Storage, Patterns and Controls of Soil Nitrogen in China

首页> 外文期刊>土壤圈（英文版） >Storage, Patterns and Controls of Soil Nitrogen in China

【24h】

Storage, Patterns and Controls of Soil Nitrogen in China

机译：中国土壤氮素的储存，模式和控制

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

页面导航

摘要
著录项
相关主题

摘要

Soil holds the largest nitrogen (N) pool in terrestrial ecosystems, but estimates of soil N stock remain controversial.Storage and spatial distribution of soil N in China were estimated and the relationships between soil N density and environmental factors were explored using data from China's Second National Soil Survey and field investigation in northwest China and the Tibetan Plateau. China's soil N storage at a depth of one meter was estimated at 7.4 Pg, with an average density of 0.84 kg m-2. Soil N density appeared to be high in southwest and northeast China and low in the middle areas of the country. Soil N density increased from the arid to semi-arid zone in northern China, and decreased from cold-temperate to tropical zone in the eastern part of the country. An analysis of general linear model suggested that climate and vegetation determined the spatial pattern of soil N density for natural vegetation, which explained 75.4% of the total variance.

机译：在陆地生态系统中，土壤拥有最大的氮（N）库，但对土壤氮储量的估算仍存在争议。西北和青藏高原的国家土壤调查和田野调查。据估计，中国一米深的土壤氮存储量为7.4 Pg，平均密度为0.84 kg m-2。中国西南和东北地区土壤氮素浓度较高，而中部地区则较低。从中国北方的干旱区到半干旱区，土壤氮素含量增加，而从东部的冷温区到热带地区，土壤氮素含量下降。对一般线性模型的分析表明，气候和植被决定了天然植被土壤氮密度的空间格局，这解释了总变异的75.4％。

著录项

来源
《土壤圈（英文版）》 |2007年第6期|776-785|共10页
作者

展开▼
作者单位

Department of Ecology, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University,Beijing 100871 China;

School of Environment and Urban Study, Peking University Shenzhen Graduate School, Shenzhen 518055 China;

Department of Ecology, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University,Beijing 100871 China;

Department of Ecology, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University,Beijing 100871 China;

展开▼
收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类农业基础科学;
关键词
Climate, soil nitrogen, soil texture, spatial distribution, vegetation;

机译：气候;土壤氮;土壤质地;空间分布;植被;

Storage, Patterns and Controls of Soil Nitrogen in China

摘要

著录项

相关主题

期刊订阅