云南省沼泽湿地资源动态变化分析
Dynamic Changes of Marsh Wetland Resources in Yunnan Province
刘茜 1李玲芬 2吴富勤 1廖聪宇 1董磊 1秦燕1
作者信息
- 1. 云南省林业调查规划院,云南 昆明 650051
- 2. 云南省湿地保护管理办公室,云南 昆明 650224
- 折叠
摘要
以云南省湿地资源监测数据为基础,利用动态度、相对变化率模型,系统地对 2001-2021 年间云南省沼泽湿地面积、空间分布特征及其影响因素进行分析.研究结果表明,2012 年较 2001 年云南省沼泽湿地面积迅速增加,增量为 2.83 万hm2;2012-2021 年间云南省沼泽湿地面积呈波动型增加趋势,增量为8 366.84 万hm2,但各沼泽湿地型的变化趋势存在差异,其中草本沼泽面积增加 4309.58 hm2,灌丛沼泽增加1099.80 hm2,森林沼泽增加4179.52 hm2,淡水泉增加1.83 hm2,沼泽化草甸减少1 223.89 hm2;空间分布方面,滇西滇西北横断山脉高原湿地区、滇中和滇东高原湖盆湿地区、滇南中山山原河流湖泊湿地区在此时期沼泽湿地面积均呈增加趋势,滇东北中山深切割河流高原沼泽草甸湿地区、滇东南岩溶山原湖泊河流湿地区以及滇西南中低山宽谷河流湖泊湿地区在此时期沼泽湿地面积均呈减少趋势,各湿地区变化趋势具有差异性.沼泽湿地资源变化原因主要与人为因素及自然因素有关.
Abstract
Based on the monitoring data of wetland resources in Yunnan Province,the dynamic degree and relative change rate model was used to systematically analyze the area,spatial distribution character-istics and influencing factors of marsh wetlands in Yunnan Province from 2001 to 2021.The results showed that compared with 2001,the marsh area increased rapidly in 2012,with an increment of 28300 hm2;from 2012 to 2021,the area of marsh wetland showed a trend of fluctuating increase,with an incre-ment of 83.6684 million hm2.However,the variation trend of marsh wetland types was different.The are-a of herb marsh increased by 4 309.58 hm2,shrub marsh by 1 099.80 hm2 and forest marsh by 4 179.52 hm2,fresh water spring increased by 1.83 hm2,and swamp meadow decreased by 1 223.89 hm2;in terms of spatial distribution,the wetland area of Hengduan Mountains plateau in western and northwestern Yunnan,the wet area of lake basin in central and eastern Yunnan plateau,and the wet area of river and lake in moderately high mountain in southern Yunnan all showed an increasing trend during this period.During this period,the wetland area in northeast Yunnan,the karst mountain lake and river wet area in southeast Yunnan,and the middle and low mountain and wide valley river and lake wet area in southwest Yunnan all showed a decreasing trend,and the variation trend was different among the wet areas.The change of wetland resources was mainly related to human factors and natural factors.
关键词
沼泽湿地/资源动态变化/空间分布特征/动态度/相对变化率/云南省Key words
marsh wetlands/dynamic changes of resources/spatial distribution characteristics/dynamic degree/relative rate of change/Yunnan Province引用本文复制引用
基金项目
云南省科技厅2023年第二批科技成果转化专项资金(530000231100001753720)
出版年
2024
NETL
NSTL
万方数据