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An Empirical Study of Farmers' Perception and Behavior on Farmland Abandonment in Yunnan Province

In this study,using the PRA method,we conduct a questionnaire survey on 525 farmers in 10 typical villages in Yunnan Province,and study the farmers' farmland abandonment behavior as well as their perception. Studies have shown that there are some common problems for the villages in the inner suburbs and the villages in the outer suburbs such as small scale of rural land,dispersed plots and land fragmentation,and the   (本文共3页) 阅读全文>>

《Sciences in Cold and Arid Regions》2017年05期
Sciences in Cold and Arid Regions

Contamination and risk assessment of heavy metals in farmland soils of Baghrash County, Xinjiang,Northwest China

Soil pollution significantly reduces environmental quality.In this study,farmland soil samples were collected from 25 sites in Baghrash County,Northwest China;and the concentrations of eight heavy-metal elements(arsenic,As;cadmium,Cd;chromium,Cr;copper,Cu;manganese,Mn;nickel,Ni;lead,Pb;zinc,Zn)were determined by standard methods.The spatial distribution,contamination level,and ecological risk stature of heavy metals ...  (本文共9页) 阅读全文>>

《Journal of Geographical Sciences》2022年06期
Journal of Geographical Sciences

China's food security situation and key questions in the new era:A perspective of farmland protection

As the world's largest developing country, the ability of China's agricultural resource utilization to effectively support the current and future food security goals has been affected by a variety of factors(e.g., transformed supply channels, tightening international situation and frequent emergencies) in recent years and has attracted extensive attention from the academic community subject to multiple factors. This ...  (本文共19页) 阅读全文>>

《Journal of Forestry Research》2022年02期
Journal of Forestry Research

Selection of tree species by principal component analysis for abandoned farmland in southeastern Horqin Sandy Land,China

With changes in global climate and land use,the area of desertified farmland in southeastern Horqin Sandy Land(HSL) has increased in recent years,and farmlands are being abandoned.These abandoned farmlands(AFs) negatively impact the local ecology.Therefore,the aim of the present study was to select suitable trees and shrubs for those AFs to prevent and control the desertification tendency.In this study,three AFs were...  (本文共12页) 阅读全文>>

《Journal of Environmental Sciences》2021年03期
Journal of Environmental Sciences

A meta-analysis of heavy metals pollution in farmland and urban soils in China over the past 20 years

A total of 713 research papers about field monitor experiments of heavy metals in farmland and urban soils in China,published from 2000 to 2019,were obtained.A meta-analysis was conducted to evaluate the level of China's heavy metal pollution in soils,mainly focusing on eight heavy metals.It was found that the average concentrations of cadmium(Cd),lead(Pb),zinc(Zn),copper(Cu),mercury(Hg),chromium(Cr),nickel(Ni),and a...  (本文共10页) 阅读全文>>

《Journal of Geographical Sciences》2020年09期
Journal of Geographical Sciences

Exploring the spatio-temporal impacts of farmland reforestation on ecological connectivity using circuit theory:A case study in the agro-pastoral ecotone of North China

Farmland reforestation can contribute substantially to ecological restoration.Previous studies have extensively examined the ecological effects of farmland reforestation,but few of them have investigated the spatiotemporal responses of broad-scale landscape connectivity to reforestation.By using a typical agro-pastoral ecotone in northern China as a case study,we addressed this issue based on an innovative integratio...  (本文共17页) 阅读全文>>