Empirical Study on Utilization Benefit of Cultivated Land in Changsha

2014 ◽  
Vol 675-677 ◽  
pp. 1283-1287
Author(s):  
Jin Hua Tang ◽  
Ying Hui Li ◽  
Hui Li
Keyword(s):  
Empirical Study ◽  
Arable Land ◽  
Cultivated Land ◽  
Land Resources ◽  
Land Utilization ◽  
The Status

In order to realize the status of cultivated land resources in Changsha and to protect cultivated land resources. According to output benefit coefficient, consumption and return coefficient, population and substitution coefficient and intensive cultivation coefficient, cultivated land utilization benefits were quantitatively analyzed in Changsha from 2002 to 2011. The results showed that: the trend of the quantity of cultivated land was upward in general in Changsha. But the quality of cultivated land decreased. At the same time, the output benefit of arable land was good in 2004, 2006 and 2008, but the rest of year was lower, and the tendency was dropping. On this basis, the effectiveness of the strategies was improved to use of arable land resources.

The Study on Dynamic Change of Cultivated Land Resources and Driving Forces - A Study Case of Lixian County, Hebei Province

2014 ◽  
Vol 707 ◽  
pp. 232-236
Author(s):  
Can Zhang ◽  
Hui Chun Shi ◽  
Xia Xia Lv
Keyword(s):  
Driving Forces ◽  
Dynamic Change ◽  
Arable Land ◽  
Reduction Rate ◽  
Principal Component ◽  
Economic Factor ◽  
Cultivated Land ◽  
Land Resources ◽  
Annual Reduction ◽  
Statistical Yearbook

In this paper, Lixian County 2001-2010 dynamic changes of cultivated land resources were studied. Studies have shown that: the past 10 years the average annual reduction rate of 0.72% Lixian County arable land, and the reduction since 2002, much faster, In the spatial region, most dramatic change is more economically developed society Liwu Town, Dabaichi Town, Xinxing Town and Liushi Town. According to the statistical Yearbook 2001-2010 review, we select factor and use principal component analysis. The main driving factors of impacting Lixian County arable land resources change are economic factor, demographic factor and progress in agricultural technology factor.

Opening Closed Doors: Promoting IRB Transparency

2018 ◽  
Vol 46 (1) ◽  
pp. 145-158 ◽  
Author(s):  
Holly Fernandez Lynch
Keyword(s):  
Decision Making ◽  
Empirical Study ◽  
Human Subjects ◽  
Status Quo ◽  
Institutional Review Boards ◽  
The Public ◽  
Institutional Review ◽  
The Status ◽  
Research Efficiency

Institutional Review Boards (IRBs) have substantial power and authority over research with human subjects, and in turn, their decisions have substantial implications for those subjects, investigators, and the public at large. However, there is little transparency about IRB processes and decisions. This article provides the first comprehensive taxonomy of what transparency means (or could mean) for IRBs — answering the questions “to whom, about what, and by what mechanisms?” It also explains why the status quo of nontransparency is problematic, and presents arguments for greater transparency from the perspective of a variety of stakeholders. IRB transparency will make boards more accountable, improve the quality of their decision-making, facilitate consistency in board decisions, permit empirical study of IRBs, promote research efficiency, and advance trust in the research enterprise, among a variety of other benefits. Regulators should promote IRB transparency, IRBs themselves should commit to sharing as much information as they can within the confines of confidentiality requirements, and investigators can endeavor to take matters into their own hands by sharing IRB correspondence and IRB-approved protocols and consent materials.

Study on the Status of Grain Quality Security in Zhangjiagang City

2013 ◽  
Vol 864-867 ◽  
pp. 835-839
Author(s):  
Jie Zhang
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Grain Quality ◽  
Southern Region ◽  
Cultivated Land ◽  
Wheat Roots ◽  
The Third ◽  
Fourth Class ◽  
The Status

