نتایج جستجو برای: cultivated land

تعداد نتایج: 139197  

2017
Shuhan Liu Dongyan Wang Hong Li Wenbo Li Qing Wang

Ecological land is a land use category provided with considerable ecological value and a vital indicator reflecting regional eco-environmental quality. However, it has experienced severe fragmentation during the rapid urbanization in China which strongly threatened the regional ecological security, land use pattern and human living environment. Therefore, analysis of spatiotemporal change of ec...

ژورنال: علوم آب و خاک 2012
فرهاد خرمالی, , محمد عجمی, ,

In order to study land degradation from the soil genesis and micromorphological perspective, ten soil profiles were dug and described on five slope positions in both forest and deforested cultivated land. The soil samples were taken from all horizons for physico-chemical analysis and micromorphological studies. Forest soils had a well developed argillic and calcic horizons and also mollic epipe...

2014
Qin Jin Xiangzheng Deng Zhan Wang Chenchen Shi Xing Li Weidong Huang

Based on the computable general equilibrium (CGE) modelling method, this research analyzes the relationship between industrial structure and land use structure in China. The results show that our model is feasible, and the simulation results are of a certain stability. Under the scenario analysis and projection of the relationship between the industrial structure and land use structure of the t...

2013
Innocent Nzeyimana Alfred E. Hartemink Jan de Graaff

Agriculture is the cornerstone of Rwanda’s economy. The authors review how the sector has changed and specifically what soil management practices are now being implemented to enhance coffee production. Coffee covers around 2.3% of total cultivated arable land, and is grown mainly by smallholder farmers on plots of less than one hectare. Rwanda produces high-quality speciality or fully washed co...

Journal: :Sustainability 2023

Digital financial inclusion (DFI), characterized by digitalization and inclusiveness, has generally been recognized as a significant promoter of efficiency, effectiveness, sustainability agricultural production. Simultaneously, cultivated land green utilization efficiency (CLGUE), which is the guarantees food security, social stability environmental protection, attracted increasing attention in...

Journal: :Land 2023

Because the relationship between cultivated land and surrounding types is not taken into account, there existed a deviation in assessment of landscape ecological security. A novel methodology assessing security presented this study, grid scale adjusted index by disturbance environment index. This method was applied Xintai City, Shandong Province. The results demonstrate that (1) 1985 2015, cons...

Journal: :Remote Sensing 2016
Samantha K. Dawson Adrian Fisher Richard Lucas David K. Hutchinson Peter Berney David Keith Jane A. Catford Richard T. Kingsford

Wetlands worldwide are becoming increasingly degraded, and this has motivated many attempts to manage and restore wetland ecosystems. Restoration actions require a large resource investment, so it is critical to measure the outcomes of these management actions. We evaluated the restoration of floodplain wetland vegetation across a chronosequence of land uses, using remote sensing analyses. We c...

2015
Jie Hu Chao Wang

Following the implementation of the Green for Grain Project in 2000 in Guyuan, China, the decrease in cultivated land and subsequent increase in forest and grassland pose substantial challenges for the supply of biological products. Whether the current biologically productive land-use patterns in Guyuan satisfy the biological product requirements for local people is an urgent problem. In this s...

Behnaz RaheliNamin, Behrooz Mohseni,

Background & Aims of the Study: Groundwater resources are a crucial component of the ecosystem. Management and cleanup of contamination from groundwater resources requires a long term strategy and a huge amount of investments. Artificial neural networks (ANN) and Geographic Information System (GIS) can be useful in determining management strategies. To protect these valuable resourc...

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