[1]荣 浩,何京丽*,张 欣,等.草地不同恢复时限水分动态与生产力的关系[J].江苏水利,2018,(09):6-10.
 RONG Hao,HE Jingli*,ZHANG Xin,et al.Relationship between moisture dynamics and productivity in different restoration time limit of grassland[J].JIANGSU WATER RESOURCES,2018,(09):6-10.
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草地不同恢复时限水分动态与生产力的关系()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年09期
页码:
6-10
栏目:
生态与环境
出版日期:
2018-09-15

文章信息/Info

Title:
Relationship between moisture dynamics and productivity in different restoration time limit of grassland
文章编号:
1007-7839(2018)09-0006-05
作者:
荣 浩1何京丽1*张 欣1张 林2杨红艳2
1.水利部牧区水利科学研究所,内蒙古 呼和浩特 010020; 2.内蒙古蒙草生态环境(集团)股份有限公司,内蒙古 呼和浩特 010010
Author(s):
RONG Hao1HE Jingli1*ZHANG Xin1ZHANG Lin2YANG Hongyan2
1.Institute of Water Resources for Pastoral Area,Ministry of Water Resources,Hohhot 010020,Inner Mongolia;2.Inner Mongolia M-grass Ecology and Environment (Group)Co.,Ltd.,Inner Mongolia 010010,Hohhot
关键词:
荒漠草原地上生物量土壤含水量水分利用效率
Keywords:
desert steppeaboveground biomasssoil moisturewater use efficiency
分类号:
S157.2
文献标志码:
B
摘要:
以荒漠草原典型区域不同封育年限的天然草地为研究对象,研究不同恢复时限下草地初级生产力及土壤水分、植物耗水量、水分利用效率的变化,分析初级生产力与土壤水、草地生态耗水等水分因子之间的关系,研究结果表明,恢复时限在3年以上,草地初级生产力有显著提高,恢复时限为5年时草地表层土壤含水量显著高于恢复1年草地、恢复3年草地和放牧样地。水分因子与不同恢复时限下草地初级生产力的相关性依次为水分利用效率>土壤含水量>耗水量,不同恢复时限下草地初级生产力与水分利用效率之间呈二次曲线关系(y=-33.604x2+407.41x-346.78,R2=0.8772)。
Abstract:
Taking the natural grassland with different enclosure durations in typical desert steppe as the research object, the changes between grassland primary productivity and soil water, plant water consumption and water use efficiency in different restoration time limit were studied.The relationships between primary productivity and water factors such as soil water and water consumption of grassland ecological water consumption were analyzed.The result showed that the grassland primary productivity had been significantly improved when the recovery time limit was over three years, and the grassland surface soil water content was significantly higher than the restoration time limit of one year, three years and grazing area when the recovery time limit was five years.The correlation between water factor and the primary productivity of grassland under different restoration time limits was that water use efficiency>soil moisture>water consumption.There was a two curve relationship between grassland primary productivity and water use efficiency under different restoration time limit (y=-33.604x2+407.41x-346.78, R2= 0.8772).

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备注/Memo

备注/Memo:
收稿日期:2018-06-29
基金项目:国家重点研发计划项目“荒漠化退化草地治理技术及示范”(2016YFC0500500)
作者简介:荣浩(1969—),男,硕士,高级工程师,研究方向:草地水土保持与生态用水。
通讯作者:何京丽(1960—),女,本科,教授级高级工程师,研究方向:牧区水利与水土保持。
更新日期/Last Update: 2018-09-15