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珠海市被地开垦侵蚀的面积为756.82hm2,主要分布于西区斗门县的乾务、五山、斗门等镇,以及平沙区、三灶区等地海拔10~50m、坡度大于10的丘陵台地;侵蚀强度以中度侵蚀为主.平均侵蚀模数2380t/(km2·a)。造成坡地开垦侵蚀的主要原因是开垦利用过程中水土保持措施没有跟上,选择的坡地坡度过大,本文针对珠海市坡地开垦侵蚀的特点,建议采用等高绿篱耕作、山边沟技术、复合农村技术等几项坡地水土保持措施。
Zhuhai was ground reclamation erosion area of 756.82hm2, mainly in western Doumen County dry work, Wushan, Doumen and other towns, as well as Pingsha District, Sanzao and other places 10 to 50m above sea level, slope greater than 10 of the hilly terraces The erosion intensity is mainly moderate erosion. The average erosion modulus 2380t / (km2 · a). The main reason for the erosion caused by slope reclamation is that the soil and water conservation measures in the process of reclamation and utilization are not kept up and the slope gradient of the slope is too large. Based on the characteristics of reclamation and erosion erosion in slope land in Zhuhai, this paper proposes to use contour hedge farming, hillside ditch technology, Technology and other slope soil and water conservation measures.