干旱区生态环境知识资源中心(Arid): The effect of exclosures on restoration of soil properties in Ethiopian lowland conditions

Arid

DOI	10.1007/s42452-020-03538-9
	The effect of exclosures on restoration of soil properties in Ethiopian lowland conditions
	Abay, Kiros; Tewolde-Berhan, Sarah; Teka, Kassa
通讯作者	Abay, K
来源期刊	SN APPLIED SCIENCES
ISSN	2523-3963
EISSN	2523-3971
出版年	2020
卷号	2 期号:11
英文摘要	Land degradation is one of the environmental challenges in the semi-arid areas of Africa such as Ethiopia. To tackle this problem, exclosures have been established on degraded open grazing lands. However, there was paucity of research regarding their ecological merits, especially in the lowlands of Tigray, Northern Ethiopia. Hence, this study was conducted to explore the effect of conversion of grazing lands to an exclosure on soil chemical properties and soil organic carbon stock (SOC stock) in Tselemti district, which was taken as testing site to represent the lowlands of Tigray. A total of 36 plots (18 from grazing land and 18 from exclosure), measuring 20 nn x 20 m, were established along 6 transects for soil sampling. From each plot, 1 composite soil sample for analyses of total nitrogen (TN), available phosphorus (avP), cation exchange capacity (CEC), electrical conductivity (EC), available potassium (avK), soil pH and soil organic carbon content (SOC) and 1 undisturbed soil sample for soil bulk density (BD) determination was collected from a depth of 0-30 cm. Hence, a total of 72 soil samples (36 for nutrients and 36 for bulk density analysis) were analyzed in the laboratory. Paired samples t test statistics at 5% level of significance using SPSS version 20 was used to compare the land uses. Pearson correlation test was also used to analyze the relationship among the different soil properties. The study showed that the conversion of open grazing land to an exclosure enhanced most of the soil properties except soil pH, avP and EC. The results revealed that the exclosure had significantly (p < 0.05) higher SOC (1.89 +/- 0.1 and 1.29 +/- 0.06) and SOC stock (73.61 +/- 4.9 and 45.64 +/- 2.57 Mg ha(-1)), indicating an improvement by 46.5 and 61.3% as compared to the grazing land. Similarly, it enhanced CEC, TN and avK level significantly (p < 0.05) by 16.8, 45.5 and 34%, respectively. It can be concluded that conversion of open grazing lands to exclosures is a viable option to restore degraded soils. For this reason, additional exclosures have to be established on previously degraded open grazing lands in the area and areas with similar biophysical setup.
英文关键词	Lowlands Nutrients Restoration Soil organic carbon stock
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000576686300006
WOS关键词	TERM GRAZING EXCLUSION ; CARBON STOCKS ; SPECIES-DIVERSITY ; ORGANIC-CARBON ; GRASSLAND ; MANAGEMENT ; NUTRIENTS ; ECOSYSTEM ; IMPACT ; TIBET
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334646
作者单位	[Abay, Kiros] Tigray Agr Res Inst, Shire Maitsebri Agr Res Ctr, Shire Endaselassie, Ethiopia; [Tewolde-Berhan, Sarah] Mekelle Univ, Dept Food Sci & Postharvest Technol, Mekelle, Ethiopia; [Teka, Kassa] Mekelle Univ, Dept Land Resources Management & Environm Protect, Mekelle, Ethiopia
推荐引用方式 GB/T 7714	Abay, Kiros,Tewolde-Berhan, Sarah,Teka, Kassa. The effect of exclosures on restoration of soil properties in Ethiopian lowland conditions[J],2020,2(11).
APA	Abay, Kiros,Tewolde-Berhan, Sarah,&Teka, Kassa.(2020).The effect of exclosures on restoration of soil properties in Ethiopian lowland conditions.SN APPLIED SCIENCES,2(11).
MLA	Abay, Kiros,et al."The effect of exclosures on restoration of soil properties in Ethiopian lowland conditions".SN APPLIED SCIENCES 2.11(2020).