干旱区生态环境知识资源中心(Arid): Long-term impacts of grazing intensity on soil carbon sequestration and selected soil properties in the arid Eastern Cape, South Africa

Arid

DOI	10.1002/jsfa.7302
	Long-term impacts of grazing intensity on soil carbon sequestration and selected soil properties in the arid Eastern Cape, South Africa
	Talore, Deribe G.1; Tesfamariam, Eyob H.2; Hassen, Abubeker 1; Du Toit, J. C. O.3; Klampp, Katja 4; Jean-Francois, Soussana 5
通讯作者	Talore, Deribe G.
来源期刊	JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
ISSN	0022-5142
EISSN	1097-0010
出版年	2016
卷号	96 期号:6 页码:1945-1952
英文摘要	BACKGROUND: Little is known about how basic soil properties respond to contrasting grazing intensities in the Karoo biome, South Africa. The aim of this studywas to investigate impacts of long-term (>75 years) grazing at 1.18 heads ha(-1) (heavy; CGH), 0.78 heads ha(-1) (light; CGL), and exclosure on selected soil properties. Soil samples were collected to a depth of 60 cm from the long-term experimental site of Grootfontein Agricultural Development Institute, Eastern Cape. The samples were analyzed for C, N, bulk density and infiltration rate, among others. RESULTS: Generally, heavy and light grazing reduced soil N storage by 27.5% and 22.6%, respectively, compared with the exclosure. Animal exclusion improved water infiltration rate and C stocks significantly (P < 0.05), which was 0.128, 0.097, and 0.093 Mg ha(-1) yr(-1) for exclosure, CGL and CGH, respectively. Soil penetration resistance was higher for grazing treatments in the top 3-7 cm soil layer but for exclosure at the top 1 cmsoil surface. CONCLUSION: Although livestock exclusion has the potential to improve C sequestration, a sufficient resting period for 1-2 years followed by three consecutive grazing years at light stocking rate would be ideal for sustainable livestock production in this arid region of South Africa. (C) 2015 Society of Chemical Industry
英文关键词	arid lands carbon continuous grazing exclosure nitrogen soil properties
类型	Article
语种	英语
国家	South Africa ; France
收录类别	SCI-E
WOS记录号	WOS:000372524700011
WOS关键词	SEMIARID SAVANNA ; ORGANIC-CARBON ; INNER-MONGOLIA ; LAND-USE ; MANAGEMENT ; RANGELAND ; NITROGEN ; STORAGE ; STEPPE ; ALPINE
WOS类目	Agriculture, Multidisciplinary ; Chemistry, Applied ; Food Science & Technology
WOS研究方向	Agriculture ; Chemistry ; Food Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/194835
作者单位	1.Univ Pretoria, Dept Anim & Wildlife Sci, ZA-0002 Pretoria, South Africa; 2.Univ Pretoria, Dept Plant Prod & Soil Sci, ZA-0002 Pretoria, South Africa; 3.Grootfontein Agr Res Inst, Dept Anim & Range Sci, Eastern Cape, South Africa; 4.INRA, Grassland Ecosyst Res, Paris, France; 5.INRA, French Natl Inst Agron Res, Paris, France
推荐引用方式 GB/T 7714	Talore, Deribe G.,Tesfamariam, Eyob H.,Hassen, Abubeker,et al. Long-term impacts of grazing intensity on soil carbon sequestration and selected soil properties in the arid Eastern Cape, South Africa[J],2016,96(6):1945-1952.
APA	Talore, Deribe G.,Tesfamariam, Eyob H.,Hassen, Abubeker,Du Toit, J. C. O.,Klampp, Katja,&Jean-Francois, Soussana.(2016).Long-term impacts of grazing intensity on soil carbon sequestration and selected soil properties in the arid Eastern Cape, South Africa.JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE,96(6),1945-1952.
MLA	Talore, Deribe G.,et al."Long-term impacts of grazing intensity on soil carbon sequestration and selected soil properties in the arid Eastern Cape, South Africa".JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 96.6(2016):1945-1952.