Evaluation of water supply function in the Economic Belt of the Northern Slope of the Tianshan Mountains based on the InVEST model

IF 4 3区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Climate Services Pub Date : 2024-09-28 DOI:10.1016/j.cliser.2024.100519

Wei Liu , Hao Tian , Xingang Xu , Guang Yang

{"title":"Evaluation of water supply function in the Economic Belt of the Northern Slope of the Tianshan Mountains based on the InVEST model","authors":"Wei Liu , Hao Tian , Xingang Xu , Guang Yang","doi":"10.1016/j.cliser.2024.100519","DOIUrl":null,"url":null,"abstract":"<div><div>The Economic Belt of the Northern Slope of the Tianshan Mountains (EBNSTM) is a composite ecosystem with mountains, oases, and desert areas; it also serves as an active area for anthropogenic activities. Frequent changes in soil and water resources have significant impacts on regional ecosystems. However, research on the ecosystem water yield function of EBNSTM is relatively limited; additionally, the spatiotemporal variations in the water supply function based on land use changes have not been sufficiently elucidated. This study aimed to explore the land use changes and the spatial variability of water supply service functions in the region at the macro level and uses the land transfer matrix as an important tool to study the changes in land use in the different years of 2000, 2005, 2010, 2015, and 2020. Using the InVEST model, we conducted a quantitative assessment and comprehensive study on the water supply function of EBNSTM across the aforementioned years. Additionally, the study delved into the structure of ecosystem service functions, alongside investigating the spatial and temporal variability of ecosystem services under the multi-scale units of administrative divisions, ecological zones, and land classes. We found that during the 20-year period, the area of construction land of EBNSTM increased by 1089 km<sup>2</sup>, with the highest dynamic change rate of 4.09 %; 2015–2020 period was the most drastic period of change for each land use type. The average multi-year depth of water production was 87.49 mm, totaling 71.59 × 10<sup>8</sup> m<sup>3</sup>. The spatial distribution pattern of the water supply function in the study area during the last 20 years consistently exhibited a distinct pattern: mountainous areas displayed the highest water supply capacity, followed by oases, and deserts ranked the lowest. Further, the water supply service function within the study area is currently experiencing a modest rate of increase. The rate of change in water supply depth was 2.76 mm/a, while the rate of change in water supply volume was 0.47 × 10<sup>8</sup> m<sup>3</sup>/a. Areas with enhanced water supply capacity are mostly distributed in the southeast of EBNSTM, whereas the northwest, encompassing the mountainous areas, exhibited a declined water supply capacity. Between 2000 and 2020, the water supply capacity in the study area was ranked as follows: woodland > grassland > unutilized land > cultivated land > urban construction land, with woodland displaying the strongest water supply capacity. When woodlands, grasslands, and croplands were converted to other land use types, their water supply functions generally decreased, and vice versa. Our findings provide a scientific basis for the sustainable management of water and soil resources in EBNSTM.</div></div>","PeriodicalId":51332,"journal":{"name":"Climate Services","volume":"36 ","pages":"Article 100519"},"PeriodicalIF":4.0000,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Climate Services","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2405880724000748","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

