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中国北方草原放牧管理与植物和土壤特性的关系。

Nexus of grazing management with plant and soil properties in northern China grasslands.

机构信息

Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Life Science and Technology, Gansu Agricultural University, Lanzhou, 730070, China.

Agriculture and Agri-Food Canada, Swift Current Research and Development Centre, Swift Current, Saskatchewan, Canada.

出版信息

Sci Data. 2020 Feb 4;7(1):39. doi: 10.1038/s41597-020-0375-0.

Abstract

Grasslands provide habitats for living organisms and livelihoods for ~800 million people globally. Many grasslands in developing countries are severely degraded. Some measures have been taken to curb the trend of degradation for decades. It is important to determine how decade-long rejuvenation efforts affected grassland ecosystems. We identified 65 data-rich studies based on six criteria, from >2500 relevant publications, and generated a dataset with 997 rows and 12 variables. The dataset covers different grazing intensities (grazing exclusion, light, moderate, and heavy grazing) and their impacts on plant traits (vegetation coverage, aboveground and root biomass, and plant diversity) and soil physiochemical properties (bulk density, moisture content, organic C, total and available N, total and available P, C:N ratio, and pH). The dataset could be used to (i) quantify the effectiveness of rejuvenation processes by determining the impact on plant community and soil properties, (ii) perform comprehensive analyses to elucidate large-picture effects of grazing management and rejuvenation, and (iii) analyze the impact of grass-climate-soil-human interactions on grassland ecosystem sustainability.

摘要

草原为全球约 8 亿人口提供了生物栖息地和生计。发展中国家的许多草原严重退化。几十年来,已经采取了一些措施来遏制退化趋势。重要的是要确定长达十年的恢复努力如何影响草原生态系统。我们根据六个标准,从 2500 多篇相关文献中确定了 65 项数据丰富的研究,并生成了一个包含 997 行和 12 个变量的数据集。该数据集涵盖了不同的放牧强度(放牧排除、轻度、中度和重度放牧)及其对植物特征(植被覆盖度、地上和根系生物量以及植物多样性)和土壤理化性质(容重、含水量、有机碳、总氮和有效氮、总磷和有效磷、碳氮比和 pH 值)的影响。该数据集可用于:(i)通过确定对植物群落和土壤特性的影响来量化恢复过程的有效性;(ii)进行综合分析,阐明放牧管理和恢复的大图景效应;(iii)分析草原-气候-土壤-人类相互作用对草原生态系统可持续性的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/91f9/7000820/371a49ee4be4/41597_2020_375_Fig1_HTML.jpg

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