نتایج جستجو برای: lands areas

تعداد نتایج: 409535  

Ali Mohammadi Torkashvand Shahryar Sobhe Zahedi

An important factor in sustainable agriculture and economic management is to calculate areas under different crops that the inputs of agriculture connect to this topic. Planning of agricultural mechanization, fertilizer and pesticide requirements, pests and diseases control, estimates of agricultural production, income and tax and financial planning, all linked to the cultivated areas and estim...

2013
Natalie E. Clark Elizabeth H. Boakes Philip J. K. McGowan Georgina M. Mace Richard A. Fuller

Habitat loss imperils species both locally and globally, so protection of intact habitat is critical for slowing the rate of biodiversity decline. Globally, more than 150,000 protected areas have been designated with a goal of protecting species and ecosystems, but whether they can continue to achieve this goal as human impacts escalate is unknown. Here we show that in South Asia, one of the wo...

Journal: :The Journal of the Florida Medical Association 1991
J N Brouillette

Executive summary: We scrutinized peer-reviewed literature, technical books, and key reports in order to detect any evidence for a differential ability between public and public lands to protect imperiled species in the United States. Limitations in data availability and/or in study scale limited our comparison mostly to certain contrasts of federal public versus mostly private lands. At a nati...

2013
Nathalie Diagne Karthikeyan Arumugam Mariama Ngom Mathish Nambiar-Veetil Claudine Franche Krishna Kumar Narayanan Laurent Laplaze

Degraded lands are defined by soils that have lost primary productivity due to abiotic or biotic stresses. Among the abiotic stresses, drought, salinity, and heavy metals are the main threats in tropical areas. These stresses affect plant growth and reduce their productivity. Nitrogen-fixing plants such as actinorhizal species that are able to grow in poor and disturbed soils are widely planted...

2014
Wenguo Wang Xiaoyu Tang Qili Zhu Ke Pan Qichun Hu Mingxiong He Jiatang Li

Planting non-food bioenergy crops on marginal lands is an alternative bioenergy development solution in China. Native non-food bioenergy plants are also considered to be a wise choice to reduce the threat of invasive plants. In this study, the impacts of climate change (a consensus of IPCC scenarios A2a for 2080) on the potential distribution of nine non-food bioenergy plants native to China (v...

2013
K. Choudhary Mangal Singh U. Pillai

Thar region of Rajasthan, with its varied characteristics in culture, economies, the environment, governance and religion, is home to semi-urban and urban agriculture that seems to have originated in the Fertile Crescent of the homeland of the first farmers. Arid lands and deserts make up a large part of Rajasthan. Two-thirds of the state is desert or dry-lands. Half the state’s population is f...

2017
Bhagawat Rimal Lifu Zhang Dongjie Fu Ripu Kunwar Yongguang Zhai Andrew Millington Harini Nagendra Monika Kopecka Karen C. Seto

The exodus of people from rural areas to cities brings many detrimental environmental, social and cultural consequences. Monitoring spatiotemporal change by referencing the historical timeline or incidence has become an important way to analyze urbanization. This study has attempted to attain the cross-sectional analysis of Kathmandu valley that has been plagued by rampant urbanization over the...

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