The Economic Belt of the Northern Slope of the Tianshan Mountains (EBNSTM) is a composite ecosystem with mountains, oases, and desert areas; it also serves as an active area for anthropogenic activities. Frequent changes in soil and water resources have significant impacts on regional ecosystems. However, research on the ecosystem water yield function of EBNSTM is relatively limited; additionally, the spatiotemporal variations in the water supply function based on land use changes have not been sufficiently elucidated. This study aimed to explore the land use changes and the spatial variability of water supply service functions in the region at the macro level and uses the land transfer matrix as an important tool to study the changes in land use in the different years of 2000, 2005, 2010, 2015, and 2020. Using the InVEST model, we conducted a quantitative assessment and comprehensive study on the water supply function of EBNSTM across the aforementioned years. Additionally, the study delved into the structure of ecosystem service functions, alongside investigating the spatial and temporal variability of ecosystem services under the multi-scale units of administrative divisions, ecological zones, and land classes. We found that during the 20-year period, the area of construction land of EBNSTM increased by 1089 km², with the highest dynamic change rate of 4.09 %; 2015–2020 period was the most drastic period of change for each land use type. The average multi-year depth of water production was 87.49 mm, totaling 71.59 × 10⁸ m³. The spatial distribution pattern of the water supply function in the study area during the last 20 years consistently exhibited a distinct pattern: mountainous areas displayed the highest water supply capacity, followed by oases, and deserts ranked the lowest. Further, the water supply service function within the study area is currently experiencing a modest rate of increase. The rate of change in water supply depth was 2.76 mm/a, while the rate of change in water supply volume was 0.47 × 10⁸ m³/a. Areas with enhanced water supply capacity are mostly distributed in the southeast of EBNSTM, whereas the northwest, encompassing the mountainous areas, exhibited a declined water supply capacity. Between 2000 and 2020, the water supply capacity in the study area was ranked as follows: woodland > grassland > unutilized land > cultivated land > urban construction land, with woodland displaying the strongest water supply capacity. When woodlands, grasslands, and croplands were converted to other land use types, their water supply functions generally decreased, and vice versa. Our findings provide a scientific basis for the sustainable management of water and soil resources in EBNSTM.

查看原文本刊更多论文

基于 InVEST 模型的天山北坡经济带供水功能评估

天山北坡经济带（EBNSTM）是一个由山地、绿洲和沙漠地区组成的复合生态系统，同时也是人类活动的活跃地区。水土资源的频繁变化对区域生态系统产生了重大影响。然而，有关 EBNSTM 生态系统产水量函数的研究相对有限；此外，基于土地利用变化的供水函数时空变化也未得到充分阐明。本研究旨在从宏观层面探讨该地区土地利用变化及供水服务功能的空间变异，并以土地转移矩阵为重要工具，研究 2000 年、2005 年、2010 年、2015 年和 2020 年不同年份的土地利用变化。利用 InVEST 模型，我们对 EBNSTM 在上述年份的供水功能进行了定量评估和综合研究。此外，研究还深入探讨了生态系统服务功能的结构，并调查了行政区划、生态区和地类等多尺度单元下生态系统服务的时空变异性。我们发现，20年间，鄂北生态科技示范区建设用地面积增加了1089平方公里，动态变化率最高，为4.09%；2015-2020年是各土地利用类型变化最剧烈的时期。多年平均产水深度为 87.49 毫米，共计 71.59×108 立方米。近 20 年来，研究区供水功能的空间分布呈现出明显的规律：山区供水能力最高，绿洲次之，荒漠最低。此外，研究区内的供水服务功能目前正经历着适度的增长。供水深度变化率为 2.76 毫米/年，供水量变化率为 0.47 × 108 立方米/年。供水能力增强的地区主要分布在 EBNSTM 的东南部，而包括山区在内的西北部的供水能力则有所下降。2000 年至 2020 年，研究区的供水能力依次为：林地、草地、未利用地、耕地、城市建设用地，其中林地的供水能力最强。当林地、草地和耕地转变为其他土地利用类型时，其供水功能普遍下降，反之亦然。我们的研究结果为东北荒漠区水土资源的可持续管理提供了科学依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Climate Services Multiple-

CiteScore

5.30

自引率

15.60%

发文量

期刊介绍： The journal Climate Services publishes research with a focus on science-based and user-specific climate information underpinning climate services, ultimately to assist society to adapt to climate change. Climate Services brings science and practice closer together. The journal addresses both researchers in the field of climate service research, and stakeholders and practitioners interested in or already applying climate services. It serves as a means of communication, dialogue and exchange between researchers and stakeholders. Climate services pioneers novel research areas that directly refer to how climate information can be applied in methodologies and tools for adaptation to climate change. It publishes best practice examples, case studies as well as theories, methods and data analysis with a clear connection to climate services. The focus of the published work is often multi-disciplinary, case-specific, tailored to specific sectors and strongly application-oriented. To offer a suitable outlet for such studies, Climate Services journal introduced a new section in the research article type. The research article contains a classical scientific part as well as a section with easily understandable practical implications for policy makers and practitioners. The journal''s focus is on the use and usability of climate information for adaptation purposes underpinning climate services.