久久久久亚洲精品男人的天堂,日本韩国男男作爱GAYWWW,特黄AAAAAAA片免费视频,av天堂电影网

河南榮程聯(lián)合科技有限公司

中科院科學(xué)家利用LGR二氧化碳同位素分析儀對(duì)土壤有機(jī)物的檢測(cè)

時(shí)間:2016-4-19 閱讀:2588
分享:

LGR的二氧化碳同位素分析儀幫助中國(guó)科學(xué)院的科學(xué)家監(jiān)測(cè)“新鮮有機(jī)物的質(zhì)量對(duì)土壤有機(jī)物的啟動(dòng)和微生物底物利用率模式的影響”

 

Quality of fresh organic matter affects priming of soil organic matter and substrate utilization patterns of microbes

Hui Wang1, 2 , Thomas W. Boutton3 , Wenhua Xu1 , Guoqing Hu1, 2 , Ping Jiang1 , Edith Bai1

 

Abstract

Changes in biogeochemical cycles and the climate system due to human activities are expected to change the quantity and quality of plant litter inputs to soils. How changing quality of fresh organic matter (FOM) might influence the priming effect (PE) on soil organic matter (SOM) mineralization is still under debate. Here we determined the PE induced by two 13C-labeled FOMs with contrasting nutritional quality (leaf vs. stalk of Zea mays L.). Soils from two different forest types yielded consistent results: soils amended with leaf tissue switched faster from negative PE to positive PE due to greater microbial growth compared to soils amended with stalks. However, after 16 d of incubation, soils amended with stalks had a higher PE than those amended with leaf. Phospholipid fatty acid (PLFA) results suggested that microbial demand for carbon and other nutrients was one of the major determinants of the PE observed. Therefore, consideration of both microbial demands for nutrients and FOM supply simultaneously is essential to understand the underlying mechanisms of PE. Our study provided evidence that changes in FOM quality could affect microbial utilization of substrate and PE on SOM mineralization, which may exacerbate global warming problems under future climate change.

srep10102-f6.jpg

 

 

會(huì)員登錄

×

請(qǐng)輸入賬號(hào)

請(qǐng)輸入密碼

=

請(qǐng)輸驗(yàn)證碼

收藏該商鋪

X
該信息已收藏!
標(biāo)簽:
保存成功

(空格分隔,最多3個(gè),單個(gè)標(biāo)簽最多10個(gè)字符)

常用:

提示

X
您的留言已提交成功!我們將在第一時(shí)間回復(fù)您~
撥打電話 產(chǎn)品分類
在線留言
亚洲爆乳精品无码一区二区三区| 野花日本中文版免费观看| 色噜噜狠狠一区二区三区| 边摸边脱吃奶边高潮视频免费| 欧产日产国产精品| 美女扒开腿让男人桶爽APP免费看| 青草影院内射中出高潮| 无码AV中文字幕久久专区| 国产精品久久久久久久毛片| 丰满岳乱妇在线观看中字无码| 在线成人精品国产区免费| 东京热毛片无码DVD一二三区| 国精产品一区二区三区有限| 韩国A级作爱片无码| 少妇洁白无删减版178章| 99爱在线观看免费完整版| 久99久精品免费视频热七七| 一本大道一卡二大卡三卡免费| 日本熟妇XXXX乱| 亚洲成年人免费网站一区二区三区| 亚洲天堂男人的av天堂| 最好的2019国语中字| 国产成人涩涩涩视频在线观看| 欧美精品中文字幕亚洲专区| 欧美一区在线观看视频| 久久999精品国产只有精品| 久久香蕉国产线看观看精品YW| 国产毛片av在线| 久久精品无码一区二区三区| 美女视频免费是黄的网站| 亚洲AV无码码潮喷在线观看| 日韩 国产 在线观看| 97精品国产手机| 精品一卡二卡四卡日产乱码| 爱如潮水3免费观看日本高清| 日本高清视频www| 人人妻人人藻人人爽欧美一区| 内射射满骚B含着小说| IPX327新婚被公持续侵犯| 久久免费视频一区| 不卡视频一区二区|