基于单边界二分式CVM的不同样本方案下耕地保护外部性测度与分析——以河南省焦作市为例

发布时间：2018-06-01 15:06

本文选题：单边界二分式CVM + 不同样本方案　；参考：《资源科学》2017年07期

【摘要】：耕地保护的外部性显著,探析不同样本方案下基于单边界二分式CVM的耕地保护外部性差异性及其影响因素,有利于科学测度耕地保护经济补偿标准。本文以焦作市为例,分别测度了均分样本、非均分样本和分类非均分样本三种不同方案下耕地保护外部性,明晰了样本分类与合并、投标值样本数量及其均衡性对耕地保护外部性测度结果有效性与精度的影响。结果表明:(1)结合案例比较,在科学设置投标值和假想市场、合理进行假想偏差规避以及合适样本数量下,本研究中均分样本、非均分样本方案测度结果具有较高的有效性,可确定为现实条件下耕地保护经济补偿下限,即耕地保护最低经济补偿标准。(2)以非均分样本方案测度结果为基准,均分样本和分类非均分样本方案下测度结果的偏差值分别为41.5元和255.5元,偏差率则分别为3.2%和19.5%。因此基于单边界二分式CVM测度结果与投标值样本数量显著相关,与投标值样本数量均衡度的相关性则不显著。(3)在进行二分式CVM样本方案设计和实施时,均分样本、非均分样本、分类非均分样本方案均可采用,但各投标值(包括分类样本)最低样本数量需达到30份以上,其测度结果才具有较高的有效性。(4)在实践上,应基于最低耕地保护经济补偿标准,结合区域经济社会发展水平以及资金来源等条件,建立区域耕地保护经济补偿标准动态提升机制,完善耕地保护经济补偿体系。
[Abstract]:The externality of cultivated land protection is remarkable. The difference of cultivated land protection externality based on single-boundary dichotomy CVM under different sample schemes and its influencing factors are helpful to measure the economic compensation standard of cultivated land protection scientifically. Taking Jiaozuo City as an example, this paper measures the externality of cultivated land protection under three different schemes, I. e., average sample, non-equally divided sample and classified heterogeneous sample, and clarifies the classification and merging of samples. The effect of the sample number and its equilibrium on the effectiveness and accuracy of the measurement results of the externality of cultivated land protection. The results show that under the scientific setting of bidding value and hypothetical market, reasonable assumption deviation evasion and appropriate sample size, the results of the average sample and non-equally divided sample scheme in this study are highly effective. It can be determined as the lower limit of economic compensation for cultivated land protection under realistic conditions, that is, the minimum economic compensation standard for cultivated land protection. The deviation values of the measured results are 41.5 yuan and 255.5 yuan, respectively, and the deviation rates are 3.2% and 19.5%, respectively. Therefore, based on the results of single-boundary dichotomy CVM measure and the number of bid value samples, the correlation with the number of bidding value samples is significant, but the correlation with the number of bidding value samples is not significant. (3) in the design and implementation of dichotomous CVM sample scheme, samples are divided equally and unequally. The scheme of classifying non-equally divided samples can be adopted, but the minimum sample number of each tender value (including the classified sample) must reach more than 30, and its measurement result has higher validity. In practice, it should be based on the economic compensation standard of minimum cultivated land protection. In combination with the level of regional economic and social development and the sources of funds, the dynamic promotion mechanism of regional cultivated land protection economic compensation standard is established, and the economic compensation system of cultivated land protection is improved.
【作者单位】：河南理工大学测绘与国土信息工程学院;河南理工大学太行发展研究院;
【基金】：国家自然科学基金项目(41371524) 河南省高等学校哲学社会科学优秀学者资助项目(2014-YXXZ-34) 河南省高等学校哲学社会科学创新团队支持计划(2016-CXTD-04)
【分类号】：F323.211

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