摘要
为进一步精准落实水土保持生态建设要求,根据甘肃省水土保持率现状值、远期目标值,探究甘肃省水土保持三级区划水土保持对策和措施布局,结果表明:8个三级区水土保持率现状值和远期目标值变化范围分别为51.38%~80.76%、54.02%~87.65%,其中若尔盖高原生态维护水源涵养区现状值(80.76%)最高,陇南山地保土减灾区远期目标值(87.65%)最高,河西走廊农田防护防沙区现状值和远期目标值均最低;水土保持率远期目标值与现状值的差值为0.66~18.30个百分点,其中晋陕甘高塬沟壑蓄水保土区最高,若尔盖高原生态维护水源涵养区最低;主要的水土保持功能定位体现在农田防护和防风固沙、蓄水保水和土壤保持、水源涵养、防灾减灾等方面,据此提出以小流域为单元的山水林田湖草沙系统治理,以天然牧草地、森林、河湖湿地保护为主的自然生态修复,以及量水而行的农田防护等防治策略和水土保持措施布局。
To further accurately implement the requirements of ecological construction of soil and water conservation,based on the current and long-term target values of soil and water conservation rate in Gansu Province,the paper explored the soil and water conservation strategies and measures layout of the three-level zoning of soil and water conservation in Gansu Province.The outcomes show that a)the current and long-term target values of soil and water conservation rates in 8 third-degree areas vary from 51.38%to 80.76%and 54.02%to 87.65%,respectively;b)among them,the current value of the ecological maintenance and water source conservation area of the Ruoergai Plateau is the highest,the long-term target value of the soil conservation and disaster reduction area of the Longnan Mountains is the highest,and the current and long-term target values of the farmland protection and sand prevention area of the Hexi Corridor are both the lowest;c)the difference between the long-term target value and the current value of soil and water conservation rate vary from 0.66 to 18.30 percentage points,with the highest value in the water storage and soil conservation area of the Shanxi,Shaanxi and Gansu Plateau gully and the lowest value in the ecological maintenance and water source conservation area of the Ruoergai Plateau;d)the main functions of soil and water conservation include farmland protection and wind and sand prevention,water storage and soil conservation,water source conservation,disaster prevention and reduction,etc.And based on these,the paper proposed the systematic management for mountains,waters,forests,farmlands,lakes,grasses,and sands with small watersheds as the unit,ecological restoration mainly focuses on the protection of natural grasslands,forests,rivers,lakes,and wetlands,as well as prevention and control strategies and soil and water conservation measures layout for farmland protection according to water yield.
作者
吕文强
马红斌
张煜
马涛
董彦丽
LYU Wenqiang;MA Hongbin;ZHANG Yu(Gansu Institute of Soil and Water Conservation Science,Lanzhou,Gansu 730020,China;Gansu Research Center of Soil and Water Conservation Engineering,Lanzhou,Gansu 730020,China;Yellow River Basin Monitoring Center of Soil and Water Conservation and Ecological Environment,Xi’an,Shaanxi 710021,China;Gansu Province Department of Water Resources,Lanzhou,Gansu 730000,China)
出处
《中国水土保持》
2025年第3期63-66,I0005,共5页
Soil and Water Conservation in China
基金
甘肃省水利科学试验研究及技术推广计划项目(23GSLK005,22GSLK008,24GSLK005)
甘肃省水利厅水土保持科研项目(HT-GTJZ-2021032-STBC)。
关键词
水土保持
措施布局
水土保持率
甘肃省
soil and water conservation
measures layout
soil and water conservation rate
Gansu Province
