عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLpq2430652119
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
The Impact of Climate Change on the Management and Regeneration of Parkland Trees in the Savannah Zones of Northern Nigeria
نام عام مواد
[Thesis]
نام نخستين پديدآور
Abdullahi, Ibrahim Ndaginna
نام ساير پديدآوران
Rayment, Mark
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Bangor University (United Kingdom)
تاریخ نشرو بخش و غیره
2020
مشخصات ظاهری
نام خاص و کميت اثر
256
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
Bangor University (United Kingdom)
امتياز متن
2020
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
In Northern Nigeria, the savannah parklands are mixed dryland agroecosystems having landscape productivity and deforestation challenge, induced by the changing climate and affecting sustainable livelihoods. The productivity of parkland is attributed to different factors such as erratic precipitation, drought and plant mortality. Here, the study predicts the impact of climate change on tree regeneration on parklands of three savannah agroecological zones (AEZs), namely the Sudan savannah (SS), Northern Guinea savannah (NGS) and Southern Guinea savannah (SGS) AEZs across a north-south transect using a multidisciplinary approach. The approach involves the employment of Random Forest model framework to predict the future shift in AEZs from the current climate using bioclimatic variables and climatic scenarios. Three random predicted locations within each studied AEZ identified as drought-threatened areas were selected for tree preference and identification study by analysing local farmer ethnobotanical knowledge of their favourite species, before tree identification and estimation of diversity and abundance of the current parkland species on farms in the respective local communities. The research further predicted the future distribution of selected important species using Maximum Entropy and assess the efficacy of simple propagation methods (cuttings and marcotting) on respondents' farms, after an extreme drought survival test in a greenhouse. The results showed that agroecological zones are getting warmer and drier southwards, replacing the current NGS and SGS with SS between 2050 and 2070, by up to 65%. Parkia biglobosa, Mangifera indica and Vitellaria paradoxa are the top-ranked species by 90% of the 92 respondents in the study and are the most abundant species on farmers' field with relative species dominance ranging from 19.61-42.64%. The strong relationship between species preference and abundance increases northwards. On the future distribution and improvement of parkland species to survive under stress conditions. Maximum entropy model predicted a north-eastern shift for future spatial species distribution of Parkia biglobosa and Vitellaria paradoxa under most extreme climate scenario. For tree species at jvenile stage to survive under 6 months drought regime, the research indicated that 9months old Parkia biglobosa seedling from SGS resisted more than other species at different ages from different AEZ species. On local adaptation strategy to improve parklands survival, there were up to 40% and 38% success rate of vegetative propagation of Anarcadium occidentale using cuttings and marcotting, respectively.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
African studies
موضوع مستند نشده
Climate change
موضوع مستند نشده
Wildlife management
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Abdullahi, Ibrahim Ndaginna
مستند نام اشخاص تاييد نشده
Rayment, Mark
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
