摘要
为了给水电工程建设水土保持弹性景观功能研究提供案例,运用景观生态学静态研究思想和中性模型建模方法,以土壤流失量、生态保护指标、净第一性生产力为参数,构建了水土保持弹性景观功能模型,用其计算的水土保持弹性景观功能ET值阈限为0~5,ET值越大表明土壤侵蚀越轻微、生态环境越优良、生态生产功能越强。以出山店水库大坝以上至92 m水位库区尾水上游第一条流域面积大于100 km2的支流为研究区进行实例计算,结果表明研究区水土保持弹性景观功能ET最大值、最小值、现状值分别为4.162、2.505、3.994,均超过ET值阈限平均值2.5,说明研究区水土流失相对轻微、生态环境良好、生态生产功能较强,但仍须进一步防治水土流失、保护生态环境。
In order to provide a case for the study of soil and water conservation elastic landscape function in the construction of hydro power projects,the idea of landscape ecology and neutral modeling method were used,taking soil loss,ecological protection index and net primary productivity as parameters,the elastic landscape function model of soil and water conservation was constructed.The ET threshold of soil and water conservation elastic landscape function was 0-5.The larger ET value indicated the smaller soil erosion,the better ecological environment and the stronger ecological production function.Taking the first tributary of the upper reaches of the tailwater in the upper reaches of the reservoir area above the dam to 92 m of the Chushandian Reservoir as an example,the results show that the maximum,the minimum and present values ET elastic landscape function in the study area are 4.162,2.505 and 3.994 respectively,which all exceeding the threshold average of ET 2.5,indicating that the soil and water loss in the study area is relatively slight,the ecological environment is good and the ecological production function is strong,however,further control of soil and water loss and protection of ecological environment are still needed.
作者
杨硕果
刘江侠
吴卿
何洪名
杨峰
李宝亭
祝云宪
张璐
李泮营
YANG Shuoguo;LIU Jiangxia;WU Qing;HE Hongming;YANG Feng;LI Baoting;ZHU Yunxian;ZHANG Lu;LI Panying(North China University of Water Resources and Electric Power,Zhengzhou 450046,China;Science&Technology Consultation Center of Haihe River Conservancy Commission,Ministry of Water Resources,Tianjin 300170,China;Administration Bureau of Chushandian Reservoir of Henan Province,Zhengzhou 450003,China;Soil and Water Conservation Monitoring Station of Henan Province,Zhengzhou 450003,China)
出处
《人民黄河》
CAS
北大核心
2020年第12期74-77,共4页
Yellow River
基金
河南省水利科技攻关计划项目(GG201805,GG201908)。
关键词
水土保持
弹性景观功能
模型
出山店水库
soil and water conservation
elastic landscape function
model
Chushandian Reservoir
