干旱区生态环境知识资源中心(Arid): Optimal management of cattle grazing in a seasonally dry tropical forest ecosystem under rainfall fluctuations

Arid

DOI	10.1016/j.jhydrol.2020.125102
	Optimal management of cattle grazing in a seasonally dry tropical forest ecosystem under rainfall fluctuations
	Souza, Rodolfo; Hartzell, Samantha; Feng, Xue; Dantas Antonino, Antonio Celso; de Souza, Eduardo Soares; Cezar Menezes, Romulo Simoes; Porporato, Amilcare
通讯作者	Souza, R
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2020
卷号	588
英文摘要	Climate change will likely trigger shifts in rainfall regimes that may intensify water scarcity in semi-arid regions. In the semi-arid region of Brazil, the seasonally dry ecosystem is the primary source of forage for livestock. Because the correct stocking rate of livestock (animals per area) is not well understood, overgrazing tends to advance rangeland degradation in this ecosystem. This implies that the region may become even more vulnerable under changing rainfall regimes, which in turn may exacerbate livestock and food insecurity. We developed a coupled soil water balance, vegetation, and cattle biomass model to illustrate the impacts of rainfall seasonality on the dynamics of vegetation and animal growth. The outcomes were simulated by considering different stocking rates and the timing of animal placement and removal from the rangeland. A more pronounced reduction in vegetation biomass was found in grazed vs. non-grazed paddocks. Under strongly seasonal rainfall patterns, the maximum animal weight gain decreases with average rainfall inter-arrival time and increases with total annual rainfall. Thus, a forecast of dry spells could benefit farmers in planning grazing management strategies. Our model can be used to test different management scenarios and give feedback for local herders, and to guide future experiments to reduce the time and cost of acquiring data.
英文关键词	Ecohydrology Soil moisture Caatinga Semi-arid region
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000568826300061
WOS关键词	SOIL-MOISTURE ; SEMIARID REGION ; WATER-BALANCE ; CAATINGA ; GRASSLANDS ; PATTERNS ; IMPACTS
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326249
作者单位	[Souza, Rodolfo] Univ Sao Paulo, Inst Astron Geophys & Atmospher Sci, Sao Paulo, Brazil; [Souza, Rodolfo; Dantas Antonino, Antonio Celso; de Souza, Eduardo Soares; Cezar Menezes, Romulo Simoes] Natl Observ Water & Carbon Dynam Caatinga Biome, Recife, PE, Brazil; [Hartzell, Samantha; Porporato, Amilcare] Princeton Univ, Princeton, NJ 08544 USA; [Feng, Xue] Univ Minnesota, Minneapolis, MN USA; [Dantas Antonino, Antonio Celso; Cezar Menezes, Romulo Simoes] Univ Fed Pernambuco, Recife, PE, Brazil; [de Souza, Eduardo Soares] Univ Fed Rural Pernambuco, Serra Talhada, Brazil
推荐引用方式 GB/T 7714	Souza, Rodolfo,Hartzell, Samantha,Feng, Xue,et al. Optimal management of cattle grazing in a seasonally dry tropical forest ecosystem under rainfall fluctuations[J],2020,588.
APA	Souza, Rodolfo.,Hartzell, Samantha.,Feng, Xue.,Dantas Antonino, Antonio Celso.,de Souza, Eduardo Soares.,...&Porporato, Amilcare.(2020).Optimal management of cattle grazing in a seasonally dry tropical forest ecosystem under rainfall fluctuations.JOURNAL OF HYDROLOGY,588.
MLA	Souza, Rodolfo,et al."Optimal management of cattle grazing in a seasonally dry tropical forest ecosystem under rainfall fluctuations".JOURNAL OF HYDROLOGY 588(2020).