摘要
[目的]促进东江源区果畜结合系统的养分循环利用,控制生猪养殖和脐橙种植产生的面源污染。[方法]以江西省定南县龙塘镇杏林农庄"猪-沼-果-鱼"生态农业模式为研究对象,在分析畜禽养殖粪尿排泄量与利用量的基础上,针对果园"养猪-沼气-果树-养鱼"四位一体的物质循环和能量梯级利用运行模式,对"以种定养"进行了定量化分析。[结果]基于果树对养分N的需求,一亩脐橙园可承载的生猪为2.72头,配套建设沼气池1.88m3,可培养浮萍1166.67kg,鱼塘可套养草鱼25.57条;一亩温柑园可承载的生猪为1.96头,配套建设沼气池1.35m3,可培养浮萍841.53kg,可套养草鱼18.44条。[结论]该研究结果为在东江源区推广种养结合模式时匹配"猪-沼-果-鱼"间的量化关系提供了重要的科学参考依据。
[Objective] The aim was to promote nutrient cycling and utilization in the mountain's system combining fruits and poultry and to control non-point source pollution produced from swine raising and navel orange planting in headwaters of Dongjiang River. [Method] The quantitative analysis was mainly conducted for the so called "raising by planting" which is about material cycle in "pig-methane-fruit-fish" model and energy cascade utilization, based on relationship between excreted amount by livestock and the utilized quantity in Xinlin Farm in Longtang Town, Dingnan County, Jiangxi Province. [Result] Considering N requirement by fruit trees, a navel orange orchard (1 mu) could support about 2.72 pigs, the equipped biogas pool (1.88 m3) could support 1 166.67 kg of duckweeds and a fish pond could support 25.57 grass carps. In contrast, a satsuma orchard (1 mu) could support about 1.96 pigs, the equipped biogas pool (1.35 m3) could support 841.53 kg duckweeds and the fish pond could support 18.44 grass carps. [Conclusion] The results provided scientific references for quantitative allocation of members in "pig-methane-fruit-fish" model when popularized in headwaters of Dongjiang River.
基金
Supported by "Control and Treatment of Water Pollution" in National Science and Technology Major Project of China (2009ZX07211-001)~~
关键词
东江源
以种定养
“猪-沼-果-鱼”生态农业模式
定量化配置
Headwaters of Dongjiang River
"Raising by planting"
"Pig-methane- fruit-fish" model
Quantitative allocation