
滴灌工程对农业生产能力的影响评估
张聪, 盛建东, 朱先海, 轩俊伟, 周学林, 杨世平, 蒋平安
滴灌工程对农业生产能力的影响评估
Evaluation of the Effect of Drip Irrigation Engineering on Agricultural Productivity
滴灌工程作为干旱区绿洲灌溉农业增产增收的一项革命性技术工程,对农业生产和生态环境产生着深远影响。为了有效评估滴灌工程对农业生产能力的影响,将沙雅县作为研究区域,利用归一化差异植被指数(Normalized Difference Vegetation Index, NDVI)数据集、气象数据集和土地利用/覆被变化(Land Use/Cover Change, LUCC)数据集,对滴灌工程在建设与运行期间(2014-2022年)的县域NDVI及耕地面积时空变化进行分析。结果表明:①2014-2022年,全县耕地面积增加了83.83 km2,其中滴灌工程区占比71.22%。②滴灌工程区耕地NDVI平均增长率为0.44%/a,而非滴灌工程区耕地NDVI平均增长率仅为0.30%/a,滴灌工程区耕地NDVI变化较为明显。③滴灌工程实施后,年降水量降低了42.48%,然而县域NDVI却呈现出“增加—平缓—增加”的变化特征,平均增速为0.27%/a,平均增长11.53%。农业生产能力没有降低反而增加。滴灌工程的实施,不仅促进了土地流转与规模化经营,田块的破碎化程度降低,显著扩大了有效耕地面积,更重要的是县域农业产能(NDVI)与节水抗旱能力显著提升,沙雅县整体农业生产能力得到提高。因此,滴灌工程对于提高干旱区农业生产能力和生态环境具有重要意义。
As a revolutionary technical project to increase agricultural production and income in arid oasis irrigation, drip irrigation engineering has a profound impact on agricultural production and the ecological environment. To effectively evaluate the impact of drip irrigation engineering on agricultural productivity, this study took Shaya County as the research area, and analyzed the spatiotemporal changes of NDVI and cultivated land area in the county during the construction and operation period of drip irrigation engineering (2014-2022) by using Normalized Difference Vegetation Index (NDVI) datasets, meteorological datasets and Land Use/Cover Change (LUCC) datasets. The results show that: ①From 2014 to 2022, the cultivated land area of the county increases by 83.83 km2, with drip irrigation engineering accounting for 71.22% of this expansion. ②The average growth rate of NDVI in the drip irrigation area is 0.44%/a, while the average growth rate of NDVI in the non-drip irrigation area is only 0.30%/a. The change of NDVI in the drip irrigation area is obvious. ③After the implementation of drip irrigation project, the annual precipitation decreases by 42.48%, but NDVI of the county shows a characteristic pattern of "increase - gentle - increase", with an average growth rate of 0.27%/a and an average increase of 11.53%. Agricultural productivity increased rather than decreased. The implementation of drip irrigation engineering not only promoted land transfer and large-scale management, reduced plot fragmentation, it also significantly expanded the effective cultivated land area. Moreover, the county agricultural productivity (NDVI) and water saving and drought resistance ability are significantly improved, and the overall agricultural production capacity of Shaya County is improved. Therefore, drip irrigation projects hold significant importance in improving agricultural productivity and ecological environment in arid areas.
