نتایج جستجو برای: farmland

تعداد نتایج: 3841  

Journal: :Environmental management 2009
Miao Liu Yuanman Hu Yu Chang Xinyuan He Wei Zhang

Scientists have aimed at exploring land use and land cover change (LUCC) and modeling future landscape pattern in order to improve our understanding of the causes and consequences of these phenomena. This study addresses LUCC in the upper reaches of Minjiang River, China, from 1974 to 2000. Based on remotely sensed images, LUCC and landscape pattern change were assessed using cross-tabulation a...

2015
Dayong Liu Chunjiang Zhao Huarui Wu Feifei Li

Solar-powered nodes employed in farmland wireless sensor network have energy advantages but at the same time have the problem of high cost. Wireless sensor network employs both solar-powered nodes and battery powered nodes which can reduce cost and prolong network lifetime. This paper presents an algorithm based on LEACH to study the clustering process of farmland environment monitoring sensor ...

2005
Robert J. Johnston Jon G. Sutinen

Differential property tax policy for farmland is often set under conditions of uncertainty and limited information regarding landowners’ objective functions. This study examines optimal differential tax policy for a parcel of agricultural land facing uncertain development, identifying instances in which common farmland taxation policies may be non-optimal. Optimal tax rates are characterized gi...

2008
Stephen Hynes Nick Hanley

This paper considers farmers willingness to pay (WTP) to conserve an endangered Irish farmland bird, the Corncrake (Crex crex). An Irish National Farm Survey (NFS) is used to produce individual farm-level WTP estimates for the year 2006. These figures are then aggregated to obtain a total value figure for the farming community of Corncrake conservation in Ireland. We focus on the willingness to...

2006
Robert A. ROBINSON Gavin M. SIRIWARDENA Humphrey Q. P. CRICK

Although the starling has the capacity for explosive population growth, its population in Britain has declined by two-thirds over the last 40 years. Here we summarize a major study (Crick et al., 2002) which investigates the reasons for this. The starling is commonest in urban and farmland habitats, though density in the latter is much lower; the total breeding population is estimated at 9 mill...

2001
Nicolai V. Kuminoff Daniel A. Sumner Alvin D. Sokolow

This paper uses an analytical and econometric approach to analyze the farmland conversion process, including the effects of population growth, real estate markets, the agricultural-urban edge, and farm returns. We use a unique county-level dataset on farmland conversion for California that tracks conversions between agricultural, urban and other land uses. Paper prepared for the annual meeting ...

1996
J. H. Atkinson

T he Purdue land values survey revealed a statewide increase of 3.2% in the value of average-quality bare tillable land in the year ending in June 1992, about double the tiny increase of 1991-92. The USDA estimate for the year ending January 1 was 5%. The Federal Reserve Bank of Chicago survey of bankers indicated a 4% increase for the year ending March 31 in “good” farmland in the northern two...

ژورنال: علوم آب و خاک 2007
احمد جلالیان, , عباس پاشایی, , حسین خادمی, , فرشاد کیانی, ,

To investigate the degree of forest degradation and the effect of land use change on selected soil quality attributes in loess-derived landforms, samples were taken from different land uses including forest, rangeland, degradated rangeland and farmland in Pasang watershed located in the Galikesh area of Golestan province (37°16'N, 55°30'E). The annual average temperature and mean precipitation ...

Journal: :Sustainability 2023

Low-carbon green utilization of farmland, which is a significant driver high-quality development agriculture, has aroused wide concern in the recent years. In practice, expansion digital financial inclusion seems to provide valuable opportunities for low-carbon farmland. these conditions, using Chinese provincial panel data from 2011 2020 and structural equation model (SEM) analysis STATA 16.0,...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید