Effects of cultivation and agricultural abandonment on soil carbon, nitrogen and phosphorus in a meadow steppe in eastern Inner Mongolia

doi:10.1016/j.agee.2020.107284

	Effects of cultivation and agricultural abandonment on soil carbon, nitrogen and phosphorus in a meadow steppe in eastern Inner Mongolia
	Wang, Chu ; Li, Linghao1 ; Yan, Yuchun ; Cai, Yurong ; Xu, Dawei ; Wang, Xu ; Chen, Jinqiang ; Xin, Xiaoping
	2021
发表期刊	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN	0167-8809
卷号	309
摘要	Grassland conversion into cropland and further into abandoned land may result in substantial changes when such conversion neglects the historical context of the land use pattern in question in most cases. The objectives of this study were to examine the effects of land use shifts on soil organic carbon (OC), total nitrogen (TN) and total phosphorus (TP) in a meadow steppe in eastern Inner Mongolia. Four sites within 50 km were selected as replicates, and within each of the four sites, the plant and soil properties were investigated separately for three land use types, grassland, cropland and abandoned land from cropland, to reveal the effect of land use changes on soil nutrient contents and stocks. We found that cropland had the highest canopy biomass, whereas grassland maintained the highest root biomass. Significant decreases in OC and TN contents occurred mainly in the 0-20 cm soil layer with the conversion of grassland into cropland, whereas TP contents significantly increased in the 10-30 cm soil profile. Abandonment obviously increased the soil OC and TN contents in the 0-20 cm soil layer compared with cropland, although the levels of native grassland were not reached. The C:N, C:P and N:P ratios were highest in the entire soil profile for the grassland followed by the abandoned land and then the cropland. Changes in nutrient stocks with land use shifts showed similar trends as those in the relevant nutrient contents, but the change ratios of stocks among different land use types could be significantly underestimated due to the cultivation-compaction effect. Thus, we concluded that the abandonment and maintenance of native grasslands should be adopted to protect and maintain the soil organic matter and nitrogen in the meadow steppe of Inner Mongolia.
关键词	Abandonment of cropland Cultivation Grassland Soil nutrients
学科领域	Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
DOI	10.1016/j.agee.2020.107284
收录类别	SCI
语种	英语
WOS关键词	LAND-USE CHANGE ; ORGANIC-CARBON ; GRASSLAND ; STORAGE ; MATTER ; STOCKS ; CHINA ; SEQUESTRATION ; ACCUMULATION ; RESTORATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000611898300006
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1873-2305
资助机构	National Key Research and Development Program of China [2016YFC0500603] ; National Natural Science Foundation of China [41671044, 42071070] ; National Nonprofit Institute Research Grant of CAAS [G202002-1] ; International S & T Cooperation Project of China [2017YFE0104500] ; State Key Laboratory of Grassland Agro-Ecosystems (Lanzhou University) [SKLGAE202006]
作者邮箱	yanyuchun@caas.cn
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26747
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Bot, Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chu,Li, Linghao,Yan, Yuchun,et al. Effects of cultivation and agricultural abandonment on soil carbon, nitrogen and phosphorus in a meadow steppe in eastern Inner Mongolia[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2021,309.
APA	Wang, Chu.,Li, Linghao.,Yan, Yuchun.,Cai, Yurong.,Xu, Dawei.,...&Xin, Xiaoping.(2021).Effects of cultivation and agricultural abandonment on soil carbon, nitrogen and phosphorus in a meadow steppe in eastern Inner Mongolia.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,309.
MLA	Wang, Chu,et al."Effects of cultivation and agricultural abandonment on soil carbon, nitrogen and phosphorus in a meadow steppe in eastern Inner Mongolia".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 309(2021).

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Effects_of_cultivati（2279KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览请求全文