长江源土壤理化性质数据集（2020）

通过对长江源植被和土壤的调查及分析，评估不同放牧强度对高寒草甸的影响。于2020年8月野外调查设置植被调查样方，分析0-5cm和5-10cm土壤中pH[1]、含水量[2]、电导率[3]、容重[4]、粒径组成[5]、全氮[6]、有机碳[7]、全磷[8]、全钾[8]含量。全面了解不同放牧强度下土壤特征的响应，揭示草地利用强度对区域环境影响的程度和强度，并提出草地合理利用管理对策。
参考文献：
[1] 生态环境部. 土壤pH的测定(HJ962-2018). 北京：中国环境科学出版社，2019
[2] 生态环境部. 土壤干物质和水分的测定(HJ613-2011). 北京：中国环境科学出版社，2011
[3] 生态环境部. 土壤电导率的测定(HJ802-2016). 北京：中国环境科学出版社，2016
[4] 中华人民共和国农业部. 土壤检测第4部分：土壤容重的测定(NY/T1121.4-2006). 北京：中国农业出版社，2006
[5] Zhang, H., Jiang, Y., Ding, M. and Zeng, H. Level, source identification, and risk analysis of heavy metal in surface sediments from river-lake ecosystems in the Poyang Lake, China. Environmental Science and Pollution Research, 2017,24, 21902-21916.
[6] 环境保护部. 土壤质量全氮的测定凯氏法(HJ717-2014). 北京：中国环境科学出版社，2015
[7] 环境保护部. 土壤有机碳的测定燃烧氧化-滴定法(HJ658-2013). 北京：中国环境科学出版社，2013
[8] Zhou, H., Zhang, D., Jiang, Z., Sun, P., Xiao, H., Yuxin, W., Chen, J. Changes in the soil microbial communities of alpine steppe at Qinghai-Tibetan Plateau under different degradation levels. Science of the Total Environment, 2019，651, 2281-2291.

This study aims to evaluate the impacts of varying grazing intensities on alpine meadows via investigations and analyses of vegetation and soil in the source region of the Yangtze River. In August 2020, field surveys were conducted to establish vegetation survey quadrats. Analyses were performed for the following indicators in 0-5 cm and 5-10 cm soil layers: soil pH[1], soil water content[2], soil electrical conductivity[3], soil bulk density[4], soil particle size composition[5], total nitrogen[6], soil organic carbon[7], total phosphorus[8], and total potassium[8]. This research comprehensively clarifies the responses of soil characteristics to different grazing intensities, reveals the degree and intensity of the impacts of grassland utilization intensity on the regional environment, and puts forward countermeasures for the rational utilization and management of grasslands.

References:
[1] Ministry of Ecology and Environment. Determination of Soil pH (HJ962-2018). Beijing: China Environmental Science Press, 2019.
[2] Ministry of Ecology and Environment. Determination of Soil Dry Matter and Moisture (HJ613-2011). Beijing: China Environmental Science Press, 2011.
[3] Ministry of Ecology and Environment. Determination of Soil Electrical Conductivity (HJ802-2016). Beijing: China Environmental Science Press, 2016.
[4] Ministry of Agriculture and Rural Affairs of the People's Republic of China. Soil Testing Part 4: Determination of Soil Bulk Density (NY/T1121.4-2006). Beijing: China Agriculture Press, 2006.
[5] Zhang, H., Jiang, Y., Ding, M. & Zeng, H. Level, source identification, and risk analysis of heavy metal in surface sediments from river-lake ecosystems in the Poyang Lake, China. Environmental Science and Pollution Research, 2017, 24, 21902-21916.
[6] Ministry of Environmental Protection. Determination of Total Nitrogen in Soil Quality by Kjeldahl Method (HJ717-2014). Beijing: China Environmental Science Press, 2015.
[7] Ministry of Environmental Protection. Determination of Soil Organic Carbon by Combustion Oxidation-Titration Method (HJ658-2013). Beijing: China Environmental Science Press, 2013.
[8] Zhou, H., Zhang, D., Jiang, Z., Sun, P., Xiao, H., Wang, Y. & Chen, J. Changes in the soil microbial communities of alpine steppe on the Qinghai-Tibetan Plateau under different degradation levels. Science of the Total Environment, 2019, 651, 2281-2291.

搜集汇总

背景与挑战

背景概述

长江源土壤理化性质数据集（2020）包含2020年8月在长江源区采集的0-5cm和5-10cm土壤层的理化性质数据，旨在评估不同放牧强度对高寒草甸的影响。数据集提供了土壤pH、含水量、电导率、容重、粒径组成、全氮、有机碳、全磷、全钾等指标的详细测定结果，空间分辨率为100m - 1km，数据以表格形式存储，可通过EXCEL打开查看和分析。