河套灌区农业水土资源时空匹配格局研究  

Study on Spatiotemporal Matching Pattern of Agricultural Water and Land Resources in Hetao Irrigation District

作　　者：郑久瑜 赵西宁[1,3] 操信春[1] 孙世坤[1] 张丽丽[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100 [2]西北农林科技大学中国旱区节水农业研究院,陕西杨凌712100 [3]中国科学院水利部水土保持研究所,陕西杨凌712100

出　　处：《水土保持研究》2015年第3期132-136,共5页Research of Soil and Water Conservation

基　　金："十二五"国家科技支撑计划(2011BAD29B09);高等学校学科创新引智计划(B12007)

摘　　要：为了客观地评价内蒙古河套灌区农业水土资源时空匹配情况,在分析灌区水土资源利用现状和空间分布格局的基础上,以灌溉用水量作为水资源量的表征参数,构建了农业水土资源匹配测算模型,评价了河套灌区及5个县域的农业水土资源匹配程度,并对其匹配程度进行了划分。结果表明:河套灌区农业水土资源匹配一般,耕地资源优势明显,水资源问题突出;10a来农业水土资源匹配程度逐渐降低,匹配程度空间差异性较为显著,总体呈现出"自西向东依次变差"的特点。针对河套灌区农业水土资源匹配程度差、区域差异明显的情况,应加强该区水利工程建设和加快水务管理体制改革,同时兼顾农业水土资源优化配置,提高河套灌区农业水土资源匹配程度。In order to evaluate the spatiotemporal matching situation of agricultural water and land resources correctly in Hetao Irrigation District, the utilization and spatial distribution pattern of the water and land resources were analyzed, and the amount of irrigation water was introduced into the study as the characteris- tic parameter of water resources quantity, and then a measure model for matching patterns was constructed to evaluate the matching degree of agricultural water and land resources of Hetao Irrigation District and five county regions in this area, the matching degree was graded finally. The results indicated that the agricultur- al water and land resources showed a situation on the whole that land resources were abundant while water resources were deficient; during the past decade the matching coefficient of agricultural water and land resources was reducing gradually, and the spatial distribution patterns of the two resources exhibited an obvi- ous dislocation phenomenon, the characteristic was that the degree was decreasing from west to east. Against the situation of agricultural water and soil resources in Hetao Irrigation District, strengthening the construction of water conservancy project, speeding up the water management system reform and optimizing agricultural soil and water resources configuration should be conducted to increase the degree of agricultural water and soil resources matching.

关 键 词：河套地区 农业水土资源 匹配系数 时空差异 

分 类 号：F323.2[经济管理—产业经济]