干旱区生态环境知识资源中心(Arid): 基于质量-风险的干旱区休耕空间布局及补偿策略

Arid

	基于质量-风险的干旱区休耕空间布局及补偿策略
其他题名	Spatial distribution and compensation strategy of land fallow based on quality-risk in arid areas
	曾庆敏; 王雨蓉; 王晶; 陈利根; 黄金升; 刘新平
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2021
卷号	37 期号:20 页码:266-276
中文摘要	构建节水型休耕生态补偿机制是干旱地区农业可持续发展的必然选择,探讨符合干旱地区休耕地的空间布局方法是提高休耕生态补偿效率的关键。该研究以新疆开都-孔雀河流域为例,从土壤理化属性和耕作便利条件两方面建立耕地质量评价指标体系,利用综合评估法评估流域内耕地质量状况;基于MEDALUS-ESAs模型框架,从土壤、气候、植被和土地利用与管理4个方面评估全流域的土地退化风险;综合考虑耕地质量和土地退化风险,利用Z-score方法确定休耕空间布局,并提出不同分区的休耕补偿策略。结果表明:1)开都-孔雀河流域耕地质量总体良好,局部较差,土地退化风险呈现北低南高的空间分布格局;2)流域内优先休耕区内耕地面积为67 814.60 hm~2,次优先休耕区的耕地面积为71 784.94 hm~2,限制休耕区内耕地面积为80 576.89 hm~2,禁止休耕区内耕地面积为107 358.03 hm~2;3)优先休耕区耕地的约束条件为耕地质量,可将休耕与耕地质量提升相结合,实施中长期休耕,依据农业收益损失和土地改良成本确定休耕补偿标准;次优先休耕区耕地质量较好,可与农业节水相结合,基于水资源短缺状况对耕地进行季节性休耕,依据农业收益损失确定休耕补偿标准;限制休耕区受耕地质量和生态安全的双重约束,应将休耕与耕地质量提升、生态保护相结合,实施年度休耕,依据农业收益损失、土地改良成本和生态保护成本确定休耕补偿标准。
英文摘要	A diversified fallow ecological compensation is an inevitable choice for the sustainable development of agriculture in China. It is very necessary to explore the spatial distribution of fallow land for the higher efficiency of ecological compensation for fallow in arid areas. Taking the Kaidu-Kongque River basin in Xinjiang as an example, this article aims to propose different compensation strategies for different zones, thereby determining the spatial layout of fallow, considering the quality of cultivated land and risk of land degradation. The specific procedures were: 1) An evaluation index system of cultivated land quality was established to select the indicators from two aspects of soil physical and chemical properties, and cultivation convenience. A comprehensive evaluation was then made for the quality of cultivated land. 2) MEDALUS-ESAs model was selected to estimate potential risks of land degradation in the basin, where four indicators included soil, climate, vegetation and land use. 3) The Z-score was also applied for the quality score of cultivated land and risk index of land degradation. The standardized value was divided into four quadrants, according to the coordinate axis to determine the spatial distribution of fallow. Specifically, the cultivated land with low quality and low risk was classified as a priority fallow area, high quality-low risk was classified as a sub-priority fallow area, low quality-high risk was classified as restricted fallow areas, and high-quality-high-risk was classified as fallow area. 4) Different compensation strategies were finally proposed for fallow, according to different zones. The results showed that: 1) There was a fair overall quality of cultivated land in the whole Kaidu-Kongque River Basin, but slightly good in local areas. The spatial pattern of land degradation risk was low in the northern, high in the southern. 2) The area of cultivated land located in the priority fallow area was 67 814.60 hm~2, mainly distributed in the western part of Kongque River Oasis and the northeastern part of Bosten Lake. The area of cultivated land located in the sub-priority fallow was 71 784.94 hm~2, mainly distributed in the northern part of the Kaidu River Oasis. The area of cultivated land located in the restricted fallow area was 80 576.89 hm~2, mainly distributed in the central area of the Kongque River Oasis, the northern and southern part of Bosten Lake, and the eastern part of the Kaidu River Oasis. The area of cultivated land located in the forbidden fallow area was 107 358.03 hm~2, mainly distributed in the southern part of Kaidu River and Kongque River Oases and the eastern Bosten Lake. 3) The cultivated land located in the priority fallow area was restricted by cultivated land quality. As such, the long-term fallow was necessary to combine with the quality improvement of cultivated land. The fallow compensation in the zone was determined, according to the loss of agricultural income and the cost of land improvement. Furthermore, the cultivated land located in the sub-priority fallow area was in good condition, where the fallow can be combined with agricultural water saving to implement seasonally fallow. More importantly, the fallow compensation depended mainly on the loss of agricultural income. The cultivated land in the restricted fallow area was restricted by cultivated land quality and ecological safety. Therefore, the fallow can be combined with cultivated land quality improvement and ecological protection to implement annual fallow, where the agricultural income loss, land improvement costs, and ecological protection costs standard should be considered into the fallow compensation.
中文关键词	休耕 ; 生态补偿 ; 耕地质量 ; 土地退化风险 ; 空间布局 ; 开都-孔雀河流域
英文关键词	land fallow ecological compensation farmland quality land degradation risk spatial layout Kaidu-Kongque River Basin
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7110866
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377800
作者单位	曾庆敏, 南京农业大学公共管理学院, 南京, 江苏 210095, 中国.; 陈利根, 南京农业大学公共管理学院, 南京, 江苏 210095, 中国.; 王雨蓉, 上海市农业科学院农业科技信息研究所, 上海 201403, 中国.; 王晶, 西北农林科技大学经济管理学院, 杨凌, 712100.; 黄金升, 安徽工业大学商学院, 马鞍山, 安徽 243002, 中国.; 刘新平, 新疆农业大学管理学院, 乌鲁木齐, 新疆 830052, 中国.
推荐引用方式 GB/T 7714	曾庆敏,王雨蓉,王晶,等. 基于质量-风险的干旱区休耕空间布局及补偿策略[J],2021,37(20):266-276.
APA	曾庆敏,王雨蓉,王晶,陈利根,黄金升,&刘新平.(2021).基于质量-风险的干旱区休耕空间布局及补偿策略.农业工程学报,37(20),266-276.
MLA	曾庆敏,et al."基于质量-风险的干旱区休耕空间布局及补偿策略".农业工程学报 37.20(2021):266-276.