Effects of grazing exclusion on plant community and soil physicochemical properties in a desert steppe on the Loess Plateau, China

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	Effects of grazing exclusion on plant community and soil physicochemical properties in a desert steppe on the Loess Plateau, China
	Guang-yu Zhu 1; Lei Deng 1; Xi-biao Zhang 2; Zhou-ping Shangguan 1
刊名	Ecological Engineering
	2016
通讯作者邮箱	denglei011124@163.com; shangguan@ms.iswc.ac.cn
期号	90 页码:372-381
关键词	Fencing Plant diversity Soil particle Soil carbon Soil nitrogen Soil phosphorus
通讯作者	Deng, L ; Shangguan, ZP
英文摘要	0px; "> Although fencing is an effective restoration strategy used to achieve the global sustainability of grassland ecosystem, it is unclear from the literature whether fencing results in positive effects on soil physicochemical properties, plant diversity and the relationship between soil particle and soil chemical properties in a desert steppe on the Loess Plateau. Therefore, we selected fenced communities and grazed communities to study the effects of grazing exclusion on desert grassland on the Loess Plateau in China. Our results indicate that plant coverage, plant height, richness index, above- and below-ground biomass, root/shoot ratio, the number of grasses and the number of perennials increased significantly, whereas litter biomass, the number of forbs and annuals significantly decreased after approximately 12 years of fencing. Fencing also resulted in marked increases in ammonium nitrogen (AN) in the 0–10 cm soil depth, soil organic carbon (SOC), total nitrogen (TN), nitrate nitrogen (NN), clay and silt in the 0–30 cm soil depth and soil total phosphorus (TP) in 0–100 cm soil depth. Our results also indicated that SOC, TN, NN, clay, silt, sand and belowground biomass were significantly affected by land use type, soil layer and their interaction between land use type and soil layer. However, AN was affected by only land use type, and TP was affected by land use type and soil layer but not their interaction. In addition, there was s significant correlation between soil chemical properties (SOC, TN, TP, NN, AN) and soil particles (silt, clay and sand) in the 0–5 cm soil depth. As part of our ongoing research, this paper can produce substantial ecological benefits by contributing to the development of a more scientific strategy for grassland management on the Loess Plateau.
语种	英语
WOS记录号	WOS:000373376700047
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7799]
专题	水土保持研究所_水保所科研产出--SCI_2016--SCI
作者单位	1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling 712100, Shaanxi, PR China 2.College of life science and technology, Longdong University, Qingyang 745000, Gansu, PR China
推荐引用方式 GB/T 7714	Guang-yu Zhu,Lei Deng,Xi-biao Zhang,et al. Effects of grazing exclusion on plant community and soil physicochemical properties in a desert steppe on the Loess Plateau, China[J]. Ecological Engineering,2016(90):372-381.
APA	Guang-yu Zhu,Lei Deng,Xi-biao Zhang,&Zhou-ping Shangguan.(2016).Effects of grazing exclusion on plant community and soil physicochemical properties in a desert steppe on the Loess Plateau, China.Ecological Engineering(90),372-381.
MLA	Guang-yu Zhu,et al."Effects of grazing exclusion on plant community and soil physicochemical properties in a desert steppe on the Loess Plateau, China".Ecological Engineering .90(2016):372-381.