The quality of cultivated land use of Zhangjiagang was surveyed and analyzed in 2009. Overall distribution of cultivated land is mainly the second and the third class. The first and the fourth class are less. Spatial distribution of heavy metals content in soil, rice and wheat roots was analyzed by IDW interpolation. The results show that the contents of Hg, As, Se, Pb and Cu in soil have a certain differences in the spatial distribution. It mainly reflect that Hg pollute the soil in the southern region of Zhangjiagang. The contents of Hg, As, Se, Pb and Cu in rice, wheat roots also have a certain differences in the spatial distribution. It mainly reflect that Hg pollute the rice, wheat plants in the western and southern region of Zhangjiagang. The productivity of cultivated land has the overall downward trend from 1996 to 2009 in Zhangjiagang. There are 10818Kg/hm2 in 1996 and 8327 Kg/hm2 in 2009. The average decreased rate is 191.6Kg/hm2 every year.

scholarly journals Rational use of land resources: regional aspect

2021 ◽  
Vol 244 ◽  
pp. 03018
Author(s):  
Batrbek Kozyrev ◽  
Eleonora Tsoraeva ◽  
Al-Azawi Nagam ◽  
Alda Chibirova ◽  
Aslanbek Kozyrev
Keyword(s):  
Growth Rate ◽  
Statistical Analysis ◽  
Rate Increase ◽  
Arable Land ◽  
Land Resources ◽  
Rational Use ◽  
Regional Aspect ◽  
Effective Use

The analysis of the use of the land fund of the Krasnodar Territory and the analysis of the rational use of land resources were conducted, using the following coefficients: coefficient of arable land, coefficient of plowing of the territory, and territory development coefficient. The paper discusses the techniques and methods of statistical analysis of the distribution of the land fund by categories of land in the Krasnodar Territory for 2005-2019. Since the area of land by categories changes in dynamics, the indicators of the growth rate, increase, and average values of the series were used. This gives an understanding of how intensively the land areas of the Krasnodar Territory change. The analysis of the use of the land fund of the Krasnodar Territory is necessary in order to determine the possibilities for a more rational and effective use of it, as well as to preserve and improve the quality of the land. Therefore, it is relevant.

scholarly journals The temporal and spatial scales of arable land loss and its impact in Guangxi, China: A Commentary

2022 ◽  
Vol 9 (1) ◽  
pp. 76-84
Author(s):  
Haiying Feng ◽  
Victor Squires
Keyword(s):  
Spatial Scales ◽  
Arable Land ◽  
Mountainous Area ◽  
Cultivated Land ◽  
Land Resources ◽  
Land Loss ◽  
Policy Interventions ◽  
Geomorphic Features ◽  
Spatial Differences ◽  
Abandoned Cropland

Cropland abandonment because of rural depopulation or policy interventions has become a key issue in Chinese mountainous areas. One such region is the Guangxi Karst Mountainous Area (GKMA), a zone where more than 59% of total land area is hilly and arable land of a commercially viable size is almost non-existent. The rugged terrain and land fragmentation in upland karst areas result in the scarcity of land suitable for cultivation. Although depopulation and declining agriculture since 2000 within the GKMA have led to vast areas of abandoned cropland, the spatiotemporal distribution that underlies this pattern as well as its causes remain little understood. Geomorphic features also bring about differences in the distribution of settlements. Settlements with different degrees of distribution are accompanied by spatial differences in cultivated land resources, which lead to differences in the sufficiency of cultivated land resources. In this paper we provide an overview of the magnitude of the problem of arable land loss. settlements and analyze the spatial distribution and the spatial agglomeration of the cultivated land.

scholarly journals A multi-criteria evaluation system for arable land resource assessment

2020 ◽  
Vol 192 (2) ◽  
Author(s):  
Feipeng Li ◽  
Wei Liu ◽  
Zhibo Lu ◽  
Lingchen Mao ◽  
Yihua Xiao
Keyword(s):  
Evaluation System ◽  
Arable Land ◽  
Resource Assessment ◽  
Land Resource ◽  
Land Resources ◽  
Evaluation Systems ◽  
Multi Criteria Evaluation ◽  
Evaluation Scores ◽  
Index Evaluation

AbstractThis study proposed a multi-criteria evaluation system for arable land resources by combining the soil integrated fertility index (IFI) with a soil cleanliness index (based on heavy metals and metalloid content). A total of 16 typical arable land units in Chongming District, China, were evaluated using the proposed evaluation system based on 104 collected soil samples in 16 towns. The comprehensive soil evaluation scores of arable lands in 16 towns were in the range of 90.7 to 99.2 with a mean of 96.2, indicating that the arable land in all 16 towns was at the level of excellent (≥ 90.0). Lower cleanliness indices had a significant impact on the final evaluation score. In comparison with single-index evaluation systems (i.e., the IFI or soil cleanliness index), the proposed multi-criteria system better reflects the quality of the soil. In the practice of arable land requisition and subsidy policy, the proposed multi-criteria evaluation system not only encourages farmers to preserve arable lands during farming but also helps agricultural authorities make effective and reliable management decisions.

