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水土流失像病毒一样正在北大荒人开垦的黑土地上漫延,使曾经肥沃的土地泪痕涟涟,日益枯瘦,流失的面积之广,速度之快,令人震惊。针对垦区的自然地理特点,现以北安垦区为例对水土流失的成因,特点进行分析并探讨适合垦区特点的水土保持新路子。一、北安垦区水土流失概况北安垦区位于黑龙江省西北部的黑河境内,拥有土地总面积1365.81万亩,其中山丘区土地1036.14万亩,占总面积的75.8%,耕地364.01万亩,占总面积的26.65%.由于地形坡度大,坡长以及其他自然因素、人为因素,致使垦区内水土流失比较严重,据统计垦区耕地流
Soil and water loss, like a virus, is spreading over the black land reclaimed by the Great Northern Wilderness. It makes people feel terribly lashed and scrawny in the fertile land. In view of the natural geographical features of reclamation area, the cause and characteristics of soil and water loss are analyzed taking Bei’an Reclamation Area as an example to discuss the new way of soil and water conservation that is suitable for the reclamation area. I. Overview of Soil and Water Loss in Bei’An Reclamation Area Bei’An Reclamation Area is located in the Heihe River in the northwest of Heilongjiang Province and owns a land area of 13,658,100 mu, including 10,361,400 mu of hill land, accounting for 75.8% of the total area and 3,640,100 mu of arable land, accounting for 26.65% of the total area due to the terrain gradient, slope length and other natural factors, human factors, resulting in reclamation area soil erosion is more serious, according to statistics reclamation farmland flow