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林下秸秆覆盖种植大球盖菇对苦驴河源头坡地清水产流的影响
方梦萦, 李玉成, 张学胜, 白云, 邓威, 廖万雪
安徽大学 资源与环境工程学院, 安徽 合肥 230061
摘要:
[目的] 探索秸秆覆盖种植大球盖菇模式对经济林(尤其是刚刚荒改坡的经济林)清水产流和改土控草的影响,为坡地水源涵养、生态保育、控草保肥提供技术支撑。[方法] 在派河上游苦驴河的源头,选取2组不同种类的坡地经济林,利用秸秆覆盖种植大球盖菇技术,在大球盖菇生长的不同时期对该区域坡地水质、土壤有机质和杂草多样性进行分析。[结果] 采用秸秆覆盖种植大球盖菇的技术,平均能有效降低该地区水中总氮42.68%~50.47%,总磷45.72%~46.74%和悬浮物(SS)33.41%~36.58%的含量,同时增加土壤有机质的含量,平均增长了10.17%~16.42%,减少该区域杂草多样性和种类,有效降低了该地水肥流失,可在较短时间内无害且快速地增加该区域清水产流能力。[结论] 采用秸秆覆盖种植大球盖菇的技术,能有效降低坡地径流水中总氮、总磷和SS的含量,同时增加土壤有机质的含量,减少该区域杂草多样性和种类,起到控制水肥和水土流失作用,在当年荒改坡的坡地上,该作用更加明显。
关键词:  秸秆覆盖  大球盖菇  苦驴河源头  坡地  清水产流
DOI:10.13961/j.cnki.stbctb.2020.02.007
分类号:S19;X52
基金项目:水体污染控制与治理科技重大专项"水源涵养和生态保育清洁小流域技术综合集成应用推广"(2017ZX07603-002)
Influence of Cultivating Stropharia Rugosoannulata with Straw on Clean Water Runoff of Slope Land in Source Area of Kulü River
Fang Mengying, Li Yucheng, Zhang Xuesheng, Bai Yun, Deng Wei, Liao Wanxue
College of Resources and Environmental Engineering, Anhui University, Hefei, Anhui 230061, China
Abstract:
[Objective] The influence of cultivating Stropharia rugosoannulata with straw on clean water runoff, soil improvement and grass control in economic forests(especially in the newly economic forest) was explored, in order to provide technical support in water conservation capacity, ecosystem conservation, grass control and soil fertility improvement.[Methods] Two different kinds of slope land economic forests in the source area of Kulü River at upstream of Paihe River was selected, the technology of straw mulching was used to plant Stropharia rugosoannulata, and the water quality, soil organic matter and weed diversity of the slope land were analyzed in different growth periods of the mushroom.[Results] The cultivation of Stropharia rugosoannulata with straw effectively reduced the content of total nitrogen (42.68%~50.47%), total phosphorus (45.72%~46.74%) and suspended solids (SS, 33.41%~36.58%) in the water in this area. At the same time, it increased the content of soil organic matter by 10.17%~16.42% on average, and reduced the diversity and species of weeds in this area, thus, effectively reduced the water and fertilizer loss, and increased clean water runoff in a short period.[Conclusion] Cultivating Stropharia rugosoannulata with straw can effectively reduce the contents of total nitrogen, total phosphorus and SS in the runoff, increase the content of soil organic matter, reduce the diversity and species of weeds in this area, and play an important role in controlling water, fertilizer and soil erosion. In addition, the effect may be even more pronounced in the newly economic forest changed by uncultivated land.
Key words:  mulch with straw  Stropharia rugosoannulata  the source area of Kulü River  slope land  clean water runoff generation