地理科学 ›› 2018, Vol. 38 ›› Issue (1): 122-134.doi: 10.13249/j.cnki.sgs.2018.01.014

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基于物质量评估的贵州南部地区生态系统服务及其县域差异比较

唐玉芝1,2(), 邵全琴1(), 曹巍1, 杨帆1,2, 刘璐璐3, 吴丹4, 周书贵5   

  1. 1.中国科学院地理科学与资源研究所陆地表层格局与模拟院重点实验室, 北京 100101
    2.中国科学院大学,北京 100049
    3.成都大学建筑与土木工程学院,四川 成都 610106
    4.环境保护部南京环境科学研究所,江苏 南京 210042
    5.北京师范大学遥感科学与工程研究院,北京100875
  • 收稿日期:2016-12-26 修回日期:2017-03-22 出版日期:2018-01-10 发布日期:2018-01-10
  • 作者简介:

    作者简介:唐玉芝(1991-),女,广东普宁人,博士研究生,主要从事地图学与地理信息系统专业。E-mail: tangyz.14b@igsnrr.ac.cn

  • 基金资助:
    国家重点研发计划课题(2017YFC0506501)资助

The Ecosystem Services and Its Spatial Variation at Countyscale in the Southern Guizhou Based on Physical Assessment Method

Yuzhi Tang1,2(), Quanqin Shao1(), Wei Cao1, Fan Yang1,2, Lulu Liu3, Dan Wu4, Shugui Zhou5   

  • Received:2016-12-26 Revised:2017-03-22 Online:2018-01-10 Published:2018-01-10
  • Supported by:
    National Key Research and Development Program of China(2017YFC0506501).

摘要:

以贵州南部地区为例,对涵养水源、固碳释氧、净化大气环境、保育土壤和生物多样性保护5个功能类别共14项指标的生态系统服务物质量进行了区域尺度和县域尺度上的估算。结果表明:贵州南部地区林草生态系统年调节水量145.41×108m3,年固碳量和年释氧量分别为819.96×104t和1 538.48×104t,年提供负离子达2.32×1025个,年吸收二氧化硫(SO2)、氟化物(F)、氮氧化物(NOX)分别达到58.07×104t、1.29×104t和7.76×104t,年滞尘量1.04×108t,年固土总量9.07×108t,年保育N、P、K以及有机质量分别为184.81×104t、59.26×104t、1 138.80×104t以及4 045.85×104t,平均生物多样性综合评价指数为54.87;各类生态系统服务物质量均表现出明显的空间分布趋势,整体表现为东高西低,南高北低;县域尺度上,黎平县、榕江县、从江县和望谟县提供的生态系统服务物质量最多,普定县、三穗县、长顺县和丹寨县则最少;就生态系统服务供给能力而言,雷山县、望谟县、榕江县和从江县最强,兴仁县、普定县、长顺县和贞丰县则最弱。

关键词: 生态系统服务, 物质量评估方法, 贵州南部地区, 县域尺度

Abstract:

Quantitative assessment for ecosystem services(ES) is perceived as the basis of decision-making to optimize the allocation of regional environmental resources and to formulate eco-compensation policies. Using physical assessment method (PAM) to estimate regional ES could surmount the limitation of traditional valuation method which was effected deeply by price factor and incapable of reflecting the dynamic characteristic of ES. In addition, exploring the variation of ES at county scale is important to reveal spatial inequality of regional eco-resources, therefore to optimize ecosystem spatial structure and harmonize regional economic development. Based on the PAM, this paper estimated the physical quantity of main ES within southern Guizhou Region, which was specialized into fourteen indices of five categories consist of water conservation, carbon fixation and oxygen release, atmosphere environmental purification, soil conservation and biodiversity protection, at both regional and county scale. Plenty of methods including the rainfall storage capacity method, revised universal soil loss equation (RUSLE), and biodiversity composite assessment index method were employed. The results indicated that the forest and grassland ecosystem in Southern Guizhou regulates water 1.45×1010m3/a, fixes carbon 8.20×106t/a, releases oxygen 1.54×107t/a, supplies negative-ions 2.32×1025/a while absorbing of sulfur dioxide(SO2), Fluoride(F), Nitrous oxides(NOX) and dust 5.81×105t, 1.29×104t, 7.76×104t and 1.04×108t per year, respectively. The soil conservation approaches 9.07×108t/a, reducing loss of N, P, K and organic matter 1.85×106t, 5.93×105t, 1.14×107t and 4.05×107t per year, respectively. The average biodiversity composite assessment index reaches 54.87. It presented a pattern of high in east and south, low in west and north as a whole in the spatial distribution of physical quantity at each categories of ES. At county scale, Liping, Rongjiang, Congjiang and Wangmo were estimated to have provisioned the most physical quantity of ES, while Puding, Sansui,Changshun and Danzhai being the less ones. In terms of the capacity of provisioning ES, the strongest counties were Leishan, Wangmo, Rongjiang and Congjiang, and the weakest ones were Xingren, Puding, Changshun and Zhenfeng.

Key words: ecosystem services, physical assessment method, the southern Guizhou Region, county scale

中图分类号: 

  • X171