1. 甘肃省水土保持科学研究所,兰州,730020
2. 甘肃省水利厅兰州水土保持科学试验站,兰州,730021
3. 甘肃省水利厅水土保持局,兰州,730000
[ "王彦武(1982-),男,博士,高级工程师,主要从事水土保持与荒漠化防治研究。E-mail:wang_yanwu@163.com" ]
纸质出版:2019
移动端阅览
王彦武, 牛莉婷, 张峰, 等. 黄土区高标准梯田生态服务功能及其价值[J]. 水土保持学报, 2019,33(6):190-196.
WANG Yanwu, NIU Liting, ZHANG Feng, et al. Ecological Service Function and Its Value of High-standard Terrace in Loess Region[J]. 2019, 33(6): 190-196.
王彦武, 牛莉婷, 张峰, 等. 黄土区高标准梯田生态服务功能及其价值[J]. 水土保持学报, 2019,33(6):190-196. DOI: 10.13870/j.cnki.stbcxb.2019.06.027.
WANG Yanwu, NIU Liting, ZHANG Feng, et al. Ecological Service Function and Its Value of High-standard Terrace in Loess Region[J]. 2019, 33(6): 190-196. DOI: 10.13870/j.cnki.stbcxb.2019.06.027.
研究黄土区高标准梯田生态服务功能的变化特征,探讨坡改梯工程对高标准梯田生态服务功能价值的影响趋势和潜力,可为黄土丘陵区探索低投入、高效用和可持续农业发展模式提供理论基础。在庄浪县采用机会成本法和影子工程法等生态经济学方法,界定了黄土区高标准梯田的生态服务功能,选取土壤肥力保持功能、水土保持功能、土壤水分涵养功能3类生态服务功能,构建了高标准梯田生态功能的物质量模型和价值量模型,评估了高标准梯田的生态服务功能和价值。结果表明:每公顷高标准梯田每年为人类提供了约119 667.00 kg的总物质量和114 046.53元的生态服务总价值,其生态功能价值可观;庄浪县坡耕地和高标准梯田的水土流失量分别为82.76,0.05 t/(hm2·a),高标准梯田的水土保持量为82.71 t/(hm2·a),坡耕地改造成高标准梯田对生态服务功能的价值有显著影响;高标准梯田单位面积的水土保持功能价值为3 831.67元/(hm2·a),远低于土壤肥力保持功能价值(88 869.52元/(hm2·a))和土壤水分涵养功能的价值(24 239.20元/(hm2·a)),高标准梯田水土保持功能还有很大的提升空间和升值潜力,应通过梯田产业结构调整,选择合适的经营发展模式,提高梯田单位面积收益,最大限度发挥高标准梯田的水土保持功能。黄土区高标准梯田建设在国民经济发展过程中具有重要的生产、生态和生活功能特征,文中为高标准梯田的生态功能价值核算提供了较为全面的评估方法,研究结果有利于完善黄土区高标准梯田建设过程中生态功能的价值核算方法,最大限度发挥其生态效益,同时挖掘潜在的生态功能和价值,从而实现高标准梯田生态系统的可持续发展。
Studying the change characteristics of high-standard terrace ecological service function in loess region
discussing influence trend and potential of the project of changing mountain slop into terrace on functional value of high-standard terrace ecological service
can provide a theoretical basis for exploring the model of low input
high efficiency and sustainable agricultural development in loess hilly region. The study defined the ecological service function of high-standard terrace with opportunity cost method and shadow engineering method in Zhuanglang county. On the basis of soil fertility maintenance function
soil and water conservation function
and soil moisture conservation function
this paper built the model of material quality and value of ecological service function
and assessed ecological service function and value of high-standard terrace. The results showed:firstly
each hectare of high-standard terrace annually provided the total mass and value of ecological service for human beings respectively about 119 667.00 kg and 114 046.53 yuan
the value of ecological function was considerable. Secondly
soil erosion amount of sloping farmland and high-standard terrace was respectively 82.76 t/(hm2·a) and 0.05 t/(hm2·a)
the amount of soil and water conservation of high-standard terrace was 82.71 t/(hm2·a)
and the transformation of sloping farmland into high-standard terrace had a significant impact on the value of ecological service function. Thirdly
the value of soil and water conservation function of high-standard terrace unit area was 3 831.67 yuan/(hm2·a)
far below the value of soil fertility maintenance function which was 88 869.52 yuan/(hm2·a) and the value of soil moisture conservation function which was 24 239.20 yuan/(hm2·a). There is still a lot of room for improvement and appreciation potential in the function of soil and water conservation in high-standard terrace
adjusting the industrial structure of terrace
selecting appropriate operation and development mode
improving the yield per unit area
and giving full play to the function of high-standard terrace. The construction of high-standard terrace has important features of production
ecology and living functions in the process of national economic development. The study provides a comprehensive evaluation method for the ecological function value accounting of high-standard terrace
and the results are helpful to improve the value accounting method of ecological function
maximize its ecological benefits
also excavate the potential ecological function and value
so as to realize the sustainable development of high-standard terrace ecosystem.
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