根据中国第一次土壤普查得到的土壤各类型分布面积、采样数据、土壤有机质含量，运用GIS技术，来估算土壤碳库。

This paper adopted the soil distribution area, sampling data and soil organic content from the first soil general survey and applied the technique of GIS to estimate soil carbon reservior in China.

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使用循环采样设计方案，对海北沼泽化湿地生态系统涡度相关通量观测塔的通量贡献区内叶面积指数进行了实地调查。

Cyclic sampling design was used to investigate leaf area index(LAI)in flux contributing source of eddy covariance flux tower swamp ecosystems of Haibei.

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以全面采样取代了几处小面积的对照取样：压实采样精确度可达100%。

Comprehensive sampling instead of several small control samples: 100% of the specimen compacted.

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