24小时热门版块排行榜

返回列表

本帖产生 1 个翻译EPI ，点击这里进行查看

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

guizi2005

新虫 (初入文坛)

应助: 0 (幼儿园)
金币: 4
帖子: 5
在线: 3.5小时
虫号: 1905427
注册: 2012-07-22
专业: 保护生物学与恢复生态学

[求助] 希望好心的人，帮我翻译一下这段文字，毕业急发文章需要的摘要~~~小妹在这里跪谢！

通过测定并分析不同种植年限(种植1a，3a，4a，5a及8a)人工苜蓿草地苜蓿叶片、茎秆及0~20cm土壤中C、N、P含量及其化学计量比，研究了种植年限对人工苜蓿草地土壤及植物养分含量及其化学计量比的影响。结果表明:1）0~20cm土壤C、N含量随种植年限的增加，呈先增后减的趋势，P含量与之相反，各年限间有显著差异（P<0.05），土壤C∶N及C∶P呈现出“金字塔”分布模式。2）随种植年限的增加，苜蓿叶片C含量总体呈下降趋势，P含量呈先增后降趋势，茎各养分的变化规律与土壤养分变化规律相似，变化幅度小于叶片养分。叶片与茎的C

及N

的变化规律均与相应P含量的变化一致。3）苜蓿叶片N：P及C：P与叶片P含量呈显著负相关，与叶片N含量无显著相关性，土壤P与茎的C、N、P及化学计量特征均有一定相关性。

回复此楼

» 猜你喜欢

依托企业入选了国家启明计划青年人才。有无高校可以引进的。已经有13人回复
AI 太可怕了，写基金时，提出想法，直接生成的文字比自己想得深远，还有科学性已经有11人回复
表哥与省会女结婚，父母去帮带孩子被省会女气回家生重病了已经有9人回复
同年申请2项不同项目，第1个项目里不写第2个项目的信息，可以吗已经有10人回复
依托企业入选了国家启明计划青年人才。有无高校可以引进的。已经有11人回复

1楼 2013-10-24 09:56:07

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

leilejiayou

木虫 (正式写手)

翻译EPI: 26
应助: 30 (小学生)
金币: 3135.3
散金: 19
红花: 6
帖子: 474
在线: 122.8小时
虫号: 2307273
注册: 2013-02-28
性别: MM
专业: 聚合物共混与复合材料

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★
guizi2005: 金币+10, 翻译EPI+1, ★★★很有帮助, 谢谢啦~ 2013-11-04 14:52:54

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.
非专业，仅供参考