmingc 2026-03-27 | 4/200 |
|
|
[考研] 材料與化工085600,總分304,本科有兩篇sci參與,求調(diào)劑 +10 | 幸運(yùn)的醬醬 2026-03-22 | 12/600 |
|
|
[考研] 考研化學(xué)308分求調(diào)劑 +10 | 你好明天你好 2026-03-23 | 12/600 |
|
|
[考研] 085600,材料與化工321分,求調(diào)劑 +9 | 大饞小子 2026-03-27 | 9/450 |
|
|
[考研] 求調(diào)劑 +3 | 劉柯@ 2026-03-24 | 4/200 |
|
|
[考研] 315調(diào)劑 +4 | 0860求調(diào)劑 2026-03-26 | 5/250 |
|
|
[考研]
材料學(xué)碩,求調(diào)劑
6+5
|
糖葫蘆888ll 2026-03-22 | 10/500 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +4 | 崔wj 2026-03-26 | 4/200 |
|
|
[考研] 321求調(diào)劑 +6 | Ymlll 2026-03-24 | 6/300 |
|
|
[考研] 一志愿北京化工大學(xué)材料與化工(085600)296求調(diào)劑 +9 | 稻妻小編 2026-03-26 | 9/450 |
|
|
[考研] 086000生物與醫(yī)藥292求調(diào)劑 +6 | 小小陳小小 2026-03-22 | 9/450 |
|
|
[考研] 一志愿南航 335分 | 0856材料化工 | GPA 4.07 | 有科研經(jīng)歷 +6 | cccchenso 2026-03-23 | 6/300 |
|
|
[考研] 生物技術(shù)與工程 +3 | 1294608413 2026-03-25 | 4/200 |
|
|
[考研] 306求0703調(diào)劑一志愿華中師范 +10 | 紙魚ly 2026-03-21 | 11/550 |
|
|
[考研] 300求調(diào)劑,材料科學(xué)英一數(shù)二 +5 | leaflight 2026-03-24 | 5/250 |
|
|
[考研] 一志愿山東大學(xué)藥學(xué)學(xué)碩求調(diào)劑 +3 | 開開心心沒煩惱 2026-03-23 | 4/200 |
|
|
[考研] 石河子大學(xué)(211、雙一流)碩博研究生長(zhǎng)期招生公告 +3 | 李子目 2026-03-22 | 3/150 |
|
|
[考研] 一志愿南大,0703化學(xué),分?jǐn)?shù)336,求調(diào)劑 +3 | 收到VS 2026-03-21 | 3/150 |
|
|
[考研] 求助 +5 | 夢(mèng)里的無言 2026-03-21 | 6/300 |
|