| 基于果园牧草间作的石漠化综合治理效益评价 |
| |
| 引用本文： | 程汉亭,刘国道,董荣书,王晓敏,李勤奋,周小慧,张显波.基于果园牧草间作的石漠化综合治理效益评价[J].中国岩溶,2022,41(2):210-219. |
| |
| 作者姓名： | 程汉亭 刘国道 董荣书 王晓敏 李勤奋 周小慧 张显波 |
| |
| 作者单位： | 1.中国热带农业科学院环境与植物保护研究所，海南 海口 571101 |
| |
| 基金项目： | 滇桂黔石漠化地区特色作物产业发展关键技术集成示范项目（SMH2019-2021）；中国热带农业科学院基本科研业务费专项（1630042017008，1630032021012）；贵州科技厅科技支撑项目（黔科合支撑[2017]2856号）；贵州农科院青年科技基金项目（黔农科院青年科技基金［2020］28号） |
| |
| 摘 要： | 开展石漠化综合治理效益评价，对于石漠化综合治理模式的优化和改进至关重要。文章以贵州兴义市南盘江镇田房村为研究对象，分析热带果树+覆盖作物措施的石漠化综合治理效益。通过调查兴义市南盘江镇田房村治理前（2014年）和治理后（2017年和2020年）的农业产业结构、产业资源发展、经济效益和生态效益，利用冗余分析(RDA)和结构方程建模(SEM)评价了田房村石漠化治理的综合效益。结果表明:通过将耕地转变为园地（芒果和澳洲坚果间作牧草或绿肥），综合治理6年后，该示范区农业产业结构、产业资源发展、经济效益和生态效益均呈现向好趋势；除了农/林草面积比和农产品商品产值两个观测变量，农业产业结构和产业资源发展与经济效益和生态效益之间观测指标均呈显著相关；果园用地比重、务工劳动力比重、务工贡献率、农产商品化产值、农/林草面积比5个变量是引起经济效益和生态效益变化的重要驱动因子；石漠化治理能耦合生态环境与产业资源的协调发展，同时实现生态恢复和经济增收。热带果树+覆盖作物相结合综合治理石漠化是该村生态恢复和经济增收的有效措施。研究结果为喀斯特石漠化综合治理提供了依据。
|
| 关 键 词： | 石漠化 综合治理 效益评价 结构方程模型 |
| 收稿时间： | 2021-08-02 |
Evaluation of rocky desertification comprehensive control based on orchard intercropped by herbage: A case study of the Xingyi City,Guizhou Province |
| |
| Abstract: | An evaluation of rocky desertification comprehensive control is very important to optimize and improve strategy for rocky desertification control modes. This paper aims to (Ⅰ) analyze the relationship among agricultural structure, industrial resources situation, economy benefit and ecology benefit; (Ⅱ) evaluate the comprehensive benefit of karst rocky desertification control by orchard-herbage intercropping, and further find its own advantages and disadvantages; (Ⅲ) provide ecological economic and sustainable development reference for rocky desertification control in the southwest karst area of China.A comprehensive prevention and control of rocky desertification area has been implemented in combination with tropical fruit tree intercropped by legume herb in Tianfang village, Nanpanjiang town, Xingyi City of Guizhou Province,where the rocky desertification is serious. To evaluate the comprehensive benefit of the demonstration area, we investigated the agricultural structure, industrial resources situation, and the benefits of economy and ecology before (2014) and after (2017 and 2020) karst rocky desertification control, and then adopted correlation analysis, Redundancy Analysis (RDA) and Structure Equation Modeling (SEM).By converting cultivated land to orchard (mango and Macadamia intercropped with herbage or green manure) the agricultural industrial structure ,industrial resources development,economic benefit and ecological benefit of the demonstration area showed a good trend after 6 years of rocky desertification comprehensive control. Correlation analysis showed that the agricultural industrial structure and industrial resources development situation were significantly correlated with economic benefit and ecological benefit, except for farming/forest-grass area ratio and commodity output value of agricultural products. RDA analysis showed that there are five variables which are the important contributing factors to the changes of economic benefit and ecological benefit such as, proportion of orchard land, migrant worker population, economic contribution rate of migrant workers, commodity output value of agricultural products farming/forest-grass area ratio SEM further showed that the rocky desertification control are able to couple the coordinated development of ecological environment and industrial resources, and at the same time achieve ecological restoration and economic benefit.Conclusions are drawn as follows, (Ⅰ) The rocky desertification control in orchards intercropped by fruit tree has increased the number of labor force and migrant workers,and improved the economic benefits by increasing commodity output value of agricultural products and migrant workers income. (Ⅱ) The ecological environment has been improved by increasing forest and grass coverage,soil erosion and water loss and surface runoff loss in the comprehensive control area of rocky desertification has been reduced. (Ⅲ) The rocky desertification control by orchard covered with fruit tree and intercropped by crops controlling rocky desertification will improve both economic benefit and ecological benefit. Overall, rocky desertification control by fruit tree intercropping orchard is an effective way to achieve sustainable development in the southwest karst area of China The study results provide a basis for the comprehensive control of karst rocky desertification. |
| |
| Keywords: | |
|
| 点击此处可从《中国岩溶》浏览原始摘要信息 |
| 点击此处可从《中国岩溶》下载免费的PDF全文 |
|
