摘要
作为一种生物环保材料,生态垫可以降低土壤侵蚀和肥力流失,促进植被恢复。以北京延庆县玉渡山风景区的盘山公路两侧绿化工程为研究对象,通过对铺设生态垫和未铺设生态垫的造林坡面的对比,对生态垫的功能进行了研究。结果表明,生态垫可以将因沟蚀引起的侵蚀模数由13 250 t/(km2.a)降至0,坡下部公路的表面受损率略微降低了1.89%,而公路破坏度则由21 969.7 cm3/m2降至12 997.8 cm3/m2,显著下降了40.84%。同时,坡面上树木个体的保存率从87.21%提高到95.32%,而保存树木个体的受损率则由74.69%显著降至2.15%。无疑生态垫既可有效地防止了水土流失,又可促进景观的绿化美化,因此可以在周边类似地区加以推广应用。
As a palm fibre based bio-material, ecomat mulching can reduce soil erosion and fertility loss and hasten vegetation restoration, Taking greening engineering at sides of highway in Yudu Mountain scene site, Yanqing county as an example, the function of ecomat in erosion control and afforestation is studied. The results show that compared to the slope without ecomat mulching, ecomat mulching can decrease erosion modulus from 13 250 t/（km^2 · a） to null, surface damage rate at the downslope highway decreases by i. 89 percent, and highway damage intensity decreases from 21 969.7 cm^3/m^2 to 12 997.8 cm^3/m^2, 40.84 percent reduction with statistical significance （0.05 level）. Simultaneously, survival rate of trees in the slope with ecomat mulching increase from 87.21% to 95.32%, and damage rate of tree decreases from 74.69% to 2.15% remarkably. Undoubtedly, ecomat mulch can not only control soil erosion, but accelerate revegetation in badland, hence, it can be extended in the similar projects and similar regions.
出处
《水土保持研究》
CSCD
北大核心
2006年第3期119-120,123,共3页
Research of Soil and Water Conservation
基金
中国-马来西亚科技合作项目"生态垫在京津风沙源区应用项目"
关键词
生态垫
土壤侵蚀
公路破坏
树木生长
京北石质山区
ecomat
soil erosion
highway damage
tree growth
stony mountains of northern Beijing