滴灌工程 / 沙雅县 / 归一化差异植被指数 / 土地利用/覆被变化 / 农业生产能力 {{custom_keyword}} /
drip irrigation engineering / Shaya County / normalized difference vegetation index / land use/cover change / agricultural productivity {{custom_keyword}} /
图3 2014-2022年沙雅县耕地面积年际变化趋势图Fig.3 Interannual variation trend of cropland area in Shaya County from 2014 to 2022 |
表1 2016-2020年沙雅县土地利用变化转移矩阵 (km2)Tab.1 Transition matrix of land use change in Shaya County from 2016 to 2020 |
2016年 | 2020年 | 总面积 | 转出量/% | |||||
---|---|---|---|---|---|---|---|---|
耕地 | 林地 | 草地 | 水体 | 建设用地 | 未利用地 | |||
耕地 | 2 071.68 | 0.00 | 79.24 | 1.78 | 20.41 | 0.02 | 2 173.14 | 0.79 |
林地 | 0.00 | 0.27 × 10-2 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 × 10-2 | 0 |
草地 | 169.50 | 0 | 2631.70 | 1.79 | 65.38 | 124.72 | 2 993.08 | 2.80 |
水体 | 0.16 | 0 | 9.08 | 31.87 | 6.70 | 1.08 | 48.89 | 0.13 |
建设用地 | 0.00 | 0 | 0.05 | 1.72 | 593.94 | 0.01 | 595.71 | 0.01 |
未利用地 | 15.63 | 0 | 122.41 | 1.04 | 7.67 | 6 936.83 | 7 083.58 | 1.14 |
总面积 | 2 256.97 | 0.27 × 10-2 | 2 842.47 | 38.20 | 694.10 | 7 062.66 | 12 894.40 | — |
转入量/% | 1.44 | 0 | 1.63 | 0.05 | 0.78 | 0.98 | — | — |
图5 滴灌工程实施前后NDVI年际变化趋势空间分布图Fig.5 Spatial distribution of interannual NDVI changes trend before and after the implementation of drip irrigation engineering |
表2 滴灌工程实施前后沙雅县NDVI变化趋势面积统计表Tab.2 The area of NDVI changes trend before and after implementing the drip irrigation engineering in Shaya County |
NDVI年际变化趋势 | 滴灌工程实施前(阶段I) | 滴灌工程实施后(阶段III) | ||
---|---|---|---|---|
面积/km2 | 面积比重/% | 面积/km2 | 面积比重/% | |
明显变差(<-0.010) | 35.98 | 0.47 | 40.52 | 0.53 |
轻微变差(-0.010~-0.001) | 1 849.11 | 23.94 | 1 083.93 | 14.23 |
基本稳定(-0.001~0.001) | 3 008.03 | 38.95 | 3 011.09 | 39.53 |
轻微好转(0.001~0.010) | 2 651.25 | 34.33 | 3 432.26 | 45.06 |
明显好转(>0.010) | 178.78 | 2.31 | 49.14 | 0.65 |
1 |
罗必良, 万燕兰, 洪炜杰, 等. 土地细碎化、服务外包与农地撂荒: 基于9省区2704份农户问卷的实证分析[J]. 经济纵横, 2019(7): 63-73.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
2 |
吴诗嫚, 叶艳妹, 张超正, 等. 不同模式农地整治对耕地细碎化的影响效应及其区域差异: 来自湖北省江汉平原与武陵山区的经验证据[J]. 中国土地科学, 2021, 35(7): 98-100.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
3 |
李 倩. 数量时代过去产能时代到来: 国土资源部土地整理中心副主任郧文聚谈高标准农田建设[J]. 中国土地, 2012(3): 8-11.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
4 |
郧宛琪, 朱道林, 汤怀志. 中国土地整治战略重塑与创新[J]. 农业工程学报, 2016, 32(4): 1-8.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
5 |
中华人民共和国农业农村部. 全国高标准农田建设规划(2021-2030 年)[EB/OL].(2021-09-16)[2023-09-06].
