摘要
通过对南宁市2011年和2016年2次石漠化监测数据进行空间和叠加对比分析,研究其石漠化动态变化和原因,并提出相应的治理对策。结果表明:南宁市石漠化土地分布相对集中,以重度石漠化土地为主,石漠化程度较高,2016年石漠化土地面积84309.58 hm ^2,比2011年减少25566.03 hm ^2,土地演变以顺向演替为主,总体保持稳定,稍有改善,局部发生恶化,引起转变的主要原因分别是林草措施和人为破坏。
Based on the spatial and overlay comparative analysis of the monitoring data of the two times of rocky desertification in Nanning in 2011 and 2016,the dynamic changes and causes of the rocky desertification were studied,and the corresponding countermeasures were put forward.Result shows that the distribution of rocky desertification land in Nanning City is relatively concentrated,and the area of rocky desertification land is 84309.58 hm^ 2 in 2016,which is 25566.03 hm^ 2 less than that in 2011.The land evolution is mainly in the direction of succession,which is generally stable,slightly improved,and locally deteriorated.The main reasons for the change are forest and grass measures and man-made destruction.
作者
韦宏宇
林盛锦
兰群山
蒋进球
Wei Hongyu;Lin Shengjin;Lan Qunshan;Jiang Jinqiu(Dingdang Forest Farm,Nanning City,Nanning 532709,China)
出处
《防护林科技》
2020年第3期28-29,39,共3页
Protection Forest Science and Technology
关键词
岩溶土地
石漠化
动态变化
顺向演替
逆向演替
karst Land
rocky desertification
dynamic change
consequent succession
reverse succession
