摘要
草地生态系统的碳循环与水循环过程不是相互独立的循环过程,而是存在相互作用、相互影响的耦合关系的生态学过程。基于此,综述了土壤水碳耦合相关的国内外研究进展,概述了草地生态系统土壤水分、碳库及土壤水分和有机碳的相互关系,介绍了水碳耦合的基本过程、基本机制、不同空间尺度水碳耦合关系、水分利用率、蒸散发及水碳耦合模型。大量的观测研究已经证明水、碳之间存在着密切的耦合关系,草地生态系统水碳耦合关系的研究正处于起步阶段,需要进行更为系统深入的研究。
The carbon and water cycles in grassland ecosystems are not independent processes but ecological processes characterized by coupling and mutual influence.This paper first presents the research progress and findings on water-carbon coupling of soil at home and abroad.It then outlines the interrelationships between soil moisture and carbon storage,and between soil moisture and organic carbon in grassland ecosystems.Finally,it introduces the basic processes and mechanisms of water-carbon coupling,the coupling relationships at different spatial scales,water use efficiency,evapotranspiration,and water-carbon coupling models.Abundant observational studies have demonstrated the close coupling relationship between carbon and water.However,research on water-carbon coupling in grassland ecosystems is still in its early stage and requires more systematic and in-depth investigations.
作者
马菁
袁媛
Ma Jing;Yuan Yuan(Institute of Agricultural Economy and Information Technology,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002;Beijing Changping District Bureau of Landscaping and Greening,Beijing 102299)
出处
《宁夏农林科技》
2023年第6期42-46,共5页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏回族自治区农业科技自主创新专项科技创新引导项目“宁夏东部风沙区不同管理方式对草地生态系统碳平衡的影响研究”(NKYJ-20-11)。
关键词
草地生态系统
土壤
水碳耦合
Grassland ecosystem
Soil
Water-carbon coupling
