نتایج جستجو برای: farmland features

تعداد نتایج: 526998  

2013
H. H. Zhang Y. N. Zeng X. B. Jin

Farmland conversion, i.e. conversion of farmland into non-agricultural construction land, is an unavoidable trend in global economic development(Fazal 2001; Tan et al. 2005; Bugri 2008). In China, which is relatively short of farmland resources and yet in the phase of accelerating urbanization, conversion of farmland is closely related to national food security, ecological security as well as s...

2013
Zhi Li WenZhao Liu FenLi Zheng

A series of soil conservation measures have been carried out to reduce soil loss on the Loess Plateau of China since 1950s, and the biologic measures were implemented according to topographic factors such as slope and elevation; therefore, the changes in topographic factors of land use can indicate the effects of the biologic measures. The objectives of this study were to (i) analyze the land u...

2015
Qiong Wang Wenjie Wang Xingyuan He Wentian Zhang Kaishan Song Shijie Han Daniel Cullen

The glycoprotein known as glomalin-related soil protein (GRSP) is abundantly produced on the hyphae and spores of arbuscular mycorrhizal fungi (AMF) in soil and roots. Few studies have focused on its amount, composition and associations with soil properties and possible land-use influences, although the data hints at soil rehabilitation. By choosing a primary forest soil as a non-degraded refer...

Journal: :journal of agricultural science and technology 2014
v. h. duran zuazo c. r. rodriguez pleguezuelo s. cuadros tavira j. r. francia martínez

in agroforestry landscapes, land use, and the associated management practices exert strong impacts upon soil organic carbon stocks. data on the soil organic carbon were collected for different land-use types within a small watershed, el salado, located in lanjarón (se spain). eight land-use types namely: farmland planted in olive, almond, and cereals; forest with pinus halepensis mill. and pinu...

2012
Zhenqi Hu

Abstract: The extraction of underground ore body inevitably causes a large amount of land subsidence. Current reclamation technologies in China mainly focus on stable subsided land. Therefore, a new technology for reclaiming unstable subsiding land is being studied for restoring farmland as much as possible based on a case study in Northern Anhui, China. In consideration of the mining plan, sub...

2010
Michael Schaub Nicolas Martinez Aline Tagmann-Ioset Nadja Weisshaupt Melanie L. Maurer Thomas S. Reichlin Fitsum Abadi Niklaus Zbinden Lukas Jenni Raphaël Arlettaz

Conceived to combat widescale biodiversity erosion in farmland, agri-environment schemes have largely failed to deliver their promises despite massive financial support. While several common species have shown to react positively to existing measures, rare species have continued to decline in most European countries. Of particular concern is the status of insectivorous farmland birds that forag...

2013
Xiaoyu Yang Xiufeng Wang Lijuan Wang Min Wei

Vegetable crops such as cucumber and tomato are grown widely through the world using not only field but also protected farmland. Sensitive responses of many vegetables have been widely reported to environmental conditions such as light, air temperature, relative humility, and CO2 concentration in the past years. Among these environmental factors, light is considered to be the most important one...

1996
Barry Falk Bong-Soo Lee

This paper develops an approach to decompose farmland price time series into three components: permanent fundamental component, temporary fundamental component, and nonfundamental component. This decomposition is useful for studying the importance of fundamental versus nonfundamental factors in explaining farmland price behavior and the dynamic response of farmland price to shocks to each of th...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید