Earth Science Informatics, Год журнала: 2022, Номер 15(3), С. 1385 - 1394
Опубликована: Фев. 16, 2022
Язык: Английский
Frontiers in Environmental Science, Год журнала: 2025, Номер 12
Опубликована: Янв. 6, 2025
Integrating territorial spatial planning with the autocorrelation of cultivated land quality indices can enhance optimization farmland preservation and food security. This study combines “three lines” demarcation—basic protection line, ecological urban development boundary—with to propose an improved model for optimizing layout. We employed a four-dimensional evaluation system that includes natural index, utilization management environment economic value index. Using Liuhe District as case study, we applied optimal combination weighting method assessment conducted analysis simulate indices’ relationships at plot scale. The results indicate that: (1) index is high in west low east, while other are center margins. (2) Each exhibits positive geographic autocorrelation, Moran’s I values 0.89, 0.67, 0.65, 0.83, respectively. (3) scheme increased permanent basic by 123.15 hm² grade 1.45, classifying into four primary categories focused on development. zone has highest non-agricultural construction should be prohibited it. buffer zone, which poor locational advantage, ideal growth. environmental despite its quality, conservation. comprehensive adjustment address obstructions facilitate transition farmland.
Язык: Английский
Процитировано
1
International Journal of Environmental Research and Public Health, Год журнала: 2021, Номер 18(22), С. 11911 - 11911
Опубликована: Ноя. 12, 2021
Chemical fertilizers are important inputs in agricultural production. They not only increase crop yield but also bring many negative effects, such as non-point source pollution. Therefore, a scientific understanding of the regional differences chemical fertilizer application and its environmental risks is significance to promote China’s development. In this study, we analyzed spatiotemporal pattern intensity (CFAI) China since 2000, evaluated provincial CFAI, investigated internal mechanism behind them. The results showed that total amount from 2000 2019 presented trend increasing first then decreasing. 2019, CFAI eastern was generally higher than central western China, were spatially characterized by “high north low south”. Factors poor soil conditions, unreasonable farming structure backward fertilization methods main reasons for continuous application, while construction ecological civilization transformation society economy their decline. Finally, measures targeted fertilization, adjusting use fertilizers, improving replacing with organic proposed quantity reduction efficiency China.
Язык: Английский
Процитировано
44
Sustainable Cities and Society, Год журнала: 2022, Номер 86, С. 104131 - 104131
Опубликована: Авг. 21, 2022
Язык: Английский
Процитировано
33
Global Ecology and Conservation, Год журнала: 2022, Номер 36, С. e02115 - e02115
Опубликована: Апрель 4, 2022
Assessing cultivated land resource assets is a prerequisite for management and protection. Existing methods on the physical quantity usually ignore change in quality value lack unified standard framework. In this study, calorific was introduced to calculate an integrated accounting system with quantity, established based substitution market, income reduction, equivalent factor methods. Taking 14 cities Xinjiang as study area, quantities from 1990 2018 were calculated analyzed reveal characteristics of assets. The results showed that: (1) overall improved fluctuating growth trend, area increased by 58.89% 64.54%, respectively; (2) 2018, slow-to-fast increase total observed accompanied spatial distribution "high northwest low east". proportion social grew fast, increasing 64.02% 83.55%, average annual rate CNY 566.95 billion/yr; (3) during period, structure (social value: economic ecological value) changed 64.03:17.56:18.41–83.55:3.38:13.07. social, economic, per unit 11.74, 1.98, 5.94 times, respectively. proposed has advantages clear indicator meaning good data availability, which helpful achieve cross-regional cross-period comparison These findings provide reference scientific sustainable utilization resources similar oasis agricultural areas.
Язык: Английский
Процитировано
26
Remote Sensing, Год журнала: 2022, Номер 14(5), С. 1250 - 1250
Опубликована: Март 3, 2022
Scientifically revealing the spatiotemporal patterns of cultivated land quality (CLQ) is crucial for increasing food production and achieving United Nations Sustainable Development Goal (SDG) 2: Zero Hunger. Although studies on evaluation CLQ have been conducted, an effective system that suitable macro-regional scale has not yet developed. In this study, we first defined from four aspects: soil fertility, natural conditions, construction level, productivity. Then, eight indicators were selected by integrating multi-source remote sensing data to create a new system. We assessed in Guangzhou, China, 2010 2018. addition, identified main factors affecting improvement CLQ. The results showed continuously improved Guangzhou area high-quality increased 13.7%, which was mainly distributed traditional agricultural areas northern eastern regions Guangzhou. medium- low-quality decreased 8.1% 5.6%, respectively, scattered throughout whole study area. fertility high productivity capacity obstacle affected Simultaneously, degree stable gradually during period. Therefore, targeted measures could be put forward applying biofertilizers, strengthening crop management constructing well-facilitated farmland. proposed particularly practical at scale, provided guidance decision makers improve promote security.
Язык: Английский
Процитировано
23
International Journal of Environmental Research and Public Health, Год журнала: 2022, Номер 19(13), С. 8210 - 8210
Опубликована: Июль 5, 2022
Food security is the foundation of development. We comprehensively characterized spatiotemporal patterns non-grain production (NGP) areas in China and elucidated underlying factors driving NGP. Our objectives were to map NGP on cultivated land (NGPCL) China, quantify its patterns, investigate spatial differentiation, provide a scientific basis for developing management policies reference points protecting other countries. mapped NGPCL from 2000 2018 using remote sensing geographic information system data. The evolution rate (NGPR) was also investigated. dominant progression associated interactions identified detectors. From 2018, NGPR gradually decreased 63.02% 52.82%. high west low east, differentiation clustering statistically significant. Precipitation, temperature, altitude, soil carbon content affecting NGPR. interaction between these enhanced differentiation.
Язык: Английский
Процитировано
23
Land Use Policy, Год журнала: 2024, Номер 146, С. 107322 - 107322
Опубликована: Авг. 30, 2024
Язык: Английский
Процитировано
5
Land Degradation and Development, Год журнала: 2023, Номер 34(17), С. 5373 - 5388
Опубликована: Окт. 6, 2023
Abstract Systematic assessment of arable land use is a fundamental prerequisite to explore its sustainable development path. Agricultural infrastructure integrated with the tillage conditions and soil properties was used evaluate state regional potential for productivity. We propose combined weighting method integrating Delphi entropy weights consider both decision objectives indicator attributes. The proposed approach takes into account expertise data feature, making evaluating results more rational applicable. impacts large‐scale change urban distribution on agricultural were also explored develop differentiated conservation strategies. Our evaluation showed that 44% 48% in Heilongjiang Province, China, are excellent or good grades, respectively, meaning no only minor remediation measures needed achieve optimum conditions. deserves attention from management than properties, as 16% 24% area have same grades. combination subjective objective closer normal curve if expert used, which confirms our hypothesis new reasonable. newly weighted design index provide better understanding productivity areas promising application black worldwide. future rough growth strategy resources will result degradation posed risks ecological conservation. At provincial level (up 130 km), declines then rises fields move away cities, inflection point at 55 km. State‐owned farms mainly responsible this point, shift agents small farmers large capital, remote receiving investment. impact mechanisms urbanization should be deeper address challenges
Язык: Английский
Процитировано
11
Journal of Geographical Sciences, Год журнала: 2024, Номер 34(4), С. 745 - 762
Опубликована: Апрель 1, 2024
Язык: Английский
Процитировано
3
Agriculture, Год журнала: 2022, Номер 12(6), С. 860 - 860
Опубликована: Июнь 14, 2022
China has implemented strict policies for protecting cultivated land, and the Chinese government focused on non-grain production (NGP) of land. This study aimed to analyze spatial evolution law grain-producing land (GPCL) in between 2000 2018, explore mechanism GPCL, simulate characteristics GPCL 2036. We used Geographic Information System (GIS) a patch-generating land-use simulation model, new model that proposes expansion analysis strategy by improving previous rule-mining methods. China’s grain rate (GPrate) shows gradual upward trend (36.98%) 2018 (47.18%). The mutual conversion non-grain-producing (NGPCL) are primary transfer types. is driven climatic, economic, social factors, which population density most important factor. patches distributed densely populated, economically developed, warm humid plain areas. Further, results showed GPrate 2036 estimated be 41.39%, with transfer-in significantly exceeding amount transferred out. Our further evolution-associated research provide basis formulating scientific protection other countries.
Язык: Английский
Процитировано
15