Tropical soils and food security: the next 50 years.
نویسنده
چکیده
An appreciation of the dynamism of the links between soil resources and society provides a platform for examining food security over the next 50 years. Interventions to reverse declining trends in food security must recognize the variable resilience and sensitivity of major tropical soil types. In most agro-ecosystems, declining crop yield is exponentially related to loss of soil quality. For the majority smallholder (subsistence) farmers, investments to reverse degradation are primarily driven by private benefit, socially or financially. "Tragedy of the commons" scenarios can be averted by pragmatic local solutions that help farmers to help themselves.
منابع مشابه
Food Security Impacts of Increasing Energy Prices on Iranian Meat Market
In accordance with the Iranian government intention toward two step forward elimination of energy subsidies policy in coming years, we focus in this study on the extent by which the corresponding raising costs will be distributed across the livestock sector and how they affected food security. For this purpose, scenario of increasing energy prices and improving productivity at vertical and hor...
متن کاملMothers' Knowledge and Attitude toward Food Security in Complementary Feeding of 1-2 Year Old Children and its Relation with Demographic Indices
Background: Food insecurity denotes failure to provide adequate food. Knowledge and attitude play a key role in food security, which is of paramount importance in the first two years of life. Aim: This study aimed to evaluate mothers' knowledge and attitude towards food security in complementary feeding of 1-2 year-old offspring. Method: Using a cross-sectional study, 400 mothers of children 1-...
متن کاملStudy of Demographic Characteristics Related to Food Insecurity in Bushehr Iran Households with Infants Aged 1-2 years
Introduction: The nutritional dependency of infants on parents put them among the most vulnerable groups affected by food insecurity. The present study aimed to determine demographic characteristics related to food insecurity in Bushehrian households with infants aged 1-2 years. Methods: In a descriptive and analytical cross-sectional study, 400 mothers with infants aged 1-2 years were randomly...
متن کاملAnalyses of Labour Productivity among Small-Holder Cassava Farmers for Food Security and Empowerment in Central Madagascar
Labour productivity affects food security, but quantifying this relationship has been scarce with respect to empirical literature. The Central Madagascar dataset explores the influence of labour productivity and related variables on the food security status of cassava farmers. Drawing on both theory and empirical evidence, this paper argues that fundamental effects of links between labour produ...
متن کاملThe Relationship between the Awareness and Performance of Parents Regarding Food Security with Anthropometric Indices among School-age Children in Bushehr, Iran, during 2017
Parents' awareness and performance plays a key role in food safety of the children. This study aimed to investigate the relationship between parents’ awareness and performance regarding food security with anthropometric indices in school-age children from Bushehr, Iran, during 2017. Data in this descriptive-analytical study was collected from 402 parents using questionnaires on awareness and pe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Science
دوره 302 5649 شماره
صفحات -
تاریخ انتشار 2003