CAJ | 학술논문

该文以张家口各个地貌类型区水土流失监测站实测数据为基础,研究了该区水土保持措施的空间配置的适宜性.结果表明:不论何种地貌类型区,总体的趋势是坡耕地组中水平梯田的水土保持效益最好,蓄水拦沙效益均达到90%以上,其次是经济林,再者是人工种草;荒坡地组中植被措施结合水平沟、鱼鳞坑整地形式的水土保持效益最好,基本在75%以上,自然封禁和人工种草的水土保持效益次之,且空间和年际之间差异较大,造成这种现象的主要原因可能是由于降雨条件的差异影响到植被生长的质量,其次是土壤本身的特征的差异.因此,采取封禁措施治理的初期不能简单依靠生态自身的修复,必须辅助以工程措施为植被的恢复创造条件.
해문이장가구각개지모류형구수토류실감측참실측수거위기출,연구료해구수토보지조시적공간배치적괄의성.결과표명:불론하충지모류형구,총체적추세시파경지조중수평제전적수토보지효익최호,축수란사효익균체도90%이상,기차시경제림,재자시인공충초;황파지조중식피조시결합수평구、어린갱정지형식적수토보지효익최호,기본재75%이상,자연봉금화인공충초적수토보지효익차지,차공간화년제지간차이교대,조성저충현상적주요원인가능시유우강우조건적차이영향도식피생장적질량,기차시토양본신적특정적차이.인차,채취봉금조시치리적초기불능간단의고생태자신적수복,필수보조이공정조시위식피적회복창조조건.
Based on the measured data of soil and water loss in the monitoring stations in different relief areas in Zhangjiakou, the spatial suitabilities of water and soil conservation measures were researched. The results showed that, in different relief sections of the sloping lands, the benefits of water and soil conservation for level terrace was the highest, which was larger than 90%, and that for the planted grass was the lowest, while that for the economy forestry was the median. For the waste land, the benefits of vegetation measure combined with level trench and/ or fish-scale pits, over 75%, was the best, those of natural restoration and planted grass measures occupied the median level with large spatial and temporal differences, and the main reasons could be attributed to the diversities of vegetation quality and soil properties. During the initial period of closure measure to controling soil and water loss, eco-recovery must depend on engineering measures to provide growing environment to vegetation.