干旱风沙区典型退耕还林地集沙监测与评价——以宁夏回族自治区盐池县为例  

Monitoring and Evaluation of Sand Amount Collected in Typical Forestland Converted from Farmland in Arid Sandstorm Area:A Case Study of Yanchi County,Ningxia Hui Autonomous Region

作　　者：张宇 王云霞 左忠[1] 孔丽婷 王治啸 高红军 范金鑫 Zhang Yu;Wang Yunxia;Zuo Zhong;Kong Liting;Wang Zhixiao;Gao Hongjun;Fan Jinxin(Institute of Forestry and Grassland Ecology,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 750002,Ningxia,China;Ningxia Animal Husbandry Workstation,Yinchuan 750002,Ningxia,China;Ningxia Reforestation and Three North workstation,Yinchuan 750001,Ningxia,China)

机构地区：[1]宁夏农林科学院林业与草地生态研究所,银川750002 [2]宁夏回族自治区畜牧工作站,银川750002 [3]宁夏退耕还林与三北工作站,银川750001

出　　处：《林草政策研究》2023年第1期31-36,共6页Journal of forestry and grassland policy

基　　金：2022年宁夏回族自治区自然科学基金项目“宁夏典型生态区域大气降尘通量时空变化规律及元素组成溯源解析”(2022AAC03417);宁夏退耕还林工程效益监测项目“宁夏回族自治区林草局退耕还林生态效益监测专项”(250000005);宁夏农业高质量发展和生态保护科技创新示范项目“基于有效防控风蚀的贺兰山沿山葡萄适宜种植区域识别研究”(NGSB-2021-4-3);宁夏回族自治区人才专项“宁夏回族自治区第六批科技创新领军人才项目”(2020GKLR0100);2022年中央财政林业科技推广示范项目“生态经济型旱生乡土植物林草间作效益提升技术示范推广”([2022]ZY 09号)。

摘　　要：文中以集沙池(集沙槽)法分别对干旱风沙区宁夏回族自治区盐池县典型退耕还林柠条灌木林地、樟子松乔木林地、旱作农田、放牧草地的近地表集沙量进行监测与评价。研究表明:旱作农田的年均总集沙量最大,为319288.43 g,分别是樟子松乔木林地、退耕还林柠条灌木林地、放牧草地的241.43、351.88、1.96倍;旱作农田及放牧草地均是当地主要沙尘源,而退耕还林柠条灌木林地防风固沙效果最为明显。研究结果可为科学评价退耕还林还草工程生态效益提供技术支撑,对干旱风沙区生态修复有指导意义。The near-surface wind erosion in typical forestland converted from farmland to forest,including Caragana intermedia shrub land,Pinus sylvestris var.mongolica forestland,rainfed farmland and grazing grassland in Yanchi County is monitored and evaluated using sand ponding method.The results show that rainfed farmland has the maximum annual average sand amount collected at 319288.2 g,which is 241.43,351.95 and 1.96 times of that of P.sylvestris var.mongolica forestland,C.intermedia shrub land and grazing grassland,respectively;rainfed farmland and grazing grassland are the main source of sand and dust in the study area,while C.intermedia shrub land has the most obvious effect in terms of windbreak and sand fixation.This study would provide technical backup for the science-based evaluation of ecological benefits of the forestland converted from farmland,which is of great significance for guiding the ecological restoration in arid sandstorm area.

关 键 词：退耕还林地 干旱风沙区 集沙池法 集沙量 盐池县 宁夏回族自治区 

分 类 号：S7[农业科学—林学]