نتایج جستجو برای: arable land

تعداد نتایج: 119576  

2012
Anna Bond Estes Tobias Kuemmerle Hadas Kushnir Volker Christian Radeloff Herman Henry Shugart

The growth of human populations around protected areas accelerates land conversion and isolation, negatively impacting biodiversity and ecosystem function, and can be exacerbated by immigration. It is often assumed that immigration around protected areas is driven by attraction in the form of economic benefits, but in many cases, people may be pushed from their areas of origin toward protected ...

2016
Chiming Gu Yi Liu Ibrahim Mohamed Runhua Zhang Xiao Wang Xinxin Nie Min Jiang Margot Brooks Fang Chen Zhiguo Li

Mulching management has been used in many places all over the world to improve agricultural sustainability. However, the cycling of carbon in the soil under applications of mulch on sloping arable land is not yet fully understood. A four-year field experiment was carried out in Xiaofuling watershed of Danjiangkou reservoir in China. The object was to evaluate the effects of the application of s...

Journal: :پژوهشنامه تاریخ تمدن اسلامی 0
سیّد جمال موسوی دانشگاه تهران اصغر قائدان دانشگاه تهران قدریه تاج بخش دانشجوی دکتری دانشگاه تهران

this paper has investigated mamluks egypt`s militarism influence on rook of hesam al-din & nasser qalawoon. the authors have concluded in this study that the generalissimo and military officers due to the monopoly on their extensive apanage areas and abundant revenues could limit the power of the sultan and even to the throne have greed sometimes; because much of the land, i.e 20 carats of 24 c...

Journal: :Remote Sensing 2015
Natalia Kolecka Jacek Kozak Dominik Kaim Monika Dobosz Christian Ginzler Achilleas Psomas

Secondary forest succession on abandoned agricultural land has played a significant role in land cover changes in Europe over the past several decades. However, it is difficult to quantify over large areas. In this paper, we present a conceptual framework for mapping forest succession patterns using vegetation structure information derived from LiDAR data supported by national topographic vecto...

2017

In this study we apply an evidence-based approach to model demographic fluctuations and their corresponding impact on land use during the Roman and early-medieval periods in the Rhine-Meuse delta in the present-day Netherlands. Past population numbers are reconstructed based on Roman and early-medieval settlement patterns. Corresponding impacts of these demographic fluctuations on potential lan...

2008
Xiaochen Zou Ming Luo Wei Su Daoliang Li Yijun Jiang Zhengshan Ju Jun Wang

Land consolidation is the basis of making the land arrangement special plan, meanwhile, land consolidation sub area, ascertaining land consolidation item and setting land consolidation indices are mainly depended on land consolidation potentiality, so it is necessary to do this research. As the most important pattern of land consolidation, potential evaluation of cultivated land consolidation i...

2013
Tobias Plieninger Mirijam Gaertner Cang Hui Lynn Huntsinger

Background: Obscured by the more prevalent discussion of intensification and expansion of agricultural land, the impacts of the abandonment of many grasslands and croplands of the world in recent decades have received limited attention in the literature. Land abandonment is a common phenomenon in the Mediterranean Basin, a global biodiversity hotspot, but little is known about the impacts of th...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید