نتایج جستجو برای: abandoned land

تعداد نتایج: 126474  

For an optimum use of natural resources in the sustainable development trend, there is a need to identify ecological resources in the shortest period of time and minimum possible cost. In this article, we aimed Management ecosystem by Assessment of plant covers changes at Taleghan Township in a twenty year period. Percentage of landscape and number of patch were among the metrics that were calc...

2004
Abigail M. York Darla K. Munroe

The impact of growth management policy through zoning ordinances on land-use and -cover change is a topic of increasing interest, especially with regard to urban sprawl and forest and agricultural land preservation. As urban and residential land use is quickly replacing extractive land use in southern Indiana, implementation of growth management policy has become a topic of great debate. This a...

2009
G. Bonanomi G. BONANOMI S. CAPORASO M. ALLEGREZZA

Semi-natural calcareous grasslands are of great interest in conservation because of their high species richness, but presently they are threatened by both land abandonment and nitrogen eutrophication. The paper reports on a three-year field experiment conducted in a species-rich Mediterranean grassland to study the effects of nitrogen application coupled with removal of plant litter and artific...

2009

More than 60% of British agricultural land is grassland and much of it, particularly the hills and uplands, is unsuitable for other crops. Semi-permanent rough grazing and improved grasslands play an important role in locking up carbon dioxide and regulating the flow of rain into water courses. Without livestock farming, those natural resources would be abandoned and the landscape would soon ch...

Journal: :اکو هیدرولوژی 0
علی اکبر داودی راد دانشجوی مقطع دکتری رشتۀ علوم و مهندسی آبخیزداری، دانشکدۀ منابع طبیعی، دانشگاه تربیت مدرس سید حمیدرضا صادقی استاد، گروه مهندسی آبخیزداری، دانشکدۀ منابع طبیعی، دانشگاه تربیت مدرس امیر سعدالدین دانشیار، دانشکدۀ مرتع و آبخیزداری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

the present study aimed to monitor the land use change in the shazand watershed with different development policies using land use net changes and exchanges in land change modeller (lcm) forperiod of1973to2014and in sub-watersheds scale. in the study period, rangeland area reduced about 380 km2 and rainfed and irrigation farm lands increased successively 100 and 150 km2 in the first and the sec...

Journal: :Journal of environmental quality 2003
Jason Stewart Jeff Skousen

The Deckers Creek watershed in northern West Virginia (USA), containing a land area of 166 km2 (63 mi2), has a long history of industrial development and attendant environmental abuses from both land and water pollution practices. The water in Deckers Creek was sampled in 1974 at 29 locations along the main stem and resampled in 1999-2000 to determine water quality changes over this 25-year per...

2006
X. Zhan L. Li W. Cheng

The landscapes of Inner Mongolia are widely known for the vast Stipa krylovii steppes. However, overgrazing and other improper land uses have extensively degraded the Stipa krylovii steppe ecosystem in recent decades. Knowledge about the soil seed banks and the remaining vegetation in these damaged ecosystems is crucial for guiding the restoration efforts. Using a germination method, this study...

2016
Chao Wang Qiong Gao Xian Wang Mei Yu

Uncovering magnitude, trend, and spatial pattern of land cover/land use changes (LCLUC) is crucial for understanding mechanisms of LCLUC and assisting land use planning and conservation. China has been undergoing unprecedented economic growth, massive rural-to-urban migration, and large-scale policy-driven ecological restoration, and therefore encountering enormous LCLUC in recent decades. Howe...

Journal: :International journal of environmental research and public health 2016
Liping Zhang Shiwen Zhang Yajie Huang Meng Cao Yuanfang Huang Hongyan Zhang

Understanding abandoned mine land (AML) changes during land reclamation is crucial for reusing damaged land resources and formulating sound ecological restoration policies. This study combines the linear programming (LP) model and the CLUE-S model to simulate land-use dynamics in the Mentougou District (Beijing, China) from 2007 to 2020 under three reclamation scenarios, that is, the planning s...

2006
Sandra Molina Colón Ariel E. Lugo

We studied the ecological characteristics of 45–50-yr-old subtropical dry forest stands in Puerto Rico that were growing on sites that had been deforested and used intensively for up to 128 yr. The study took place in the Guánica Commonwealth Forest. Our objective was to assess the long-term effects of previous land use on this forest—i.e., its species composition, structure, and functioning. P...

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