土壤团聚体分析方法总结

热度 1 徐姗 2012-5-30 00:23

土壤团聚体分析方法总结 2012.5.29 徐姗 土壤团聚体分析方法总结-徐姗-2012.5.29.docx 1. 将取好的土过 8mm 筛，并把石块及大于 8mm 的根系挑出，风干。 2. 用土壤团聚体测定仪 ( 套筛： 2000um, 250um, 53um ) 进行团聚体分级。 3. ...

10863 次阅读|3 个评论 热度 1

科学与数学？

热度 6 徐姗 2012-3-4 22:17

凌乱不成体系的一点点思考： 科学就是数学化吗？“数学在整个科学体系中的终极地位就是给予科学最简明、最高效的表达手法，就是为我们提供一种认识和描绘世界的最精确、最美妙的工具。”？？ 1. 我们在科研中有了新的发现，新的想法，这种发现或者想法可能比较抽象，模糊，如何把自己的这种发现与想法用合适 ...

2915 次阅读|12 个评论 热度 6

当我们这样读 Abstract

热度 2 徐姗 2012-3-4 22:07

From GCB ( Stevens et al., 2006 ): 1. In this study we investigate the impact of ... on ... using a field survey of ... 2. Our aim is to identify ... , and to shed light on the mechanisms that may be driving ... 3. ... were studied ... 4. ... were surveyed and ... wer ...

3834 次阅读|2 个评论 热度 2

关于写作-初学者的一点心得

徐姗 2012-2-28 23:32

今天的一点心得： 1.清楚概念 ，对某一个概念在一篇文章中用正式的、一致的表达方式。切忌一个概念用多个且不正式（或不专业）的表达方式。防止不小心偷换概念，比如，前面讲“陆地生态系统”，后面却把“陆地生态系统”当成“地下过程”。 2.确定主题 ，围绕一个主题说事，或深或浅，切忌东拉西扯。 3.逻辑清晰 ， ...

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Gains from Wood et al. (2009)

徐姗 2012-2-17 17:11

Gains from Wood et al. (2009) – Rain forest nutrient cycling and productivity in response to large-scale litter manipulation Shan Xu There exists time lag between litter production and the release of nutrient from litter . Seasonal variability, forest age and soil fertility influ ...

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Aggregate separation method (1)

热度 1 徐姗 2012-2-17 17:09

Aggregate separation method (1) Shan Xu In the review of Kuzyakov (2010) suggested, “Only a few studies have evaluated the contribution of individual stabilization mechanisms to the extra CO 2 released during PE”. In addition, Janssens et al. (2010) suggested ...

2995 次阅读|1 个评论 热度 1

Some notes for meta-analysis

热度 1 徐姗 2012-2-17 17:08

-Notes for meta-analysis--Shan Xu-Jan.8, 2012.docx http://user.qzone.qq.com/290125425/infocenter

2215 次阅读|2 个评论 热度 1

Literature notes of Fontaine et al.(2011)

徐姗 2012-2-17 17:04

Literature notes of Fontaine et al.(2011) – Fungi mediate long term sequestration of carbon and nitrogen in soil through their priming effect Shan Xu A. Background of this study: What is the importance of microbes in mediating SOM dynami ...

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The notes from Yang et al., 2011

徐姗 2012-2-17 17:01

The notes from Yang et al., 2011- Variation in carbon isotope discrimination in Cleistogenes squarrosa (Trin.) Keng: patterns and drivers at tiller, local, catchment, and regional scales Shan Xu A 13 C natural tracer method was applied in many studies to separate root-derived ...

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