{{custom_citation.content}}
{{custom_citation.annotation}}
|
6 |
陈 正, 刘瀛弢, 贺德俊, 等. 中国高标准农田建设现状与发展趋势[J]. 农业工程学报, 2023, 39(18): 234-241.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
7 |
张 娜. 新疆农业高效节水灌溉发展现状及“十三五”发展探讨[J]. 中国水利, 2018(13): 36-38, 45.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
8 |
赵 波. 农田水利工程中高效节水灌溉技术应用分析[J]. 农业工程与装备, 2023, 50(3): 42-44.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
9 |
卢诗卉, 赵红莉, 蒋云钟, 等. 基于多源遥感数据和水量平衡原理的灌溉用水量分析[J]. 水利学报, 2021, 52(9): 1 126-1 135.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
10 |
梁冰洁, 杨 芸, 王军涛, 等. 基于3S的小开河灌区农业灌溉需水量预测研究[J]. 人民黄河, 2023, 45(8): 26-31.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
11 |
王 琰, 周亚男, 汪顺营. 基于Sentinel-2时序影像的地块尺度灌溉耕地提取[J]. 节水灌溉, 2023(11): 91-98.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
12 |
周林康, 郭 磊, 晋 华. 基于ESA CCI遥感数据的山西省土壤水时空变化特征及影响因子分析[J]. 节水灌溉, 2023(7): 52-59, 66.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
13 |
李更生, 鲁小新, 雷小牛, 等. 新疆沙雅县渭干河灌区南疆农业高效节水增收试点实践与探索[J]. 中国水利, 2020, 71(9): 51-54.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
14 |
王建邦, 赵 军, 李传华, 等. 2001-2015年中国植被覆盖人为影响的时空格局[J]. 地理学报, 2019, 74(3): 504-519.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
15 |
张 飞, 塔西甫拉提·特依拜, 丁建丽, 等. 干旱区土壤盐渍化及其对生态环境的损害评估: 以新疆沙雅县为例[J]. 自然灾害学报, 2009, 18(4): 55-62.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
16 |
努尔卡木里·玉素甫, 满苏尔·沙比提. 新疆沙雅县气候变化特征分析[J]. 新疆师范大学学报(自然科学版), 2011, 30(1): 13-19.
Nurkamil·YUSUF, Mansur·SABIT. Analysis on the climatic change characteristics of Shaya County in Xinjiang[J]. Journal of Xinjiang Normal University (Natural Sciences Edition), 2011, 30(1): 13-19.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
17 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
18 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
19 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
20 |
牛乐乐, 张必成, 贾天忠, 等. 青海省海西州土地利用变化强度分析与稳定性研究[J]. 水土保持学报, 2021, 35(2): 152-159.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
21 |
杨清可, 段学军, 王 磊, 等. 基于“三生空间”的土地利用转型与生态环境效应: 以长江三角洲核心区为例[J]. 地理科学, 2018, 38(1): 97-106.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
22 |
于海达, 杨秀春, 徐 斌, 等. 草原植被长势遥感监测研究进展[J]. 地理科学进展, 2012, 31(7): 885-894.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
23 |
王 娟, 李宝林, 余万里. 近30 年内蒙古自治区植被变化趋势及影响因素分析[J]. 干旱区资源与环境, 2012, 26(2): 132-138.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
24 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
25 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
26 |
花 顶, 胡 实, 莫兴国. 水利工程对年楚河流域农业水资源利用效率和作物生产力的影响[J]. 农业工程学报, 2022, 38(14): 98-107.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
27 |
涂 又, 姜亮亮, 刘 睿, 等. 1982-2015年中国植被NDVI时空变化特征及其驱动分析[J]. 农业工程学报, 2021,37(22): 75-84.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
28 |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
29 |
邵全琴, 刘树超, 宁 佳, 等. 2000-2019年中国重大生态工程生态效益遥感评估[J]. 地理学报, 2022, 77(9): 2 133-2 153. SHAO Q Q, LIU S C, NING J,et al. Assessment of ecological benefits of key national ecological projects in China in 2000-2019 using remote sensing[J]. Acta Geographica Sinica, 2022, 77(9): 2 133-2 153.
{{custom_citation.content}}
{{custom_citation.annotation}}
|
{{custom_ref.label}} |
{{custom_citation.content}}
{{custom_citation.annotation}}
|
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