基于草地畜牧业生产的三江源地区承载力多情景模拟分析
王穗子(1990- ),女,四川巴中人,博士,研究方向为草地生态系统监测与评估。E-mail: wangsz.16b@igsnrr.ac.cn |
收稿日期: 2021-03-20
修回日期: 2022-02-22
网络出版日期: 2022-09-28
基金资助
第二次青藏高原综合科学考察研究项目(2019QZKK0608)
中国博士后科学基金面上资助项目(2020M670427)
中国科学院战略性先导科技专项(XDA20090000)
Multi-scenario simulations of carrying capacity of the Three River Headwaters Region based on animal husbandry production
Received date: 2021-03-20
Revised date: 2022-02-22
Online published: 2022-09-28
三江源地区是我国生态安全的重要屏障,同时也是我国最主要的畜牧业生产基地之一,在保证草地资源可持续利用前提下,探究合理的人口容量对该区的生态保护建设和可持续发展具有重要意义。通过模型模拟草地理论载畜量以估算畜牧业产值,设定三种居民生活水平情景,模拟不同情景不同时期下的适度人口容量,分析人口承载力的空间差异性。结果表明:“十五”期间,三种情景下全区人口承载力呈富余状态;“十一五”和“十二五”期间在当前居民和小康水平情景的人口容量尚有结余;到“十三五”期间,三种情景下人口承载力总体均超载,但空间分布不同,在当前居民、小康和富裕生活水平情景下,分别有11个、8个和2个县的人口容量尚有结余,人口承载力超载地区主要分布于三江源地区东部。应根据现有资源分布和符合主体功能要求的方向进行调整和优化人口结构,将对该地区可持续发展战略具有重要意义。
王穗子 , 樊江文 , 张雅娴 , 官惠玲 , 张海燕 . 基于草地畜牧业生产的三江源地区承载力多情景模拟分析[J]. 自然资源学报, 2022 , 37(7) : 1893 -1902 . DOI: 10.31497/zrzyxb.20220716
The Three River Headwaters Region is an important barrier for ecological security and one of the most important animal husbandry production bases in China. Under the premise of ensuring sustainable utilization of grassland resources, exploring optimal population capacity is of great significance to the ecological protection construction and sustainable development of this region. In this study, we simulated the theoretical animal carrying capacity of grassland, and then estimated the production value of animal husbandry. We evaluated the optimal population capacity in different periods and spatial differences in population capacity under three scenarios of residents' living standards. The results show that the population capacity of this region was in a surplus state under the three scenarios during the "Tenth Five-Year Plan" period (2001-2005); the population capacity under the current situation and well-off level was still in balance during the "Eleventh Five-Year" (2006-2010) and "Twelfth Five-Year" periods (2011-2015); by the "Thirteenth Five-Year Plan" period (2016-2020), the population capacity of the three scenarios relying only on the production value of animal husbandry was generally overloaded, but there were differences in spatial distribution. The areas with overloaded capacity are mainly distributed in the east of the study region. Under the current situation, well-off, and prosperous living standards scenarios, there are 11 counties, 8 counties, and 2 counties with surplus population capacity, respectively. The regional population structure is adjusted and optimized in accordance with the existing resource distribution and the direction that meets the main functional requirements, which is of great significance to the sustainable development strategy of the region.
图2 2000—2017年三江源地区生产总值、人口数量和牲畜数量的变化趋势Fig. 2 Changes in the gross domestic product, population, and livestock number of the Three River Headwaters Region during 2000-2017 |
表1 三种居民生活水平情景人均可支配收入情况Table 1 The per capita disposable income under different scenarios of living standards |
不同生活 水平情景 | “十五”期间 | “十一五”期间 | “十二五”期间 | “十三五”期间 | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
均值/元 | 斜率/(元/yr) | 均值/元 | 斜率/(元/yr) | 均值/元 | 斜率/(元/yr) | 均值/元 | 斜率/(元/yr) | ||||
情景1 | 3754.26 | 331.63 | 6636.97 | 892.63 | 12926.50 | 1447.14 | 19020.03 | 1727.75 | |||
情景2 | 5130.86 | 575.79 | 9853.16 | 1297.54 | 18300.86 | 1848.86 | 26007.60 | 2203.50 | |||
情景3 | 15265.60 | 1495.70 | 26328.40 | 2755.50 | 43569.20 | 3479.60 | 59158.53 | 4938.80 |
[1] |
|
[2] |
封志明, 李鹏. 承载力概念的源起与发展: 基于资源环境视角的讨论. 自然资源学报, 2018, 33(9): 1475-1489.
[
|
[3] |
|
[4] |
陈先鹏, 方恺, 彭建, 等. 资源环境承载力评估新视角: 行星边界框架的源起、发展与展望. 自然资源学报, 2020, 35(3): 513-531.
[
|
[5] |
|
[6] |
|
[7] |
|
[8] |
|
[9] |
徐敏云, 贺金生. 草地载畜量研究进展: 概念、理论和模型. 草业学报, 2014, 23(3): 313-324.
[
|
[10] |
李娜, 陈克龙. 青海省限制开发区人口容量研究. 中国人口·资源与环境, 2011, 21(03): 9-12.
[
|
[11] |
高晓路, 陈田, 樊杰. 汶川地震灾后重建地区的人口容量分析. 地理学报, 2010, 65(2): 164-176.
[
|
[12] |
于慧, 王根绪, 杨燕, 等. 草地绿色承载力概念及其在国家公园中的应用框架. 生态学报, 2020, 40(20): 7248-7254.
[
|
[13] |
董锁成, 周长进, 王海英. “三江源”地区主要生态环境问题与对策. 自然资源学报, 2002, 17(6): 713-720.
[
|
[14] |
崔姹, 王明利, 胡向东. 我国草牧业推进现状、问题及政策建议: 基于山西、青海草牧业试点典型区域的调研. 华中农业大学学报: 社会科学版, 2018, (3): 73-80.
[
|
[15] |
|
[16] |
苏萍, 边玲玲, 王卷乐. 玛多县生态环境承载力计算与评价. 中国人口·资源与环境, 2018, 28(7): 90-93.
[
|
[17] |
徐新良, 刘纪远, 邵全琴, 等. 30年来青海三江源生态系统格局和空间结构动态变化. 地理研究, 2008, 27(4): 829-838.
[
|
[18] |
|
[19] |
|
[20] |
张良侠, 樊江文, 邵全琴, 等. 生态工程前后三江源草地产草量与载畜压力的变化分析. 草业学报, 2014, 23(5): 116-123.
[
|
[21] |
刘玉洁, 代粮, 张婕, 等. 资源承载力监测: 以西藏“一江两河”地区为例. 自然资源学报, 2020, 35(7): 1699-1713.
[
|
[22] |
|
[23] |
黄琦. 基于GIS的三江源地区生态环境变化与人类活动影响研究. 北京: 中央民族大学, 2012.
[
|
[24] |
高雅灵, 林慧龙, 周祯莹, 等. 三江源地区可持续发展的生态足迹. 草业科学, 2019, 36(1): 11-19.
[
|
[25] |
杨帆, 邵全琴, 郭兴建, 等. 玛多县大型野生食草动物种群数量对草畜平衡的影响研究. 草业学报, 2018, 27(7): 1-13.
[
|
/
〈 |
|
〉 |