Climate Change: Matching Growing Season Length with Maize Crop Varietal Life Cycles in Semi-Arid Regions of Zimbabwe

Mubvuma, Michael Ticharwa

doi:10.15580/gjas.2013.3.100713891

Cited by 11 publications

(5 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was due to the early start and later end of the growing season. This is in agreement with Mubvuma (2013) who showed that there was a strong correlation between the onset of the rainy season and the LGS. He showed that the LGS increases with the earlier onset of the rainy season.…”

Section: Resultssupporting

confidence: 93%

Length of the growing season for dry rainfed farming under Monsoon climate in Gedarif, Sudan

Yousif¹,

Khatir²,

El-Hag³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

Reliable information on the starting and ending of growing season as well as its length will greatly assist in appropriate planning for rainfed agriculture farming practices. The objective of this study is to determine the start, end and length of growing season, based on dependable rainfall during wet (20%), normal (50%) and dry (80%) years, which were retrieved from historical rainfall records analysis of seven stations in Gedarif state for the period 1985 to 2014. The seven studied stations were categorized into two groups according to the total seasonal rainfall. During wet years, Group I had about 900 mm/year and Group II about 700-790 mm/year. In normal years, Group I had about 660-700 mm/year and Group II had 515-570 mm/year. During dry years, Group I had 490-550 mm/year and Group II had 350-425 mm/year. The results showed consistent trend of starting dates of the growing seasons; regardless of the high seasonal variability and variation in amount and distribution of rainfall among the stations and seasons. Similar results were obtained using the MODIS Enhanced Vegetation Index (EVI) for three different years representing different probability levels (2013, dry; 2000, Normal; 2007, wet). Groups I and II in normal and wet years had 70 to 90% of the total annual rainfall during the growing season. In dry years, Group I had 70 to 80% of the total rainfall during the growing season, while Group II had only 50 to 65%. The two groups have indicated different seasonal characteristics (start of growth season, end of growth season and length of growth season) in the dry, normal and wet years. Length of the growth season increases with early start of the season and in wetter years.

show abstract

Section: Resultssupporting

confidence: 93%

Length of the growing season for dry rainfed farming under Monsoon climate in Gedarif, Sudan

Yousif¹,

Khatir²,

El-Hag³

et al. 2018

Afr. J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…Furthermore, farming seasons run short and rainfall is no longer effective, and its period of onset is late November to early December. The results also con rm the ndings of Mubvuma [40] that short farming seasons are characterized by droughts in the start and middle of the seasons, making rain-fed agriculture to be di cult. In addition, this concurs with Chikodzi et al [44], who observed that the catchment is no longer viable for livestock production due to the increase in aridity.…”

Section: Resultssupporting

confidence: 81%

An Assessment of Climate Change Response Strategies In The Water Sector In Mutirikwi Sub-Catchment, Masvingo, Zimbabwe

Ziti¹

2020

Preprint

View full text Add to dashboard Cite

The water sector is at the center of climate change impacts matrix. The objective of this study was to determine the sustainability of the response strategies in the water sector in the Mutirikwi sub-catchment in Masvingo. The study obtained its data form surveys recorded meteorological data from the Zimbabwe Meteorological Services Department’s four weather stations in the catchment, namely, Makoholi, Masvingo Airport, Buffalo Range and Zaka. Time series analysis of temperature data from 1952 to 2002 and rainfall pattern from 1972 to 2010 was done using the XL STAT software. The results show that the seasonal average rainfall decrease from 1972 to 2010 was not statistically significant (p=0.635, α=0.05), but the decline bears a significant environmental impact. The seasonal maximum temperature increase was statistically significant (p=0.000, α=0.05), and the seasonal minimum temperature increase was not significant (p=0.226, α=0.05). Vulnerability varies spatially within urban areas and between urban and rural. Vulnerability is determined by social status and aggravated by management issues. Borehole use has increased and water harvesting, water reuse and water transfers are the main adaptive responses used in the catchment. The study concludes that current response strategies are not sustainable. There is a need to design area-specific response mechanisms that are all inclusive to ensure that communities are able to adapt to climate change with regard to water resources.

show abstract

“…Table 1 shows that the regions with longer WRS experienced more rainy days (i.e., correlation coefficient 0.9627) and also received a significant share of AP in the RS. Many experts in the field (e.g., Kanemasu et al, 1990; Mubvuma, 2013; Mugalavai et al, 2008; Sivakumar, 1988) also believed that in general, earlier ORS leads to a longer RS.…”

Section: Resultsmentioning

confidence: 99%

Identification of Iran's rainy season and its relation to some spatial features

Asakereh

Masoodian

Tarkarani

2023

Intl Journal of Climatology

View full text Add to dashboard Cite

Identifying the rainy season (RS) is significantly important from the meteorological, hydrological and socio‐economic points of view. In the current study, the climatology of Iran's RS was identified based on developing a definition by mainly relying on examining daily rainfall observations from 2188 stations in the period of January 1, 1971–December 31, 2015 (45 years). Accordingly, it was revealed that at most two RSs could be distinguished in Iran; and there was a widespread rainy season (WRS) covering the entire country in three consecutive months (phases). In the northwest of the country, the Alborz Mountain chains, and in the southeast of Iran, the RS was mainly interrupted by a dry season. Therefore, two RSs occurred in these areas (widespread and regional rainy seasons [RRS]). The four withdrawal phases of the RS were relatively different on the regional scales. However, they generally showed a relation with latitudes. Unlike the onset date of phases of the RS, these phases did not occur at the same intervals. The diversity of spatial factors in Iran (including geographic coordination, topographic features and sea surface temperature of surrounding seas) caused the spatial diversity of the timing of the RS. Consequently, linear relationships could not illustrate the nature of the spatial pattern of this diversity. The linear spatial relationship was statistically significant only for the onset date of the RS. The regression model used in the present study showed that despite the effect of local factors on the onset date of the RS, the major regional differences could be attributed to systems and mechanisms that probably affected the onset date of the RS from outside of the country.

show abstract

Climate Change: Matching Growing Season Length with Maize Crop Varietal Life Cycles in Semi-Arid Regions of Zimbabwe

Cited by 11 publications

References 19 publications

Length of the growing season for dry rainfed farming under Monsoon climate in Gedarif, Sudan

Length of the growing season for dry rainfed farming under Monsoon climate in Gedarif, Sudan

An Assessment of Climate Change Response Strategies In The Water Sector In Mutirikwi Sub-Catchment, Masvingo, Zimbabwe

Identification of Iran's rainy season and its relation to some spatial features

Contact Info

Product

Resources

About