论文部分内容阅读
第四纪红色粘土区是江西省的主要水土流失区之一,占全省水土流失面积的13.9%.“红色沙漠”就是对第四纪红土侵蚀劣地的一种形象描述,其表土层乃至亚表土层被剥蚀后的裸露网纹层土壤养分贫乏,结构不良,保水保土能力极差,加之降水分布不均和季节性高温,一般植物很难成活和正常生长.桃树是一种重要的落叶果树,它分布很广,适应性强,栽培容易,开始结果早,盛果期早,早期收益高,只要栽培管理得当,易获丰产.因此,我们试图通过本试验,以最少的经济投入,快速恢复第四纪红色粘土区侵蚀劣地的植被,达到“三种效益”一齐上的目的,为侵蚀劣地的综合治理和开发利用提供一条有效的途径.1 试验地基本情况本试验从1987年开始在泰和县老虎山小流域内进行.试验区属中亚热带湿润季风区,气候温暖,雨量充沛,四季分明,年平均气温18.6℃,最低气温-6℃,最高气温40.4℃,高
The Quaternary red clay area is one of the major soil erosion areas in Jiangxi Province, accounting for 13.9% of the total area of soil erosion in the province. “Red Desert” is an image description of Quaternary red clay erosion. Its topsoil and even Subtropical soil denuded exposed textured layer of soil nutrient deficiency, poor structure, poor soil and water conservation capabilities, combined with uneven precipitation and seasonal high temperatures, the general plant is difficult to survive and grow normally. Peach is an important Of the deciduous fruit trees, it is widely distributed, adaptable, easy to cultivate, the beginning of the early results, fruiting early, early high returns, as long as proper cultivation and management, easy to yield. Therefore, we try to pass this test, with the least economy In order to achieve the goal of “three benefits” together, it can provide an effective way for the comprehensive management and development and utilization of degraded sites.1 Basic situation of the test site This test Since 1987, it has been carried out in Laohushan watershed in Taihe County, which belongs to the subtropical humid monsoon region with warm climate, abundant rainfall and four seasons, with an annual average temperature of 18.6 ℃, a minimum temperature of -6 ℃ and a maximum temperature of 40.4 High