scholarly journals Integrating Remote Sensing and a Markov-FLUS Model to Simulate Future Land Use Changes in Hokkaido, Japan

2021 ◽  
Vol 13 (13) ◽  
pp. 2621
Author(s):  
Zhanzhuo Chen ◽  
Min Huang ◽  
Daoye Zhu ◽  
Orhan Altan
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Land Use Planning ◽  
Land Use Changes ◽  
Arable Land ◽  
Cultivated Land ◽  
Land Resources ◽  
Forest Protection ◽  
Land Protection ◽  
The Past

As the second largest island in Japan, Hokkaido provides precious land resources for the Japanese people. Meanwhile, as the food base of Japan, the gradual decrease of the agricultural population and more intensive agricultural practices on Hokkaido have led its arable land use to change year by year, which has also caused changes to the whole land use pattern of the entire island of Hokkaido. To realize the sustainable use of land resources in Hokkaido, past and future changes in land use patterns must be investigated, and target-based land use planning suggestions should be given on this basis. This study uses remote sensing and GIS technology to analyze the temporal and spatial changes of land use in Hokkaido during the past two decades. The types of land use include cultivated land, forest, waterbody, construction, grassland, and others, by using the satellite images of the Landsat images in 2000, 2010, and 2019 to achieve this goal to make classification. In addition, this study used the coupled Markov-FLUS model to simulate and analyze the land use changes in three different scenarios in Hokkaido in the next 20 years. Scenario-based situational analysis shows that the cultivated land in Hokkaido will drop by about 25% in 2040 under the natural development scenario (ND), while the cultivated land area in Hokkaido will remain basically unchanged in cultivated land protection scenario (CP). In forest protection scenario (FP), the area of forest in Hokkaido will increase by 1580.8 km2. It is believed that the findings reveal that the forest land in Hokkaido has been well protected in the past and will be protected well in the next 20 years. However, in land use planning for future, Hokkaido government and enterprises should pay more attention to the protection of cultivated land.

Strategic Role of Zakat in Multidimensional Quality of Life in Sijunjung, Indonesia

2018 ◽  
Vol 15 (1) ◽  
pp. 55-72
Author(s):  
Herlin Hamimi ◽  
Abdul Ghafar Ismail ◽  
Muhammad Hasbi Zaenal
Keyword(s):  
Quality Of Life ◽  
Positive Impact ◽  
Wealth Distribution ◽  
Absolute Poverty ◽  
Before And After ◽  
The Status ◽  
Being There ◽  
The Impact

Zakat is one of the five pillars of Islam which has a function of faith, social and economic functions. Muslims who can pay zakat are required to give at least 2.5 per cent of their wealth. The problem of poverty prevalent in disadvantaged regions because of the difficulty of access to information and communication led to a gap that is so high in wealth and resources. The instrument of zakat provides a paradigm in the achievement of equitable wealth distribution and healthy circulation. Zakat potentially offers a better life and improves the quality of human being. There is a human quality improvement not only in economic terms but also in spiritual terms such as improving religiousity. This study aims to examine the role of zakat to alleviate humanitarian issues in disadvantaged regions such as Sijunjung, one of zakat beneficiaries and impoverished areas in Indonesia. The researcher attempted a Cibest method to capture the impact of zakat beneficiaries before and after becoming a member of Zakat Community Development (ZCD) Program in material and spiritual value. The overall analysis shows that zakat has a positive impact on disadvantaged regions development and enhance the quality of life of the community. There is an improvement in the average of mustahik household incomes after becoming a member of ZCD Program. Cibest model demonstrates that material, spiritual, and absolute poverty index decreased by 10, 5, and 6 per cent. Meanwhile, the welfare index is increased by 21 per cent. These findings have significant implications for developing the quality of life in disadvantaged regions in Sijunjung. Therefore, zakat is one of the instruments to change the status of disadvantaged areas to be equivalent to other areas.

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