基于农业节水的干旱区绿洲可持续发展研究——以渭干河流域为例

doi:10.7522/j.issn.1000-694X.2013.00040

摘要/Abstract

摘要：

建立节水型社会是中国的一项基本政策，也是解决渭干河流域水资源可持续利用问题的战略选择。渭干河流域是典型的灌溉农业区，农业灌溉大部分仍采用粗放型的土渠输水、大水漫灌方式，水资源流失严重，灌溉定额偏高，渠系入渗量高达14.01亿m3，农业节水潜力很大。在现有水量不可能增加的情况下，调整农业内部种植结构，发展节水农业是解决区域水资源短缺的有力措施。通过对2015年和2020年工业、城市化和生态用水进行预测，确定农田灌溉可用水量。选取渭干河流域9种种植面积最大的农作物，参考作物蒸散量及作物系数，得出各类农作物的实际需水量，并与现有灌溉量比较，发现现有灌溉量远大于作物的实际需水量，通过节水灌溉和水渠改造，可节约用水10.59亿m3。而且研究区的粮食种植面积亦远大于需求，即使未来10年不再扩大粮食种植面积，也比需求面积多出近2万hm2，如根据实际需求去调整，可节约1.05亿m3的水量，能极大缓解水资源紧缺的局面，将灌溉量控制在可用水量范围内，为加快城市化和工业化进程，保护区域生态提供充足的水资源保证。

关键词: 渭干河流域, 水渠改造, 农业用水, 种植结构, 节水技术

Abstract:

The water-saving society construction is a basic policy in China and a strategic choice to obtain the sustainable use of water resources in the arid lands. The Weigan River basin is a typical irrigation farming region in the arid lands, the majority of agriculture irrigation is extensive, such as earth canal and flooding irrigation. The water loss is serious, irrigation quota is high, canal infiltration is more than 1.4 billion m3, and the water-saving potential of agriculture irrigation is large in the Weigan River basin. On the condition of no increase of water quantity in the near future, adjusting the agriculture internal planting structure and developing water-saving agriculture is a favorable measure to solve water shortage problems. In this paper, the determination of the amount of water-using in agriculture irrigation based on a prediction of industry, urbanization and ecological water requirement was made. We selected nine kinds of crops with large acreage, took the amount of evaporate-transpiration and planting index of these crops as reference factors to conclude the actual amount of water-consuming of the crops. Compared with the current irrigation amount, we found that the current irrigation amount was greatly larger than the actual demand of the crops. We might save water more than 108 m3 by water-saving irrigation and water channel improvement. The actual grain planting area of the study region is out of the scale in need. Even if we will not expand the grain planting area any more in the next decade, there still exists nearly 20 000 hm2 beyond the minimum needed area. If we adjust the planting area according to actual demand, we may save neraly 100 million m3 water. It can greatly ease the water shortage and control the irrigation amount in a range of available water. Meanwhile, it can also provide plenty of water resource for ecological protection, urbanization and industrialization.

Key words: Weiganhe River basin, water channel improvement, agricultural water, planting structure, water-saving technology

中图分类号:

F303.4

霍金炜1,2，杨德刚1，张新焕1. 基于农业节水的干旱区绿洲可持续发展研究——以渭干河流域为例[J]. 中国沙漠, 2013, 33(1): 295-301.

HUO Jin-wei1,2, YANG De-gang1, ZHANG Xin-huan1. Sustainable Development of Oasis in Arid Area Based on Agricultural Water-saving: A case study in the Weiganhe River Basin, Xinjiang, China[J]. JOURNAL OF DESERT RESEARCH, 2013, 33(1): 295-301.

参考文献

[1]丁文广,卜红梅.产业结构调整对石羊河流域水资源可持续利用的影响[J].干旱区资源与环境,2008,22(11):19-23.

[2]胡志桥,田霄鸿,张久东,等.石羊河流域节水高产高效轮作模式研究[J].中国生态农业学报,2011,19(3):561-567.

[3]赵坤,刘年磊,赵林.基于可持续发展的衡水市水资源优化配置研究[J].水资源与水工程学报,2011,22(5):137-144.

[4]姚鑫,杨桂山,万荣荣.昆山市耕地变化和粮食安全研究[J].中国人口、资源与环境,2010,20(4):148-152.

[5]张仲伍,杨德刚,张小雷,等.绿洲城市综合规模与水资源相互作用关系研究[J].中国沙漠,2011,31(2):536-542.

[6]李玉义,逄焕成,陈阜,等.新疆玛纳斯河流域灌溉水资源保证程度及提升策略[J].自然资源学报,2010,25(1):32-42.

[7]唐数红.新疆干旱区流域规划中生态需水问题研究[J].新疆农业大学学报,2002,25(2):63-65.

[8]母敏霞,王文科,杜东,等.新疆奎屯河流域平原区生态需水研究[J].干旱区资源与环境,2008,22(3):96-102.

[9]侯兰功,肖洪浪,邹松兵,等.额济纳绿洲生长季参考作物蒸散发敏感性分析[J].中国沙漠,2011,31(5):1255-1259.

[10]乔旭宁,杨永菊,杨德刚.生态服务价值空间转移评价——以渭干河流域为例[J].中国沙漠,2011,31(4):1008-1014.

[11]满苏尔·沙比提,努尔卡木里·玉素甫,娜斯曼·那斯尔丁.新疆渭干河-库车河三角洲绿洲水资源供需分析[J].干旱区资源与环境,2010,24(12):145-149.

[12]罗家雄.新疆垦区盐碱地改良[M].北京:水利水电出版社,1985:14-248.

[13]范文波,赵建民,何晓华,等.石河子垦区种植业用水构成与种植结构调整[J].灌溉排水学报,2011,30(4):91-95.

[14]马晓河,蓝海涛.中国粮食综合生产能力与粮食安全[M].北京:经济科学出版社,2008:348-416.

[15]李启森,赵文智,冯起,等.黑河流域及绿洲水资源可持续利用理念及对策[J].自然资源学报,2005,20(3):370-377.

[16]郭承录,李发明.石羊河流域生态系统存在的问题及治理对策[J].中国沙漠,2010,30(3):608-613.

[17]高前兆.塔里木盆地南缘水资源开发与绿洲的生态环境效应[J].中国沙漠,2004,24(3):286-293.

[18]秦大庸,罗翔宇,陈晓军,等.西北干旱区水资源开发利用潜力分析[J].自然资源学报,2004,19(2):143-150.

[19]满苏尔·沙比提,李艳红.渭干河-库车河三角洲绿洲的水资源问题与农业节水潜力分析[J].干旱区资源与环境,2007,21(5):23-28.

[20]张百平,张雪芹,郑度.西北干旱区不宜作为我国耕地后备资源基地[J].干旱区研究,2010,27(1):1-5.