中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Nitrogen storage and allocation in China's forest ecosystems

文献类型：期刊论文

作者Xu, Li1; He, Nianpeng1,2
刊名SCIENCE CHINA-EARTH SCIENCES
出版日期2020-04-01
页码10
关键词Forest Nitrogen cycling Nitrogen storage Allocation Climate Soil nutrient Soil texture
ISSN号1674-7313
DOI10.1007/s11430-019-9600-5
通讯作者He, Nianpeng(henp@igsnrr.ac.cn)
英文摘要Forests are important parts of terrestrial ecosystems and play a leading role in regional and global nitrogen (N) cycles. Detailed assessment of N storage and allocation in China's forests is critical to improve the accuracy of regional or global N estimates and to guide policy-makers in the formulation of scientific and effective N management measures. However, the fore st N storage at national scale remains unclear. Based on 4420 forest field-investigated data, we investigated the N storage allocation in China's forests, explored the spatial patterns and influence factors. The data included vegetation information on various organs (i.e., leaf, branch, stem, and root) and soil information at different depths (0-30 cm and 0-100 cm). The total N storage in China's forest ecosystems was 14.45 +/- 8.42 t N hm(-2); 0.86 +/- 0.51 t N hm(-2) (5.95%) in vegetation and 13.59 +/- 8.40 t N hm(-2) (94.05%) in soil (0-100 cm). The storage and allocation of N varied significantly across various regions and forest types. For different ecological regions, N storage varied from 10.34 to 23.11 t N hm(-2), and the allocation ratio of N storage between vegetation and soil (0-100 cm) varied from 0.03 to 0.16. For different forest types, the N storage varied from 12.87 to 18.32 t N hm(-2), and the allocation ratio of N storage between vegetation and soil (0-100 cm) varied from 0.03 to 0.09. The spatial patterns relative to N storage and allocation in forests were different. Climate was the primary factor influencing the spatial variation in forest N storage, while soil texture was the main factor influencing the spatial variation in N allocation. These first estimates of N storage and allocation ratio in China's forests are keys for improving the fitting accuracy of regional N cycle models and provide a reference for regional management of forest N.
WOS关键词SOIL ORGANIC-CARBON ; TERRESTRIAL ECOSYSTEMS ; GLOBAL PATTERNS ; WOODY-PLANTS ; LEAF ; TEMPERATURE ; PHOSPHORUS ; LIMITATION ; VEGETATION ; DYNAMICS
资助项目National Natural Science Foundation of China[31800368] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19020302] ; National Key R&D Program of China[2016YFC0500202]
WOS研究方向Geology
语种英语
WOS记录号WOS:000523106800003
出版者SCIENCE PRESS
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key R&D Program of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/133498]  
专题中国科学院地理科学与资源研究所
通讯作者He, Nianpeng
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Li,He, Nianpeng. Nitrogen storage and allocation in China's forest ecosystems[J]. SCIENCE CHINA-EARTH SCIENCES,2020:10.
APA Xu, Li,&He, Nianpeng.(2020).Nitrogen storage and allocation in China's forest ecosystems.SCIENCE CHINA-EARTH SCIENCES,10.
MLA Xu, Li,et al."Nitrogen storage and allocation in China's forest ecosystems".SCIENCE CHINA-EARTH SCIENCES (2020):10.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。